Connect your Coding Agent

The Credible plugin installs the connection and the analysis skills that teach Claude how to use it. These are slash commands — type them inside a Claude Code session:

/plugin marketplace add anthropics/claude-plugins-community
/plugin install credible@claude-community

Then run /mcp and sign in to Credible.

Anthropic's community marketplace is not pre-added — only the official one is — so the first command is required, not optional.

For the connection without the skills — this one is a shell command, run in your terminal rather than inside a session:

claude mcp add --transport http credible https://mcp.credibledata.com/global/

Run these in your terminal before you start Codex. They write to Codex's config, and a session that is already running won't pick the server up until it restarts:

codex mcp add credible --url https://mcp.credibledata.com/global/
codex mcp login credible

Both write to ~/.codex/config.toml, which you can edit directly instead:

[mcp_servers.credible]
url = "https://mcp.credibledata.com/global/"
auth = "oauth"

Remote servers are first-class in current Codex. Older builds read only stdio servers and skip this one without saying so — if nothing shows up, upgrade Codex, or add this above the server entry:

[features]
experimental_use_rmcp_client = true

In the Codex IDE extension or app there is no terminal step: Settings → MCP servers → Add server → Streamable HTTP, paste the URL, save, then Authenticate.

1. Press Cmd+Shift+P (Ctrl+Shift+P on Windows/Linux) and run "Open MCP Settings"
2. Click Add MCP Server
3. Add the configuration:

{
  "mcpServers": {
    "credible": {
      "url": "https://mcp.credibledata.com/global/"
    }
  }
}

4. Save — Cursor opens the OAuth flow; complete it in your browser

Cursor marks a server as remote by the presence of url, so there is no type key here. Put the config in .cursor/mcp.json for one project, or ~/.cursor/mcp.json for every project.

1. Open the Command Palette (Cmd+Shift+P on Mac, Ctrl+Shift+P on Windows/Linux) and run "MCP: Add Server"
2. Select HTTP
3. Enter the MCP URL: https://mcp.credibledata.com/global/
4. Enter a server ID (e.g., "credible")
5. Press Enter and select "Global" or "Workspace" scoped
6. A popup redirects you to the OAuth flow — open it in your browser and complete the authentication
7. The server now shows as "Running" (with a checkbox) in the mcp.json file
8. Open Copilot to test it out

To write the config by hand, use .vscode/mcp.json for one workspace, or run "MCP: Open User Configuration" for every workspace:

{
  "servers": {
    "credible": {
      "type": "http",
      "url": "https://mcp.credibledata.com/global/"
    }
  }
}

Add the server to opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "credible": {
      "type": "remote",
      "url": "https://mcp.credibledata.com/global/",
      "enabled": true
    }
  }
}

opencode starts the sign-in flow itself the first time the server answers with a 401, and keeps the tokens for later sessions.

Install the CLI, add the server, then start gemini — it opens a browser window for sign-in:

npm install -g @google/gemini-cli
gemini mcp add -t http credible https://mcp.credibledata.com/global/
gemini

gemini mcp list confirms the server is connected.

1. In the agent window, click on the plug icon
2. Click Settings — this opens ~/.codeium/windsurf/mcp_config.json, which you can also create and edit directly
3. Add your server configuration:

{
  "mcpServers": {
    "credible": {
      "serverUrl": "https://mcp.credibledata.com/global/"
    }
  }
}

4. Save the file — this automatically opens the OAuth authentication flow
5. Complete the authentication in your browser