overlay: 1.0.0 info: title: API Evangelist enrichment overlay — Kissmetrics products version: 1.0.0 extends: openapi/kissmetrics-products-api-openapi.yml x-generated: '2026-08-13' x-method: generated x-source: API Evangelist enrichment pipeline — runtime semantics harvested from the Kissmetrics documentation and recorded as extensions. The original document is never mutated. actions: - target: $.info description: Record that this document is an API Evangelist assembly of the per-operation OpenAPI documents Kissmetrics publishes on each reference page, and that the API is self-declared beta. update: x-assembled-by: API Evangelist enrichment pipeline x-assembled-from: https://support.kissmetrics.io/reference/ (.md twin of each endpoint page) x-lifecycle-stage: beta x-lifecycle-statement: Kissmetrics states the REST API is "still under heavy development and subject to regular changes" that "could result in breaking changes for developers." - target: $.components.securitySchemes.basicAuth description: Kissmetrics publishes two different Basic-auth credential forms. Record both rather than choosing one. update: x-credential-forms: - form: email:password source: https://support.kissmetrics.io/reference/authorization - form: 'API_KEY: (empty password)' source: https://kissmetrics.io/product/workflows/api x-conflict: The two published pages disagree and neither reconciles the other. - target: $.paths.*.* description: Attach the published rate limit to every operation. Kissmetrics publishes 15 requests per minute as prose on its API product page and declares no 429 response and no rate-limit headers. update: x-rate-limit: requests: 15 window: 1m scope: per-account source: https://kissmetrics.io/product/workflows/api headers: none published exhaustion-status: undocumented - target: $.paths.*.* description: Attach the published error envelope. Kissmetrics returns {status, messages[]} as application/json, not RFC 9457 problem+json. update: x-error-envelope: format: custom-json rfc9457: false fields: - status - messages example: '{"status": 401, "messages": ["Unauthenticated."]}' source: https://support.kissmetrics.io/reference/authorization - target: $.paths.*.* description: Record that Kissmetrics documents no idempotency mechanism for this API. update: x-idempotency: supported: false header: null note: No Idempotency-Key and no replay guidance published for the REST Query API.