The Model Context Protocol (MCP) is an open protocol designed to allow AI agents, IDEs, and automation tools to consume, query, and analyze
Blockscout MCP MCP server exists for a simple reason — assistants are far more useful when they can act on Blockscout MCP directly instead of describing what you should do. The Model Context Protocol (MCP) is an open protocol designed to allow AI agents, IDEs, and automation tools to consume, query, and analyze structured data through context-aware APIs.
Once Blockscout MCP is connected, these are the calls the assistant has available:
Installation — Visit claude.com/connectors/blockscout and click links in "Used in" section to install the BlockscoutYou will need 5 environment variables: BLOCKSCOUT_PRO_API_KEY, BLOCKSCOUT_DEV_JSON_RESPONSE, BLOCKSCOUT_MCP_ALLOWED_HOSTS, BLOCKSCOUT_MCP_ALLOWED_ORIGINS, BLOCKSCOUT_DISABLE_COMMUNITY_TELEMETRY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Blockscout MCP's toolset — Installation — is a fair guide to whether it matches your workflow. It is maintained by blockscout; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| Installation | Visit [claude.com/connectors/blockscout](https://claude.com/connectors/blockscout) and click links in "Used in" section to install the Blockscout connector. |
{
"mcpServers": {
"blockscout": {
"command": "docker",
"args": [
"run",
"--rm",
"-i",
"sparfenyuk/mcp-proxy:latest",
"--transport",
"streamablehttp",
"--headers",
"Blockscout-MCP-Pro-Api-Key",
"proapi_your_key_here",
"--headers",
"Blockscout-MCP-Intermediary",
"ClaudeDesktop",
"https://mcp.blockscout.com/mcp"
]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| BLOCKSCOUT_PRO_API_KEY | Credential the server authenticates with. | Yes |
| BLOCKSCOUT_DEV_JSON_RESPONSE | Configuration value read at startup. | Optional |
| BLOCKSCOUT_MCP_ALLOWED_HOSTS | Endpoint or connection string the server talks to. | Optional |
| BLOCKSCOUT_MCP_ALLOWED_ORIGINS | Configuration value read at startup. | Optional |
| BLOCKSCOUT_DISABLE_COMMUNITY_TELEMETRY | Configuration value read at startup. | Optional |
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
GitHub's official server — repos, issues, pull requests, Actions and code security, straight from your assistant.
Issue tracking at the speed of conversation — Linear's official hosted server with OAuth and zero install.
Local repository surgery — status, diffs, commits, branches and history for any repo on disk.
Timezone sanity for AI — current time anywhere and correct conversions, without the model doing date math.