API Reference & Developer Portal Engineering
Authoritative, tested reference documentation for internal and public APIs
We transform ambiguous backend endpoints and internal RPC interfaces into structured, verified API references with accurate request/response schemas, authentication guides, and real-world code snippets.
Deliverables & Artifacts
Every engagement produces concrete, version-controlled artifacts authored in markdown and standardized schema formats:
- ✓ OpenAPI 3.1 or AsyncAPI compliant schema definitions with complete field typing
- ✓ End-to-end authentication and rate-limiting practical guides
- ✓ Validated cURL, Python, TypeScript, and Go request examples
- ✓ Error catalog with HTTP status codes, error payload schemas, and remediation steps
- ✓ Automated schema contract testing and documentation generation scripts
Engagement Stages & Delivery Timeline
Endpoint inventory, contract verification against staging server, and schema inconsistency discovery.
Schema authoring, field annotations, edge case cataloging, and payload validation.
Code sample generation, error matrix authoring, and CI validation pipeline setup.
Scope Boundaries
Included in Scope
- Complete audit of up to 40 REST endpoints or 25 gRPC/GraphQL service methods
- Payload edge case documentation (pagination, filtering, idempotency keys, webhooks)
- Automated linting rules using Spectral / Redocly / buf CLI
Excluded from Scope
- Building custom web frontends from scratch (we work with standard doc tools: Starlight, VitePress, Docusaurus, Redoc, Mintlify)
- Penetration testing and security auditing