OpenAPI Specification

Source identity:

ddx:
  id: resource.openapi-specification
  authoring:
    home: repo

OpenAPI Specification

Source

URL: https://learn.openapis.org/specification/
Accessed: 2026-05-12

Summary

The OpenAPI Specification describes HTTP APIs in a machine-readable format that can support documentation, code generation, testing, and contract-first collaboration. It captures paths, operations, parameters, request and response schemas, status codes, examples, and reusable components.

Relevant Findings

API contracts should define exact paths, methods, parameters, request bodies, responses, status codes, schemas, and examples.
Machine-readable API descriptions help separate interface contracts from implementation details.
Examples and schema constraints make the contract easier for independent clients and servers to validate.
Reusable components help keep error, schema, and response definitions consistent.

HELIX Usage

This resource informs the Contract artifact. HELIX uses it to require explicit normative surfaces, examples, and validation rules for interfaces another team or agent can implement against.

Authority Boundary

This resource applies most directly to HTTP APIs. HELIX contracts can also govern CLI, event, file, library, and protocol interfaces when those surfaces need exact implementation-independent rules.

Innsigle seal: model-primary by HELIX

The signature covers the markdown source of this page, not these HTML bytes. This page quotes that seal; verify it against the source file.

Composition: model-primary
Issuer: HELIX helix
Signing key: ed25519:b0865d76d834a52c48506414d16f4e5a (build key)
Signed source: research/openapi-specification.md
Signed: 2026-09-23T14:11:58Z
Content digest: sha256:f7e50ac8…1f8d44e4

This build key is endorsed by the human key for build signing; the signature is not a detector and not a truth guarantee.

Raw attestation JSON

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attestation file · issuer keys