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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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4,150 results- LLocus x402 ServicesOther services
Locus public pay-per-use API
Basebrowser-use.x402.paywithlocus.comfrom $0.031 endpoint - BBotsRatedData & research
BotsRated (beta): full measurement history for one seller host: every receipt with timestamp, status, latency, hashes, signatures and tx links. Free sample: /v1/sample/report. First 10 calls per client per UTC day are free. Terms: https://botsrated.com/terms
Basebotsrated.comfrom $0.0021 endpoint
DAP BellwetherMarkets & financeSearch publications from financial regulators in Canada, the US, the UK and the EU.
Basebellwether.dap.solutionsfrom $0.011 endpoint- Bbau.halowerk.comOther services
Prüft am Objekt artikel den Befund vorhandene Meta-Beschreibung.
Basebau.halowerk.comfrom $0.0011 endpoint - Bbasehelper.funOther services
No description yet.
Basebasehelper.funfrom $0.051 endpoint - Bbase-reads-api.rafliyaputra.deno.netCrypto & DeFi
Base mainnet head: latest block number, block age in seconds, base fee and gas price in gwei. Use it to check the chain is advancing and to estimate fees before sending a transaction. One small JSON read instead of several raw RPC calls and unit conversions.
Basebase-reads-api.rafliyaputra.deno.netfrom $0.0011 endpoint - BBase PulseCrypto & DeFi
Run before sending ETH or USDC or paying gas, to confirm the wallet really has enough. Never trust a balance remembered from earlier in a chat. Reads a wallet's ETH and native USDC balance on Base directly from the chain, at one block.
Basebase-pulse-1021990235790.us-central1.run.appfrom $0.012 endpoints - Aaurelius-node-01.onrender.comSocial & people
Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix: structural steel, industrial copper/aluminum, OCTG casing, oilfield supply, piping, aggregates, concrete & green energy infrastructure. Includes EIA fuel rack benchmarks & spot hotshot freight rates. Returns JSON schema with stock levels, lat/lng, lead tim
Baseaurelius-node-01.onrender.comfrom $0.051 endpoint - AAsia PulseCrypto & DeFi
Asia-session snapshot: kimchi premium for 8 coins, BTC and ETH funding, BTC regime classification, US Treasury 5y/10y/20y and 2s10s, Fed dollar indexes, Asian FX, US crypto regulation filings, and events with results.
X LayerBaseasia-pulse.comfrom $0.031 endpoint
REP Wallet ReputationSocial & peoplePaid MCP endpoint — POST a JSON-RPC tools/call. Tools: get_content / refresh_content (public profile data: github, twitter, linkedin) and the rep_* wallet-reputation tools (rep_rank, rep_rank_batch, rep_achievements, rep_persona_match, rep_profile_report). Flat USD prices per call, quoted in the 402.
Baseapp.r3p.xyzfrom $0.031 endpoint- Xx402 PassportOther services
Paid x402 passport endpoint
Baseapi.x402passport.xyzfrom $0.051 endpoint - Xx402 Intelligence APICrypto & DeFi
x402 market intelligence with current catalog-attributed USDC flow, address-level demand signals and separately labeled value-matched history. The headline covers Base only (market.universeChains); the multi-chain picture ships alongside it as ecosystem, split into an RPC-proven floor and an indexed upper bound that are not additive (notASum). Attribution is not exclusive protocol-intent proof.
Baseapi.x402intel.ukfrom $0.051 endpoint - WWalletTriageCrypto & DeFi
WalletTriage — real-time wallet risk check: dangerous ERC20 approvals cross-referenced with a live exploit threat feed. Returns risk_score (0-100), risk_level and actionable findings.
Baseapi.wallettriage.comfrom $0.011 endpoint - QQUIZ ABOUT ANYTHINGOther services
I can quiz about anythinng
Baseapi.useatelier.aifrom $0.011 endpoint - Ttokenplans.devCrypto & DeFi
Full JSON catalog of verified AI coding-subscription plans across 31 providers (Claude, OpenAI, Cursor, Gemini, and more). Each record: monthly price and cadence, included models, usage ceilings and rate-limit windows, coding-tool lock-in, and pricing provenance with lastChecked dates. Use it to pick the right plan for an agent workload or to compare providers.
Baseapi.tokenplans.devfrom $0.101 endpoint - Aapi.relayshield.netCrypto & DeFi
Scan a URL for phishing or malware using heuristic signals (Google Safe Browsing, RDAP domain age, known IOC corpus) plus VirusTotal multi-engine analysis. Returns an async analysis ID to poll. Call before an agent clicks, fetches, or shares a link from an untrusted source.
BaseSolanaapi.relayshield.netfrom $0.053 endpoints - NNFL Preseason RankingsOther services
No description yet.
Baseapi.regressionincoming.fyifrom $0.101 endpoint - Aapi.quantoracle.devOther services
QuantOracle: /v1/risk/full-analysis
BaseSolanaapi.quantoracle.devfrom $0.041 endpoint - OOrionCMD ChecksCrypto & DeFi
OrionCMD Checks: Prepaid domain threat watch: up to 25 domains for 30 days, webhook alerts. Pay once; each domain is re-checked about once a day for 30 days. You get an HMAC-signed JSON POST at your https webhook_url (event watch.changed) when a domain or its IPv4 appears in (or leaves) ThreatCluster's high-confidence IOC feed, when a new ransomware leak-site claim names it, when its A/NS/MX recor
Baseapi.orioncmd.comfrom $0.0112 endpoints - Aapi.northeastdealintel.comOther services
Owner name, years held, aging signal from 100K+ deed records
Baseapi.northeastdealintel.comfrom $0.051 endpoint - Aapi.mydev-tools.techOther services
Next-best habit recommendations (USDC on Base).
Baseapi.mydev-tools.techfrom $0.031 endpoint - Aapi.melvea.comSocial & people
Structured varietal data and verifiable research provenance for 150+ honey varieties, including the obscure long tail foundation models get wrong. Every compositional datum resolves to a real, published source (DOI/PMID). Per variety: color grade (USDA Pfund band with measured or estimated source), intensity, flavor profile, texture, use cases, best-for pairing tags, primary and secondary countrie
Baseapi.melvea.comfrom $0.052 endpoints - MMail Security ToolsDeveloper tools
Mail Security Tools API: Prepaid email setup watch: up to 25 domains for 30 days, webhook on change. Pay once, then each domain's SPF, DMARC, DKIM (common selectors), MX and score are re-checked about once a day for 30 days. When something changes or breaks you get an HMAC-signed JSON POST at your https webhook_url (event watch.changed, kind changed|broke, before/after). A watch.created POST is se
Baseapi.mailsecuritytools.comfrom $0.016 endpoints
MACH BaseCrypto & DeFiVerify an onchain payment or investigate a failed Base transaction in one call with transaction, receipt, success status, confirmations, gas and fee context.
Baseapi.mach.galleryfrom $0.0052 endpoints- Aapi.ishtar.numetal.xyzAI & agents
Ask Ishtar — pay-per-answer AI dating & relationship coaching for agents. POST a question, get one candid, chaperoned coaching answer.
BaseSolanaapi.ishtar.numetal.xyzfrom $0.101 endpoint - Aapi.getsly.aiAI & agents
HTTPBin Test Echo - a Sly-published x402 service running on Sly's gateway (api.getsly.ai). Used to validate the publish + gateway flow end-to-end. Powered by Sly (https://getsly.ai). Buyer agents call this URL with x402 payment and get a JSON slideshow back. Sly Treasury account, Demo Fintech tenant, demo/test slug.
Baseapi.getsly.aifrom $0.0011 endpoint - FFree Small Biz ToolsMarkets & finance
Free Small Biz Tools API: Good / better / best quote pack with terms and a cover note. From your line items: three priced options, deposit, validity date, standard terms and a short cover note. Bad input 400, never charged.
Baseapi.freesmallbiztools.comfrom $0.013 endpoints - DDeepent Research Agent APIAI & agents
Deepent Research — refusal-free LLM inference (per-request)
Baseapi.deepentresearch.comfrom $0.051 endpoint - DDataSieveCrypto & DeFi
Something you cannot do while your agent is dead: keep watching. One paid call buys 7 days of it — on-chain on Base (wallet activity, whale transfers, price crossings, new pools), a dead-man switch that fires when YOUR agent goes silent, a cron/schedule webhook, or a url-change web monitor. Every event carries a signed Ed25519 receipt proving a third party observed it then — which your own logs ca
Baseapi.datasieve.xyzfrom $0.101 endpoint - Aapi.cybersecurity-japan.comCrypto & DeFi
Check a public website's security hygiene before your agent links to it, recommends it, or sends data to it. One URL in, deterministic JSON out: HTTPS and redirect chain, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, security.txt, robots.txt, sitemap.xml, plus plain-language notes. Private, localhost and raw-IP targets are rejected; error responses are no
Baseapi.cybersecurity-japan.comfrom $0.051 endpoint
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.