The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Blocksize Agentic Market Intelligence listing page.
Institutional-grade market data for AI agents, with three integration surfaces:
https://blocksize.info/?utm_source=agentic-widget&utm_medium=aihttps://mcp.blocksize.info/https://mcp.blocksize.info/mcp/server/https://mcp.blocksize.info/anthropic/mcp/https://mcp.blocksize.info/claude-connectorhttps://mcp.blocksize.info/mcp/manifest.jsonhttps://mcp.blocksize.info/openapi.jsonhttps://mcp.blocksize.info/docshttps://mcp.blocksize.info/quickstart/remote-mcphttps://mcp.blocksize.info/quickstart/first-pricehttps://mcp.blocksize.info/prompt-exampleshttps://mcp.blocksize.info/privacyhttps://mcp.blocksize.info/supporthttps://mcp.blocksize.info/server.jsonhttps://mcp.blocksize.info/llms.txthttps://mcp.blocksize.info/sitemap.xmlhttps://mcp.blocksize.info/robots.txthttps://mcp.blocksize.info/data-packages.jsonhttps://mcp.blocksize.info/category-hubs.jsonhttps://mcp.blocksize.info/rwa-market-datahttps://mcp.blocksize.info/market-data-licensinghttps://mcp.blocksize.info/signed-oracle-feedsBlocksize is optimized to be found for high-intent searches around real-time price data, market data APIs for AI agents, x402-paid data, and MCP market data discovery.
Canonical intent pages:
https://mcp.blocksize.info/rwa-market-datahttps://mcp.blocksize.info/market-data-licensinghttps://mcp.blocksize.info/signed-oracle-feedshttps://mcp.blocksize.info/market-data-api-for-ai-agentshttps://mcp.blocksize.info/real-time-price-data-apihttps://mcp.blocksize.info/crypto-vwap-apihttps://mcp.blocksize.info/bid-ask-price-apihttps://mcp.blocksize.info/fx-rates-apihttps://mcp.blocksize.info/metals-price-apihttps://mcp.blocksize.info/x402-market-data-apihttps://mcp.blocksize.info/mcp-market-data-serverhttps://mcp.blocksize.info/accountless-market-data-apihttps://mcp.blocksize.info/price-data-api-exampleshttps://mcp.blocksize.info/market-data-api-comparisonhttps://mcp.blocksize.info/crypto-market-data-api-alternativeshttps://mcp.blocksize.info/oracle-data-api-for-ai-agentsRecommended repository topics and listing keywords:
market-data, price-data, real-time-data, mcp, ai-agents, x402, crypto-vwap, bid-ask, fx-rates, metals-api, agentic-payments
Indexing checklist:
https://mcp.blocksize.info/sitemap.xml in Google Search Console and Bing Webmaster Tools.server.json, llms.txt, OpenAPI JSON, and data-packages.json as the canonical machine-readable citations in marketplaces, docs, and repo descriptions.category-hubs.json for dated coverage states, rights boundaries, methodology, and citation instructions. Cataloged, candidate, and production-promoted coverage are intentionally separate states.RWA claims boundary:
The remote MCP server is meant for directory listings and fast evaluation in ChatGPT Developer Mode, Cursor, Claude MCP clients, Smithery, Glama, and other Streamable HTTP clients.
It exposes only read-only discovery tools:
search_pairslist_instrumentsget_pricing_infoget_product_catalogrecommend_account_planget_workflow_endpointget_market_data_endpointsearchfetchThis public surface does not execute paid live market data calls directly.
The paid HTTP API is the production data path for live access:
GET /v1/vwap/{pair}GET /v1/bidask/{pair}GET /v1/fx/{pair}GET /v1/metal/{ticker}GET /v1/batchFree discovery endpoints:
GET /v1/coverageGET /v1/searchGET /v1/instruments/{service}GET /v1/samples/market-data?service=vwap&symbol=BTCUSD for a clearly
synthetic value preview and attributed paid handoffGET /health/v1/search is paginated with limit and offset. Its total_matches
field is the full match count for the searched catalogs; the default 50 is
only the response page size and is unrelated to starter credits.
Payment modes:
PAYMENT-SIGNATURENew eligible authenticated users receive 15,000 free live data credits every
calendar month (UTC), positioned as Start with 15,000 free live-data credits every month. The allowance is an evaluation and prototyping licence with
required attribution; production commercial use requires a subscription. The
number is configured once in FREE_TIER_MONTHLY_CREDITS (src/config.py) and
every surface renders it from there. Raw caller-selected HTTP identity headers
are disabled in production and cannot claim or spend credits. When the monthly
allowance is exhausted, agents can use direct x402 payment, start a subscription
trial at /go/free-trial (plans from EUR 49/month, see /go/pricing), or
contact Blocksize sales about an Enterprise authenticated account plan.
The Anthropic-safe MCP surface is mounted at /anthropic/mcp/ and exposes
read-only tools only:
search_pairslist_instrumentsget_credit_balanceget_vwapget_bid_askget_fx_rateget_metal_priceLive market data tools use server-side free-tier credits keyed to authenticated
user identity. The allowance is 15,000 credits per verified identity per
calendar month (UTC), set by FREE_TIER_MONTHLY_CREDITS and shared by the
Claude, Cursor, and OpenAI connectors. The legacy ANTHROPIC_DAILY_CREDITS,
CURSOR_DAILY_CREDITS, and OPENAI_DAILY_CREDITS variables are ignored;
per-user entitlement overrides for subscribers still apply.
For local beta testing, set ANTHROPIC_ENABLE_BETA_TOKENS=true and
ANTHROPIC_BETA_TOKENS to a JSON object mapping random bearer tokens to user
ids. For public Claude custom connectors, set
ANTHROPIC_AUTH_PROVIDER=clerk, keep ANTHROPIC_ENABLE_BETA_TOKENS=false, and
configure the Clerk env vars in
.env.example.
The Claude OAuth metadata endpoints are served at
/.well-known/oauth-protected-resource/anthropic/mcp/ and
/.well-known/oauth-authorization-server/anthropic/mcp.
For builders who want the full tool surface inside a local MCP client, this repo also contains the advanced local MCP server in src/mcp_server.py.
That mode is intended for direct builder integrations and requires local credentials.
Use GET /v1/coverage for current source-backed counts and qualification
boundaries. The response separates enabled live discovery namespaces,
decision-grade canonical RWA identities, and research/manual-verification
coverage. Namespace and venue-row counts overlap and must not be summed as a
unique-instrument total.
Run the HTTP server:
Run the advanced local MCP server:
MIT