Does Cosmic have an MCP server?
Cosmic maintains an official MCP server.
- Access
- Built into the product
- Endpoint
- mcp.cosmicjs.com/v1/buckets/<bucket_slug> — per-instance endpoint
- Package
- @cosmicjs/mcp
- Repository
- cosmicjs/mcp
- Maintainer
- Cosmic
- License
- MIT
- Language
- TypeScript
- Stars
- 1
- Last commit
- 2d ago
- Category
- Developer Tools
What it does
Cosmic is a headless CMS with a hosted MCP server, in-product AI workflows, and agent signup. An agent can read and write content, generate text, images, video, and audio into the media library, chain content, code, and browser steps, or provision a new project with no existing account.
Project site: www.cosmicjs.com
The receipts
Ships inside Cosmic's own product rather than as a standalone server. Documented at www.cosmicjs.com.
Published on npm. The package page carries the exact launch arguments and required credentials.
Cosmic is a headless CMS with a hosted MCP server, in-product AI workflows, and agent signup. An agent can read and write content, generate text, images, video, and audio into the media library, chain content, code, and browser steps, or provision a new project with no existing account.
Connect it
Ships inside the vendor's own app or CLI rather than as a standalone download.
Add it from the terminal, then restart your session:
claude mcp add cosmic -- npx -y <package-from-readme>Swap in the exact package and flags from the repo README — most servers need an API key passed as an environment variable.
Add --scope user to make it available in every project.
Open Settings → Developer → Edit Config and add the server to claude_desktop_config.json:
{
"mcpServers": {
"cosmic": {
"command": "npx",
"args": [
"-y",
"<package-from-readme>"
],
"env": {
"API_KEY": "…"
}
}
}
}Restart Claude Desktop after saving.
Add to .cursor/mcp.json in your project, or ~/.cursor/mcp.json for
every project:
{
"mcpServers": {
"cosmic": {
"command": "npx",
"args": [
"-y",
"<package-from-readme>"
],
"env": {
"API_KEY": "…"
}
}
}
}A green dot in Settings → MCP means it connected.
Add to .vscode/mcp.json:
{
"servers": {
"cosmic": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"<package-from-readme>"
]
}
}
}Then pick the server from the tools menu in Copilot's agent mode.
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Does Cosmic have an official MCP server?
Yes. Cosmic maintains an official MCP server, distributed as @cosmicjs/mcp on npm. The source lives at cosmicjs/mcp on GitHub.
How do I connect Cosmic to Claude?
Run the server locally and register it in Claude's MCP config. In Claude Code that's a single "claude mcp add" command; in Claude Desktop you add it to claude_desktop_config.json.
How is this verdict verified?
Published to the MCP Registry under Cosmic's verified namespace com.cosmicjs; the hosted per-bucket endpoint and the @cosmicjs/mcp npm package are documented at cosmicjs.com/docs/mcp-server and built in the cosmicjs/mcp repo. The hosted endpoint answers MCP initialize with 401 (bucket keys required). GitHub metadata is refreshed every six hours.
How we know
Published to the MCP Registry under Cosmic's verified namespace com.cosmicjs; the hosted per-bucket endpoint and the @cosmicjs/mcp npm package are documented at cosmicjs.com/docs/mcp-server and built in the cosmicjs/mcp repo. The hosted endpoint answers MCP initialize with 401 (bucket keys required).
- GitHub data refreshed on 2026-10-08, and again every six hours.
- Vendor docs checked by hand on 2026-09-29.
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