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Farcaster Identity & Wallet Resolver
x402
Farcaster Identity & Wallet Resolver is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Bidirectionally resolves Farcaster identities: look up FID, username, custody address, and verified wallets from any of FID, username, or Ethereum address.
Price / call$0.005
Success—
StatusUnknown
How this service works
Bidirectional Farcaster identity and wallet resolver. Give an address to get the FID it belongs to (custody address resolves keyless; a verified address needs the optional enrichment), or give a fid or username to get the canonical identity (fid, username, custody address and verified wallets). Crypto-native reconciliation of social identity and wallet.
Output
Returns the resolved Farcaster identity including FID (integer), username, custody address (Ethereum hex), and a list of verified wallet addresses associated with the account. Direction depends on the query parameter supplied: address → FID/profile, or FID/username → addresses.
Example use cases
Wallet-to-social profile lookup
“I have this Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — can you tell me if it belongs to a Farcaster account and what the username and FID are?”
Airdrop eligibility by Farcaster identity
“I want to send tokens to Farcaster user 'vitalik' — can you find their verified Ethereum wallet addresses so I know where to send the airdrop?”
Social identity enrichment for FID
“Look up Farcaster FID 3 and give me the full identity: username, custody address, and any verified wallets linked to that account.”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/farcaster/resolveWhen to prefer
Choose this endpoint when you need to bridge Farcaster social identity (FID or username) with on-chain Ethereum wallet addresses, or reverse a wallet address to a Farcaster profile. It handles both directions in a single call and returns custody plus all verified wallets, making it ideal for airdrop targeting, on-chain social graph enrichment, or identity verification workflows in crypto-native applications.
Side effects
- Unknown address or FID returns 404 with no matching identity
- A verified address (non-custody) may require optional enrichment to resolve — without it, the lookup may return no result
- Invalid Ethereum address format (not 0x + 40 hex chars) returns a validation error
- Username not found on Farcaster returns empty or 404
- Rate limiting or payment failure may return 402 or 429
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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