# AgentRXI FRED Economic Series Search

> AgentRXI FRED Economic Series Search is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15).

Search 800,000+ Federal Reserve FRED economic data series by keyword, returning metadata like id, title, frequency, units, seasonal adjustment, date range, and copyright status.

## Facts

- Endpoint: GET https://agentrxi.com/v1/fred/search?utm_source=zero.xyz
- Price: $0.003/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-search-4b4a04e1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fiCjL_owyzF4FLTEjgwYx

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-search-4b4a04e1
```

Example prompt: Search FRED for economic series related to 'mortgage rates' and return the top 10 results with their IDs, titles, frequency, and whether they're available to use.

## When to prefer this

Use this endpoint when you need to discover which FRED series exist for a given economic topic before fetching actual data. It's the right first step when you don't already know the series ID, or when you want to compare available series by frequency, units, or seasonal adjustment. Prefer this over BLS or other sibling endpoints when you specifically need Federal Reserve / FRED data covering macroeconomic aggregates, financial conditions, or regional economic indicators.

## Known failure modes

- No matching series found for obscure or misspelled keywords — returns empty results
- Copyrighted series flagged as not servable even if metadata is returned
- Rate limiting or payment failure if x402 USDC payment is not properly handled
- Missing required 'q' query parameter returns a validation error
- Very broad keywords return noisy results requiring further filtering

## How this service works

Search 800,000+ FRED economic series by keywords, most popular first: id, title, frequency, units, seasonal adjustment, date range and whether the series can be served (copyrighted series are flagged).

## Output

A ranked list of FRED economic series matching the keywords, ordered by popularity. Each result includes the series ID, title, frequency (e.g. monthly, quarterly), units, seasonal adjustment type, observation start/end dates, and a flag indicating whether the series can be served (copyrighted series are flagged as unavailable).

## 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": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Keywords"
      },
      "limit": {
       "type": "integer"
      }
     }
    }
   },
   "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-search-4b4a04e1/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)