# SOFR Rate (Secured Overnight Financing Rate) via FRED

> SOFR Rate (Secured Overnight Financing Rate) via FRED is a paid API for AI agents from finance-api.kdlcfa.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the current Secured Overnight Financing Rate (SOFR) sourced from the Federal Reserve Economic Data (FRED) database

## Facts

- Endpoint: GET https://finance-api.kdlcfa.workers.dev/sofr-rate
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sofr-rate-secured-overnight-financing-rate-via-fred-04cc0a10
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uBK-Yk4PuiClSASOO0fMR

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sofr-rate-secured-overnight-financing-rate-via-fred-04cc0a10
```

Example prompt: What is the current SOFR rate? Pull it from FRED so I can use it in my floating rate note calculation.

## When to prefer this

Choose this endpoint when you need the authoritative SOFR benchmark rate sourced directly from FRED (Federal Reserve Economic Data) for use in loan pricing, derivative valuation, floating rate note calculations, or regulatory compliance. Prefer this over scraped or unofficial sources when accuracy and provenance matter. Best suited for single, on-demand rate lookups rather than bulk historical time series queries.

## Known failure modes

- FRED data source unavailable or delayed — rate may not reflect same-day publication
- No data returned if FRED has not yet published the latest observation (published next business day)
- Payment not processed — HTTP 402 if the $0.01 USDC micropayment is not included
- Network timeout from the Cloudflare Worker if the upstream FRED API is slow

## How this service works

Secured Overnight Financing Rate (SOFR), via FRED (SOFR)

## Output

Returns the latest SOFR rate value as published by FRED, including the rate percentage and the associated date for the observation, providing a current benchmark for overnight secured lending backed by U.S. Treasury securities.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sofr-rate-secured-overnight-financing-rate-via-fred-04cc0a10/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from finance-api.kdlcfa.workers.dev](https://www.zero.xyz/host/finance-api.kdlcfa.workers.dev/llms.txt)