Chainweb API MCP

Provides AI agents with safe, auditable access to the Kadena Chainweb blockchain. It supports local simulation, pre-signed transaction sending, polling, table reads, SPV proofs, and module deployments. The server is designed to work alongside Pact Tooling to facilitate smart-contract development and interaction with Chainweb nodes without exposing private keys.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by Pact-Community-Organization

Vendor documentation

What you can do with it

Run local blockchain simulations
Submit pre-signed transactions
Read data from Chainweb tables
Generate SPV proofs

Source and maintenance

Community listingRegistry 0.2.3

mcp-registry: io.github.Pact-Community-Organization/chainweb@0.2.3 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

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

@pact-community/mcp-chainweb 0.2.3

npm

@pact-community/mcp-chainweb package definition

{
  "version": "0.2.3",
  "transport": "stdio",
  "identifier": "@pact-community/mcp-chainweb",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "PACT_COMMUNITY_WORKSPACE_ROOT",
      "format": "string",
      "isRequired": true,
      "description": "Workspace root directory; all file access is confined inside it."
    },
    {
      "name": "PACT_COMMUNITY_CHAINWEB_MODE",
      "format": "string",
      "isRequired": true,
      "description": "Network mode; must be set and match PACT_COMMUNITY_CHAINWEB_PROFILE (devnet, testnet06, or mainnet)."
    },
    {
      "name": "PACT_COMMUNITY_CHAINWEB_PROFILE",
      "format": "string",
      "description": "Network profile: devnet (default, read/write), testnet06, or mainnet (both read-only)."
    },
    {
      "name": "PACT_COMMUNITY_CHAINWEB_BASE_URL",
      "format": "string",
      "description": "Chainweb node base URL (default per profile)."
    },
    {
      "name": "PACT_COMMUNITY_CHAINWEB_NETWORK_ID",
      "format": "string",
      "description": "Network id, e.g. development, testnet06, mainnet01 (default per profile)."
    }
  ]
}

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": {
    "chainweb-api-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@pact-community/mcp-chainweb@0.2.3"
      ],
      "env": {
        "PACT_COMMUNITY_WORKSPACE_ROOT": "<YOUR_PACT_COMMUNITY_WORKSPACE_ROOT>",
        "PACT_COMMUNITY_CHAINWEB_MODE": "<YOUR_PACT_COMMUNITY_CHAINWEB_MODE>",
        "PACT_COMMUNITY_CHAINWEB_PROFILE": "<YOUR_PACT_COMMUNITY_CHAINWEB_PROFILE>",
        "PACT_COMMUNITY_CHAINWEB_BASE_URL": "<YOUR_PACT_COMMUNITY_CHAINWEB_BASE_URL>",
        "PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<YOUR_PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "chainweb-api-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@pact-community/mcp-chainweb@0.2.3"
      ],
      "env": {
        "PACT_COMMUNITY_WORKSPACE_ROOT": "<YOUR_PACT_COMMUNITY_WORKSPACE_ROOT>",
        "PACT_COMMUNITY_CHAINWEB_MODE": "<YOUR_PACT_COMMUNITY_CHAINWEB_MODE>",
        "PACT_COMMUNITY_CHAINWEB_PROFILE": "<YOUR_PACT_COMMUNITY_CHAINWEB_PROFILE>",
        "PACT_COMMUNITY_CHAINWEB_BASE_URL": "<YOUR_PACT_COMMUNITY_CHAINWEB_BASE_URL>",
        "PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<YOUR_PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
      }
    }
  }
}

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": {
    "chainweb-api-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@pact-community/mcp-chainweb@0.2.3"
      ],
      "env": {
        "PACT_COMMUNITY_WORKSPACE_ROOT": "<YOUR_PACT_COMMUNITY_WORKSPACE_ROOT>",
        "PACT_COMMUNITY_CHAINWEB_MODE": "<YOUR_PACT_COMMUNITY_CHAINWEB_MODE>",
        "PACT_COMMUNITY_CHAINWEB_PROFILE": "<YOUR_PACT_COMMUNITY_CHAINWEB_PROFILE>",
        "PACT_COMMUNITY_CHAINWEB_BASE_URL": "<YOUR_PACT_COMMUNITY_CHAINWEB_BASE_URL>",
        "PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<YOUR_PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
      }
    }
  }
}

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": {
    "chainweb-api-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@pact-community/mcp-chainweb@0.2.3"
      ],
      "env": {
        "PACT_COMMUNITY_WORKSPACE_ROOT": "<YOUR_PACT_COMMUNITY_WORKSPACE_ROOT>",
        "PACT_COMMUNITY_CHAINWEB_MODE": "<YOUR_PACT_COMMUNITY_CHAINWEB_MODE>",
        "PACT_COMMUNITY_CHAINWEB_PROFILE": "<YOUR_PACT_COMMUNITY_CHAINWEB_PROFILE>",
        "PACT_COMMUNITY_CHAINWEB_BASE_URL": "<YOUR_PACT_COMMUNITY_CHAINWEB_BASE_URL>",
        "PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<YOUR_PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
      }
    }
  }
}

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