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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Crypto & DeFi
1,108 results- Ppoolproof.ruCrypto & DeFi
Is this chain alive: TVL trend over 1y/6m/90d/30d
Basepoolproof.rufrom $0.0099 endpoints - Xx402.tokenizen.nlCrypto & DeFi
tokenizen vulnerability pattern search, 1032 exact-reconciled findings from 10 Sherlock contests
Basex402.tokenizen.nlfrom $0.0029 endpoints - Xx402-paid-mcp.vercel.appCrypto & DeFi
Compute a SHA-256 hex digest of a text payload. Cryptographic hash / checksum helper. Not an attestation.
BaseSolanax402-paid-mcp.vercel.appfrom $0.0011 endpoint - TTradeSonarCrypto & DeFi
List markets with price and open interest
Baseapi.tradesonar.iofrom $0.00111 endpoints - GGas PriceCrypto & DeFi
Get current gas price information (base fee, priority fee suggestion, gas price)
Basebase-facts.yankii.frfrom $0.0019 endpoints - AAgent-Ready AssessmentCrypto & DeFi
Audits a website for AI agent and AI crawler readiness from caller-supplied inputs: robots.txt, HTML, headers, llms.txt, sitemap lastmod, /.well-known. Names the policy per AI token (GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, PerplexityBot, Perplexity-User, Google-Extended, Gemini-User, KagiBot, Kagi-User, Applebot-Extended, Bytespider, CCBot, Amazonbot, meta-ex
Baseapi.ozdreamtools.defrom $0.0114 endpoints - WWallet Sanctions ScreenCrypto & DeFi
Crypto wallet sanctions & compliance screening (AML/KYT): screen any EVM/Solana/Bitcoin/Tron/XRP wallet against the official OFAC SDN crypto list (UN/UK declared) with mixer (Tornado Cash) exposure and wallet age, returning PASS/WARN/BLOCK and a cryptographically SIGNED compliance receipt (list-version-pinned, verifiable offline) for audit. OFAC wallet check, travel-rule / KYT counterparty screeni
Basex402-endpoints.onrender.comfrom $0.0054 endpoints - EEthereum Token VerdictCrypto & DeFi
Ethereum mainnet ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice. Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD
BasePolygonArbitrumapi.arysphere.comfrom $0.0025 endpoints - SSignalPulseCrypto & DeFi
Crypto market tick — BTC, ETH, SOL live price + 24h change, Fear & Greed index, and a deterministic regime verdict (RISK_ON / DRIFT_UP / CHOP / DRIFT_DOWN / RISK_OFF) in ONE $0.05 call. Built for agent loops that need a cheap market pulse every cycle; escalate to /api/scan/crypto ($2) for the institutional deep scan with technicals, derivatives and a directional call. 60s freshness, no LLM in the
BaseBNB ChainSolanasignalpulse.theaslangroupllc.comfrom $0.0527 endpoints - HHyperliquid Account IntelligenceCrypto & DeFi
A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address.
BasePolygonArbitrum+1hyperliquid-accounts.use.x402atlas.comfrom $0.017 endpoints - AAgentPay Pre-Trade Risk CheckCrypto & DeFi
Pre-trade risk check for AI agents trading crypto: live orderbook slippage at YOUR size, side-aware funding carry, open-interest crowding, and optional contract security — composed into a single ok/caution/avoid verdict with per-factor reasons and raw data embedded. Answers 'is this trade sane?' before trading, not after. Replaces four API integrations plus the judgment layer.
Basestellarstacksagentpay.toolsfrom $0.013 endpoints - BBase DeFi risk intelCrypto & DeFi
Full risk card for one Base yield opportunity: 0-100 risk score with the main risks and their evidence, yield sources, sustainable APY, expected return, liquidity, dependencies and recent risk events. Useful before depositing into, recommending or comparing a Base yield. The id comes from the free /api/v1/opportunities. Unknown ids answer 404 and invalid arguments 400 before any payment; 503 while
Baseintel.fintechhodl.comfrom $0.0114 endpoints - Bbooaip.vercel.appCrypto & DeFi
Current crypto Fear & Greed Index with 1-day change (alternative.me).
Basebooaip.vercel.appfrom $0.0054 endpoints - Wweather.hugen.tokyoCrypto & DeFi
Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one call. Global coverage updated every 15 minutes. No API keys, no geocoding setup, no rate limits. Accepts USDC payments on Base and Solana
BaseSolanaweather.hugen.tokyofrom $0.011 endpoint - AAPKCube Android App SearchCrypto & DeFi
Search Android apps and games by name, publisher or package name across the APKCube catalogue of Google Play apps. Each match returns the package id, title, developer, icon, rating, installs, category and whether an APK download is available, with facet counts by type and category. Keyless pay-per-call in USDC on Base or Solana: no account or API key.
BaseSolanaapkcube.comfrom $0.0124 endpoints
Wallet Sanctions & Trust ScoreCrypto & DeFiSanctions screening for a crypto wallet before you pay it: checks the address, and an agent's owner and payout wallet, against OFAC SDN-listed EVM addresses, then returns a 0-100 trust score, risk band and proceed / hold / block from on-chain history and sybil-filtered ERC-8004 reputation. Every flag and score component is itemized; insufficient_data instead of a guess. Base. Free: GET /v1/verify.
Basetrust-agent.iofrom $0.0029 endpoints- Ppayments-intel-production.up.railway.appCrypto & DeFi
What are the symbol, name, decimals, contract address and issuer of this stablecoin on this chain? Cited stablecoin token facts from a prepared dataset (USDC, EURC, USDT, PYUSD, DAI on the chains /v1/chain covers, where a permissively licensed source lists them): symbol, name, decimals, contract address, chain, issuer, each with a source citation and license. Fields not established from a source a
Basepayments-intel-production.up.railway.appfrom $0.0015 endpoints
Web Page to MarkdownCrypto & DeFiRead any public web page as clean, LLM-ready Markdown. URL to markdown web scraper: fetches the page, strips navigation, ads, scripts, cookie banners and boilerplate, keeps the main content with headings, lists, links and tables. Use it to read, quote or summarise an article, docs page, blog post, product page or GitHub issue from a URL. Typically 90-99% fewer tokens than raw HTML; token counts re
Basepaid-md.hihat.workers.devfrom $0.0023 endpoints- Aapi.agentfeeds.jpCrypto & DeFi
Freshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.
Baseapi.agentfeeds.jpfrom $0.00114 endpoints - HHyperliquid Prediction MarketsCrypto & DeFi
The catalog of Hyperliquid prediction-market outcomes and their metadata.
BasePolygonArbitrum+1hyperliquid-predict.use.x402atlas.comfrom $0.0052 endpoints - Oopenworker.etips.meCrypto & DeFi
Returns a single, verifiable snapshot of any EVM wallet: native balance, ERC-20 token balances, current block number, and recent activity count across the most popular chains (Ethereum, Base, Arbitrum, Polygon). Built for x402 agents that need on-chain facts without managing RPC keys or node infrastructure. Each call returns a deterministic JSON payload with a chain-specific block number at snapsh
Baseopenworker.etips.mefrom $0.0113 endpoints - Llibrary.proofivy.comCrypto & DeFi
Get list of all available CryptoSlate content URLs with their last updated dates
Baselibrary.proofivy.comfrom $0.015 endpoints - Aagent-briefs.walletstarter.workers.devCrypto & DeFi
Daily JSON bundles for agents: BTC/ETH volatility regime, crypto news with top x402 sellers, Brazil business calendar, x402 agent economy, Base chain gas, US macro (CPI, unemployment, SOFR). This route serves the btc-eth-vol-regime bundle.
Baseagent-briefs.walletstarter.workers.devfrom $0.016 endpoints - AAgoranomeCrypto & DeFi
x402 ping and test payment: can my wallet pay an x402 API? Pay a fraction of a cent in USDC on Base and get a signed receipt back, proof that your wallet and x402 client complete a real paid call end to end, plus what the Lab knows about your wallet and which tool to try next. Use when an agent needs a cheap test payment endpoint before buying anything bigger.
Baseapi.agoranome.comfrom $0.00114 endpoints
Trading Zones ETH 4H SetupCrypto & DeFiUse this when a user or autonomous agent requests a current Ethereum (ETH) 4H crypto market decision with entry, liquidity-zone stop loss and take profit. Returns LONG, SHORT or NEUTRAL, confidence, R:R and nine indicators. Free, independently countable live-simulation evidence is available before purchase. Price: $0.03 USDC via x402 on Base Mainnet; no API key or account. Public evidence and purc
Baseapi.tradingzones.appfrom $0.036 endpoints- PPage LinksCrypto & DeFi
Fetch a reviewed public page and return its links with resolved absolute URLs and anchor text, the canonical URL, the declared meta robots directive, and how many links leave the host. Relative hrefs are resolved against the page, so a caller never has to guess a base.
Baseapi.zfinia.comfrom $0.00414 endpoints - OOld Colony Web Agent ServicesCrypto & DeFi
For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retent
Baseapi.oldcolonyweb.comfrom $0.0025 endpoints - Xx402 Trust ScoreCrypto & DeFi
Trust score (0-100, grade A-F) for any x402 endpoint, cataloged or not: 30d uptime, 402-envelope compliance, latency, age, real on-chain USDC settlement volume, and price stability, with a full auditable breakdown. Uncataloged endpoints are live-probed on first query and auto-adopted. Know before you pay.
Basex402-trust.comfrom $0.0059 endpoints
cryptofeed402Crypto & DeFiPerpetual futures funding rates and open interest (Hyperliquid), live: the 10 perps with the most extreme funding rate now (over $1M 24h volume), each with annualized funding APR and open interest in USD, plus the current funding rate for a BTC/ETH/SOL/HYPE/NEAR/AAVE watchlist. Use it to spot crowded longs or shorts, squeeze risk and funding-carry candidates. Failed calls are never charged. JSON.
Basecryptofeed402.sitefrom $0.00213 endpoints- GgigsaiCrypto & DeFi
Call when you need the readable content of a public web page: returns clean markdown (title, headings, lists, links; scripts and navigation removed), up to 100k characters. Pages that fail (404, blocked, timeout) are not charged.
Basegigsai.xyzfrom $0.0025 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.