Payments on Base + Solana
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mev.halowerk.com has 10 x402 endpoints in our catalog. Right now: 3 proceed, 7 caution. 3 passed a real paid test: we paid the listed price and got what the listing promised. Best grade: A.
Best grades first. Open an endpoint for its full history: uptime, price and payout-wallet changes, and paid-test results with signed receipts.
| Endpoint | Grade | Verdict | Uptime (7 days) | Response time | Paid test passed |
|---|---|---|---|---|---|
| /v1/amm-invariant-monitor | A | Proceed | 100% | 1,071 ms | Yes |
| /v1/concentrated-lp-range-optimizer | A | Proceed | 100% | 1,098 ms | Yes |
| /v1/builder-inclusion-analyzer | A | Proceed | 99% | 1,113 ms | Yes |
| /v1/dex-fee-switch-impact | C | Caution | 100% | 945 ms | – |
| /v1/liquidity-migration-tracker | C | Caution | 99% | 1,049 ms | – |
| /v1/lp-fee-vs-il-analyzer | C | Caution | 99% | 890 ms | – |
| /v1/mev-block-attribution | C | Caution | 98% | 909 ms | – |
| /v1/pool-authenticity-checker | C | Caution | 99% | 854 ms | – |
| /v1/sandwich-victim-detector | C | Caution | 99% | 850 ms | – |
| /v1/toxic-flow-detector | C | Caution | 99% | 867 ms | – |
3 of mev.halowerk.com's endpoints are rated Proceed: reliable in monitoring with a stable price and payout wallet, and the best ones delivered in a real paid test. Grades are per endpoint, so look up the one your agent is about to pay.
Lumière PayCheck checks every endpoint about every 30 minutes: does it answer with a valid x402 quote, is the price and payout wallet stable. Then we pay some of them for real and check the response against what the listing promised. Failures are re-tested before they count. How it works.
Yes, for free. Call check_payment (API or MCP) with the endpoint, amount and payTo from the 402 quote, and pay only if it returns allow. Check an endpoint now.