| What it does | Free, open-source desktop and web app for Meta's Muse Code CLI
| Git-native platform for building, publishing, sharing, and securing APIs
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| Stage | Not given
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| Founded | Not given
| 2022
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| Based in | IN
| US
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| Pricing model | Open source
| Freemium
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| Pricing | Free, MIT licensed, no paid tier, no trial, no seats, no account. Runs on your existing Muse Code subscription.
| Free: $0 (1 seat, 1 API repository, 1 published document with badge, 1 mock server, up to 1,000 mock calls/month). Team: $216/year (3 seats included, $72 per additional seat; unlimited repositories, documents, mock servers, 20,000 mock calls/month). Enterprise: $720/year (5 seats included, $144 per
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| Key features | - Projects and sessions grouped by working directory and git worktrees
- Resume sessions including those started in the terminal TUI
- Inline diffs in the thread at the turn that produced them
- Every agent approval surfaced and never bypassed
- Cost tracking at published API rates per thread
- Full keyboard navigation with command palette
- File viewer with source, Markdown, image, video and PDF preview
- Remote daemon support for running the agent on another machine
- VS Code extension available
- Native Windows support with PowerShell
| - Git-native repository for API specifications
- Visual OpenAPI editor with live linting
- API documentation generation and publishing
- API governance with predefined and custom rule sets
- Spec-based and code-based mock servers
- Team collaboration with organizations and permissions
- CLI for linting, bundling, and publishing
- MCP server and llms.txt for AI agent integration
- GitHub Actions integration without stored secrets
- Branch and tag protection with push mirrors and webhooks
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| What makes it different | - No additional cost or billing on top of existing Muse Code subscription
- Credentials stay with the muse CLI, never stored by Helicon
- Native Windows support without requiring WSL
- MIT licensed open-source with no company behind it
- Sessions and approvals never bypassed or batched
| - Every API spec lives in a real Git repository with full version history, review workflow, and blame tracking instead of in a portal
- Open formats with no lock-in: OpenAPI and Markdown in Git, same checks run in CLI and CI
- Quality control through review: governance rule sets run in the editor and again in pull requests before reaching consumers
- CLI is free with MIT license, sends no telemetry, and works offline for linting, scoring and bundling
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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) | 11 ▼ −1 (down) since last check | 36 ● no change since last check |
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| Trust Flow (Majestic) | 14 | 11 |
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| Citation Flow (Majestic) | 27 | 20 |
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| Referring domains (Majestic) | 34 | 16 |
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Helicon
APIGit