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Farcaster Reputation Score
x402
Farcaster Reputation Score is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).
Returns a deterministic 0–100 social-reputation score for a Farcaster account (by FID, username, or Ethereum address), with a band classification and per-dimension breakdown for anti-sybil and provenance use cases.
Price / call$0.008
Success—
StatusUnknown
How this service works
Deterministic Farcaster social-reputation score from zero to one hundred for a fid, username or address. Combines account age, verified wallets, a primary address, username presence, follower floor and cast activity into a score, a band and per-dimension reasons. Anti-sybil and provenance signal for crypto agents. Reputation indicators, not a guarantee.
Output
Returns a numeric reputation score between 0 and 100, a named band (e.g. low, medium, high), and a set of per-dimension reason strings covering account age, verified wallets, primary address presence, username presence, follower floor, and cast activity. Serves as an anti-sybil and provenance signal — not a guarantee of trustworthiness.
Example use cases
Airdrop sybil filtering
“Before we distribute tokens to our airdrop list, run each Ethereum address through the Farcaster reputation check and flag anyone with a score below 40 as likely sybil — I want the band and the per-dimension reasons too.”
Gated community access control
“A user is trying to join our token-gated Discord. Their Farcaster username is 'cryptodan' — can you pull their Farcaster reputation score and let me know if they're in the 'high' band or not?”
Due diligence on a crypto contact
“I'm about to co-invest with someone whose Farcaster FID is 8152. Can you give me their reputation score out of 100, the band they fall into, and the main reasons for any deductions?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/farcaster/reputationWhen to prefer
Choose this endpoint when you need a deterministic, multi-dimensional social-reputation signal specifically for Farcaster accounts — particularly in crypto agent workflows requiring anti-sybil checks, airdrop gating, or identity provenance verification. It is preferable over generic social-score APIs when the target user is on Farcaster and on-chain wallet verification matters alongside social signals.
Side effects
- FID not found: account does not exist on Farcaster
- Username not found: unregistered or misspelled handle returns an error or null score
- Ethereum address not linked to any Farcaster FID: lookup fails with no result
- Missing required query parameter (fid, username, or address must be supplied): 400-level error
- Rate limit or payment failure via x402 protocol: 402 Payment Required
- Ambiguous input if multiple accounts share similar identifiers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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