Cosmic
Rank #20,222com.cosmicjs/mcp
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Cosmic is a Model Context Protocol (MCP) server published by cosmicjs. It ranks #20,222 of 137,492 servers tracked on MCP Toplist, and its repository has 1 GitHub stars. Cosmic is listed across 2 registries — Official MCP and Glama, with 1 tracked version. It was first listed on Feb 1, 2026 and most recently updated on Jul 31, 2026.
Ranks ahead of 117,270 of 137,492 servers on MCP Toplist.
Use Cosmic
Requires user-supplied configuration before first use — typically an API key, token or connection string set via environment variables.
claude mcp add --transport http cosmicjs https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7DThis endpoint requires authentication — see the server’s docs for credentials.
claude mcp add cosmicjs -e "COSMIC_BUCKET_SLUG=<your COSMIC_BUCKET_SLUG>" -e "COSMIC_READ_KEY=<your COSMIC_READ_KEY>" -e "COSMIC_WRITE_KEY=<your COSMIC_WRITE_KEY>" -- npx -y @cosmicjs/mcpReplace each placeholder with your own value before saving.
[mcp_servers.cosmicjs]
url = "https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7D"Add to ~/.codex/config.toml. This endpoint requires authentication — see the server’s docs for credentials.
[mcp_servers.cosmicjs]
command = "npx"
args = ["-y", "@cosmicjs/mcp"]
[mcp_servers.cosmicjs.env]
COSMIC_BUCKET_SLUG = "<your COSMIC_BUCKET_SLUG>"
COSMIC_READ_KEY = "<your COSMIC_READ_KEY>"
COSMIC_WRITE_KEY = "<your COSMIC_WRITE_KEY>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7DSettings → Connectors → “Add custom connector”, then paste this URL. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"cosmicjs": {
"command": "npx",
"args": [
"-y",
"@cosmicjs/mcp"
],
"env": {
"COSMIC_BUCKET_SLUG": "<your COSMIC_BUCKET_SLUG>",
"COSMIC_READ_KEY": "<your COSMIC_READ_KEY>",
"COSMIC_WRITE_KEY": "<your COSMIC_WRITE_KEY>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"cosmicjs": {
"url": "https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7D"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"cosmicjs": {
"command": "npx",
"args": [
"-y",
"@cosmicjs/mcp"
],
"env": {
"COSMIC_BUCKET_SLUG": "<your COSMIC_BUCKET_SLUG>",
"COSMIC_READ_KEY": "<your COSMIC_READ_KEY>",
"COSMIC_WRITE_KEY": "<your COSMIC_WRITE_KEY>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"cosmicjs": {
"type": "http",
"url": "https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7D"
}
}
}Save as .vscode/mcp.json in your workspace. This endpoint requires authentication — see the server’s docs for credentials.
{
"servers": {
"cosmicjs": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cosmicjs/mcp"
],
"env": {
"COSMIC_BUCKET_SLUG": "<your COSMIC_BUCKET_SLUG>",
"COSMIC_READ_KEY": "<your COSMIC_READ_KEY>",
"COSMIC_WRITE_KEY": "<your COSMIC_WRITE_KEY>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"cosmicjs": {
"serverUrl": "https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7D"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"cosmicjs": {
"command": "npx",
"args": [
"-y",
"@cosmicjs/mcp"
],
"env": {
"COSMIC_BUCKET_SLUG": "<your COSMIC_BUCKET_SLUG>",
"COSMIC_READ_KEY": "<your COSMIC_READ_KEY>",
"COSMIC_WRITE_KEY": "<your COSMIC_WRITE_KEY>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"cosmicjs": {
"url": "https://mcp.cosmicjs.com/v1/buckets/%7Bbucket_slug%7D"
}
}
}This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"cosmicjs": {
"command": "npx",
"args": [
"-y",
"@cosmicjs/mcp"
],
"env": {
"COSMIC_BUCKET_SLUG": "<your COSMIC_BUCKET_SLUG>",
"COSMIC_READ_KEY": "<your COSMIC_READ_KEY>",
"COSMIC_WRITE_KEY": "<your COSMIC_WRITE_KEY>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
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[](https://mcptoplist.com/server/com.cosmicjs%2Fmcp)<a href="https://mcptoplist.com/server/com.cosmicjs%2Fmcp"><img src="https://mcptoplist.com/badge/com.cosmicjs%2Fmcp.svg" alt="MCP Toplist: Top 25% of 137,492" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 2 registries
cosmicjs
Available versions (1)
| Version | Published |
|---|---|
| 1.6.0 | Jul 31, 2026 |
Frequently asked questions
- Who maintains Cosmic?
- Cosmic is maintained by cosmicjs, which publishes 1 MCP server (1 total version) tracked on MCP Toplist.
- Is Cosmic listed on the Official MCP Registry?
- Yes — Cosmic is listed on the Official MCP Registry, alongside Glama.
- How many versions does Cosmic have?
- MCP Toplist tracks 1 version of Cosmic, most recently published on Jul 31, 2026.
- Where can I find the source code for Cosmic?
- The source code for Cosmic is hosted at github.com/cosmicjs/mcp.
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