Koskamo

Secondlayer MCP

An official MCP server by Secondlayer that provides agents with live access to Stacks chain data, including indexing, streaming, subgraph management, and webhook configuration for building on Bitcoin and Stacks.

Visit Secondlayer

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Secondlayer MCP logo, by SecondlayerVendor evidenceLocal stdioSource reviewed; not executedOperated by Secondlayer
You need:get an account key (sk-sl_*) at https://www.secondlayer.tools/signin
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Official MCP Registry namespace is tied to secondlayer.tools ·

What you can do with it

  • Index Stacks and Runes data from genesis
  • Stream new chain events as they land
  • Deploy and manage subgraphs in Postgres
  • Create webhooks to react to chain events

Source and maintenance

Vendor evidenceRegistry 11.2.4
mcp-registry: tools.secondlayer/secondlayer@11.2.4Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@secondlayer/mcp 11.2.4

npm
@secondlayer/mcp package definition
{
  "version": "11.2.4",
  "transport": "stdio",
  "identifier": "@secondlayer/mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "SECONDLAYER_API_KEY",
      "format": "string",
      "description": "Account API key (sk-sl_*) for the hosted API: credits, writes."
    },
    {
      "name": "SECONDLAYER_API_URL",
      "format": "string",
      "default": "http://127.0.0.1:3800",
      "description": "Instance API URL. Use https://api.secondlayer.tools for hosted."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "secondlayer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@secondlayer/mcp@11.2.4"
      ],
      "env": {
        "SECONDLAYER_API_KEY": "<YOUR_SECONDLAYER_API_KEY>",
        "SECONDLAYER_API_URL": "<YOUR_SECONDLAYER_API_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "secondlayer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@secondlayer/mcp@11.2.4"
      ],
      "env": {
        "SECONDLAYER_API_KEY": "<YOUR_SECONDLAYER_API_KEY>",
        "SECONDLAYER_API_URL": "<YOUR_SECONDLAYER_API_URL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "secondlayer-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@secondlayer/mcp@11.2.4"
      ],
      "env": {
        "SECONDLAYER_API_KEY": "<YOUR_SECONDLAYER_API_KEY>",
        "SECONDLAYER_API_URL": "<YOUR_SECONDLAYER_API_URL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "secondlayer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@secondlayer/mcp@11.2.4"
      ],
      "env": {
        "SECONDLAYER_API_KEY": "<YOUR_SECONDLAYER_API_KEY>",
        "SECONDLAYER_API_URL": "<YOUR_SECONDLAYER_API_URL>"
      }
    }
  }
}

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