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Three.ws Provenance
Power your agent
Add this server
The publisher's own command. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
Local command
npx -y @three-ws/[email protected]Credentials from the publisher
- THREE_WS_BASE — Base URL of the three.ws API that serves the agent-actions ledger. Override only when self-hosting or targeting a preview deployment.
- THREE_WS_TIMEOUT_MS — Per-request timeout in milliseconds for the ledger reads/appends.
- THREE_WS_TOKEN — Bearer token authenticating every call — a three.ws API key (sk_live_…) or an OAuth access token. The ledger is owner-scoped: you can read and append actions only for agents your token owns. Required for all three tools. Treat like a password.
- THREE_WS_SIGNER_KEY — Optional 0x-prefixed EVM private key. When set, append_agent_action ERC-191-signs each action so anyone can ecrecover the signer and verify authorship on-chain. A per-call `signer_key` arg overrides it. Omit to append unsigned. Treat like cash.
Claude Code has no install link for a local command. Copy the command below and run it in a terminal.
shClaude Code
THREE_WS_BASE=<value> THREE_WS_TIMEOUT_MS=<value> THREE_WS_TOKEN=<secret> THREE_WS_SIGNER_KEY=<secret> claude mcp add io.github.nirholas-provenance-mcp -- npx -y @three-ws/provenance-mcp@0.1.3Run in a terminal.
jsonClaude Desktop
{ "mcpServers": { "io.github.nirholas-provenance-mcp": { "command": "npx", "args": [ "-y", "@three-ws/[email protected]" ], "env": { "THREE_WS_BASE": "<value>", "THREE_WS_TIMEOUT_MS": "<value>", "THREE_WS_TOKEN": "<secret>", "THREE_WS_SIGNER_KEY": "<secret>" } } }}claude_desktop_config.json
Local · npmPublisher installStep-by-step: add this in Claude
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
Host a copy with our keys and logs.
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
LaunchServer facts
Local- Transport
- stdio
- Version
Tools
Tools
No tool list yet. Remote servers get one after the first health check.
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