BlockReq
Read-only BlockReq docs, network catalog, and JSON-RPC calls across EVM chains
Should I use this
Quality & Safety
Findings (4)
- HIGHTool poisoning patterns detected
- MEDIUMTool 'list_chains' description contains placeholder textin list_chains
- MEDIUMTool description contains URL to non-standard domainin get_doc_page
- INFOTool description contains placeholder or incomplete textin list_chains
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"rpc": {
"url": "https://mcp.blockreq.com/mcp"
}
}
}Remote endpoints
https://mcp.blockreq.com/mcpstreamable-httphttps://mcp.blockreq.com/mcp/accountstreamable-httpWhat it can do
Tool inventory
Tools (6)
🟢list_chains(network_type)
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.
Input Schema
{
"type": "object",
"properties": {
"network_type": {
"type": "string",
"enum": [
"mainnet",
"testnet",
"beacon"
],
"description": "Only this network type"
}
},
"additionalProperties": false
}🟢get_chain(chain)
Get one network's URLs and capability flags, its API reference page, and (for EVM networks) the JSON-RPC methods documented for it.
Input Schema
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Network slug (for example ethereum, base, arbitrum-sepolia), catalog id, hostname, name, or EVM chain ID (1 or 0x1)"
}
},
"required": [
"chain"
],
"additionalProperties": false
}🟢search_docs(query, locale, limit)
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.
Input Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"minLength": 1,
"maxLength": 200,
"description": "Words to search for"
},
"locale": {
"type": "string",
"enum": [
"en",
"zh-cn"
],
"description": "Docs language; defaults to the query's language"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 10,
"description": "Most results to return (default 5)"
}
},
"required": [
"query"
],
"additionalProperties": false
}🟢get_doc_page(url)
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/.
Input Schema
{
"type": "object",
"properties": {
"url": {
"type": "string",
"minLength": 1,
"maxLength": 300,
"description": "Docs page URL or path"
}
},
"required": [
"url"
],
"additionalProperties": false
}🟢get_method_reference(chain, method)
Get the documented parameters, result, example, and endpoints of one JSON-RPC method on one EVM network, from BlockReq's OpenRPC document.
Input Schema
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Network slug (for example ethereum, base, arbitrum-sepolia), catalog id, hostname, name, or EVM chain ID (1 or 0x1)"
},
"method": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "JSON-RPC method, for example eth_getLogs"
}
},
"required": [
"chain",
"method"
],
"additionalProperties": false
}🟢call_rpc(chain, method, params)
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.
Input Schema
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Network slug (for example ethereum, base, arbitrum-sepolia), catalog id, hostname, name, or EVM chain ID (1 or 0x1)"
},
"method": {
"type": "string",
"enum": [
"eth_blockNumber",
"eth_chainId",
"eth_getBalance",
"eth_call",
"eth_getLogs",
"eth_getTransactionByHash",
"eth_getTransactionReceipt",
"eth_getCode",
"eth_getStorageAt",
"eth_getBlockByNumber"
]
},
"params": {
"type": "array",
"description": "Positional JSON-RPC params; a missing block parameter means latest"
}
},
"required": [
"chain",
"method"
],
"additionalProperties": false
}Community
Evidence