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BlockReq

by blockreq.com · remote · no sign-in to list tools · v1.0.0 · published by com.blockreq

Read-only BlockReq docs, network catalog, and JSON-RPC calls across EVM chains

Changes · 1
CompareRegistry entry

6 tools: 1 change things and 5 only read.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http rpc https://mcp.blockreq.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn1 info
  • Warncall_rpc

    The server marks "call_rpc" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}; The name "call_rpc" says "call": a word for a change.

    What this check looks for
  • Infocall_rpc

    The description mentions "credentials".

    Matched text

    description: "...N-RPC method on an EVM network. Without credentials it uses the public trial endpoint (rate..."

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Changes things 1Claude Code: ask
  • call_rpcCall one read-only JSON-RPC method on an EVM network.2 findings

    Why it is in this group

    • The name "call_rpc" says "call": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Info

      The description mentions "credentials".

      Matched text

      description: "...N-RPC method on an EVM network. Without credentials it uses the public trial endpoint (rate..."

      What this check looks for
    • Warn

      The server marks "call_rpc" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}; The name "call_rpc" says "call": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Call one read-only JSON-RPC method on an EVM network. Without credentials it uses the public trial endpoint (rate-limited, recent state only); when this MCP connection sends a BlockReq API key or is signed in to a BlockReq account, it uses the caller's own endpoint, metered to their account with their plan's limits and history. eth_getLogs needs numeric fromBlock/toBlock at most 1000 blocks apart, or a blockHash. Responses above 256 KB are refused. It cannot sign or send transactions.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Only reads 5Claude Code: allow
  • get_chainGet one network's URLs and capability flags, its API reference page, and (for EVM networks) the JSON-RPC methods documented for it.No findings

    Why it is in this group

    • The name "get_chain" says "get": a word for reading.
    Description, as the server wrote it
    Get one network's URLs and capability flags, its API reference page, and (for EVM networks) the JSON-RPC methods documented for it.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_doc_pageRead one BlockReq docs page as Markdown.No findings

    Why it is in this group

    • The name "get_doc_page" says "get": a word for reading.
    Description, as the server wrote it
    Read one BlockReq docs page as Markdown. Accepts a https://blockreq.com/docs/... URL (HTML or index.md) or a path such as /docs/getting-started/.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_method_referenceGet the documented parameters, result, example, and endpoints of one JSON-RPC method on one EVM network, from BlockReq's OpenRPC document.No findings

    Why it is in this group

    • The name "get_method_reference" says "get": a word for reading.
    Description, as the server wrote it
    Get the documented parameters, result, example, and endpoints of one JSON-RPC method on one EVM network, from BlockReq's OpenRPC document.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_chainsList every published BlockReq network with its host, public trial URL, private URL pattern ({API_KEY} placeholder), WSS support, and archive and proof/debug/trace flags.No findings

    Why it is in this group

    • The name "list_chains" says "list": a word for reading.
    Description, as the server wrote it
    List every published BlockReq network with its host, public trial URL, private URL pattern ({API_KEY} placeholder), WSS support, and archive and proof/debug/trace flags.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_docsSearch the BlockReq docs (setup, API keys, endpoints, Request Counting, plans, networks, support).No findings

    Why it is in this group

    • The name "search_docs" says "search": a word for reading.
    Description, as the server wrote it
    Search the BlockReq docs (setup, API keys, endpoints, Request Counting, plans, networks, support). Returns page titles, URLs, Markdown URLs for get_doc_page, and snippets. Chinese queries search the Chinese pages.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http rpc https://mcp.blockreq.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__rpc__list_chains",
      "mcp__rpc__get_chain",
      "mcp__rpc__search_docs",
      "mcp__rpc__get_doc_page",
      "mcp__rpc__get_method_reference"
    ],
    "ask": [
      "mcp__rpc__call_rpc"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as rpc. Review it before you use it.