Interest Rate Benchmarks

finance

Serving

SOFR, Fed funds, and other benchmark interest-rate series as stable JSON. POST /v1/rate with an optional series selector and get the observations back as one JSON object. Deterministic per data vintage. Pay per request in USDC; no account, no API key.

Endpoint: POST https://agent.pocket.network/v1/rate-benchmarks/v1/rate
Price per call: $0.005 USD
Networks payable on: Base (eip155:8453), Tempo (eip155:4217)
Protocol: rest

Calling it

The first call returns 402 Payment Required with the terms. Sign for those terms and retry the same request with the payment attached.

Example request

A real, working call — the request the service card verifies against.

curl -X POST https://agent.pocket.network/v1/rate-benchmarks/v1/rate \
  -H 'content-type: application/json' \
  -d '{}'

Example response

The response this call returned, captured 2026-09-21 23:48:55 UTC.

{
  "portal": {
    "provenance": "third-party-supplier",
    "serviceId": "rate-benchmarks",
    "schemaCheck": "unchecked"
  },
  "data": {
    "rate": "SOFR",
    "observations": [
      {
        "date": "2026-09-18",
        "percent": 3.85,
        "p1": 3.8,
        "p25": 3.83,
        "p75": 3.9,
        "volume": null
      },
      {
        "date": "2026-09-17",
        "percent": 3.85,
        "p1": 3.7,
        "p25": 3.83,
        "p75": 3.9,
        "volume": null
      },
      {
        "date": "2026-09-16",
        "percent": 3.62,
        "p1": 3.58,
        "p25": 3.6,
        "p75": 3.67,
        "volume": null
      }
    ],
    "count": 5,
    "as_of": "2026-09-21",
    "source": "markets.newyorkfed.org (public)"
  }
}

Try it

Make one real paid call from your own wallet — about $0.005 on Base (eip155:8453). The wallet signs; nothing here holds a key. You'll see exactly what the service answers.

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EndpointRequest body

Supported methods

Methods the registry lists for this service. The portal forwards any call as sent; the supplier decides what it answers, and a delivered answer is settled.

Methods Interest Rate Benchmarks accepts, and whether each reads or writes.
Method	Effect
`GET /v1/health`	read
`GET /v1/version`	read
`POST /v1/rate`	read

Schemas

Published by the service itself. The example above is generated from these.

Request schema

{
  "type": "object",
  "description": "An optional series selector; omit for the default set.",
  "properties": {
    "series": {
      "type": "string",
      "description": "Benchmark series selector, e.g. SOFR."
    }
  },
  "required": []
}

Response schema

{
  "type": "object",
  "description": "For POST /v1/rate, a JSON object whose `observations` array carries the rate series. The exact shape is the service's own and is not pinned here; errors return a JSON object with an `error` field, and the GET routes return their own small JSON documents."
}