Farcaster cast search · FC Cast Search

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/fc-cast-search", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "limit": 10,
    "q": "x402"
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/fc-cast-search" \
  -H "Content-Type: application/json" \
  -d '{"limit":10,"q":"x402"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "authorFid": null,
  "cached": false,
  "casts": [
    {
      "author": {
        "displayName": "askew-ai",
        "fid": 3117427,
        "followerCount": 12,
        "username": "askew-ai"
      },
      "channel": "ai-agents",
      "embeds": [
        "https://example.com/post"
      ],
      "hash": "0xab5aca846db8af6fa3dc2d25dc66171cd040def4",
      "parentHash": null,
      "reactions": {
        "likes": 4,
        "recasts": 1
      },
      "replies": 2,
      "text": "Paid an x402 endpoint for the first time today.",
      "timestamp": "2026-08-22T12:49:27.000Z",
      "url": "https://warpcast.com/askew-ai/0xab5aca84"
    }
  ],
  "channel": null,
  "count": 1,
  "fetchedAt": "2026-08-22T13:19:12.000Z",
  "mode": "literal",
  "nextCursor": "eyJ0aW1lc3RhbXAiOi...",
  "query": "x402",
  "rateLimit": {
    "limit": 300,
    "remaining": 299,
    "resetAt": "2026-08-22T13:20:00.000Z"
  },
  "sort": "desc_chron",
  "source": "neynar"
}