| What it does | Your docs, updated the moment code merges.
| Python framework for building and simulating dynamical systems using block diagrams
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| Stage | MVP
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| Founded | Not given
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| Pricing model | Freemium
| Open source
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| Pricing | Free: for public repos (unlimited). Team: $49/month with 200 credits/month. Growth: $149/month with 700 credits/month. Docs PRs use 1–4 credits depending on quality preset (Fast ~1, Balanced ~2, Best ~4); 2 credits with own model key. Credit packs: 100 credits $29, 400 credits $99 (one-time, never e
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| Key features | - Reads merged PRs and linked tickets to understand changes
- Identifies affected documentation pages with reasons
- Makes minimal targeted edits to documentation
- Runs build, lint, link checks and OpenAPI validation
- Opens pull requests for team review and merge
- Automatic code sample generation and validation
- Integrates with Jira, GitHub Issues and Slack
- Configurable quality presets (Fast, Balanced, Best)
- Dry-run backfill of last 5 merges without charges
- Nightly drift scan to detect outdated documentation
| - 30+ solvers including implicit, explicit, and adaptive integrators
- Zero-crossing detection and scheduled events for hybrid systems
- Hot-swappable blocks and solvers during active simulation
- Hierarchical subsystems for modular component design
- MIMO support with multiple input and output ports
- Browser-based visual editor with PathView
- Domain toolboxes for chemical, battery, vehicle, flight, and RF engineering
- Custom blocks through subclassing the base Block class
- Supports continuous-time, discrete-time, and hybrid systems
- FMI integration to wrap Co-Simulation and Model-Exchange FMUs
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| What makes it different | - Deterministic signals first, not just AI guessing at semantic similarity
- Your team reviews every change; DocFit never merges directly
- Usage-based pricing with no per-seat fees
- Works with your existing docs platform and GitHub workflow
- Comprehensive verification before PR creation
| - Readable, scriptable alternative to traditional simulation tools with solver depth
- Full ecosystem including FastSim Rust engine and standalone C code generation
- Minimal runtime dependencies: only numpy, scipy, and matplotlib
- Domain-specific toolboxes for chemical, battery, vehicle, flight, and RF engineering
- MIT license with open source development
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 38 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 0 | 6 |
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| Citation Flow (Majestic) | 0 | 14 |
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| Referring domains (Majestic) | 0 | 18 |
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DocFit