Blockscout

About

Blockscout connects an assistant to Blockscout explorer APIs for EVM chains. It can look up blocks, transactions, addresses, ENS names, token and NFT holdings, token transfers, and verified contract code and ABIs. It can also read contract state and call raw Blockscout API endpoints for chain-specific data.

It runs as a hosted streamable-HTTP endpoint at https://mcp.blockscout.com/mcp. The endpoint accepts connections without sign-in, but the README says most data tools route through the Blockscout PRO API and need a PRO API key (prefixed proapi_) sent in a request header.

What you can do

• Look up blocks by number, hash or date
• Inspect transactions with decoded input and token transfers
• Get address balances, ENS names and contract status
• List ERC-20 token holdings and transfers for an address
• List NFTs owned by an address
• Read verified contract source, ABIs and call view functions
• Find supported chains and their chain IDs
• Call raw Blockscout API endpoints for chain-specific data

Tools 16

• __unlock_blockchain_analysis__Read-only

  Initialize a session and return reference data and the analysis skill pointer; call once first.

• get_block_infoRead-only

  Get block details such as timestamp, gas used, burnt fees and transaction count.

• get_block_numberRead-only

  Find the block number for a date/time or the latest block.

• get_address_by_ens_nameRead-only

  Resolve an ENS domain name to an Ethereum address.

• get_transactions_by_addressRead-only

  List native transfers and contract interactions for an address, excluding token transfers.

• get_token_transfers_by_addressRead-only

  List ERC-20 token transfers for an address in a time range.

• lookup_token_by_symbolRead-only

  Search token addresses by symbol or name.

• get_contract_abiRead-only

  Get the ABI of a smart contract.

• inspect_contract_codeRead-only

  Inspect a verified contract's source code or metadata.

• read_contractRead-only

  Call a contract function and return the decoded result.

• get_address_infoRead-only

  Get balance, first transaction, ENS, contract and proxy details for an address.

• get_tokens_by_addressRead-only

  Get ERC-20 holdings for an address with metadata and market data.

Read from the live server on 3 Oct 2026. Read-only, Writes and Can delete are hints the server declares; your client decides whether to ask before running a tool.

Example prompts

• Show the latest block on Ethereum Mainnet and its gas used.

• What ERC-20 tokens does vitalik.eth hold?

• Explain what happens in transaction 0x... on Base.

• Get the ABI of this verified contract on Optimism.

Set up

Every client connects to mcp.blockscout.com. Pick yours; the page remembers your choice.

claude mcp add --transport http blockscout https://mcp.blockscout.com/mcp

https://mcp.blockscout.com/mcp

{
  "mcpServers": {
    "blockscout": {
      "url": "https://mcp.blockscout.com/mcp"
    }
  }
}

code --add-mcp '{"name":"blockscout","type":"http","url":"https://mcp.blockscout.com/mcp"}'

{
  "servers": {
    "blockscout": {
      "type": "http",
      "url": "https://mcp.blockscout.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "blockscout": {
      "serverUrl": "https://mcp.blockscout.com/mcp"
    }
  }
}

codex mcp add blockscout --url https://mcp.blockscout.com/mcp

[mcp_servers.blockscout]
url = "https://mcp.blockscout.com/mcp"

gemini mcp add --transport http blockscout https://mcp.blockscout.com/mcp

{
  "mcpServers": {
    "blockscout": {
      "type": "http",
      "url": "https://mcp.blockscout.com/mcp"
    }
  }
}

FAQ

Embed

Show Blockscout in a README or on your site. Each embed links to this page, uses the server’s own URL, and sets no cookies. How embeds work

README badge Website card iframe JSON

README badge

Markdown

[![Blockscout on mcp.tc](https://mcp.tc/i/blockscout/badge.svg)](https://mcp.tc/i/blockscout)

HTML

<a href="https://mcp.tc/i/blockscout"><img src="https://mcp.tc/i/blockscout/badge.svg" alt="Blockscout on mcp.tc" height="20"></a>

It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.

Website card

HTML

<script src="https://mcp.tc/w/blockscout.js" async></script>

The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.

iframe

HTML

<iframe src="https://mcp.tc/embed/blockscout" title="Blockscout on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.

JSON

The listing as data for your own pages and tools: name, tagline, the server’s own URL, tools and the “Add to” links. Any site can read it (CORS is open).

https://mcp.tc/i/blockscout.json

What each field means