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{
  "mcpServers": {
    "cosmicjs": {
      "command": "npx",
      "args": [
        "-y",
        "@cosmicjs/[email protected]"
      ],
      "env": {
        "COSMIC_BUCKET_SLUG": "${COSMIC_BUCKET_SLUG}",
        "COSMIC_READ_KEY": "${COSMIC_READ_KEY}",
        "COSMIC_WRITE_KEY": "${COSMIC_WRITE_KEY}"
      }
    }
  }
}

claude mcp add cosmicjs -e "COSMIC_BUCKET_SLUG=${COSMIC_BUCKET_SLUG}" -e "COSMIC_READ_KEY=${COSMIC_READ_KEY}" -e "COSMIC_WRITE_KEY=${COSMIC_WRITE_KEY}" -- npx -y @cosmicjs/[email protected]

[mcp_servers.cosmicjs]
command = "npx"
args = ["-y", "@cosmicjs/[email protected]"]
env = { "COSMIC_BUCKET_SLUG" = "${COSMIC_BUCKET_SLUG}", "COSMIC_READ_KEY" = "${COSMIC_READ_KEY}", "COSMIC_WRITE_KEY" = "${COSMIC_WRITE_KEY}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cosmicjs": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@cosmicjs/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "COSMIC_BUCKET_SLUG": "{env:COSMIC_BUCKET_SLUG}",
        "COSMIC_READ_KEY": "{env:COSMIC_READ_KEY}",
        "COSMIC_WRITE_KEY": "{env:COSMIC_WRITE_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "cosmicjs": {
      "command": "npx",
      "args": [
        "-y",
        "@cosmicjs/[email protected]"
      ],
      "env": {
        "COSMIC_BUCKET_SLUG": "${COSMIC_BUCKET_SLUG}",
        "COSMIC_READ_KEY": "${COSMIC_READ_KEY}",
        "COSMIC_WRITE_KEY": "${COSMIC_WRITE_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=cosmicjs&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBjb3NtaWNqcy9tY3BAMS42LjAiXSwiZW52Ijp7IkNPU01JQ19CVUNLRVRfU0xVRyI6IiR7Q09TTUlDX0JVQ0tFVF9TTFVHfSIsIkNPU01JQ19SRUFEX0tFWSI6IiR7Q09TTUlDX1JFQURfS0VZfSIsIkNPU01JQ19XUklURV9LRVkiOiIke0NPU01JQ19XUklURV9LRVl9In19"
}

{
  "servers": {
    "cosmicjs": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cosmicjs/[email protected]"
      ],
      "env": {
        "COSMIC_BUCKET_SLUG": "${COSMIC_BUCKET_SLUG}",
        "COSMIC_READ_KEY": "${COSMIC_READ_KEY}",
        "COSMIC_WRITE_KEY": "${COSMIC_WRITE_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "cosmicjs": {
      "command": "npx",
      "args": [
        "-y",
        "@cosmicjs/[email protected]"
      ],
      "env": {
        "COSMIC_BUCKET_SLUG": "${COSMIC_BUCKET_SLUG}",
        "COSMIC_READ_KEY": "${COSMIC_READ_KEY}",
        "COSMIC_WRITE_KEY": "${COSMIC_WRITE_KEY}"
      }
    }
  }
}

extensions:
  "cosmicjs":
    enabled: true
    name: "cosmicjs"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@cosmicjs/[email protected]"
    envs:
      "COSMIC_BUCKET_SLUG": "${COSMIC_BUCKET_SLUG}"
      "COSMIC_READ_KEY": "${COSMIC_READ_KEY}"
      "COSMIC_WRITE_KEY": "${COSMIC_WRITE_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${COSMIC_READ_KEY}, ${COSMIC_WRITE_KEY}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorization100 · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
pass
auth.secret_in_urlURL variables carry no secret

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies67 · weight 15

pass
deps.known_vulnsno known advisory in 99 resolved packages
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable@cosmicjs/[email protected] resolved: 99 packages

Tool list unknown · checked 2026-10-20 11:40 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance100

livenessn/a

freshness85

hygiene100

+repository +namespace-matches-repo +dns-namespace +website ~liveness-unmeasured ~updated-81d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@cosmicjs/[email protected] npm98 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.31.0`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://mcp.cosmicjs.com/v1/buckets/{bucket_slug}` streamable-http · templated	api_key `${COSMICJS_TOKEN}`	not probed	–	–	–	–

package	registry	version	runtime	secrets
`@cosmicjs/mcp`	npm	1.6.0	–	`COSMIC_READ_KEY`, `COSMIC_WRITE_KEY`

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.cosmicjs/mcp",
  "title": "Cosmic",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.cosmicjs.com/v1/buckets/{bucket_slug}",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "isRequired": true,
          "description": "Bearer <read_key> for reads, or Bearer <read_key>:<write_key> to allow writes"
        }
      ],
      "variables": {
        "bucket_slug": {
          "isRequired": true,
          "description": "Slug of the Cosmic bucket to operate on"
        }
      }
    }
  ],
  "version": "1.6.0",
  "packages": [
    {
      "version": "1.6.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@cosmicjs/mcp",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "COSMIC_BUCKET_SLUG",
          "isRequired": true,
          "description": "Slug of the Cosmic bucket to operate on"
        },
        {
          "name": "COSMIC_READ_KEY",
          "isSecret": true,
          "isRequired": true,
          "description": "Bucket read key. Enables the read-only tools"
        },
        {
          "name": "COSMIC_WRITE_KEY",
          "isSecret": true,
          "description": "Bucket write key. Required for create, update, delete, and AI generation"
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/cosmicjs/mcp",
    "source": "github"
  },
  "websiteUrl": "https://www.cosmicjs.com",
  "description": "Manage Cosmic CMS content, media, object types, and AI generation from any MCP client."
}