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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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4,273 results- AAI Web ExtractorSearch & web
AI Web Extractor — turn ANY url into clean, LLM-ready markdown. POST {url}; get the main content as markdown (boilerplate/nav/ads stripped) with title, description, and links. The scrape / read / url-to-markdown primitive for RAG and research agents. Fast, cheap, x402-native.
BaseSolanaextract.vevang.comfrom $0.011 endpoint - NNOB7E Evidence VerdictDeveloper tools
Evaluate a claim or question against one supplied HTML or PDF source and return anchored evidence.
Baseevidence-verdict-production.up.railway.appfrom $0.011 endpoint
EscrowPulseCrypto & DeFiTrustless USDC escrow for AI agents. Lock funds for a task, pay the worker when the principal approves, or dispute and refund. Solana settlement, no accounts.
BaseSolanaescrowpulse.waltsoft.netfrom $0.021 endpoint- Eentity-resolve.x402supply.comCrypto & DeFi
Fuzzy-dedupe a list of records into clusters of likely-duplicate entities. Blocks by normalized token prefix, scores with Jaro-Winkler + token-set matching (exact on email/phone), unions matches above threshold, and returns a merged canonical record per cluster with a confidence score. Deterministic, no LLM calls.
Baseentity-resolve.x402supply.comfrom $0.021 endpoint - EEdge Agents AICrypto & DeFi
Euro Area M3 from official ECB statistics, normalized for autonomous-agent use with explicit source timing, evidence and limitations. Purpose: give an agent the latest available euro area m3 with recent official history and source timing 24-hour freshness target; missing evidence is reported explicitly rather than invented.
BasexrplSolana+2edge-agents.aifrom $0.011 endpoint - DDomain IntelSocial & people
Company domain intelligence. Use when you need to know what a company's website runs on or how its email is set up: tech stack (CMS, e-commerce, analytics, chat, payments), email provider from MX, SPF/DMARC, domain age and registrar. No personal data.
Basedomain-intel.latamfx.workers.devfrom $0.0031 endpoint
DNSPulseDeveloper toolsDomain & DNS intelligence — records, SSL certs, subdomain discovery.
BaseSolanadnspulse.waltsoft.netfrom $0.0051 endpoint- Ddlf-gateway.agentlabel.workers.devImages, audio & video
DLF agent API key — $0.10 unlocks 10,000 mcents (1:1 starter) + $0.05 activation bonus unlockable by labeling 5 images
BaseRobinhood ChainPolygon+1dlf-gateway.agentlabel.workers.devfrom $0.101 endpoint - Ddiligence.x402supply.comCrypto & DeFi
Runs live diligence on an x402-metered endpoint before you pay it: verifies its 402 payment challenge is spec-compliant, checks the price against market baselines, inspects the payTo address on-chain (Base), checks third-party directory presence, and checks basic infra hygiene, and detects possible upstream API resale with evidence-based markup estimates. Returns a 0-100 score, a pass/caution/fail
Basediligence.x402supply.comfrom $0.021 endpoint - PPort 402Crypto & DeFi
Store a JSON value under a key in your persistent memory (namespace = your paying wallet).
Basedesktop-klb86tv.tailc3a527.ts.netfrom $0.0021 endpoint - Ddeposit.nowCrypto & DeFi
Open x402 funding rail: POST target+amount or provision:true+label+amount; pay 0.25% (min $0.001, max $0.25) via x402 on Base or Solana; net forwarded on the same chain. Optional managed child wallets (CDP, Base only). Optional public receipt when storage is configured.
BaseSolanadeposit.nowfrom $0.011 endpoint
DataPulseData & researchNOAA HRRR 3km weather forecast at any CONUS coordinate. Returns temperature, dew point, wind, precipitation, and cloud cover for up to 18 forecast hours.
BaseSolanadatapulse.waltsoft.netfrom $0.501 endpoint
DAP Compute Market TrackerSearch & webSearch compute derivative contracts by venue, status, index and settlement.
Basedap.solutionsfrom $0.011 endpoint- Ccrypto.penguindriver.comCrypto & DeFi
165 涉詐網址比對(付費版)
BaseSolanacrypto.penguindriver.comfrom $0.011 endpoint
YourAITools CreditsCrypto & DeFiPrepaid API credits (sample pack). Prepaid credits for the YourAITools agent APIs: one x402 payment of $0.005 USDC mints an API key holding $0.005 of credits. Send it as Authorization: Bearer <key> to PayGuard, TokenVerdict, SignCheck, WebRead, InjectScan, DomainCheck, PkgGuard, StackDetect or AgentGate paid routes; each call debits its normal price instead of an on-chain payment. Key shown once.
BasePolygonArbitrum+1credits.agentgate.workers.devfrom $0.0051 endpoint- Ccraft-deploy.everygoodwork.ioDeveloper tools
a play of craft-deploy — You can use it for the time you paid for. What it opens for you is yours, and the creator who sold it to you keeps paying to host it.
Basecraft-deploy.everygoodwork.iofrom $1.001 endpoint
CountersignatoryMarkets & financeOne screened human answers an approval, verification or judgment task: approve or reject, true or false, or a label, with a reason and the responder's disclosed identity. $1.25 at a 24-hour deadline. Answered by hand within the deadline or refunded in full automatically. Refused: CAPTCHAs, logins, third-party contact, medical, legal or financial advice.
Basecountersignatory.comfrom $1.251 endpoint- Ccontracts.memoryapi.orgSearch & web
Search active US federal grant opportunities on Grants.gov
Basecontracts.memoryapi.orgfrom $0.011 endpoint - CComplianceCheckAI & agents
Deterministic, source-cited regulatory applicability and deadline checks for AI systems and automated decision tools. Full request and response fields are documented at /openapi.json.
Basecompliancecheck-x402.fly.devfrom $0.501 endpoint - CCombinations (nCr)Developer tools
Binomial coefficient nCr = n!/(r!(n-r)!), the number of unordered r-subsets of n. Requires r ≤ n and min(r, n-r) ≤ 10000.
Basecombinatorics.openverbs.comfrom $0.0041 endpoint - Cclearcut.clawca.shImages, audio & video
Remove the background from an image URL and return a hosted transparent PNG URL. Paid responses include a feedback_id. Please rate the result for other agents with one free GET: https://clearcut.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully|partially|no.
Baseclearcut.clawca.shfrom $0.0011 endpoint - Cclawmail.xyzAI & agents
Create a custom email mailbox at @clawmail.xyz for AI agents and LLMs
Baseclawmail.xyzfrom $1.001 endpoint - Cclawguard.duckdns.orgCrypto & DeFi
Static malware and prompt-injection scan of an OpenClaw / AgentSkills bundle before install. Detects credential and wallet theft, exfiltration endpoints, remote code execution, reverse shells, obfuscated payloads, persistence, cryptominers, and injection in SKILL.md. Returns PASS/REVIEW/BLOCK with risk score and per-finding file, line and evidence. bundle = {files:[{path,content}]} or {github:'own
Baseclawguard.duckdns.orgfrom $0.031 endpoint - Cclawg.networkCrypto & DeFi
A registry of token records with a build log. A record is written only by the token's provable controller (on Solana: the pump.fun curve creator or the mint's update authority) and every version carries that ed25519 signature, so a reader verifies against the chain, not a directory. One $0.02 x402 write in USDC on Base, Polygon, Solana or Arc; reads, pages, log and OpenAPI are free.
BasePolygonSolana+1clawg.networkfrom $0.021 endpoint - Cchina-trends-x402.onrender.comSearch & web
What China is talking about right now: merged real-time hot-search lists from Weibo, Baidu, Douyin, Zhihu, Toutiao, Bilibili, Tencent News and The Paper in one schema (rank, title, heat, link). Optional keyword filter (Chinese or English) to monitor a brand/topic. 中国实时热搜聚合:微博/百度/抖音/知乎/头条/B站/腾讯/澎湃。
Basechina-trends-x402.onrender.comfrom $0.0051 endpoint
ChainLeadSocial & peopleWeb3 lead discovery: ranked projects from GitHub, official websites and read-only onchain checks, with evidence links, lead and opportunity scores and a qualified, review or rejected decision per project.
Basechainlead.onrender.comfrom $0.501 endpoint
Tanod chainpeekCrypto & DeFichainpeek (Tanod) Solana SPL token mint info: supply, decimals, authorities. Read-only. Use when an agent needs an SPL token mint's supply, decimals and authorities on Solana.
BasePolygonSolana+2chain.tanod.devfrom $0.0021 endpoint- CCF Package CheckCrypto & DeFi
Is this WordPress plugin, npm package or PyPI project abandoned? Status, 0-100 abandonment-risk score, months since last update, and the signals behind it.
Basecf-package-check.cf-exclusion-check.workers.devfrom $0.021 endpoint - SSCRIPTMASTERLABSMarkets & finance
Candle Signal Pro top picks for the latest scan
Basecandle-signal-pro.onrender.comfrom $0.051 endpoint - CCanaryGuard 402Crypto & DeFi
Deterministic prompt-injection firewall and honeypot scrubber for AI agents. Sanitizes untrusted text and blocks detected wallet-draining commands before context ingestion.
BaseSolanacanaryguard-402.onrender.comfrom $0.0135 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.