Chainweb HTTP API: local sim, pre-signed send, poll, table reads, SPV proofs, module deploys.
Connect Runs on your machine
claude mcp add chainweb -e PACT_COMMUNITY_WORKSPACE_ROOT=<PACT_COMMUNITY_WORKSPACE_ROOT> -e PACT_COMMUNITY_CHAINWEB_MODE=<PACT_COMMUNITY_CHAINWEB_MODE> -e PACT_COMMUNITY_CHAINWEB_PROFILE=<PACT_COMMUNITY_CHAINWEB_PROFILE> -e PACT_COMMUNITY_CHAINWEB_BASE_URL=<PACT_COMMUNITY_CHAINWEB_BASE_URL> -e PACT_COMMUNITY_CHAINWEB_NETWORK_ID=<PACT_COMMUNITY_CHAINWEB_NETWORK_ID> -- npx -y @pact-community/[email protected]{
"mcpServers": {
"chainweb": {
"command": "npx",
"args": [
"-y",
"@pact-community/[email protected]"
],
"env": {
"PACT_COMMUNITY_WORKSPACE_ROOT": "<PACT_COMMUNITY_WORKSPACE_ROOT>",
"PACT_COMMUNITY_CHAINWEB_MODE": "<PACT_COMMUNITY_CHAINWEB_MODE>",
"PACT_COMMUNITY_CHAINWEB_PROFILE": "<PACT_COMMUNITY_CHAINWEB_PROFILE>",
"PACT_COMMUNITY_CHAINWEB_BASE_URL": "<PACT_COMMUNITY_CHAINWEB_BASE_URL>",
"PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
}
}
}
}{
"mcpServers": {
"chainweb": {
"command": "npx",
"args": [
"-y",
"@pact-community/[email protected]"
],
"env": {
"PACT_COMMUNITY_WORKSPACE_ROOT": "<PACT_COMMUNITY_WORKSPACE_ROOT>",
"PACT_COMMUNITY_CHAINWEB_MODE": "<PACT_COMMUNITY_CHAINWEB_MODE>",
"PACT_COMMUNITY_CHAINWEB_PROFILE": "<PACT_COMMUNITY_CHAINWEB_PROFILE>",
"PACT_COMMUNITY_CHAINWEB_BASE_URL": "<PACT_COMMUNITY_CHAINWEB_BASE_URL>",
"PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
}
}
}
}{
"servers": {
"chainweb": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@pact-community/[email protected]"
],
"env": {
"PACT_COMMUNITY_WORKSPACE_ROOT": "<PACT_COMMUNITY_WORKSPACE_ROOT>",
"PACT_COMMUNITY_CHAINWEB_MODE": "<PACT_COMMUNITY_CHAINWEB_MODE>",
"PACT_COMMUNITY_CHAINWEB_PROFILE": "<PACT_COMMUNITY_CHAINWEB_PROFILE>",
"PACT_COMMUNITY_CHAINWEB_BASE_URL": "<PACT_COMMUNITY_CHAINWEB_BASE_URL>",
"PACT_COMMUNITY_CHAINWEB_NETWORK_ID": "<PACT_COMMUNITY_CHAINWEB_NETWORK_ID>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
PACT_COMMUNITY_WORKSPACE_ROOTRequired | Workspace root directory; all file access is confined inside it. |
PACT_COMMUNITY_CHAINWEB_MODERequired | Network mode; must be set and match PACT_COMMUNITY_CHAINWEB_PROFILE (devnet, testnet06, or mainnet). |
PACT_COMMUNITY_CHAINWEB_PROFILEOptional | Network profile: devnet (default, read/write), testnet06, or mainnet (both read-only). |
PACT_COMMUNITY_CHAINWEB_BASE_URLOptional | Chainweb node base URL (default per profile). |
PACT_COMMUNITY_CHAINWEB_NETWORK_IDOptional | Network id, e.g. development, testnet06, mainnet01 (default per profile). |
Details
| Package | @pact-community/[email protected] (NPM, stdio) |
| First published | 3 Jul 2026 |
| Last updated | 3 Jul 2026 |
| Registry name | io.github.Pact-Community-Organization/chainweb |
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