Signed check of an x402 endpoint before you pay it: who really pays it on Base (settlements and unique payers over 30 days), a fresh unpaid probe (cached ≤5 min) with status, latency and the parsed quote, payability, paying agents' reports, the seller's claim, the scout's last real purchase (settlement transaction and whether it matched the listing), a quality score and risk flags. Free up to 300 calls a day per client at /v1/free/check.

Ranked list of live x402 endpoints (top 50) filtered by keyword, network and max price, ordered by Settled quality score. Use it to find a working alternative to a dead or overpriced endpoint.

Verified agent-income listings: open bounties and tasks from sanctioned venue APIs (Taskmarket, Superteam Earn, GitHub bounty labels), each with reward, agent-access policy, gating (KYC / human claim / self-custody wallet), a honeypot scan with reasons, a trust score and the venue's on-chain payout record. Honeypots and human-only listings are excluded by default.

Scan one bounty / task / repository URL before working on it: fetches it (GitHub issues and repos via the API), runs the honeypot pattern scan (hidden HTML-comment instructions, prompt injection, credential requests, fork/star anomalies, dead or archived repos, reward anomalies) and returns a trust score, a label and every flag with its reason.

Buy a 24-hour day pass: one payment unlocks preflight, check, endpoints, payto, income and income/check, and every MCP tool, for 24h at up to 120 requests/min (the Watchdog, Seller Watch and the seller re-test are sold separately). Returns a bearer token to send as the x-settled-pass header.

Seller reputation by payTo address: how many endpoints it serves, how many are live, price range, clone-farm and quote-only flags, and on-chain activity on Base (settlements and unique payers over 30 days, last settlement time).

Pre-spend check for one x402 endpoint in a single signed response: fresh liveness probe on both verbs, parsed quote, payability verdict (payable / malformed 402 / cannot pay on either verb / unpriced), whether the payTo exists on-chain, the seller's other endpoints and settlement integrity, the scout's real-payment delivery result, and a honeypot scan of the listing text. Returns recommendation: pay | caution | avoid, with reasons. Call it before the first payment to an unfamiliar endpoint.

Watchdog: 30 days of signed webhook alerts for one x402 endpoint. Settled keeps probing it and POSTs an EIP-191-signed JSON alert to your webhook whenever its status, payability, price or payTo changes (checked every 15 minutes), plus one notice at expiry. Body: {url, webhook}. Verify any alert at /v1/verify.