Crypto market data APIs for AI agents

Crypto market data APIs give an agent prices, pairs and market context one call at a time. This page keeps Finance and Data listings whose name, description or tags name that job, including crypto, bitcoin, DeFi, DEX markets and the usual price and funding words. The agent finds a listing in the free PayAPI Market catalogue, then pays the provider directly over x402. There is no API key and no account. Payment is in USDC on Base, Solana or Algorand, on the network that listing advertises. Settlement-verified means a paid route with an on-chain receipt: PayAPI Market paid the route from its own wallet, received a real response and linked the transaction. The examples further down are those verified listings. Imports marked Unclaimed (bazaar) are shown afterwards with that label, and they are not used as the examples. Listing an API here is free and the provider keeps 100% of each settled call. Counts on the page come from the live catalogue for this rule, and they move when listings do.

73 APIs and 704 endpoints match this page. 70 are settlement-verified: a paid route with an on-chain receipt.

Settlement-verified examples

Crypto Snapshot Pro - AI Trading Signals · $0.025 · settlement-verified · On-chain receipt
AI crypto trading signals: entry, target, stop, risk/reward, conviction. Pay per request via x402 in USDC on Base.
LLM2API - Gemma 4 12B + Crypto Trade Checks · $0.05 · settlement-verified · On-chain receipt
OpenAI-compatible Gemma 4 12B chat completions plus crypto pre-trade checks (news risk-check, liquidity size-check) powered by the live Kurage FreqAI trading system.
OptionsFlow · $0.05 · settlement-verified · On-chain receipt
Options flow signal for US equities and crypto (BTC/ETH/SOL). Returns IV skew, put/call ratio, unusual activity and a directional read. One call per ticker.
Kristo Intelligence — DeFi Signals API · $0.003 to $0.005 · settlement-verified · On-chain receipt
Live Base DeFi signals for ETH, ONDO, KAITO, DEGEN — action, confidence, one-line reasoning. Whale USDC tracking (≥ $5M transfers) on GET /api/v1/whaleflow. Cross-DEX arb spreads and rug checks. Pay-per-call from $0.003, x402, no signup.
Butterfly Delta Exact-Order Preflight · $0.01 · settlement-verified · On-chain receipt
Signed exact-order depth, spread, slippage, freshness, and venue-state preflight for Coinbase and Gemini crypto trading agents. Returns PASS/BLOCK/UNKNOWN before order placement.
Currency & Crypto API · $0.001 · settlement-verified · On-chain receipt
5 endpoints for fiat and crypto pricing: latest ECB exchange rates for any base currency, fast amount conversion, historical rates back to 1999, single-coin crypto price lookup, and batch crypto pricing for up to 50 coins at once. Per-key TTL cache (1h fiat, 30s crypto) keeps upstream load minimal.
Trend Signals · $0.001 to $0.05 · settlement-verified · On-chain receipt
PP-SuperTrend trend-flip signals across ~1,600 crypto assets (crypto only). Per-timeframe direction (1D/4H/1W), bars since the last flip, the invalidation band (trend-break) level, RSI divergences, and 14-day momentum. Computed technical-analysis signals derived from crypto price history - a derived signal, not a live price feed and not a forecast. Not financial advice: informational only, not a recommendation to buy or sell.
Yahoo Finance Stock Data & Historical Prices API · $0.01 · settlement-verified · On-chain receipt
Stock quotes, OHLCV chart history, previous close, 52-week range, exchange and currency metadata for ticker research. Deterministic test: symbol=AAPL&range=1mo&interval=1d. Values are publisher observations that may be delayed or revised—not exchange-certified live prices, adjusted history, fundamentals, corporate-action evidence, or investment advice.
Massive · $0.01 · settlement-verified · On-chain receipt
Aggregate stock bars over a date range in custom time windows. Pay per request in USDC on Base, no key. The verified route returns daily OHLCV bars for a ticker and date range: open, high, low, close, volume, volume-weighted average price and trade count per bar. The host advertises 23 paid GET routes at $0.01 each, covering bars, snapshots, SMA, EMA, RSI and MACD indicators, ticker reference, news and SEC filings, listed at https://agent.massive.com/llms-full.txt. Only the bars canary is settlement-verified.
Atlas Probability Intelligence — Bitcoin/BTC 60-Minute (1-Hour) Forecast · $0.005 to $0.01 · settlement-verified · On-chain receipt
Bitcoin/BTC 60-minute (1-hour) probabilistic forecast with up/down probabilities, price distribution, expected return, tail risk, freshness and model metadata for agents and trading intelligence.
Kronos by ForgeMesh · $0.005 to $0.05 · settlement-verified · On-chain receipt
Kronos crypto market intelligence for autonomous agents: hourly signal scores, calibrated price ranges, risk state, decision journals, and outcome audits. Paid per call in USDC on Base via x402.
Astra Crypto Market Data · $0.01 to $0.25 · settlement-verified · On-chain receipt
x402 pay-per-call crypto data: top-coin snapshot, single coin price/stats (CoinGecko id), and daily market brief. Website: https://astratc.github.io

Unclaimed (bazaar) imports

These rows were imported and the provider has not claimed them. They are not the examples above.

Buy a safety-checked Base DEX swap quote for USDC, WETH, EURC, cbETH, cbBTC,… · $0.01 · settlement-verified · Unclaimed (bazaar)
Buy a safety-checked Base DEX swap quote for USDC, WETH, EURC, cbETH, cbBTC, VIRTUAL, or AERO. Buy a safety-checked Base DEX swap quote for USDC, WETH, EURC, cbETH, cbBTC, VIRTUAL, or AERO. Returns unsigned calldata or a buyer-signable gasless payload; SafeRoute never holds funds, signs, or broadcasts.
Complete crypto and DeFi snapshot in ONE call for AI agents: spot prices for… · $0.001 · settlement-verified · Unclaimed (bazaar)
Complete crypto and DeFi snapshot in ONE call for AI agents: spot prices for your tokens, full market data (market cap, 24h volume, supply, 24h change) for the lead token, top-10 chains by TVL, and the best yield pools by APY. Complete crypto and DeFi snapshot in ONE call for AI agents: spot prices for your tokens, full market data (market cap, 24h volume, supply, 24h change) for the lead token, top-10 chains by TVL, and the best yield pools by APY. Prices, market, TVL and yields together — the most complete crypto+DeFi call per request.
Cross-venue funding-rate arbitrage + crowded-positioning radar: live perp fun... · $0.001 · settlement-verified · Unclaimed (bazaar)
Cross-venue funding-rate arbitrage + crowded-positioning radar: live perp funding rates, open interest, global & top-trader long/short ratios, whale positions, and liquidations across Binance, OKX, Bybit, Hyperliquid, and more. Omit symbol for the whole-market overview; pass one (e.g. BTC) for the per-exchange breakdown. (Hyperliquid-only perp data: use hyperliquid-market.)
Crypto Signal Feed · $0.003 · settlement-verified · Unclaimed (bazaar)
Crypto Signal Feed
Crypto token price in USD, EUR and more — real-time spot prices for one or ma... · $0.005 · settlement-verified · Unclaimed (bazaar)
Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana).
Current crude oil price in USD per barrel — WTI or Brent spot price from the U · $0.05 · settlement-verified · Unclaimed (bazaar)
Current crude oil price in USD per barrel — WTI or Brent spot price from the U.S. Energy Information Administration (EIA). Reflects the latest official daily figure, not live or real-time trading data; lags the market by several business days.
Current USD prices for any crypto asset: majors by ticker (BTC, ETH, SOL),… · $0.003 · settlement-verified · Unclaimed (bazaar)
Current USD prices for any crypto asset: majors by ticker (BTC, ETH, SOL), anything else by CoinGecko id or chain + contract address — so long-tail meme tokens work too. Current USD prices for any crypto asset: majors by ticker (BTC, ETH, SOL), anything else by CoinGecko id or chain + contract address — so long-tail meme tokens work too. Up to 25 assets per call with per-asset confidence scores and timestamps. Crypto only; no equities or ETFs. POST a JSON body like: {"symbols":["BTC","ETH","pepe"]}
DEX summary by DefiLlama — trading volume and history for one decentralized… · $0.005 · settlement-verified · Unclaimed (bazaar)
DEX summary by DefiLlama — trading volume and history for one decentralized exchange by protocol slug. DEX summary by DefiLlama — trading volume and history for one decentralized exchange by protocol slug.
DEX volumes by DefiLlama — all decentralized exchanges with trading-volume… · $0.005 · settlement-verified · Unclaimed (bazaar)
DEX volumes by DefiLlama — all decentralized exchanges with trading-volume summaries and charts. DEX volumes by DefiLlama — all decentralized exchanges with trading-volume summaries and charts.
DEX volumes for one chain by DefiLlama — decentralized-exchange trading volume… · $0.005 · settlement-verified · Unclaimed (bazaar)
DEX volumes for one chain by DefiLlama — decentralized-exchange trading volume on a single chain. DEX volumes for one chain by DefiLlama — decentralized-exchange trading volume on a single chain.
Hyperliquid perpetuals market data: live mark/oracle price, funding rate, ope... · $0.001 · settlement-verified · Unclaimed (bazaar)
Hyperliquid perpetuals market data: live mark/oracle price, funding rate, open interest, max leverage, and size specs for any tradable asset.
Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (... · $0.001 · settlement-verified · Unclaimed (bazaar)
Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): current spot price, token symbol, decimals, and a confidence score, for up to 50 coins in one call. Pass ?at=<unix> for the historical price at a point in time. Sourced from DefiLlama across every major chain.

Questions

Which APIs appear on the crypto market data page?

Finance and Data listings whose name, description or tags match the crypto market rule on this page: words such as crypto, bitcoin, DeFi, DEX, funding rate and token price. The match is exact and whole-word, and it is the same rule the sitemap uses.

How does an agent pay for a price or market call?

Discovery on payapi.market/mcp is free. The agent then calls the provider and pays that provider over x402 in USDC on Base, Solana or Algorand. No API key is required.

What does settlement-verified mean for a market data API?

It means a paid route with an on-chain receipt. PayAPI Market paid that route from its own wallet and got a real response back. The receipt link on each example is that transaction. Other routes on the same listing are not covered.