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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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915 results- SStableEnrichSocial & people
Exa Search - Neural search across the web
SolanaBasestableenrich.devfrom $0.00223 endpoints - Xx402.sniperx.funCrypto & DeFi
Get SmartMoney trading activities on token (sorted by time descending)
Solanax402.sniperx.funfrom $0.00110 endpoints - AAgents TrustOther services
API recommendation and x402 discovery for your task. Required query: need. Which API should I call? Recommends which x402 API to use for any task, with evidence. Describe a task in plain words. Compare up to five paid APIs, URLs, prices, payment networks and invocation details. Includes paid delivery evidence and risk flags. Provider calls are paid separately. No picks / non-2xx is never charged.
BaseSolanaalgorandapi.agents-trust.comfrom $0.011 endpoint
ExaSearch & webExa /search endpoint
BaseSolanaEVM chain 480+1api.exa.aifrom $0.0012 endpoints- Xx402.orthogonal.comSocial & people
Find email address for a person synchronously. Provide name + company or LinkedIn URL.
BaseSolanaEVM chain 143x402.orthogonal.comfrom $0.001409 endpoints - SStableTravelSearch & web
Search cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.
SolanaBasestabletravel.devfrom $0.00459 endpoints - SSiteCheckImages, audio & video
A GitHub user's public profile (name, company, location, blog, bio, followers, public repos, creation date) and their five most-starred repositories that are not forks.
BaseSolanaEVM chain 5042+9api.sitecheck-api.workers.devfrom $0.002224 endpoints
wafermap.xyzCrypto & DeFiGas Now — Current gas price and latest block on Robinhood Chain or Base.
BaseRobinhood ChainArbitrum+2wafermap.xyzfrom $0.00136 endpoints
SolEnrichSocial & peopleRanks every StonkFun reward coin 0-100 on whether it is alive, paying, and liquid: recent holder payout, holders, size, turnover, age, momentum, quote strength. Stages GEM / WATCH / NOISE / DEAD with reasons and round-trip tax. A shortlist, not a price forecast: in a paper test (9/26-10/3) higher scores did not beat the market. Pair with stonk-creator and stonk-quote. Milliseconds.
SolanaBaseapi.solenrich.comfrom $0.00151 endpoints- Xx402engine.appImages, audio & video
x402engine — Premium text-to-speech with ElevenLabs — ultra-realistic voices, multilingual support, custom voice IDs
BaseEVM chain 4326Solanax402engine.appfrom $0.001104 endpoints
2sAI & agentsResolve a coordinate to its IANA timezone and return the current UTC offset, local wall time, DST status, and short abbreviation. Query: lat (-90..90), lon (-180..180), at (optional ISO 8601 instant; defaults to now). Returns { tz, abbreviation, offsetMinutes, offsetHours, localTime, observesDst, isDst, januaryOffsetMinutes, julyOffsetMinutes, instant, source }. Polygon lookup against a CC0 timezo
BaseSolana2s.iofrom $0.0025116 endpoints- Gglim.shSocial & people
Search tweets with advanced operators (recommended). Body param is `query` (not q), e.g. {"query":"from:elonmusk AI min_faves:100"}
SolanaBaseEVM chain 143glim.shfrom $0.00124 endpoints
News headlines, latest newsCrypto & DeFiNews headlines, latest news. News headlines on any topic, crypto included, as JSON: title, URL, snippet, publisher domain and age, from the Brave Search API's news index. 1-20 results per call; freshness limits results to the past day, week or month. Results are for the caller's immediate use only: no storing, resale or model training (Brave API terms). Upstream failures return 503, uncharged. Use
BasePolygonArbitrum+1agent-data-tools.revmesh2074.workers.devfrom $0.002575 endpoints
NetIntelCrypto & DeFiEmail deliverability & domain security check — validates SPF, DKIM (multi-selector), and DMARC, detects spoofing and misconfigurations, and returns an A–F email security grade with transparent deductions. Anti-spam / anti-phishing readiness for any sending domain.
BaseSolananetintel.devfrom $0.001128 endpoints- TTwitter/X APIImages, audio & video
Search Twitter/X with structured filters or raw advanced-search syntax. Returns up to 20 normalized tweets with full text, author details, engagement metrics and a pagination cursor.
BasePolygonArbitrum+1twitter.use.x402atlas.comfrom $0.00521 endpoints - Aapi.myceliasignal.comOther services
Real-time Bitcoin price in USD, a median across 10 exchanges including Binance, Coinbase, Kraken and Bullish — Ed25519 signed attestation
BaseSolanaapi.myceliasignal.comfrom $0.01205 endpoints - Search arXiv papers | VextoriumSocial & people
Search scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...).
BaseSolanaPolygon+3api.vextorium.comfrom $0.001230 endpoints
Otto AIImages, audio & videoSearch X/Twitter for any query and get the actual matching tweets — keyword, $CASHTAG, from:handle (a user timeline), @handle (mentions), or boolean OR. Each tweet returns author, full text (long-form note tweets included), timestamp, likes and retweets (reply/quote counts when available). Most-recent-first for real-time monitoring and alerting. Live X search backend, pay-per-call USDC, structured
BaseSolanax402.ottoai.servicesfrom $0.00171 endpoints
FiatDock MarketplaceImages, audio & videoPay-per-call: x402 batch honesty probe
BaseSolanafiatdock.comfrom $0.001121 endpoints- Aads.apitoll.cloudImages, audio & video
Facebook Ad Library search by keyword — every live and recent ad matching a search term across all advertisers on Facebook, Instagram, Messenger and Threads. Returns the full ad creative (headline, body copy, CTA button + destination link, image and video URLs), the advertiser, run dates and days-running, and platform mix. Commercial and political ads, no Meta API or login. Competitor ad intellige
BaseSolanaads.apitoll.cloudfrom $0.034 endpoints - Ssvm402-serviceCrypto & DeFi
Solana token price and liquidity before you swap: one cheap per-mint market-data call returning the live price and liquidity depth, sourced from Jupiter and Helius. The pre-trade numbers when you do not need the full due-diligence report. — $0.01 USDC
Solanasvm402.comfrom $0.00214 endpoints
HubVibeImages, audio & videoFull website audit in one call: accessibility (WCAG 2.1 A/AA via axe-core), on-page SEO, HTTP security headers and page speed / page weight, from a single browser load of one URL. Cheaper than four separate calls; if any part cannot run, nothing is billed. Use a single audit route when you need only one of the four.
BaseSolanahubvibe-io.comfrom $0.0240 endpoints
Losbeto Market IntelligenceCrypto & DeFiTurn messy text into strict JSON: send text plus the fields you want and get back exactly those keys, null for anything the text does not state — never invented. Invoices, emails, contracts, scraped pages, chat logs....
BaseSolanaalgorand+2api.losbeto.xyzfrom $0.001112 endpoints- Aapi.deepnets.aiCrypto & DeFi
Token safety analysis for a Solana mint: overall risk level, wallet-network concentration, bundle detection, mintable/freezable flags, critical risks, and warnings. Returns the most recent cached analysis.
Solanaapi.deepnets.aifrom $0.016 endpoints - SStock OHLCV HistorySocial & people
Historical OHLCV/candlestick bars for any US stock ticker over any date range — 1-minute intraday up to monthly at precise multipliers (1/2/5/15/30/60/90-minute, 1-hour, 1/5-day, 1-week, 1/3-month), from real Yahoo Finance data. Supports backtesting, charting, and multi-timeframe analysis. $0.01/call.
BaseSolanax402financialdata.comfrom $0.00519 endpoints - Aapi.glianalabs.comImages, audio & video
GlianaAI - pay-per-call AI: LLM chat (OpenAI-compatible), image, video, music, speech - 100+ models, no signup, USDC. This resource: claude-opus-5 (Text Generation). https://ai.glianalabs.com
BaseSolanaapi.glianalabs.comfrom $0.00248 endpoints - SSiteCheck Crypto & FinanceCrypto & DeFi
DeFi pool APY (total, base, reward), TVL, 7/30-day APY change and impermanent-loss estimate (il7d, ilRisk) from DefiLlama. Filter by project, chain and symbol; returns up to 20 pools by TVL. APY is DefiLlama's estimate, not a guaranteed return.
BaseSolanaEVM chain 5042+9api.chainmarket-api.workers.devfrom $0.002174 endpoints
x402PulseCrypto & DeFiPolymarket trader scorecard for any wallet: skill score (0-100), edge over the odds paid, win rate vs. the win rate the odds implied, return (ROI), realized PnL, specialty and largest open positions. Scores the latest 200 finished bets, losses included.
BaseSolanax402pulse.devfrom $0.001448 endpoints- DDegenscan IntelCrypto & DeFi
Cheapest probe: last-hour event counts by class, top-3 severe events with impacts, venues open. Call hourly or as a health check before deeper calls.
BaseSolanaintel.degenscan.iofrom $0.00157 endpoints - UUSDC yieldSocial & people
USDC yield, best lending rates now ($0.002): supply and borrow APY of USDC on every Aave v3, Spark and Compound v3 market (Ethereum, Base, Arbitrum, Optimism, Polygon), utilization and size, highest APY first, read on chain every 10 minutes. Use to park idle USDC.
BasePolygonArbitrum+3api.marketintelligenceapi.comfrom $0.001104 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.