Self-host L Harness
v0.26.0LINE Official Account CRM with automation and AI integration
- Stars
- 611
What is L Harness?
L Harness is a self-hosted CRM platform designed for LINE Official Account operators. It manages friend contacts, tags, scores, and conversations while automating message delivery through step flows, broadcasts, and conditional rules. The software runs entirely on Cloudflare Workers and D1, requiring only a Cloudflare account to deploy. Users can set up LIFF forms, calendar booking, affiliate tracking, and rich menu switching without licensing fees. With its built-in MCP server, developers can control campaigns and operations directly through Claude Code or custom TypeScript SDK integrations.
Should you self-host L Harness?
L Harness scores 54/100 on selfhost.directory (how scoring works) and ranks #7 of 12 in Marketing Automation. It has 611 GitHub stars.
It shipped 10 stable releases in the past year. The latest, v0.26.0, came out on 27 October 2026. New versions land roughly every 6 days.
Setup is easy: most people get it running in one sitting. It is MIT-licensed and written mostly in Typescript.
Its closest alternative on selfhost.directory is Mautic (76/100, 10 856 stars). It scores higher overall, so compare the two before you pick. See L Harness vs Mautic side by side.
Features
- Broadcast messaging
- Duplicate Detection
- Forms (LIFF)
- Google Calendar integration
- IF-THEN automation
- MCP server support
- Multi-account Management
- Rich Menu switching
- Scoring
- Step messaging
- TypeScript SDK
- Webhook IN/OUT
L Harness README
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