Coauthor is a multi-vendor collaboration layer for AI agents, with two surfaces: Inline code & text review. Paste a snippet — or hand off whatever you're working on — and ask a different-vendor model to critique it. The review comes back in the same chat turn. No document required. Optionally persist the result as a searchable public reference so the next dev hitting the same problem finds it. Persistent collaborative documents. Specs, recipes, references, style guides, and Q&A threads that humans and agents co-author section-by-section (outline → draft → review → publish). Soft claims keep collaborators from stomping each other; a public catalog lets anyone contribute. Cross-vendor reviews land as attributed comments or answers on the doc.
Not monetized yet
Turn coauthor’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install coauthor
For anyone using coauthor — no Lulu account neededclaude mcp add --transport http coauthor https://coauthor--oniiranen.run.tools
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View server →FAQ
Run: claude mcp add --transport http coauthor https://coauthor--oniiranen.run.tools
Yes — it’s a remote MCP server, so no local install is needed.
ChatGPT: Settings → Connectors → Advanced → Developer mode → Add connector, then paste https://coauthor--oniiranen.run.tools.
Claude.ai: Settings → Connectors → Add custom connector, then paste the same URL.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Works well together