Blocksize Market Data for Claude
Blocksize Market Data connects Claude to a hosted Streamable HTTP MCP endpoint for read-only market-data discovery, daily credit visibility, and live crypto, supported equity ticker, FX, and metals snapshots. The Claude connector does not transfer money, execute wallet transactions, submit payment proofs, or place trades.
https://mcp.blocksize.info/anthropic/mcp/What Claude Can Use
Search supported crypto, equity ticker, FX, and metals instruments before making live data calls.
Use search_pairs with asset_class=equity, then call get_bid_ask for supported stock tickers such as AAPL.
Show the signed-in user's remaining Blocksize daily data credits.
Fetch read-only crypto VWAP, bid/ask, supported equity bid/ask, FX, and metal snapshots.
MCP Tools
search_pairs: Search supported instruments by symbol or asset name.list_instruments: List supported instruments for one Blocksize service namespace; usebidaskfor supported equities.get_credit_balance: Show remaining daily data credits for the signed-in user.get_vwap: Fetch a crypto VWAP snapshot for one supported pair.get_bid_ask: Fetch bid/ask data for one supported crypto pair or equity ticker.get_fx_rate: Fetch a supported FX pair snapshot.get_metal_price: Fetch a supported metal spot-price snapshot.
Authentication
Users sign in with Blocksize through OAuth. Live data calls spend included server-side daily data credits. Discovery tools are available for instrument lookup and metadata. OAuth metadata is available at:
https://mcp.blocksize.info/.well-known/oauth-protected-resource/anthropic/mcp/
https://mcp.blocksize.info/.well-known/oauth-authorization-server/anthropic/mcpExample Prompts
- Search Blocksize for BTC market data instruments.
- Search Blocksize for AAPL with asset_class=equity, then get the current AAPL bid/ask snapshot.
- Get the latest BTC-USD VWAP from Blocksize.
- Show my remaining Blocksize data credits.
- Get the current EURUSD FX snapshot.
- Get the latest XAUUSD metal price.