Chainweb API MCP Server

io.github.Pact-Community-Organization/chainweb

Repository Registry

What is the Chainweb API MCP server?

Chainweb HTTP API: local sim, pre-signed send, poll, table reads, SPV proofs, module deploys.

How to install Chainweb API

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

PACT_COMMUNITY_WORKSPACE_ROOT
required
Workspace root directory; all file access is confined inside it.
PACT_COMMUNITY_CHAINWEB_MODE
required
Network mode; must be set and match PACT_COMMUNITY_CHAINWEB_PROFILE (devnet, testnet06, or mainnet).
PACT_COMMUNITY_CHAINWEB_PROFILE
Network profile: devnet (default, read/write), testnet06, or mainnet (both read-only).
PACT_COMMUNITY_CHAINWEB_BASE_URL
Chainweb node base URL (default per profile).
PACT_COMMUNITY_CHAINWEB_NETWORK_ID
Network id, e.g. development, testnet06, mainnet01 (default per profile).

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "chainweb": {
      "command": "npx",
      "args": [
        "-y",
        "@pact-community/mcp-chainweb"
      ],
      "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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