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Moxie Docs vs Swimm

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Moxie Docs publishes a starting price ($29); Swimm does not. Only Moxie Docs has a free tier. Only Moxie Docs ships a public API.

Moxie DocsAuto-generates and maintains GitHub repo documentation, and serves it to AI coding agents over MCP.SwimmStatic analysis plus AI that reads legacy code and writes the documentation and diagrams a migration team needs.

Side by side

FactMoxie DocsSwimm
CategoryDocumentation GeneratorsDocumentation Generators
Pricing modelFreemiumContact
Starts at$29 month—
Public APIYesNo
PlatformsWeb, APIWeb, Vscode Ext
Companyjackalope.digitalSwimm
Launched—2019
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

Moxie Docs

Moxie Docs treats documentation as something to keep synced automatically rather than written once and left to rot - it watches for drift and proposes fixes as reviewable PRs instead of auto-committing, and exposes the same context to AI coding agents via MCP. The free tier is real (one full repo, no card) but multi-repo teams will hit the paid tiers quickly.

Pros

  • Detects documentation drift and proposes fixes as PRs rather than silently rewriting docs
  • Ships an MCP server so AI coding agents get the same verified context
  • Free tier is fully functional on one repository with no credit card

Cons

  • Repository caps scale with price, so multi-repo orgs pay up quickly
  • GitHub App has read-only access, so it cannot act without a human merging PRs
  • Built by a small independent studio rather than a larger team, per its own site

Swimm

Swimm is the rare documentation tool that treats old code as the source of truth instead of asking humans to describe it. If you are staring at a COBOL or .NET estate nobody understands, the flow maps and extracted business rules are the useful part. The catch is that it is no longer a tool you can simply buy: it is a staged engagement with engineers attached, and the self-serve documentation product it was known for is not what the site sells today.

Pros

  • Deterministic static analysis backs the AI output, so traces come from the code rather than a guess
  • Produces diagrams and flow maps, not only prose
  • Covers mainframe and COBOL alongside .NET and Java
  • Work is broken into fixed-price stages you can stop after

Cons

  • No pricing published anywhere on the site
  • Repositioned away from the continuous-documentation product it was known for
  • Aimed at large estates, which makes it overkill for a normal repository

Which one fits

Choose Moxie Docs if you need

  • Teams with multiple repositories or microservices whose docs drift from the code
  • Teams already using AI coding agents that need accurate codebase context via MCP

Choose Swimm if you need

  • Teams documenting a mainframe or legacy .NET/Java estate before a migration
  • Architects who need job-flow and variable traces out of unfamiliar code
  • Enterprises that want non-engineers to read what the code actually does

More comparisons

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