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 12, 2026 UTC.
Researched listings4,344records held
In this view4,344filters applied
Answering2,130answered at their own latest call
Payment terms1,559listings declaring terms
Published grades0NR below the floor
Latest sweepAug 12, 2026 UTC2,752 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.
4,344 researched listings match this view. Open any listing to inspect its scorecard and evidence ledger. 4 distinct evidence sets appear across these 50 rows. Research records here were collected between Aug 11, 2026 UTC and Aug 12, 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. |
|---|---|---|---|---|---|---|---|
| web-production-2d1051.up.railway.app host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| visionex.x402tools.xyz host:visionex. |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| TxGuard — Deterministic Base transaction and x402 payment preflight for agents, paid per call. host:txguard. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| tts-service-production-e8a7.up.railway.app host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| TrustFetch — Prompt-injection scanning & safe fetching for AI agents host:trustfetch. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| Trust402 - x402 Radar host:trust402. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| Trust402 - x402 Radar host:trust402. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| TravelCheck API host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 12, 2026 UTC |
| trace.sociologic.ai host:trace. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| TopPot — Your FPL skills. Real prizes. host:toppot.io |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| toolvend.dev host:toolvend. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| tools.miniframe.com.br host:tools. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| tollbooth-production-3845.up.railway.app host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| time.24klabs.ai host:time. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| The Idea Machine host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| the-stables-blackbird-api.vercel.app host: |
x402 | Silent | NR | — | liveness · payment terms | Terms declared | Aug 11, 2026 UTC |
| testing-features host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| Talkshi — The Agentic Marketplace host:talkshi.com |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| structdoc-api.hp-vladic.workers.dev host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| Trading Strategy Data — Backtestable crypto trend signals for AI agents host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| Stack Billing — The Invoicing App for People Who Hate Invoicing host:stackbill. |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| StableStudio host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| StableStudio host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| People Data Labs API host: |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| StableJobs host:stablejobs. |
x402 | Silent | NR | — | liveness · payment terms · domain age | Terms declared | Aug 11, 2026 UTC |
| Cloudflare API host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| StableEstate host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| StableCrypto host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| StableBrowser host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt | Terms declared | Aug 11, 2026 UTC |
| Apify API - pay-per-call actors host: |
x402 | Silent | NR | — | liveness · payment terms · llms.txt · domain age | Terms declared | Aug 11, 2026 UTC |
| 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 |
| 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 |
web-production-2d1051.up.railway.apphost:web-production-2d1051.up.railway.app
NRvisionex.x402tools.xyzhost:visionex.x402tools.xyz
NRTxGuard — Deterministic Base transaction and x402 payment preflight for agents, paid per call.host:txguard.schemasure.com
NRtts-service-production-e8a7.up.railway.apphost:tts-service-production-e8a7.up.railway.app
NRTrustFetch — Prompt-injection scanning & safe fetching for AI agentshost:trustfetch.duckdns.org
NRTrust402 - x402 Radarhost:trust402.vercel.app
NRTrust402 - x402 Radarhost:trust402.aztecbeacon.uk
NRTravelCheck APIhost:travelcheck-x402.fly.dev
NRtrace.sociologic.aihost:trace.sociologic.ai
NRTopPot — Your FPL skills. Real prizes.host:toppot.io
NRtoolvend.devhost:toolvend.dev
NRtools.miniframe.com.brhost:tools.miniframe.com.br
NRtollbooth-production-3845.up.railway.apphost:tollbooth-production-3845.up.railway.app
NRtime.24klabs.aihost:time.24klabs.ai
NRThe Idea Machinehost:theideamachine.dev
NRthe-stables-blackbird-api.vercel.apphost:the-stables-blackbird-api.vercel.app
NRtesting-featureshost:testing-features-2025.myshopify.com
NRTalkshi — The Agentic Marketplacehost:talkshi.com
NRstructdoc-api.hp-vladic.workers.devhost:structdoc-api.hp-vladic.workers.dev
NRTrading Strategy Data — Backtestable crypto trend signals for AI agentshost:strategysignals.duckdns.org
NRStack Billing — The Invoicing App for People Who Hate Invoicinghost:stackbill.app
NRStableStudiohost:stablestudio.io
NRStableStudiohost:stablestudio.dev
NRPeople Data Labs APIhost:stablepeopledata.dev
NRStableJobshost:stablejobs.dev
NRCloudflare APIhost:stableflare.dev
NRStableEstatehost:stableestate.dev
NRStableCryptohost:stablecrypto.dev
NRStableBrowserhost:stablebrowser.vercel.app
NRApify API - pay-per-call actorshost:stableapify.dev
NRPeople 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
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
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.