Market data x402 APIs

Paid APIs an AI agent can call with x402. Burnbound checks each one every 6 hours without paying: it must answer a valid x402 challenge, on the host listed here, in USDC on Base or Base Sepolia. Prices are per call.

10 APIs · No paid placements: the list is alphabetical. A listing never lets an agent pay an API; its policy decides.

API Toll Cryptocrypto.apitoll.cloud
Cryptocurrency prices.
Market data · Base · fixed
from 0.001 USDC✓ verified Oct 5, 2026
Bagswww.getbags.app
Token data from the Bags API.
Market data · Base, Base Sepolia (testnet) · fixed
from 0.01 USDC✓ verified Oct 5, 2026
CoinGeckopro-api.coingecko.com
Crypto prices and liquidity pools.
Market data · Base · fixed
from 0.01 USDC✓ verified Oct 5, 2026
CoinMarketCappro-api.coinmarketcap.com
Cryptocurrency quotes.
Market data · Base · fixed
from 0.01 USDC✓ verified Oct 5, 2026
Hugen Ticktick.hugen.tokyo
Foreign exchange prices (ticks).
Market data · Base · fixed
from 0.005 USDC✓ verified Oct 5, 2026
Kronos Signalskronossignals.com
Bitcoin price forecasts.
Market data · Base · fixed
from 0.05 USDC✓ verified Oct 5, 2026
Massiveagent.massive.com
Financial market data: stocks and filings.
Market data · Base · fixed
from 0.01 USDC✓ verified Oct 5, 2026
Oblique Marketsapi.oblique.markets
Prediction market data.
Market data · Base · fixed
from 0.01 USDC✓ verified Oct 5, 2026
OmniTerminalomniterminal.app
Market news with an event window.
Market data · Base Sepolia (testnet), Base · fixed
from 0.001 USDC✓ verified Oct 5, 2026
Otto AIx402.ottoai.services
Crypto news and analysis.
Market data · Base · fixed
from 0.005 USDC✓ verified Oct 6, 2026

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10 APIs · No paid placements: the list is alphabetical. A listing never lets an agent pay an API; its policy decides.