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Sourcery vs FastMCP

SourceryFastMCP

Bottom line: Sourcery for python-heavy teams; FastMCP for python developers building MCP servers.

SourcerySourcery

AI code review and quality for Python and beyond

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FastMCPFastMCP

The fast, Pythonic way to build MCP servers and clients, plus optional cloud hosting.

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Votes00
PricingFreemiumFreemium
CategoryCode ReviewMcp
Tags
code-reviewcode-qualitypythonrefactoringdeveloper-tools
mcppythonframeworkopen-sourceserver-sdk
Best for
  • Python-heavy teams
  • Developers wanting in-editor quality feedback
  • Teams enforcing custom rules
  • Python developers building MCP servers
  • Teams wrapping internal services as tools
  • Prototyping MCP clients
Pros
  • Deep Python rule set (200+ built-in rules)
  • Real-time in-editor feedback across major IDEs
  • Custom rules via .sourcery.yaml
  • SOC 2 certified with zero-retention option
  • Bring-your-own-LLM support
  • Minimal-boilerplate, decorator-based API
  • Auto-generates schema, validation, and docs
  • Powers a large share of MCP servers
  • Open source and free
  • Handles transport, auth, and lifecycle
Cons
  • Rule depth outside Python is more limited
  • Smaller, seed-stage footprint than leaders
  • Pricing figures vary across sources
  • No self-hosted option noted
  • Best value skewed toward Python teams
  • Python only
  • Fast-moving API across 1.0/2.0/3.0 requires version pinning
  • Hosted FastMCP Cloud/Horizon are separate paid products
  • Relationship between the SDK-bundled version and standalone project can confuse newcomers
  • Production hardening still on the developer

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