Explore APIs
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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- Paid calls · 30 days
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2,935 results- Oonvexia.comSocial & people
Topic ranking. Ranked social topics for a window. Returns topics + window_hours.
Baseonvexia.comfrom $0.0013 endpoints - RRugShield Solana Rug CheckCrypto & DeFi
Solana pump.fun token warnings: sniper-linked fees and creator launch/graduation history. Advisory signals evaluated on selected historical tokens; results may differ for new tokens. Returns RISK_FLAGS or NO_FLAGS; NO_FLAGS does not mean safe. Input: token mint (base58). Replace :address or {address} with the actual mint. Templates are discovery only: do not pay. Ask the user if the mint is missin
BaseSolanagetrugshield.comfrom $0.013 endpoints - Xx402aiSearch & web
Convert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 characters; returns {embedding: number[768], model, dimensions, elapsed_ms}. One text per call; English works best.
Baseapi.x402ai.devfrom $0.013 endpoints
Geo402Search & webGeo web fetch for AI agents. Fetch any public web page from a residential IP in a chosen country (190+ countries, optional city or US state) as clean markdown, text or HTML, with the product price/currency/availability extracted automatically when the page has product data. $0.005 per page, only charged when the page loads. Respects robots.txt; no CAPTCHA solving; sign-in, payment and email servic
Basegeo402.comfrom $0.0043 endpoints
prices.genexxis.comOther servicesMedian spot price of up to 50 coins across Binance, Coinbase, Kraken, OKX and Bybit in usd/usdt/eur/btc, with per-venue prices, 24h change %, summed 24h USD volume and cross-venue spread %. ids accepts CoinGecko ids or tickers.
Baseprices.genexxis.comfrom $0.0033 endpoints
odds.genexxis.comOther servicesMost traded open prediction markets right now across Polymarket and Kalshi, ranked by 24h volume, with implied probabilities and links.
Baseodds.genexxis.comfrom $0.0053 endpoints- Iinsider-radar-agentMarkets & finance
Same KOL confluence feed as kol_signals_live with every row at least 45 minutes old — the evaluation tier
SolanaBaseinsider-radar-agent.insider-radar-agent.workers.devfrom $0.015 endpoints
depth.genexxis.comDeveloper toolsKorea premium per coin: Upbit and Bithumb KRW prices vs the Binance USDT price, converted with the ECB USD/KRW reference rate (date returned); without symbols, the top 20 Upbit markets by 24h KRW volume.
Basedepth.genexxis.comfrom $0.0032 endpoints- AAgent Rest StopCrypto & DeFi
Read a public web page and return its visible text. Send url. The response includes the final url, the page title, the HTTP status, and the page text.
Baseagentreststop.comfrom $0.0024 endpoints - MMysticAPIDeveloper tools
Live universal sky snapshot, no inputs: geocentric ecliptic longitudes for 13 bodies (Sun through Pluto, Chiron, lunar nodes) with zodiac sign/degree and 64-gate wheel placements, current moon phase and illumination, active retrogrades, and a 30-day almanac of upcoming stations and lunations. JPL-validated ephemeris. JSON. $0.01 USDC via x402, or API key.
BaseSolanamysticapi.comfrom $0.011 endpoint - Xx402 CheckupOther services
Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.
BaseBase Sepoliacheckup.kagurazaka.devfrom $0.0051 endpoint - FFlowCrypto & DeFi
Use when an agent is about to pay another agent and needs one finished answer first: should you pay this payee? PayCheck ($0.50) runs Flow's whole checker stack on the payee — payee verdict (kind, activity, contract safety), wallet approval-exposure audit, and recent USDC settlement history on Base — returning one grade (ALLOW / REVIEW / BLOCK, 0-100), a verify_status, all checks, the evidence, an
BasePolygonArbitrum+1flow-kg4x.vercel.appfrom $0.019 endpoints - FffpipeImages, audio & video
Extract still frames from any video as JPEG, WebP or PNG: sample many for a vision model, or grab one frame at a given timestamp (a thumbnail/poster/screenshot). Modes: every frame, every Nth, a rate in seconds, keyframes, N evenly spaced, or exact timestamps. One frame at 5s: mode=timestamps, timestamps=[5], format=jpeg. Up to 1000 frames/job; result is a manifest of frames with timestamps and do
Baseffpipe.devfrom $0.012 endpoints - UUK Fuel Prices (testnet)Data & research
UK fuel prices per forecourt for one postcode district. Query parameter: postcode (e.g. SW1A1AA or SW1A). Returns JSON: stations, price per fuel type (E10, B7...), timestamps. Source: GOV.UK Fuel Finder. Contains public sector information licensed under the Open Government Licence v3.0. Independent; not an official government service, not endorsed by GOV.UK. Prices as published, expected pence per
Base Sepoliaapi.ukfuelprice.workers.devfrom $0.011 endpoint - Ppitcrew-api.appin60.comCrypto & DeFi
Why did my transaction fail? Give a chain and tx hash; get status, decoded method, gas used vs limit, fee, token transfers, events and, for failed transactions, the decoded revert reason (Error(string), Panic codes, custom errors resolved by signature) with a plain-language fix. Pending transactions get a stuck-transaction diagnosis (nonce gap, underpriced fee) and the replace/cancel recipe. Chain
BaseArbitrumpitcrew-api.appin60.comfrom $0.0057 endpoints
Base gas priceSocial & peopleBase gas price: base fee, priority fee p25/p50/p90 over the last 20 blocks, ready-to-sign maxFeePerGas and maxPriorityFeePerGas for slow, normal and fast inclusion, an L1 data-fee upper bound, and the estimated total cost in wei of an ETH transfer and an ERC-20 transfer, live from Base mainnet RPC with the block number. Required: none; optional blocks (5 to 50). $0.0015 USDC on Base. Failed read,
Baseontarioprotocol.comfrom $0.00155 endpoints- Mmechamanda.comSearch & web
Search for upcoming concerts. Supports city, date range, genre, and artist filtering.
Basemechamanda.comfrom $0.014 endpoints - PProtocol Radar - Aaron ZhangCrypto & DeFi
Status of every Ethereum Improvement Proposal as JSON: number, title, status (living, final, last-call, review, draft, stagnant, withdrawn) and link, plus counts by status. Parsed live from eips.ethereum.org (EIPs are CC0).
BaseBase Sepoliaaaron-protocol-radar.vercel.appfrom $0.014 endpoints - PPreIPO Feed by Aaron ZhangCrypto & DeFi
Anthropic pre-IPO fundamentals as JSON: FY2025 revenue and May 2026 run-rate revenue, operating expenses, operating and net loss, compute and infrastructure spend, compute obligations, cash and short-term investments, top-customer revenue share, compute cost per revenue dollar. Each number has its own source URL, verification grade and value type (approx, lower bound, exact, derived).
BaseBase Sepoliapreipo-feed.vercel.appfrom $0.017 endpoints - CCourt Delta ProData & research
Look up a North Carolina (NC) court case or traffic citation and get its status, hearing dates, charges, party roster and counsel, dispositions, service of process, and bail / failure-to-appear signals. Supply ONE of caseNumber, citation, portalSessionRef or caseHash. Read-only. Informational, not legal advice.
Basemcp.courtdelta.comfrom $0.014 endpoints
KushBitx AgentProofCrypto & DeFiFast pre-payment sanity check for agents on Base: confirms the RPC reports Base mainnet (chain ID 8453) and that the official USDC contract has deployed code. No request body. Returns PASS or FAIL with both checks and a timestamp. It is not a token-risk report, transaction simulation or payment proof.
Basekushbitx.comfrom $0.0015 endpoints- GGridPulseAI & agents
Home battery storage ROI and payback calculator — Powerwall vs alternatives, backup-power value, with the IRA 30% tax credit and state incentives applied. For homeowner and solar agents.
BaseSolanaPolygon+8gridpulse.theaslangroupllc.comfrom $0.0110 endpoints - Eedge.goldsky.comDeveloper tools
Goldsky Edge RPC — prepaid balance, funds ~1000 requests at 5 atomic units each
BasePolygonArbitrum+10edge.goldsky.comfrom $0.00510 endpoints - TText Tools APIImages, audio & video
Wandelt CSV in JSON oder JSON in CSV um, ohne KI (Convert CSV to JSON or JSON to CSV, deterministic).
Base2-28-111-166.sslip.iofrom $0.0025 endpoints - Xx402 PulseCrypto & DeFi
Live BTC/ETH/SOL prices + the Crypto Fear & Greed Index in one call. Sourced from CoinGecko and alternative.me public data, combined for convenience.
Basex402-pulse-seller-production.up.railway.appfrom $0.0021 endpoint - Ttoken-riskCrypto & DeFi
Deterministic on-chain structural risk report for an ERC-20 token on Base. Keyless x402-native payment — no signup, no API key. Reports STRUCTURAL risk, not reputation: centralized-control powers (mint/pause/blacklist) are flagged regardless of issuer. Score 0-100, higher = structurally safer. See free real samples before paying: GET /samples/index.json
Basetoken-risk.comfrom $0.012 endpoints - SStableNinjaOther services
Fetch Google Play Store top grossing games.
Basestableninja.devfrom $0.014 endpoints - Kkarte.halowerk.comAI & agents
Returns an hourly CAMS forecast for UV Index under predicted clouds, clear-sky UV Index and surface solar irradiance. UV Index is derived from the CAMS biologically effective dose rate with the documented factor 40. Solar irradiance is de-accumulated from successive hourly surface-solar-energy fields. Values represent the nearest 0.4 degree model cell, not an on-site pyranometer.
Basekarte.halowerk.comfrom $0.0054 endpoints - SSpace Data APIImages, audio & video
Complete structured package for one illustrated classic of early science/engineering (1588-1748): verified public-domain scan, full metadata, curated description, full-text OCR link, IIIF manifest, and page-image URL template. Works: Ramelli machines 1588, Agricola De re metallica 1621, Hooke Micrographia 1665, Newton Principia 1687 & Opticks 1730, Euler Introductio 1748. Param: ?id=<work_id>
Baseagentdataapi.onrender.comfrom $0.014 endpoints - OOnRamperXCrypto & DeFi
OnRamperX is a non-custodial value router for agents and humans: fiat<->crypto and cross-chain via one quote interface (Coinbase Onramp v2, Relay, x402). This endpoint returns the router's live capabilities and rail status; use /api/x402/quote for a ranked route. Settlement centers on USDC on Base.
Baserouter.mudko.comfrom $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.