Haskell MCP Server
MCP server providing Haskell language tooling to AI agents — enabling agents to evaluate Haskell expressions, type-check code, run GHCi REPL sessions, compile Haskell modules, and get type information. Integrates Haskell's powerful type system and functional programming capabilities into AI-assisted development workflows.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Local GHCi execution. Haskell can perform arbitrary IO — sandbox for untrusted code evaluation. No network transmission of code.
⚡ Reliability
Best When
A Haskell developer wants AI assistance with functional programming — type checking, REPL evaluation, and exploring Haskell's type system with AI-guided explanations.
Avoid When
You don't use Haskell — this is a niche tool for the small but dedicated Haskell community. Use language-specific MCPs for Python, JavaScript, etc.
Use Cases
- • Evaluating Haskell expressions and getting type information from functional programming agents
- • Running GHCi sessions for interactive Haskell development from coding agents
- • Type-checking Haskell code snippets from code review agents
- • Exploring Haskell library functions and their types from learning agents
Not For
- • Teams not using Haskell (this is a niche language-specific tool)
- • Production Haskell compilation (use GHC directly for build pipelines)
- • Non-Haskell functional programming languages (Elm, PureScript need different tools)
Interface
Authentication
No authentication — local tool. Requires GHC (Glasgow Haskell Compiler) to be installed locally.
Pricing
Free open source Haskell language tooling MCP server.
Agent Metadata
Known Gotchas
- ⚠ GHC must be installed separately — not bundled; Haskell toolchain setup is non-trivial
- ⚠ GHC compilation is slow — expect significant latency for larger code evaluation
- ⚠ Haskell type errors can be verbose and complex — agents need Haskell expertise to interpret
- ⚠ GHCi sessions are stateful — track session context carefully across multiple calls
Alternatives
Full Evaluation Report
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Scores are editorial opinions as of 2026-03-07.