rubric-mcp-server 2.0.3

Post-quantum AI compliance attestation as an MCP server. Works with Claude Desktop, Claude Code, Cursor, Windsurf, Continue, Zed.

Rubric MCP Server

Post-quantum AI compliance attestation for agentic AI. Every AI decision your agent makes — attested, Merkle-rooted, HCS-anchored on Hedera mainnet.

rubric_mcp_server is an MCP (Model Context Protocol) server that exposes Rubric Protocol as 8 tools any MCP-compatible host can call: Claude Desktop, Claude Code, Cursor, Windsurf, Continue, Zed.

Drop it in, and every agent interaction becomes an auditable record — covering EU AI Act Articles 9–15, SR 11-7 model risk governance, NIST AI RMF 1.0, HIPAA, ECOA Reg B, and more.

Install

pip install rubric_mcp_server

Requires Python 3.10 or newer.

Quickstart — Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (Mac):

{
  "mcpServers": {
    "rubric": {
      "command": "rubric-mcp"
    }
  }
}

Restart Claude. Ask it to attest a decision — you are live in local mode.

For Hedera mainnet anchoring, add RUBRIC_API_KEY:

{
  "mcpServers": {
    "rubric": {
      "command": "rubric-mcp",
      "env": { "RUBRIC_API_KEY": "rubric-your-key-here" }
    }
  }
}

Request a free developer key via the register_agent tool.

Tools

Tool	Description	Key?
attest	Attest an AI decision. HCS-anchored with key; PQ-signed local leaf without.	Optional
verify	Verify an attestation by ID. Checks local store, then federation.	No
get_proof	Generate ZK Merkle inclusion proof (Noir/Barretenberg).	Yes
register_agent	Register an agent and receive a free developer API key.	No
status	Federation health across US/SG/JP/CA/EU nodes.	No
framework_detect	Auto-detect applicable regulatory frameworks from decision content (offline).	No
cost_estimate	Estimate monthly cost from expected decision volume (offline).	No
bundle_query	Query attestation bundles by leaf type, agent, or time range.	Yes (Standard+)

Environment variables

Variable	Default	Purpose
RUBRIC_API_KEY	none	Unlocks HCS anchoring + federation access.
RUBRIC_BASE_URL	https://rubric-protocol.com	Override for regional routing.
RUBRIC_AGENT_ID	mcp-agent	Default agent identity.

Pricing

• Free — local mode (PQ-signed leaves, no HCS anchoring)
• Standard — $999/mo — HCS anchoring, 100K/mo attestations
• Enterprise — $9,999/mo — unlimited throughput, W3C VCs, auditor portal
• Dedicated — $25K~/mo — private federation, custom SLA

See rubric-protocol.com/pricing.html.

Links

• Rubric Protocol
• Documentation
• TypeScript port (npm)
• Model Context Protocol

License

Proprietary. © 2026 Echelon Intelligence Group LLC. All rights reserved. Rubric Protocol® is a registered trademark of Echelon Intelligence Group LLC.