Facts about the check-before-pay space for x402 and MCP: what each service says it offers, the payment rails it lists, and its price as published — each with a date and a source link.
Listed the same way for every service, BotsRated included. Not a rating, ranking, or review.
| Service | Offers (as published) | Rails | Price (as published) | as of | First seen | Changed | Source |
|---|---|---|---|---|---|---|---|
| Agent Embassy Published Request update | Lists paid tools with signed outcome receipts, as published. | x402 + MCP | Check ping $0.001; "trust preflight" $0.25 and "trust report" $0.25 (their product names); full list on pricing.md | 2026-11-04 | No data yet | — | aemb.pro |
| Attest Published Request update | Publishes a letter report on endpoints before pay, as their product output. | x402 + MCP | Not published | 2026-11-04 | No data yet | — | attestagent.org |
| Blackwall Published Request update | Publishes GO, HOLD, or STOP output as their product, as published. | x402 + MCP | free under $10 at risk; "about a cent" demo call (no rate card) | 2026-11-04 | No data yet | — | x402.blackwalltier.com |
| BotsRated Published Request update | Free preflight at $0.001 a check, plus Guard and a fleet change pulse, as published. | x402 + MCP | Free preflight $0.001 a check; Pro $19/mo; Data Pro $199 / 30 days in USDC | 2026-11-04 | No data yet | — | botsrated.com |
| Fizzl / x402 Doctor Published Request update | Calls paid x402 endpoints it finds and lists a free prompt-injection check, as published. | x402 | $0.001 (paid services); free 10 checks/hour (injection check) | 2026-11-04 | No data yet | — | fizzl.eu |
| Lumi Published Request update | Publishes allow, warn, or block style output as their product, as published. | x402 | Pay check free; paid verdict routes $0.005–$0.02; Watch free $0; $5 per endpoint per 30 days | 2026-11-04 | No data yet | 2026-11-04 | lumitrades.io |
| MEO Published Request update | Lists a read-only Preflight pilot for machines. x402 is not stated on the page. | MCP | Not published | 2026-11-04 | No data yet | — | machineeconomyobservatory.com |
| paidfor.dev Published Request update | Lists a free x402 seller check and mail when a recorded result changes, as published. | x402 + MCP | Free, no account, no key | 2026-11-04 | No data yet | — | paidfor.dev |
| probe402 Published Request update | Publishes a free per-endpoint report as their product output. | x402 + MCP | "Free grade" (their term); paid 30-day history $0.005 per call | 2026-11-04 | No data yet | 2026-10-08 | probe402.com |
| Proof Rail Published Request update | Lists signed records and an agent payee check for a current public EVM wallet record, as published. | x402 + MCP | Agent payee check 0.01 USDC on Base; first standard record free | 2026-11-04 | No data yet | — | proofrail.me |
| PulseFeed Published Request update | Lists a check of liveness before pay, as published. | x402 + MCP | free `/verify` endpoint (their route name); $0.004; $0.01+ | 2026-11-04 | No data yet | — | pulsefeed.dev |
| Settled Published Request update | Publishes allow, warn, or block style output as their product, as published. | x402 | Free 25 checks/day (300 with free key); paid check $0.002; preflight $0.005; day pass $0.05 | 2026-11-04 | No data yet | — | settled.tools |
| Settlens Published Request update | Lists an MCP preflight that returns `pay`, `review`, or `do_not_pay` (their output values) against a spending policy, as published. | x402 + MCP | Not published | 2026-11-04 | No data yet | — | settlens.com |
| Tanod Published Request update | Publishes route reports as their product output, and lists a check before send, as published. | x402 + MCP | txpeek USD 0.005 per check; small free daily allowance | 2026-11-04 | No data yet | 2026-10-22 | tanod.dev |
| Toll Published Request update | Lists an x402 payee check. Settlement is stated as USDG on Robinhood Chain, as published. | x402 + MCP | Free tier (coins/day, more with $TOLL holdings); pay per check over x402 0.01–0.05 USDG | 2026-11-04 | No data yet | — | t0ll.xyz |
| UseTested / Market402 (Market402) Published Request update | Publishes a 0–100 product figure as their product output. | x402 | Not published | 2026-11-04 | No data yet | 2026-11-04 | market402.com |
| UseTested / Market402 (UseTested) Published Request update | Spends on services and publishes write-ups anchored to on-chain payment proofs, as published. | x402 + MCP | Free to read; "top-10" list $0.05 (their term); provider self-report $0.005; re-test $1 fee + 20 probes | 2026-11-04 | No data yet | — | usetested.com |
| vet402 Published Request update | Buys from x402 APIs and publishes the result of each purchase, as published. | x402 | Free $0 (1,000); Pro $49/mo (50,000); Scale $199/mo (500,000) | 2026-11-04 | No data yet | — | vet402.com |
| x402-trust Published Request update | Publishes endpoint history and a highlighted list as their product, and lists an MCP server, as published. | x402 + MCP | "Trust score" (their term) $0.005; endpoint history $0.02; alternatives $0.005; watch ~$0.20; bulk $0.045–$0.50 | 2026-11-04 | No data yet | — | x402-trust.com |
| x402check Published Request update | Lists a preflight of the live 402 response and history, as published. | x402 + MCP | $0.01 / tool · 1 free regular / wallet · deep $0.05 · watch $5/30d | 2026-11-04 | No data yet | — | x402check.dev |
| x402station Published Request update | Lists a pre-flight policy output, a provider mark, and a watch, as published. | x402 + MCP | $0.001 per check; badge $1 / 30 days; watch $0.01 / 30 days; report $0.001 | 2026-11-04 | No data yet | — | x402station.io |
| XRPreflight Published Request update | Lists XRPL payment checks, as published. | x402 | Preflight 1000 drops (0.001 XRP); other checks 500 drops | 2026-11-04 | No data yet | — | xrpreflight.com |
No changes yet.
Peer entries are their published claims, quoted with a date and a source link. We do not probe or monitor them unless a row says Measured.
Changes are what we recorded from public sources when we last looked (as of the date shown), not continuous monitoring.
Something wrong or out of date? Request an update