Catalog

Agentic API

Blocksize Market Data

Agent-native institutional crypto, FX, and metals market data through listed x402-paid per-call routes.

Payment rails

x402MPP

Works with agents

ClaudeCodex

Use when an AI agent needs live market prices, VWAP, bid/ask snapshots, FX, or metals from the listed paid sample routes without creating an API account.

# First time$ npm install -g @solana/pay$ pay setup# Use API$ pay catalog show blocksize$ pay curl https://mcp.blocksize.info/v1/bidask/BTC-USD \  -X GET \  -H 'content-type: application/json' \  -d '{"jsonrpc":"2.0","id":1,"method":"getHealth"}'

Endpoints

4 total
GET
v1/bidask/BTC-USD
Fetch crypto bid-ask snapshot
$0.002/requests
GET
v1/fx/EURUSD
Fetch FX exchange rate data
$0.005/requests
GET
v1/metal/XAUUSD
Fetch precious metals price data
$0.005/requests
GET
v1/vwap/BTC-USD
Fetch crypto VWAP market data
$0.002/requests