MCP Logic

MCP server providing formal logic and reasoning capabilities to AI agents. Enables agents to execute Prolog-style logical inference, validate logical constraints, perform knowledge base queries, and use formal logic for verification and reasoning tasks — extending LLM capabilities with symbolic reasoning.

Evaluated Mar 07, 2026 (0d ago) vcurrent
Homepage ↗ Repo ↗ AI & Machine Learning logic prolog reasoning mcp-server formal-methods knowledge-representation angrysky56
⚙ Agent Friendliness
74
/ 100
Can an agent use this?
🔒 Security
82
/ 100
Is it safe for agents?
⚡ Reliability
64
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
65
Documentation
65
Error Messages
62
Auth Simplicity
100
Rate Limits
92

🔒 Security

TLS Enforcement
80
Auth Strength
88
Scope Granularity
75
Dep. Hygiene
72
Secret Handling
92

Local Prolog execution. No credentials. No external access. Local code execution context.

⚡ Reliability

Uptime/SLA
65
Version Stability
65
Breaking Changes
62
Error Recovery
65
AF Security Reliability

Best When

An AI researcher or developer wants to augment LLM agents with formal logical inference — useful for applications requiring provable correctness, constraint satisfaction, or explicit knowledge representation.

Avoid When

You need general computation. Logic programming is powerful for specific reasoning tasks but not a replacement for procedural programming. Most AI tasks don't require formal logic.

Use Cases

  • Running formal logic inference for reasoning agents that need provable conclusions
  • Validating logical constraints in AI decision-making workflows
  • Knowledge base queries using predicate logic from knowledge management agents
  • Combining neural (LLM) and symbolic (logic) reasoning in hybrid AI systems

Not For

  • General-purpose programming tasks (this is specifically for logical inference)
  • Teams without logic programming expertise (Prolog has a steep learning curve)
  • Real-time applications requiring sub-millisecond inference

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

Methods: none
OAuth: No Scopes: No

No authentication — local logic engine.

Pricing

Model: free
Free tier: Yes
Requires CC: No

Free open source from angrysky56 — a developer focused on AI + formal methods integration.

Agent Metadata

Pagination
none
Idempotent
Full
Retry Guidance
Not documented

Known Gotchas

  • Logic programming paradigm differs fundamentally from procedural — agents need proper prompting for Prolog-style queries
  • Prolog inference can get stuck in infinite loops — implement query timeout guards
  • Knowledge base must be pre-loaded with facts and rules — not plug-and-play for arbitrary reasoning
  • angrysky56 focuses on AI + formal methods research — innovative but potentially experimental

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Scores are editorial opinions as of 2026-03-07.

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