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seo.openverbs.com has 26 x402 endpoints in our catalog. Right now: 15 proceed, 11 caution. 15 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/backlink-anchors | A | Proceed | 100% | 669 ms | Yes |
| /v1/backlinks-history | A | Proceed | 100% | 649 ms | Yes |
| /v1/competitors | A | Proceed | 100% | 647 ms | Yes |
| /v1/domain-overview | A | Proceed | 100% | 653 ms | Yes |
| /v1/keyword-gap | A | Proceed | 100% | 598 ms | Yes |
| /v1/keyword-variations | A | Proceed | 100% | 606 ms | Yes |
| /v1/on-page | A | Proceed | 100% | 584 ms | Yes |
| /v1/pagespeed | A | Proceed | 100% | 571 ms | Yes |
| /v1/ranked-keywords | A | Proceed | 100% | 555 ms | Yes |
| /v1/referring-domains | A | Proceed | 100% | 566 ms | Yes |
| /v1/related-keywords | A | Proceed | 100% | 564 ms | Yes |
| /v1/relevant-pages | A | Proceed | 100% | 575 ms | Yes |
| /v1/search-intent | A | Proceed | 100% | 583 ms | Yes |
| /v1/serp-history | A | Proceed | 100% | 580 ms | Yes |
| /v1/traffic-estimate | A | Proceed | 100% | 582 ms | Yes |
| /v1/backlinks | C | Caution | 100% | 658 ms | – |
| /v1/clickstream-search-volume | C | Caution | 100% | 659 ms | – |
| /v1/historical-rank | C | Caution | 100% | 606 ms | – |
| /v1/keyword-difficulty | C | Caution | 100% | 626 ms | – |
| /v1/keyword-ideas | C | Caution | 100% | 617 ms | – |
| /v1/keyword-overview | C | Caution | 100% | 602 ms | – |
| /v1/keyword-suggestions | C | Caution | 100% | 613 ms | – |
| /v1/keyword-volume-history | C | Caution | 100% | 592 ms | – |
| /v1/page-intersection | C | Caution | 100% | 593 ms | – |
| /v1/serp-competitors | C | Caution | 100% | 561 ms | – |
| /v1/trends | C | Caution | 100% | 551 ms | – |
15 of seo.openverbs.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.