Connect

8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "constants": {
      "type": "http",
      "url": "https://www.constants.io/api/mcp"
    }
  }
}

claude mcp add --transport http constants https://www.constants.io/api/mcp

[mcp_servers.constants]
url = "https://www.constants.io/api/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "constants": {
      "type": "remote",
      "url": "https://www.constants.io/api/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "constants": {
      "type": "http",
      "url": "https://www.constants.io/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=constants&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LmNvbnN0YW50cy5pby9hcGkvbWNwIn0%3D"
}

{
  "servers": {
    "constants": {
      "type": "http",
      "url": "https://www.constants.io/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "constants": {
      "httpUrl": "https://www.constants.io/api/mcp"
    }
  }
}

extensions:
  "constants":
    enabled: true
    name: "constants"
    type: streamable_http
    uri: "https://www.constants.io/api/mcp"
    timeout: 300

Quality 83 / 100good

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)

authorization83 · weight 15

pass
auth.prmProtected Resource Metadata (RFC 9728) published
pass
auth.as_metadataauthorization server metadata reachable
warn
auth.cimdonly Dynamic Client Registration, deprecated in 2026-07-28 in favour of CIMD
n/a
auth.secret_in_urlno templated URL

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

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

Tool list unknown · checked 2026-10-20 02:01 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 77 / 100

no-repository

provenance45

liveness100

freshness85

hygiene80

+website +reachable +uptime-100% ~updated-73d-ago -no-repository

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

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://www.constants.io/api/mcp` streamable-http	oauth2 AS: https://oauth.constants.io	yes	100%	438 ms	–	2026-10-19

Tools (0)

No tools observed. Tools appear once a credential-free probe can list them.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.constants-ai/constants",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "iconUrl": "https://www.constants.io/constants_icon.png",
      "tagline": "One workspace of tools for Claude and ChatGPT. Connect apps, generate video, music, and ads, and build new tools on demand. Generate and publish ad creative directly from your assistant.",
      "serverCardUrl": "https://www.constants.io/.well-known/mcp/server-card.json",
      "authentication": {
        "schemes": [
          "oauth2",
          "bearer"
        ],
        "required": true,
        "scopesSupported": [
          "mcp:read",
          "mcp:execute"
        ],
        "resourceMetadataUrl": "https://www.constants.io/.well-known/oauth-protected-resource"
      },
      "longDescription": "Constants gives Claude and ChatGPT a single connected workspace. Connect the accounts you already use across 600+ services, then ask your assistant to read your mail, update a sheet, file an issue, or generate video, images, songs, and vertical product ads — returned in the chat, no new tab. Describe a tool you need in one sentence and Constants builds it, then shares it with your team. Set it up once and the same tools, accounts, and permissions follow you across Claude, ChatGPT, Claude Code, Cursor, Codex, and Slack.",
      "documentationUrl": "https://www.constants.io/docs/mcp"
    }
  },
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.constants.io/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "2.0.0",
  "websiteUrl": "https://www.constants.io",
  "description": "One workspace of tools for Claude and ChatGPT: connect 600+ apps, generate media, build tools."
}