Cast LookupGET /v2/farcaster/cast · x402 API by Neynar
Retrieve Farcaster casts (posts) by hash or URL. Returns full cast data including reactions, replies, and embeds.
What does this x402 API do?
Cast Lookup. This is an x402-gated GET API resource from Neynar. TOLL·402 records origin reachable evidence as of 2026-08-24. The listing records $0.01 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.01 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 records origin reachable evidence as of 2026-08-24
- Resource ID
- 4fb054ac4ab2bf7b7eb017bc
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://api.neynar.com/v2/farcaster/cast", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in 402-index
Discovered through discovery.
- Registry record checked
Registry health: healthy.
- Exact route checked
http 402 invalid · accept-0:resource-mismatch
- Origin reachable
HEAD https://api.neynar.com/ returned 404.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.01 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.