Treasury yield-curve spreads + inversion

Derived 2s10s and 3m10y Treasury yield-curve spreads (in basis points) plus a boolean recession-signal flag when the curve is inverted. Source: FRED constant-maturity yields (public domain). No params.

Input

No parameters.

Example output

{
  "recordDate": "2026-06-12",
  "spread2s10sBps": -27,
  "spread3m10yBps": -88,
  "inverted2s10s": true,
  "inverted3m10y": true,
  "asOf": "FRED constant-maturity Treasury yields"
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/yield-curve-spread"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/yield-curve-spread");

Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

Part of these workflows

This tool is one step in a curated multi-tool workflow — agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• Macro economics — Pull the canonical US macro dataset — yield curve, CPI, unemployment, fed funds, Sahm rule — without an API key.

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