API Evangelist enhancements for APIMesh

overlay: 1.0.0
info:
  title: API Evangelist enhancements for APIMesh
  version: 1.0.0
  description: >-
    Overlay of API Evangelist annotations on the OpenAPI APIMesh serves at
    https://apimesh.xyz/.well-known/openapi.json (saved verbatim as openapi/_original/apimesh-xyz-openapi.json).
    It records what the pipeline observed on 2026-09-19 without altering the harvested document:
    provenance, the liveness of each declared server, and the payment/discovery context the spec
    itself does not carry. Apply with any Overlay 1.0.0 processor; never edit the original.
  x-generated: '2026-09-19'
  x-method: generated
extends: openapi/apimesh-xyz-openapi.yml
actions:
- target: $.info
  update:
    x-apievangelist-provenance:
      harvested: '2026-09-19'
      source: https://apimesh.xyz/.well-known/openapi.json
      http_status: 200
      owner_check: info.title APIMesh; every servers[] host is *.apimesh.xyz; the same file is committed at public/.well-known/openapi.json in github.com/mbeato/APIMesh
    x-apievangelist-liveness:
      checked: '2026-09-19'
      servers_declared: 23
      servers_answering: 0
      finding: every server root and /preview returned 404 {"error":"Unknown API":"<name>"}; the provider retired these APIs on 2026-05-11 (apis/RETIRED.md) and the served spec was not withdrawn
    x-apievangelist-contract-gaps:
    - no operationIds on any operation
    - no components.schemas, no response bodies described, no parameters declared (the /preview query parameters url=, domain=, email=, name= appear only in the README)
    - the paid endpoints (/check, /analyze, /build, /generate, /validate, /scan) that carry the product are absent; they are listed only at /.well-known/x402
    - no securitySchemes, although the agent card and MPP manifest describe x402, MPP and Bearer API-key access
    x-apievangelist-related:
      agent_card: https://apimesh.xyz/.well-known/agent-card.json
      llms_txt: https://apimesh.xyz/llms.txt
      x402_discovery: https://apimesh.xyz/.well-known/x402.json
      mpp_manifest: https://apimesh.xyz/.well-known/mpp
      root_spec: https://apimesh.xyz/openapi.json
      root_spec_note: a second, newer document (info.version 1.0.0, 4 wedge servers, paths {}) saved as openapi/_original/apimesh-xyz-root-openapi.json
- target: $.servers[*]
  update:
    x-apievangelist-status: retired
    x-apievangelist-observed: '404 {"error":"Unknown API"} on / and /preview, 2026-09-19'
- target: $.paths['/health'].get
  update:
    x-apievangelist-observed: 'still 200 {"status":"ok"} on every *.apimesh.xyz host via the wildcard router'
- target: $.paths['/preview'].get
  update:
    x-apievangelist-observed: '404 on all 23 hosts since 2026-05-11'
    x-apievangelist-payment-context: 'free tier of a pay-per-call endpoint; the paid sibling paths (see x-apievangelist-contract-gaps) answered 402 with WWW-Authenticate: Payment per the provider docs'