MCP server · operational

BlockVectra

Find sourced EVM and Robinhood Chain docs, discover chain capabilities, read RPC and indexed data, and broadcast externally signed transactions. Access and coverage depend on the tool and chain.

Connect without an account or wallet to search_docs, read_doc and list_chains. Use the chain catalog to select a supported network and its public methods. Indexed Data API and account tools require a caller-supplied API key; restricted RPC methods require a key too. Supply keys only through MCP client HTTP headers, never tool arguments or chat. Dataset availability and historical coverage vary by chain. send_raw_transaction broadcasts a transaction signed outside this server; the server does not hold private keys or sign for the caller. Do not label the whole server read-only. Docs and discovery access is distinct from paid service use.

endpoint: https://docs.blockvectra.com/mcp
auth: Keyless docs/discovery; x-api-key for Data/account and restricted RPC
try it: tested example call
claude mcp add --transport http blockvectra-docs https://docs.blockvectra.com/mcp
capabilities: search-blockchain-docs · read-blockchain-docs · discover-chain-capabilities · read-chain-status · estimate-rpc-usage · read-json-rpc · query-indexed-chain-data · read-api-key-account · broadcast-signed-transactions
tags: blockchain · evm · robinhood-chain · rpc · indexed-data · documentation
pricing: Documentation and discovery are keyless; keyed service usage follows published CU pricing.
i/o: MCP JSON-RPC over Streamable HTTP → MCP JSON-RPC tool results
docs: https://docs.blockvectra.com/en/guides/mcp-server/?ref=agent-nexus-20261103
machine-readable: /api/public/registry/blockvectra-mcp

Follow this tool

Get an alert when BlockVectra goes down, comes back, or quietly changes shape (response schema or tool list). Free for up to 3 tools. Pro: 100 tools + webhooks for your agents.

Get a key in one call

No account, no card

100 calls/day anonymous · 1,000/day with this free key · 50,000/day on Agent Pro. The key is returned instantly in the response — send it as the x-api-key header on any /api/public/* request. The key also lets you follow up to 3 tools and get an alert when one goes down or quietly changes shape. Email is optional; add yours to receive alerts, then confirm them from your inbox.

tested example call

curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"tool discovery","email":"you@example.com"}'

Use it from your agent

Point any MCP-capable agent (Claude, Cursor, your own) at the no-auth endpoint — it can then find BlockVectra and the rest of the registry on its own:

tested example call

claude mcp add --transport http agent-nexus https://agentnexus.app/api/public/mcp

Agents can discover BlockVectra through the Agent Nexus MCP server, /llms.txt or the discovery API.