API Evangelist enhancements for Celestia Node Blob Blobstream API

overlay: 1.0.0
info:
  title: API Evangelist enhancements for Celestia Node Blob Blobstream API
  version: 1.0.0
extends: celestia-blobstream-api-openapi.yml
x-generated: '2026-09-17'
x-method: generated
x-source: openapi/celestia-blobstream-api-openapi.yml, openapi/celestia-node-api-openrpc.json, https://docs.celestia.org/llms-full.txt
x-note: Enhancements only. The underlying OpenAPI is never mutated by this overlay; the provider-authoritative
  contract is the OpenRPC document.
actions:
- target: $.info
  description: 'Record the runtime semantics documented at docs.celestia.org but absent from the contract:
    token issuance and non-revocability, the hard request-body cap, and the fact that no write on this
    API is reversible.'
  update:
    x-auth-token-issuance: celestia <node_type> auth <public|read|write|admin> --p2p.network <network>
    x-auth-token-revocable: false
    x-max-request-body-bytes: 16777216
    x-max-concurrent-connections: 500
    x-idempotency: none
    x-reversibility: none
    x-contract-of-record: openapi/celestia-node-api-openrpc.json (OpenRPC 1.2.6, v0.31.4, 80 methods)
    x-source-docs: https://docs.celestia.org/build/rpc/node-api.md
- target: $.servers[0]
  description: 'Annotate the default endpoint. The host is genuinely localhost: the Celestia Node API
    is served by a node the consumer runs, and there is no vendor-hosted base URL to substitute.'
  update:
    x-self-hosted: true
    x-default-port: 26658
    x-network-selector: --p2p.network <celestia|mocha|arabica>
- target: $.paths['/'].post.responses
  description: Add the transport-level failure responses the provider documents in prose but omits from
    the contract. The OpenRPC declares zero errors[] entries across all 80 methods.
  update:
    '401':
      description: Missing or invalid bearer token, or a token minted below the auth level this method
        requires.
    '413':
      description: Request body exceeds the 16 MiB server cap introduced in celestia-node v0.31.3.
    '429':
      description: Per-IP rate limit exceeded. Returned only when the node operator has enabled [RPC.RateLimit];
        no RateLimit-* or Retry-After headers are sent.
- target: $.paths['/'].post
  description: Record that a well-formed JSON-RPC call returns HTTP 200 even when it fails, with the failure
    in the body.
  update:
    x-error-envelope: json-rpc-2.0
    x-error-http-status: 200
    x-error-catalog: errors/celestia-problem-types.yml