Public infrastructure registry
Search what agents depend on.
Every researched MCP server and x402 endpoint, with its latest observed state, tool surface, payment evidence, and rating status. Data current through Aug 13, 2026 UTC.
Researched listings5,359records held
In this view5,359filters applied
Answering2,647answered at their own latest call
Payment terms1,592listings declaring terms
Published grades0NR below the floor
Latest sweepAug 13, 2026 UTC3,788 listings re-called that day
Sorted by Evidence held, descending · every listing on this page shares one “Evidence held” value, so direction only reverses the identifier tiebreak
Registry results.
5,359 researched listings match this view. Open any listing to inspect its scorecard and evidence ledger. 4 distinct evidence sets appear across these 50 rows. Every research record here was collected Aug 11, 2026 UTC.
| ListingSort by Listing, ascending. | Type | StatusSort by Status, descending. | Rating | ToolsSort by Tools, descending. | Evidence | PaymentsSort by Payments, descending. | Last observedSort by Last observed, descending. |
|---|---|---|---|---|---|---|---|
| People Data Labs API host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| People Data Labs API host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| StableMedia host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableMedia host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableMedia host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableMedia host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableJobs host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| StableJobs host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| StableJobs host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| StableBrowser host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableBrowser host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableBrowser host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableBrowser host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| SQLPermit — Deterministic PostgreSQL statement policy checks with a signed, statement-bound execution permit. host:sqlpermit. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| specdelta-kl4hfo6j2q-as.a.run.app host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| Skim™ — The Canonical x402 Reader™ host:skim402.com |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| AI Advisory & Agentic Research Harness | SentEdge AI host:sentedge.ai |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| sendquotenow.com host: |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| scry · the store host:scry. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| ScoreStatus — live sports in your status line host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| SchemaSure — Turn messy text, HTML, or document images into guaranteed schema-valid JSON, or pay nothing. host:schemasure. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| sat.ipintel.ai host:sat. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| Sales Intel API - pay-per-call company enrichment host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| Free OSHA injury & inspection data by company · Safety Incidents host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| saferoute-x402-production.up.railway.app host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| SafeFetch — Retrieve a hostile web page safely: clean Markdown, citation anchors, and decoded evidence of what the page was trying to say to your agent. host:safefetch. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| rpc.nodeflare.app host:rpc. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| Replenum - Agent Reputation Infrastructure host:replenum. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| Research Verification APIs — Pay Per Request host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| quantum-artificer.surewhynot.app host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| qr.x402tools.xyz host:qr. |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| PubMed Trends — x402 host:pubmed. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| AproxPay — The proxy built for AI agents host:proxy. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| prospex.x402tools.xyz host:prospex. |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| Property Risk Passport API | Address due diligence for agents host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| projectx402-production.up.railway.app host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| project-formatter-production.up.railway.app host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| prance-mounting-watch.ngrok-free.dev host: |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| perplexity.x402.paywithlocus.com host:perplexity. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| People’s Court — Private dispute resolution host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| paulgraham.persona.energy host:paulgraham. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| orisha-data.com host: |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| openrouter.x402.stage.paywithlocus.com host:openrouter. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| Smarter Way x402 Skills host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| Omni Terminal | Hyperliquid Dashboard, AI News & IBKR host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| obol-x402.fly.dev host:obol-x402. |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| nad.payflowagent.net host:nad. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| mru-oracle.com host:mru-oracle. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| mistral.x402.stage.paywithlocus.com host:mistral. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| MSHA Fatality Tracker, Citations, Operator Lookup | Mining Incidents host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
People Data Labs APIhost:stable-people-data-git-pdl-signoz-usage-alarms-merit-systems.vercel.app
NRPeople Data Labs APIhost:stable-people-data-git-ben-test-agentcash-dfcfa3-merit-systems.vercel.app
NRStableMediahost:stable-media-git-ben-upgrade-agentcash-rou-02e093-merit-systems.vercel.app
NRStableMediahost:stable-media-git-ben-test-agentcash-router-pr-241-merit-systems.vercel.app
NRStableMediahost:stable-media-git-ben-test-agentcash-router-pr-227-merit-systems.vercel.app
NRStableMediahost:stable-media-git-ben-test-agentcash-router-pr-212-merit-systems.vercel.app
NRStableJobshost:stable-jobs-git-ben-test-agentcash-router-pr-241-merit-systems.vercel.app
NRStableJobshost:stable-jobs-git-ben-test-agentcash-router-pr-227-merit-systems.vercel.app
NRStableJobshost:stable-jobs-git-ben-test-agentcash-router-pr-212-merit-systems.vercel.app
NRStableBrowserhost:stable-browser-git-stablebrowser-public-live-view-merit-systems.vercel.app
NRStableBrowserhost:stable-browser-git-shafu-stablebrowser-han-020dc6-merit-systems.vercel.app
NRStableBrowserhost:stable-browser-git-shafu-stablebrowser-410-220925-merit-systems.vercel.app
NRStableBrowserhost:stable-browser-git-ben-test-agentcash-rout-1850e3-merit-systems.vercel.app
NRSQLPermit — Deterministic PostgreSQL statement policy checks with a signed, statement-bound execution permit.host:sqlpermit.schemasure.com
NRspecdelta-kl4hfo6j2q-as.a.run.apphost:specdelta-kl4hfo6j2q-as.a.run.app
NRSkim™ — The Canonical x402 Reader™host:skim402.com
NRAI Advisory & Agentic Research Harness | SentEdge AIhost:sentedge.ai
NRsendquotenow.comhost:sendquotenow.com
NRscry · the storehost:scry.moreright.xyz
NRScoreStatus — live sports in your status linehost:scorestatus.dev
NRSchemaSure — Turn messy text, HTML, or document images into guaranteed schema-valid JSON, or pay nothing.host:schemasure.com
NRsat.ipintel.aihost:sat.ipintel.ai
NRSales Intel API - pay-per-call company enrichmenthost:sales-intel-api-production-c525.up.railway.app
NRFree OSHA injury & inspection data by company · Safety Incidentshost:safetyincidents.org
NRsaferoute-x402-production.up.railway.apphost:saferoute-x402-production.up.railway.app
NRSafeFetch — Retrieve a hostile web page safely: clean Markdown, citation anchors, and decoded evidence of what the page was trying to say to your agent.host:safefetch.schemasure.com
NRrpc.nodeflare.apphost:rpc.nodeflare.app
NRReplenum - Agent Reputation Infrastructurehost:replenum.com
NRResearch Verification APIs — Pay Per Requesthost:red-breeze-8b8c.keenanbooker83.workers.dev
NRquantum-artificer.surewhynot.apphost:quantum-artificer.surewhynot.app
NRqr.x402tools.xyzhost:qr.x402tools.xyz
NRPubMed Trends — x402host:pubmed.sekgen.xyz
NRAproxPay — The proxy built for AI agentshost:proxy.aproxpay.com
NRprospex.x402tools.xyzhost:prospex.x402tools.xyz
NRProperty Risk Passport API | Address due diligence for agentshost:property-risk-passport-api.lifebite-app.workers.dev
NRprojectx402-production.up.railway.apphost:projectx402-production.up.railway.app
NRproject-formatter-production.up.railway.apphost:project-formatter-production.up.railway.app
NRprance-mounting-watch.ngrok-free.devhost:prance-mounting-watch.ngrok-free.dev
NRperplexity.x402.paywithlocus.comhost:perplexity.x402.paywithlocus.com
NRPeople’s Court — Private dispute resolutionhost:peoplescourt.ai
NRpaulgraham.persona.energyhost:paulgraham.persona.energy
NRorisha-data.comhost:orisha-data.com
NRopenrouter.x402.stage.paywithlocus.comhost:openrouter.x402.stage.paywithlocus.com
NRSmarter Way x402 Skillshost:openclaw-customizations-production.up.railway.app
NROmni Terminal | Hyperliquid Dashboard, AI News & IBKRhost:omniterminal.app
NRobol-x402.fly.devhost:obol-x402.fly.dev
NRnad.payflowagent.nethost:nad.payflowagent.net
NRmru-oracle.comhost:mru-oracle.com
NRmistral.x402.stage.paywithlocus.comhost:mistral.x402.stage.paywithlocus.com
NRMSHA Fatality Tracker, Citations, Operator Lookup | Mining Incidentshost:miningincidents.org
NRHow to read this registry. Status is what happened the last time that listing was called, and “Last observed” is the date of that call — the sweep is rolling, so those dates differ between rows. “Never probed” means no liveness observation has ever been recorded for the listing. NR means the evidence floor has not been met; it is not a low grade. Payment flow is observed inbound USDC within a disclosed Base block range, not revenue or proof of ownership.