WHY ENGLISH?
Turn an API contract into dependable reference documentation that lets a developer identify the right operation, form a valid request, interpret every response and adapt safely as versions change
Writing API reference documentation means identifying the API and version, explaining authentication, naming methods and paths, defining parameters and request bodies, documenting responses and errors, supplying safe examples, and recording versioning and deprecation. English matters because optional, nullable, omitted, empty, deprecated and unsupported describe different contracts.
The OpenAPI Specification 3.2.1, dated 10 September 2026, defines a language-agnostic interface description for HTTP APIs so humans and computers can discover and understand a service without source code or network inspection. Its operation structures distinguish parameters, request bodies and responses, and require a Responses Object to contain at least one response. OpenAPI can express a contract; it does not automatically make the implementation correct or the prose sufficient.
This guide follows a fictional read-only school timetable API. It does not issue credentials, recommend exposing student data, provide production code, approve security, choose a versioning policy or replace a quickstart, SDK guide, architecture record or legal terms. Use the actual provider contract and organisational controls.
Article contents
Open all chapters
- 1. Identify the API, Audience, Environment and Version
- 2. Explain Authentication and Authorisation Boundaries
- 3. Define Shared Conventions Once
- 4. Give Each Operation a Searchable Purpose
- 5. Document Path, Query, Header and Cookie Parameters
- 6. Describe Request Bodies and Content Types
- 7. Document Successful Responses With Meaning
- 8. Document Known Errors and Recovery Actions
- 9. Explain Pagination, Filtering, Ordering and Limits
- 10. Write Examples That Match the Contract
- 11. Generate, Lint and Test Without Abandoning Human Review
- 12. Publish Versioning, Change and Deprecation Clearly
ORIENTATION
What this guide covers
Current fact check
Checked on 9 November 2026, OpenAPI Specification 3.2.1 was dated 10 September 2026 and described OAS as a programming-language-agnostic interface for HTTP APIs. The specification models operations with parameters, request bodies and responses; it says the Responses Object maps response codes to expected responses, must contain at least one response, and should include a successful response when only one is documented. It also treats schemas as helpful but not guaranteed to catch every specification violation.
What this guide does not cover
This article covers planning, writing, generating, checking and maintaining API reference documentation for a defined contract. It does not cover API design approval, implementation, authentication issuance, secret handling, threat modelling, penetration testing, SDK tutorials, quickstarts, architecture, service-level agreements, legal terms, incident response or permission to expose data.
Worked example
Every chapter returns to a fictional read-only school timetable API that returns authorised class sessions and room accessibility information without returning student identities. It is fictional, low-stakes and educational; it does not report a real school, clinical decision or guaranteed outcome.
Did You Know? For api reference documentation, precise communication makes appraisal possible but does not perform the appraisal, remove bias or guarantee transfer.
Warm up with eduKate’s guides to explaining scientific evidence and asking better questions in class.
CHAPTER 1 OF 12
1. Identify the API, Audience, Environment and Version
Why this move matters
State who the reference serves, which contract and deployment it describes, and where stability promises live.
Did You Know? Version identity prevents accidental cross-use.
Start from the exact API contract and version
State who the reference serves, which contract and deployment it describes, and where stability promises live. For The page names the timetable API v2 sandbox and production base URLs separately., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: A hostname alone does not describe availability, permissions or support.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. A hostname alone does not describe availability, permissions or support. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: State who the reference serves, which contract and deployment it describes, and where stability promises live.
- Boundary: A hostname alone does not describe availability, permissions or support.
- Application: The page names the timetable API v2 sandbox and production base URLs separately. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Identify the API, Audience, Environment and Version” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 2 OF 12
2. Explain Authentication and Authorisation Boundaries
Why this move matters
Describe credential type, placement, scope, expiry and approved acquisition route without publishing secrets.
Did You Know? Security language must distinguish identity from permission.
Start from the exact API contract and version
Describe credential type, placement, scope, expiry and approved acquisition route without publishing secrets. For Examples use a clearly fictional bearer token and explain that class access is evaluated separately., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Authentication proves identity or possession; it does not grant every action.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Authentication proves identity or possession; it does not grant every action. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Describe credential type, placement, scope, expiry and approved acquisition route without publishing secrets.
- Boundary: Authentication proves identity or possession; it does not grant every action.
- Application: Examples use a clearly fictional bearer token and explain that class access is evaluated separately. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Explain Authentication and Authorisation Boundaries” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 3 OF 12
3. Define Shared Conventions Once
Why this move matters
Explain media types, dates, time zones, identifiers, nulls, pagination, idempotency and rate-limit conventions used across operations.
Did You Know? Shared rules reduce contradictory repetition.
Start from the exact API contract and version
Explain media types, dates, time zones, identifiers, nulls, pagination, idempotency and rate-limit conventions used across operations. For All timestamps use RFC 3339 and the timetable response includes an explicit local time-zone field., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Do not claim a convention that the live API does not follow.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Do not claim a convention that the live API does not follow. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Explain media types, dates, time zones, identifiers, nulls, pagination, idempotency and rate-limit conventions used across operations.
- Boundary: Do not claim a convention that the live API does not follow.
- Application: All timestamps use RFC 3339 and the timetable response includes an explicit local time-zone field. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Define Shared Conventions Once” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 4 OF 12
4. Give Each Operation a Searchable Purpose
Why this move matters
Name the action in user terms and display the HTTP method and path exactly.
Did You Know? Developers scan reference before reading detail.
Start from the exact API contract and version
Name the action in user terms and display the HTTP method and path exactly. For GET /v2/classes/{classId}/sessions is titled “List authorised class sessions.”, identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: An operation title must not overstate data or permission.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. An operation title must not overstate data or permission. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Name the action in user terms and display the HTTP method and path exactly.
- Boundary: An operation title must not overstate data or permission.
- Application: GET /v2/classes/{classId}/sessions is titled “List authorised class sessions.” Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Give Each Operation a Searchable Purpose” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 5 OF 12
5. Document Path, Query, Header and Cookie Parameters
Why this move matters
For every parameter, state name, location, type, format, requiredness, allowed values, default and interaction rules.
Did You Know? Parameter language determines valid requests.
Start from the exact API contract and version
For every parameter, state name, location, type, format, requiredness, allowed values, default and interaction rules. For weekStart is a required query date; pageSize is optional with documented bounds., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Optional does not mean meaningless when omitted.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Optional does not mean meaningless when omitted. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: For every parameter, state name, location, type, format, requiredness, allowed values, default and interaction rules.
- Boundary: Optional does not mean meaningless when omitted.
- Application: weekStart is a required query date; pageSize is optional with documented bounds. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Document Path, Query, Header and Cookie Parameters” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 6 OF 12
6. Describe Request Bodies and Content Types
Why this move matters
Map fields, nesting, constraints, required properties, examples and supported media types for operations that accept bodies.
Did You Know? Body schemas are executable expectations.
Start from the exact API contract and version
Map fields, nesting, constraints, required properties, examples and supported media types for operations that accept bodies. For A hypothetical bulk lookup body defines classIds as a bounded array with unique values., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Do not add request bodies to methods or operations without a defined contract.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Do not add request bodies to methods or operations without a defined contract. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Map fields, nesting, constraints, required properties, examples and supported media types for operations that accept bodies.
- Boundary: Do not add request bodies to methods or operations without a defined contract.
- Application: A hypothetical bulk lookup body defines classIds as a bounded array with unique values. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Describe Request Bodies and Content Types” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 7 OF 12
7. Document Successful Responses With Meaning
Why this move matters
Give status code, headers, schema, field semantics and a representative example for each supported success outcome.
Did You Know? Readers need both structure and interpretation.
Start from the exact API contract and version
Give status code, headers, schema, field semantics and a representative example for each supported success outcome. For A 200 response distinguishes an empty sessions array from a missing class., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: A schema type does not explain business meaning.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. A schema type does not explain business meaning. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Give status code, headers, schema, field semantics and a representative example for each supported success outcome.
- Boundary: A schema type does not explain business meaning.
- Application: A 200 response distinguishes an empty sessions array from a missing class. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Document Successful Responses With Meaning” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 8 OF 12
8. Document Known Errors and Recovery Actions
Why this move matters
Explain status, stable error identifier, condition, safe message, retryability and corrective next step.
Did You Know? Failures are first-class parts of a contract.
Start from the exact API contract and version
Explain status, stable error identifier, condition, safe message, retryability and corrective next step. For A 403 means the caller lacks class access; the reference does not reveal whether an unrelated class exists., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Error examples must not leak internal traces or sensitive data.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Error examples must not leak internal traces or sensitive data. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Explain status, stable error identifier, condition, safe message, retryability and corrective next step.
- Boundary: Error examples must not leak internal traces or sensitive data.
- Application: A 403 means the caller lacks class access; the reference does not reveal whether an unrelated class exists. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Document Known Errors and Recovery Actions” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 9 OF 12
9. Explain Pagination, Filtering, Ordering and Limits
Why this move matters
State cursor or page semantics, stable ordering, bounds, defaults and how changes affect traversal.
Did You Know? Collection behaviour prevents missing or duplicated records.
Start from the exact API contract and version
State cursor or page semantics, stable ordering, bounds, defaults and how changes affect traversal. For Sessions sort by start time then stable ID, and nextCursor is opaque., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Clients must not infer meaning from an opaque cursor.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Clients must not infer meaning from an opaque cursor. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: State cursor or page semantics, stable ordering, bounds, defaults and how changes affect traversal.
- Boundary: Clients must not infer meaning from an opaque cursor.
- Application: Sessions sort by start time then stable ID, and nextCursor is opaque. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Explain Pagination, Filtering, Ordering and Limits” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 10 OF 12
10. Write Examples That Match the Contract
Why this move matters
Provide safe request and response pairs whose paths, headers, values, status codes and schemas agree.
Did You Know? Consistency makes examples trustworthy.
Start from the exact API contract and version
Provide safe request and response pairs whose paths, headers, values, status codes and schemas agree. For The cURL example uses a sandbox host, fictional token and a response validated against the published schema., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: An example is illustrative, not a complete production application.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. An example is illustrative, not a complete production application. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Provide safe request and response pairs whose paths, headers, values, status codes and schemas agree.
- Boundary: An example is illustrative, not a complete production application.
- Application: The cURL example uses a sandbox host, fictional token and a response validated against the published schema. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Write Examples That Match the Contract” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 11 OF 12
11. Generate, Lint and Test Without Abandoning Human Review
Why this move matters
Validate the machine-readable description, exercise representative calls and review prose, navigation and accessibility.
Did You Know? Automation finds mismatch; people judge meaning.
Start from the exact API contract and version
Validate the machine-readable description, exercise representative calls and review prose, navigation and accessibility. For A contract test confirms documented status codes while a writer checks definitions and cross-links., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: A passing schema validator cannot prove implementation, security or usability.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. A passing schema validator cannot prove implementation, security or usability. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Validate the machine-readable description, exercise representative calls and review prose, navigation and accessibility.
- Boundary: A passing schema validator cannot prove implementation, security or usability.
- Application: A contract test confirms documented status codes while a writer checks definitions and cross-links. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Generate, Lint and Test Without Abandoning Human Review” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
CHAPTER 12 OF 12
12. Publish Versioning, Change and Deprecation Clearly
Why this move matters
Mark introduced and deprecated elements, migration routes, timelines, replacements and end-of-support evidence according to policy.
Did You Know? Lifecycle language lets consumers plan safely.
Start from the exact API contract and version
Mark introduced and deprecated elements, migration routes, timelines, replacements and end-of-support evidence according to policy. For A deprecated roomLabel field points to room.displayName and the official removal policy., identify the base URL, environment, authentication method, stability, media types and version before describing operations.
Document each operation as an executable promise
Name method and path, parameters, request body, responses, errors and permissions with precise requiredness and examples. Preserve this limit: Never invent a removal date or promise indefinite support.
Make examples realistic, safe and internally consistent
Use non-secret sample values, match schemas and status codes, and distinguish illustrative snippets from production-ready applications.
Keep generated and narrative reference in sync
Validate the machine-readable contract, test representative calls and publish version and deprecation changes together. Never invent a removal date or promise indefinite support. Reference explains the contract; a quickstart teaches a first journey and belongs elsewhere.
Practical reader check
- Evidence: Mark introduced and deprecated elements, migration routes, timelines, replacements and end-of-support evidence according to policy.
- Boundary: Never invent a removal date or promise indefinite support.
- Application: A deprecated roomLabel field points to room.displayName and the official removal policy. Name the next output and how it will be checked.
Student, parent and career transfer
Practise “Publish Versioning, Change and Deprecation Clearly” by separating evidence, interpretation, decision and next action. A parent, teacher, supervisor or teammate can ask what supports the sentence and which missing fact could change it. This discipline transfers to school coding projects, software engineering, platform teams, data integration, research software, technical support, quality assurance, developer relations and technical writing without guaranteeing grades, approval, publication, system safety, research validity, employment or future outcomes.
PRACTICE LAB
Build a api reference documentation decision trail
Student route
- Choose one real example or official document inside this guide’s scope.
- Copy its objective and underline actor, action, context, evidence and intended decision.
- Draw the specific reasoning chain used in this article.
- Mark each step reported, inferred, contested or unknown.
- Rewrite the conclusion so it preserves the narrowest important limitation.
Parent or teacher route
Ask the learner to explain turn an api contract into dependable reference documentation that lets a developer identify the right operation, form a valid request, interpret every response and adapt safely as versions change twice: once to a classmate and once to a method specialist. Praise a precise correction and a well-stated unknown; both show disciplined attention to evidence.
Early-career route
Create a one-page api reference documentation audit with source link, date checked, scope, method logic, decisive wording, contrary evidence, limit and next action. A colleague should be able to continue without guessing.
Decision rule
If a shorter explanation removes the condition that made the original claim true, it is not clearer yet. Restore the condition.
Continue with eduKate’s guides to reading course and career information and giving useful feedback in group projects.
USEFUL NEXT READING
Connect this narrow owner to its neighbour
Read the API quickstart guide for a related but different reader job. Return here when the question is specifically how to turn an api contract into dependable reference documentation that lets a developer identify the right operation, form a valid request, interpret every response and adapt safely as versions change. Use each guide for the reader task named in its heading.
For English practice across research, school and career communication, visit the Singapore English Tuition Centre learning site.
FREQUENTLY ASKED QUESTIONS
Questions students and parents often ask
Is API reference the same as a quickstart?
No. Reference documents the contract operation by operation; a quickstart teaches one first successful journey.
Should every possible HTTP status be documented?
Document supported success outcomes and known errors according to the contract; OpenAPI does not require guessing unknown statuses.
Can documentation be generated entirely from OpenAPI?
Generation can create structure, but people must verify business meaning, examples, navigation, accessibility and implementation accuracy.
Should real API keys appear in examples?
No. Use clearly fictional sample values and the approved credential route.
What does optional mean for a parameter?
It means the client may omit it under the contract; document the resulting default or behaviour precisely.
Does accurate reference prove the API is secure?
No. Security design, testing, monitoring and operations require separate evidence.
PRIMARY SOURCES
Read the primary guidance for this api reference documentation
Facts were checked against current official and primary sources on 9 November 2026. Follow the live source for later corrections, completed updates or companion material.
- OpenAPI Specification 3.2.1
- OpenAPI specification versions and schemas
- eduKate API quickstart guide
- eduKate software bug report guide
- eduKate technical specification guide
A cheerful final note
Precise English makes turn an api contract into dependable reference documentation that lets a developer identify the right operation, form a valid request, interpret every response and adapt safely as versions change more generous, not less. People can see how their evidence and values entered the work, where disagreement remains and what a responsible next step looks like.