x402 Observatory

Every paid API in the public x402 directories, checked by LogicNodes: does it really answer with valid payment terms, how reliably, and how much USDC its payout address actually receives.

128,156paid endpoints listed
4,176providers
3,649 / 4,176live at last check / checked
$340,423USDC received on Base, 7 days
#ProviderScoreNowUptime 72hIncome 7dPayers 7dEndpointsFrom
2051Book chapter
preppers-paradise.com		 54.8live100%$0.0441$0.01
2052JoJ API
spotify.jojapi.net		 54.8live100%$0.0442$0.01
2053BAGS Agent API
staging.getbags.app		 54.8live100%$0.0441$0.01
2054Stock Bloc
stockbloc.ai.studio		 54.8live100%$0.0443$0.01
2055supplier-risk-api-production.up.railway.app
supplier-risk-api-production.up.railway.app		 54.8live100%$0.0442$0.01
2056thevaultreport.com
thevaultreport.com		 54.8live100%$0.0444$0.01
2057x402-dataviz-poc.theliminalguy.workers.dev
x402-dataviz-poc.theliminalguy.workers.dev		 54.8live100%$0.0441$0.01
2058x402-fuelprice-poc.theliminalguy.workers.dev
x402-fuelprice-poc.theliminalguy.workers.dev		 54.8live100%$0.0441$0.01
2059tollzone.osani-projects.workers.dev
tollzone.osani-projects.workers.dev		 54.8live100%$0.0446$0.01
2060PennyAPI x402 Seller Preflight
pennyregwatch.com		 54.8live100%$0.03747$0.001
2061URL Unwrap / Redirect Tracer
unwrap.use.x402atlas.com		 54.8live100%shared41$0.009
2062gateway.grapevine.fyi
gateway.grapevine.fyi		 54.8live100%$0.03439744$0.001
2063M2M Sentinel
api.m2msentinel.com		 54.8live100%$0.0343$0.005
2064ThaiKit
api.thaikit.dev		 54.8live100%$0.03422$0.005
2065EdgeCheck
backtest.thaikit.dev		 54.8live100%$0.0341$0.10
2066XRP Tape
earn-pulse.haiqingm58.workers.dev		 54.8live100%$0.03435$0.00
2067fetchharbor.benlab.download
fetchharbor.benlab.download		 54.8live100%$0.0343$0.005
2068Ruff Python Lint
api.stevensaavedra.com		 54.8live100%$0.0341$0.005
2069Nexari Agent Tools
x402.nexari.cloud		 54.7live100%$1.2617$0.001
2070BeliefState
beliefstate.ai		 54.7live100%$0.2432$0.02
2071api.biotechcatalystsentinel.com
api.biotechcatalystsentinel.com		 54.7live100%$0.2332$0.02
2072payload402
payload402.edgebytenet.workers.dev		 54.7live100%$0.02644$0.001
2073Singapore ACRA Company Registry
data.finery.cc		 54.7live100%$0.02542$0.005
2074ENTROPY.RIP
entropy.rip		 54.7live100%$0.02543$0.005
2075Automaton Media APIs
api.language123.net		 54.7live100%$0.02444$0.001
2076Northline ChainKit
northline-chainkit.northline-c86.workers.dev		 54.7live100%$0.02345$0.001
2077Northline Unclaimed
northline-unclaimed.northline-c86.workers.dev		 54.7live100%$0.02341$0.50
2078Northline WebKit
northline-webkit.northline-c86.workers.dev		 54.7live100%$0.02349$0.001
2079library.forgemesh.io
library.forgemesh.io		 54.7live100%$0.021411$0.003
2080ASI Agent Search Index
api.asi.xynatec.com		 54.7live100%$0.0241$0.005
2081FastPath Bitcoin API
api.nativebtc.org		 54.7live100%$0.0242$0.005
2082ukintel
api.ukintel.uk		 54.7live100%$0.0243$0.005
2083deadchannel
deadchannel.vercel.app		 54.7live100%$0.0241$0.005
2084Hosaka
hosaka-agents.vercel.app		 54.7live100%$0.0241$0.005
2085Machina URL to Markdown
mach402.dev		 54.7live100%$0.0241$0.005
2086CelerAPI
www.celerapi.com		 54.7live100%$0.0241$0.005
2087Tereno Token Metadata
www.tereno.xyz		 54.7live100%$0.0242$0.002
2088Automaton Colony
colony.automatoncolony.xyz		 54.7live100%$0.019645$0.0049
2089agent-audit
agent-audit.agent-audit.workers.dev		 54.7live100%$0.01943$0.003
2090AgentWork Web Evidence
api.agentwork.run		 54.7live100%$0.01943$0.003
2091page-read
page-read.agent-audit.workers.dev		 54.7live100%$0.01941$0.001
2092github-repo-seo-audit
x402.charliemorrison.dev		 54.7live100%$0.01943$0.002
2093x402check
x402check.dev		 54.7live100%$0.01841$0.002
2094srv1553682.hstgr.cloud
srv1553682.hstgr.cloud		 54.7live100%$0.01774543$0.001575
2095RSoft Bank
7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws		 54.7live100%$0.01747$0.001
209689-116-220-218.sslip.io
89-116-220-218.sslip.io		 54.7live100%$0.01746$0.001
2097shield.vainplex.dev
shield.vainplex.dev		 54.7live100%$0.01444$0.001
2098Agent Read Proxy
agent-read-proxy.agent-read-proxy.workers.dev		 54.7live100%$0.01441$0.002
2099apiwitchcraft.duckdns.org
apiwitchcraft.duckdns.org		 54.7live100%$0.01241$0.002
2100r3l4y58.bithash.cc
r3l4y58.bithash.cc		 54.7live100%$0.0142$0.001
← previous4,176 providersnext →
For agents: call x402_service_search over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/x402_service_search {"query":"weather"} to get the best live endpoint with an example input. For sellers: claim your listing, add the badge, or get alerts when your API stops answering (x402_monitor_create, $5 for 30 days). JSON: /v1/observatory/providers.

Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. Directories read 22 h ago. LogicNodes does not run these services or take a cut.