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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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3,044 results- Aaiaia-xaxon402.vercel.appOther services
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Baseaiaia-xaxon402.vercel.appfrom $0.0112 endpoints - Aaiaia-xaxo.vercel.appOther services
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Baseaiaia-xaxo.vercel.appfrom $0.0112 endpoints - AA11y QuickTriageImages, audio & video
Run fast HTML accessibility heuristics for language, title, headings, images, links, buttons, and form controls.
Baseai-utility-farm.brycedees1.chatgpt.sitefrom $0.012 endpoints - Aai-policy-kit.moneymaker-ai.workers.devAI & agents
Did this transaction pay USDC on Base to an address? Returns success, confirmations, every USDC transfer in the tx, the total received by `to`, and whether it meets `min`.
Baseai-policy-kit.moneymaker-ai.workers.devfrom $0.000511 endpoints - ai-computeAI & agents
Hourly smoothed GPU rental marks for one GPU and one tenor. Warming body when that series was never stored. Not a forecast.
BasePolygonSolanaai-compute-production.up.railway.appfrom $0.013 endpoints - Aagentwebintel.up.railway.appCrypto & DeFi
Fetches a web page server-side and returns a clean text extract with token-count estimates. Strips scripts, styles, navigation, ads and boilerplate. Served in JSON. $0.002 per call.
Baseagentwebintel.up.railway.appfrom $0.0021 endpoint - Aagentvet.themonexus.comAI & agents
Agent Vetting Bureau — Static security dossier of an MCP server / agent endpoint: endpoints, data flows, network calls, exfil signals, permissions requested, deterministic reputation score. Params: url (http/https).
Solanaagentvet.themonexus.comfrom $0.013 endpoints - SSemilla x402 seller checkSearch & web
The whole x402 market on Base in one call: active sellers, paid calls and unique payers over 24h, 7d and 30d, USDC volume, how many payTos are resolved, and how much activity was discarded as outliers.
Baseagentsmap.iofrom $0.0039 endpoints - DDDG Agent-Payable ServicesAI & agents
DDG agent-payable service request
Baseagents.daedalusdevelopmentgroup.comfrom $0.001280 endpoints - AAgent ToolsAI & agents
Batch IP lookup for log analysis and fraud review: up to 10 IPv4 or IPv6 addresses per call, 40% cheaper than singles. JSON body {ips:[...]}. Each item returns the owning network, range, country (RDAP) and reverse DNS. Bad items return per-item errors.
Baseagents.crowdspark.mefrom $0.00154 endpoints - Aagentreferee.aiAI & agents
Agent Referee — a panel of 2 independent AI judges from different companies (sealed verdicts) decides between two AI agents by rules both agreed to. Both judges must agree, or it's a mistrial sent back to the owners. Each agent pays this to join. Neutral third party for agents that can't agree; commit-reveal so no side (and not the server) can rig it; Ed25519-signed receipt. Step 1: POST /matches
Baseagentreferee.aifrom $0.0110 endpoints - Aagentready-audit.seshiccse023.chatgpt.siteCrypto & DeFi
Extract clean, LLM-ready Markdown or token-efficient text from any public webpage for RAG ingestion, research, summarization, or agent context. Strips navigation, ads, scripts, forms, and repeated boilerplate; preserves headings and resolved links; labels fetched content as untrusted; and returns at most 50,000 characters.
Baseagentready-audit.seshiccse023.chatgpt.sitefrom $0.0051 endpoint - Aagentproof-base.softcreek2.chatgpt.siteCrypto & DeFi
Base token due diligence: exact-block contract code, ERC20 metadata and proxy storage; available GoPlus security flags and derived GeckoTerminal liquidity observations. Explicit missing-data coverage. Timestamped evidence, no trade advice.
Baseagentproof-base.softcreek2.chatgpt.sitefrom $0.011 endpoint - AAgentPay GeocodeImages, audio & video
AI text summarization: condenses up to 20k characters into a crisp 250-word summary. Use when you have a long document, article, or transcript and need the gist before reasoning over it.
Baseagentpay.helpfrom $0.0037 endpoints - Doc ToolsSearch & web
Domain & Network Lookup: One-call domain report: registration, DNS, email provider, SPF/DMARC, hosting.
Baseagentpay.agentpay-apis.workers.devfrom $0.0058 endpoints - Aagentlayer.xyzOther services
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Baseagentlayer.xyzfrom $0.014 endpoints - Aagentkit-x402.zenith-ops.workers.devImages, audio & video
Technical SEO audit of one page: HTTP status, redirect chain, title and meta description length, H1 count, canonical, robots meta, hreflang, Open Graph and Twitter tags, JSON-LD types, images without alt text, link counts, security headers (HSTS, CSP, X-Frame-Options), technology detection (CMS, framework, analytics, CDN) and a prioritised issue list with a 0-100 score. Static HTML only; honours r
Baseagentkit-x402.zenith-ops.workers.devfrom $0.0014 endpoints - Aagenthustle.aiAI & agents
No description yet.
BaseSolanaagenthustle.aifrom $0.00127 endpoints - AAgentGateCrypto & DeFi
Check whether an AI agent is registered in the Concordium Agent Registry (CIS-8004), Active, and Verified by Concordium (Agent Card hash matches on-chain). Input: badge (CIS-2 token address) or Concordium account.
Baseagentgate.agentgate.workers.devfrom $0.0051 endpoint - AAgentGateSocial & people
Web content extraction: fetch any public URL and get clean readable text, title, meta description, OpenGraph data, headings, links and word count as JSON. Built for AI agents that need web page content without HTML noise.
Baseagentgate-x402.netlify.appfrom $0.0024 endpoints - Aagentfx.funCrypto & DeFi
Alphaᶠˣ Momentum Read — One-paragraph momentum read on any Solana token or ticker.
Solanaagentfx.funfrom $0.0023 endpoints - AagentdietCrypto & DeFi
AgentDiet Semantic Context Compressor & Token Optimizer ($0.005 USDC)
Baseagentdiet.devfrom Free140 endpoints - Aagentdiet-apiCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Baseagentdiet-api-72343955726.us-central1.run.appfrom Free1 endpoint - AagentdietAI & agents
A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor (/v1/x402-audit) — Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers.
Baseagentdiet-72343955726.us-central1.run.appfrom Free5 endpoints - Aagentdatapro.comCrypto & DeFi
DeFi Smart Contract Vulnerabilities: Real-Time Monitoring for Agents
Baseagentdatapro.comfrom $0.019 endpoints - Aagentdata-api.degrees2.workers.devCrypto & DeFi
DeFi Smart Contract Vulnerabilities: Real-Time Monitoring for Agents
Baseagentdata-api.degrees2.workers.devfrom $0.014 endpoints - TTransaction Decoder AgentAI & agents
BeCoder tx-decoder — 0.005 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 per call
Baseagent.becoder.xyzfrom $0.0051 endpoint - AApiguru Amazon Data APISearch & web
Live Amazon deals feed with current discounts: ASIN, title, deal price, original price, discount percentage, deal badge and end time. Filter by department, brand id, 4-star rating cut-off, min/max price, minimum discount or Prime program; each answer lists the category and brand ids it accepts and where the next page starts. 20 marketplaces. Built for deal aggregation and price-drop alerting.
BaseAvalanchePolygon+1agent.apiguru.appfrom $0.002410 endpoints - Aagent-web-intelligence.kuhg44.workers.devAI & agents
Public domain DNS, mail configuration and HTTP security headers
Baseagent-web-intelligence.kuhg44.workers.devfrom $0.011 endpoint - AAgent Web ExtractSearch & web
Extract clean structured content from a public web page
Baseagent-web-extract-api.akhabr09.workers.devfrom $0.0051 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.