Marketplace · API · x402

agent402.tools/api/fred-series-info

Metadata for a FRED series: title, frequency, units, seasonal adjustment, observation date range, and popularity. Use before /api/fred-series to confirm the series fits your needs.

Endpoint	`https://agent402.tools/api/fred-series-info`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
method	GET
last updated	2026-10-27T11:46:04.958Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agent402.tools/api/fred-series-info
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-9e91837aa842ce14

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}