# x402-factory Effective Fed Funds Rate (FRED/ALFRED)

> x402-factory Effective Fed Funds Rate (FRED/ALFRED) is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Returns the latest effective federal funds rate print from the Fed via FRED/ALFRED, including first-release vs. revised values, a surprise metric vs. market-implied or trend-model expectations, next release date, and a 12-observation mini-series.

## Facts

- Endpoint: GET https://x402-factory.com/v1/econ/fed-funds?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-factory-effective-fed-funds-rate-fred-alfred-5009ba23
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BUK58jaaz2I51HJpsUp93

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 x402-factory-effective-fed-funds-rate-fred-alfred-5009ba23
```

Example prompt: What's the latest effective federal funds rate print from the Fed — did it come in above or below expectations, were there any revisions, and when's the next release date?

## When to prefer this

Choose this endpoint when you need authoritative Fed-sourced effective federal funds rate data with revision tracking and a built-in surprise calculation against market-implied or trend-model expectations. It is purpose-built for monetary policy monitoring, macro dashboards, and economic event-driven agents. Prefer it over generic FRED wrappers when you need first-release vs. revised value comparison or a pre-computed surprise metric in a single call.

## Known failure modes

- FRED/ALFRED data temporarily unavailable — upstream data source error
- Stale data if Fed has not yet published the latest monthly release
- No market-implied expectation available — falls back to trend-model expectation source
- Malformed or empty response if the x402 payment is not processed correctly
- Rate limit or payment failure resulting in 402 response requiring USDC micropayment

## How this service works

Effective fed funds rate (Fed, monthly): latest print, revisions, surprise — Latest Effective fed funds rate print from the Fed via FRED/ALFRED: first-release vs latest value with a revised flag (revisions never pose as print-day numbers), surprise vs a labeled expectation (market-implied when a matching prediction market exists, else trend-model), next monthly release date, and a 12-observation…

## Output

A JSON object containing: the FRED series ID and title, latest print details (observation date, headline value, units, basis, first-release value, latest value, revised flag), a surprise object with actual vs. expected values and expectation source (market-implied or trend-model), optional linked prediction market info, next monthly release date, a 12-observation recent mini-series array, and a revisions array listing obs dates where first-release and latest values differ.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "title": "Effective Federal Funds Rate",
   "units": "Percent",
   "recent": [
    {
     "value": 4.33,
     "obs_date": "2025-08-01"
    },
    {
     "value": 4.22,
     "obs_date": "2025-09-01"
    },
    {
     "value": 4.09,
     "obs_date": "2025-10-01"
    },
    {
     "value": 3.88,
     "obs_date": "2025-11-01"
    },
    {
     "value": 3.72,
     "obs_date": "2025-12-01"
    },
    {
     "value": 3.64,
     "obs_date": "2026-01-01"
    },
    {
     "value": 3.64,
     "obs_date": "2026-02-01"
    },
    {
     "value": 3.64,
     "obs_date": "2026-03-01"
    },
    {
     "value": 3.64,
     "obs_date": "2026-04-01"
    },
    {
     "value": 3.63,
     "obs_date": "2026-05-01"
    },
    {
     "value": 3.63,
     "obs_date": "2026-06-01"
    },
    {
     "value": 3.63,
     "obs_date": "2026-07-01"
    }
   ],
   "series": "fed-funds",
   "fred_id": "FEDFUNDS",
   "surprise": {
    "actual": 3.63,
    "expected": 3.63,
    "surprise": 0,
    "expectation_detail": "trend-model: naive (prior level)",
    "expectation_source": "trend-model"
   },
   "frequency": "Monthly",
   "revisions": [],
   "latest_print": {
    "revised": false,
    "headline": 3.63,
    "obs_date": "2026-07-01",
    "latest_value": 3.63,
    "headline_basis": "first release level",
    "headline_units": "%",
    "first_released_on": "2026-08-03",
    "first_release_value": 3.63
   },
   "release_name": "H.15 Selected Interest Rates",
   "source_agency": "Board of Governors of the Federal Reserve System (US)",
   "next_release_date": "2026-11-27"
  },
  "meta": {
   "docs": "https://x402-factory.com/docs/econ.series.fed-funds",
   "sources": [
    "fred"
   ],
   "version": "1.0.0",
   "endpoint": "/v1/econ/fed-funds",
   "data_mode": "live",
   "freshness": "daily",
   "request_id": "req_00000000",
   "generated_at": "2026-08-21T03:58:57.915Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-effective-fed-funds-rate-fred-alfred-5009ba23/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-factory.com](https://www.zero.xyz/host/x402-factory.com/llms.txt)