OneSource
onesource.io
OneSource unifies blockchain data behind a single agent-native API. Ask in natural language or REST, pay with x402, MPP, or use an API key.
USDCBase
Blocksize
blocksize.info
Blocksize aggregates crypto and tokenized stock prices from 70+ exchanges, publishes into eight oracle networks and delivers the same feeds through one API.
Crypto payment details
- Payment protocol
- x402
- Networks
- Base, Solana
- Tokens
- USDC
- Typical price per call
- $0.002–$0.005 per call (check the provider for current pricing)
- Example paid endpoint
https://mcp.blocksize.info/v1/bidask/BTC-USD- Listed in
- Coinbase CDP x402 Bazaar
How we verified it
Listed as an x402 seller in the Coinbase CDP Bazaar discovery API (payment requirements: Base, Solana; USDC) and homepage fetched (HTTP 200) on 2026-10-21. Last checked 2026-10-21.
- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?limit=1000
- https://blocksize.info/
The description summarizes the provider's own site. YourAITools is not affiliated with Blocksize. Listing a tool is not an endorsement: check pricing and terms with the provider before paying.
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