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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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4,372 results- BbasefeedOther services
x402 settlement test
Basebasefeed-io.fly.devfrom $0.0011 endpoint - AAurifex Macro Open DataMarkets & finance
Aurifex Macro Open Data — taux 10 ans US et indice dollar large Fed (open data)
Baseaurifex.kder-ai.comfrom $0.011 endpoint - Aarn-x402-payguard-payment-security.rajdeep-dutta-in.workers.devAI & agents
Agent Reliability Network: ARN x402 PayGuard provides x402 payment security for autonomous AI agents. Check the seller before you pay with payment preflight and payment-challenge validation. Returns ALLOW, CAUTION, or BLOCK.
BaseSolanaarn-x402-payguard-payment-security.rajdeep-dutta-in.workers.devfrom $0.0011 endpoint - Aapp-446.hdgregory.comSearch & web
Scrapes a URL and returns structured JSON: title, meta tags, headings, paragraphs, links, tables, extracted emails and phone numbers, and word counts. Accepts a single 'url' or a list of 'urls' for batch scraping. Includes retry logic and anti-detection headers.
Baseapp-446.hdgregory.comfrom $0.0051 endpoint - Aapi.xona-agent.comImages, audio & video
ElevenLabs text-to-speech: convert text to speech (MP3) (Base Mainnet).
SolanaArbitrumEVM chain 1187947933+1api.xona-agent.comfrom $0.001420 endpoints - Aapi.kgninja.devOther services
KG-NINJA URL Summary
Baseapi.kgninja.devfrom $0.012 endpoints - GadgetHumans APISocial & people
Is this Base token safe to buy, or a honeypot, rug pull or scam? Send a Base (chainID 8453) ERC-20 contract address and get a pre-trade safety verdict before you swap, snipe, route or approve it: honeypot simulation (can you actually sell it?), buy tax and sell tax, mint and owner privileges, blacklist and pause functions, verified source, holder concentration, live liquidity and 24h volume, plus
BaseSolanaapi.gadgethumans.comfrom $0.001204 endpoints - CChat Completion (basic)Crypto & DeFi
LLM completion per call, no account and no API key: POST a prompt (or a messages array) and get the model answer as JSON. Hard caps disclosed in every response (6,000 UTF-8 bytes in, 750 tokens out on this tier). Fixed price per call, signed receipt included so the answer stays auditable. Larger tier at /x402/chat-plus.
BaseArbitrumPolygon+1api.eucompliance.toolsfrom $0.00123 endpoints
Agent PaywireSearch & webCheck whether a public URL exposes L402, x402, or MPP discovery. Send url as a query parameter. POST JSON {"url":"https://..."} is the same check. Two free reports per client per 24 hours, then 0.05 USDC. A request without url is the payment challenge and does not use a free report.
Baseapi.agentpaywire.comfrom $0.018 endpoints
VimmerseImages, audio & videoGenerates one to four images from a text prompt with the chosen model, and returns the asset with the output URLs in results. AutoI picks a model automatically. Credits depend on the model tier and the quantity.
Baseagents.vimmerse.netfrom $0.124 endpoints- Aagents.thirdmade.netSearch & web
Scrape any public web page and get clean structured JSON (title, text, meta). Pay per call with USDC on Base.
Baseagents.thirdmade.netfrom $0.011 endpoint - Aagent.agentflare.orgAI & agents
No description yet.
BaseSolanaagent.agentflare.orgfrom $0.0053 endpoints - Aagent-contract-proof.mattskowronis.workers.devAI & agents
Compare an agent's advertised contract with its live x402 challenge and return deterministic proof.
Baseagent-contract-proof.mattskowronis.workers.devfrom $0.011 endpoint
web-extractSearch & webExtrae el contenido de una URL y lo devuelve limpio en Markdown/HTML para el contexto de un LLM.
BasePolygonxl402.agentsats.orgfrom $0.021 endpoint- Xx402station.ioOther services
Preflight x402 scam check: endpoint risk before you pay — decoy / zombie / price-trap / never-paid? Trust verdict in ~200ms before PAYMENT-SIGNATURE.
Basex402station.iofrom $0.0011 endpoint - Xx402endpoint-924155002144.us-west2.run.appOther services
Current path for validation test
Basex402endpoint-924155002144.us-west2.run.appfrom $0.011 endpoint - Xx402.n9t2.comCrypto & DeFi
N9T2 Bridge paid service: base-xrpl-trading/book_offers
Basex402.n9t2.comfrom $0.00251 endpoint - Xx402 Transcription APIImages, audio & video
Pay-per-use AI audio transcription API. Transcribe short MP3 and WAV audio files using Whisper Large V3 Turbo. No account or API key required. Pay with USDC on Base. 0.02 USDC per request. Maximum 120 seconds and 2 MB; MP3 and uncompressed PCM WAV only. Returns JSON: text, detected language, duration and timestamped segments. Charged only when a transcript is returned.
Basex402-transcribe-mainnet.hustlescan-media.workers.devfrom $0.021 endpoint - Xx402-micro-tollgate.onrender.comOther services
Fetch a public http(s) URL and return Markdown. Pay-per-call via x402 USDC.
Basex402-micro-tollgate.onrender.comfrom $0.0011 endpoint - Xx402-market.kore-app.workers.devCrypto & DeFi
Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.
Basex402-market.kore-app.workers.devfrom $0.011 endpoint - BBTC Ecosystem RadarCrypto & DeFi
Bitcoin L1 unverified new-protocol candidates only (candidate_protocols full array: evidence_url, tx_count_24h, growth_pct_7d, signal_source). Not in /latest. $0.50. Not investment advice.
BNB ChainBaseSolanax402-btc-radar.jinli-x402.workers.devfrom $0.054 endpoints - WWikidata Entity SearchSocial & people
Wikidata entity search — find the Wikidata item for a person, organisation, place, work or concept by name or alias, in any language, with id, label, description and which term matched; or find a property by name. Use to get the Q-id before asking for an entity's facts, identifiers or links.
BasePolygonArbitrum+1wikidata.use.x402atlas.comfrom $0.011 endpoint - WWattImages, audio & video
Use when you need image embeddings or text embeddings in one 2048-dimension space for retrieval, RAG, semantic search, clustering, or dedup (Qwen3-VL-Embedding-2B, OpenAI-compatible). Batch up to 256 items per call, served 32 at a time. An x402 call is $0.002 when the request includes images, $0.001 for text-only. USDC on Base. 400 is a bad body, 413 is over 48 MiB, 429 means busy (Retry-After).
Basewatt.area21.iofrom $0.0012 endpoints - VVokkoOther services
Does 0x1111111111111111111111111111111111111111 belong to allbirds.com? Evidence, not a guarantee. $0.002.
Basevokko.eufrom $0.0012 endpoints - VVeridictum LegalAI & agents
Verify one legal citation. Body: {"citation": "<string>"} - full ("Miranda v. Arizona, 384 U.S. 436 (1966)") or bare ("384 U.S. 436"); the case name enables mismatch detection. Deterministic: regex plus cache / local corpus / CourtListener, no LLM in the path. status=verified (name confirmed), suspicious (reporter resolves to a DIFFERENT case - the fabrication signature), or not_found. verified=fa
BaseSolanaveridictum.legalfrom $0.012 endpoints - VVENZIA LAB Company ResearchMarkets & finance
VENZIA LAB company research and company intelligence for AI agents. Get a cited JSON report from public sources: overview, key facts, company financials when available, risks, opportunities, confidence and limitations. Use for business research, preliminary due diligence, risk analysis and competitor research of one company per call. Sources may include Wikipedia, web abstracts, company websites a
Basevenzia-complet-ezip.replit.appfrom $0.011 endpoint - Vvehicle-recall-check.iykykblog.workers.devAI & agents
Check NHTSA safety recall campaigns for a vehicle by make, model, and year — or by VIN (decoded live via NHTSA vPIC, then matched). Returns campaign numbers, components, defect/consequence/remedy summaries as published, report dates, units affected, and do-not-drive / park-outside advisories. Recall STATUS only — not a VIN decoder and not a per-VIN remedy-completion check. US federal public data (
Basevehicle-recall-check.iykykblog.workers.devfrom $0.051 endpoint - UUnlistedData & research
Find out why an x402 endpoint isn't listed in the Coinbase CDP Bazaar: checks CDP's live index status and can make a real test payment.
Baseunlisted.shfrom $0.021 endpoint - Ttoken-api.x402hub.xyzCrypto & DeFi
No description yet.
Basetoken-api.x402hub.xyzfrom $0.0011 endpoint - Ttextforagents.comOther services
Context crossmatch — one check ($0.005)
Basetextforagents.comfrom $0.00110 endpoints
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.