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IETF Internet Standards RFC Reference Oracle

Returns canonical specification URLs and core protocol metadata for foundational IETF RFCs (HTTP, TLS, OAuth, JWT, DNS, TCP, IPv6).

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/ietf-rfc-metadata-lookup?rfc=9110&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"ietf-rfc-metadata-lookup"}

Parameters

Example response (live, compact)

{
  "apiId": "ietf-rfc-metadata-lookup",
  "data_freshness": "cached",
  "data": {
    "rfc_number": 9110,
    "title": "HTTP Semantics (incl. Status 402 Payment Required)",
    "status": "Internet Standard",
    "year": 2022,
    "key_topic": "Core HTTP & Status Codes",
    "datatracker_url": "https://datatracker.ietf.org/doc/html/rfc9110",
    "rfc_editor_url": "https://www.rfc-editor.org/rfc/rfc9110.txt"
  },
  "source": "100% Platform Deterministic Compute / Reference Engine",
  "license": "IETF Public Specification Metadata"
}

Source & license