Jott2121/agent-gate

Overview

Agent-gate is an MCP server that enforces a fail-closed quality gate on AI agent outputs and maintains a hash-chained receipt ledger for auditability. It integrates into existing MCP-compatible agent workflows to block low-quality responses and create an immutable log of decisions.

Best for

Best for
Developers deploying MCP-based AI agents that need output quality control and an immutable audit trail

Use cases

• Blocking agent outputs that fail a predefined quality threshold
• Generating tamper-proof receipts for each agent action
• Integrating quality control and auditing into MCP-based agent pipelines

Notes

Agent-gate is an MCP server that enforces a fail-closed quality gate on AI agent outputs and maintains a hash-chained receipt ledger for auditability. It integrates into existing MCP-compatible agent workflows to block low-quality responses and create an immutable log of decisions.

1 stars on GitHub. Last updated 2026-06-11. Licensed MIT.

Use cases

• Blocking agent outputs that fail a predefined quality threshold
• Generating tamper-proof receipts for each agent action
• Integrating quality control and auditing into MCP-based agent pipelines

Pros

• Fail-closed gate prevents low-quality or unsafe outputs from reaching users
• Hash-chained ledger provides a verifiable, immutable audit trail
• Lightweight Python server that is easy to deploy and integrate

Cons

• Early-stage project with limited community and documentation
• Adds latency to agent workflows due to quality checks and ledger writes
• Requires a compatible MCP agent framework to function

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.