token-clearance-check ($0.06)

Trading agents want one answer before they touch a token: what do the safety checks say right now? token-clearance-check runs token-honeypot, token-risk-score, and contract-source-verified in parallel on EVM chains (add lp_token_address and it checks the LP lock too), or solana-token-safety for Solana mints. Back comes a normalized verdict list: each check marked pass, flag, or unavailable, with the raw detail attached.

And the result is signed. Every response carries an Ed25519 attestation over the payload hash, verifiable against the key at /.well-known/x402-signing-key and tied to our ERC-8004 identity (agentId 47167 on Base). The agent that paid for the check can prove later exactly what it was told, and by whom.

Data only. The response reports what on-chain checks found. It never says buy, sell, or safe-to-proceed.

x-topic-pulse ($0.05)

X data is the biggest-selling category on x402, and the workflow agents actually run is search plus sentiment plus who's driving the conversation. x-topic-pulse does the three in one call: recent tweets for a topic, aggregate sentiment, and top_voices ranked by engagement. One settlement instead of three.

The signing key

/.well-known/x402-signing-key serves the Ed25519 public key (SPKI, base64) with the key id and verification note. Verdict-style endpoints embed an attestation object: the SHA-256 of the payload, the signature, and where to fetch the key. More endpoints will pick this up; the key is the same one across the portfolio, so verify once and cache it.