# AgentRXI FRED Economic Series

> AgentRXI FRED Economic Series is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-15).

Fetches FRED economic time series observations (UNRATE, CPIAUCSL, GDP, DGS10, etc.) with optional transforms, frequency aggregation, and date range filtering, plus series metadata.

## Facts

- Endpoint: GET https://agentrxi.com/v1/fred/series?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentrxi-fred-economic-series-cfdddaa6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K_q_GrXFrzTTygOqn0aSC

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 agentrxi-fred-economic-series-cfdddaa6
```

Example prompt: Pull the monthly US unemployment rate (UNRATE) from FRED for January 2015 through December 2023, expressed as year-over-year percent change.

## When to prefer this

Use this endpoint when you need FRED macroeconomic or financial time series data by a specific series ID, especially when you need built-in transforms (percent change, year-over-year, log) or frequency aggregation without post-processing. Prefer this over BLS endpoints for interest rate, monetary, or broad GDP data; prefer the BLS endpoint on the same platform for labor/price statistics if you want official BLS formatting. Best for agents that know the FRED series ID or can derive it.

## Known failure modes

- Invalid or unknown FRED series ID returns an error — the ID must be exact (e.g. UNRATE, not 'unemployment')
- Invalid units transform code returns an error — must be one of: lin, chg, ch1, pch, pc1, pca, log
- Invalid frequency code returns an error — must be one of: d, w, m, q, a
- Date range with no data available for the series returns empty observations
- Malformed date format (not YYYY-MM-DD) causes a validation error
- Payment not completed (x402) blocks access to results

## How this service works

Any public-domain FRED economic time series by id (UNRATE, CPIAUCSL, GDP, DGS10, thousands more): observations with optional transforms (change, % change, % change from a year ago), frequency aggregation and date range, plus title, units and notes.

## Output

Returns an array of date-value observation pairs for the requested FRED series, along with series metadata including title, units description, and notes. Observations reflect the requested frequency aggregation and unit transformation (e.g. raw level, change, percent change, year-over-year percent change, log).

## 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": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "FRED series id"
      },
      "end": {
       "type": "string",
       "description": "YYYY-MM-DD"
      },
      "limit": {
       "type": "integer"
      },
      "start": {
       "type": "string",
       "description": "YYYY-MM-DD"
      },
      "units": {
       "type": "string",
       "description": "lin, chg, ch1, pch, pc1, pca, log"
      },
      "frequency": {
       "type": "string",
       "description": "d, w, m, q, a"
      }
     }
    }
   },
   "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/agentrxi-fred-economic-series-cfdddaa6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentrxi.com](https://www.zero.xyz/host/agentrxi.com/llms.txt)