Google Gemini setup guide
Connect Google Gemini to ClawCall with remote MCP
In Gemini Spark, add ClawCall as a custom Connected App with the MCP URL, then sign in. This works where Spark custom apps are available; regular Gemini chat does not offer it.
https://api.clawcall.dev/mcp- Setup surface
- Gemini Spark custom Connected App
- Transport
- Remote MCP URL
- Authentication
- OAuth discovery and DCR
Before you start
- A personal Google account with access to Gemini Spark custom Connected Apps.
- A ClawCall account.
- A real US destination in +1 E.164 format for any call you choose to place.
- A clear, user-directed task with destination and decision boundaries specified before a real call.
Connect Google Gemini to ClawCall
Confirm Gemini Spark eligibility
Use a personal account and confirm the custom-app feature is available for your country, language, age, and account. Managed workspaces can expose different controls.
Open Connected Apps
In the Gemini web app, open Connected Apps settings and choose the control to add a custom app.
Enter the ClawCall MCP URL
Name the app ClawCall and enter
https://api.clawcall.dev/mcp. The endpoint already follows the remote MCP contract Google requests.https://api.clawcall.dev/mcpKeep dynamic registration
Leave Advanced features closed. Google says those fields are for servers without Dynamic Client Registration, and ClawCall supports DCR and OAuth discovery.
Sign in and approve scopes
Complete ClawCall sign-in, review
calls:readandcalls:write, and approve only if you trust the account and task.Or use Gemini CLI
Gemini CLI supports Streamable HTTP, automatic OAuth discovery, and Dynamic Client Registration. Add ClawCall under
mcpServerswithhttpUrl, run/mcp auth clawcall, and settrustto true.{ "mcpServers": { "clawcall": { "httpUrl": "https://api.clawcall.dev/mcp", "trust": true } } }
OAuth scopes and host permissions
Google Gemini signs in with OAuth and asks for two scopes: calls:read to read account and call state, and calls:write to place or hang up calls and change call settings. It gets revocable tokens, never your ClawCall API key.
Recommended: trust ClawCall where Gemini allows it
Gemini Spark asks you to confirm each write action, and that cannot be turned off. In Gemini CLI, set trust to true for the uninterrupted workflow ClawCall recommends, the CLI’s equivalent of Always allow.
Trust only skips the repeated approval prompts. It does not widen the two OAuth scopes, override host policy, or allow bulk or automated calling.
Verify read-only, then place one controlled call
Check account state first. Only after that succeeds, place the first real call to a number you control.
Check my ClawCall plan and remaining trial allowance. Do not place a call.
Using ClawCall, call my phone at +1XXXXXXXXXX. Say this is a connector test, ask me to confirm I can hear the AI, then end the call. Show me any transcript evidence actually captured afterward.
Tools and troubleshooting
ClawCall gives Google Gemini 11 tools: read tools for the calling guide, your plan, settings, calls, transcripts, and recordings, and write tools that place, wait on, or hang up a call and update settings. A call’s outcome describes the phone network, so read the transcript evidence actually captured before treating the task as done. The remote MCP reference lists every tool and scope.
If no tools appear, check that the server URL ends in /mcp. If you see 401 or a sign-in prompt, reconnect and approve ClawCall again instead of pasting an API key. For anything else, see troubleshooting in the docs.
Disconnect and revoke access
- Disconnect or remove ClawCall in Google Gemini.
- Open ClawCall Dashboard → Settings → Connected AI assistants → Disconnect to revoke its OAuth tokens.
FAQ
- Do I need to choose ClawCall before every request?
- No. Once the connection is enabled, the agent can pick ClawCall automatically when an ordinary request needs a phone call. Naming the tool is optional and mainly useful for troubleshooting.
- What does it cost?
- The ClawCall trial includes 30 calls and 30 minutes, whichever lasts later. After that, a paid plan covers ongoing calls. The host itself may need its own plan for plugins or connectors.
- Does a successful network outcome prove the task succeeded?
- No. A network outcome describes the call path. Read the transcript evidence actually captured before claiming a reservation, cancellation, price, or other real-world task was completed.
- How do I revoke access?
- Remove or disconnect ClawCall in the host, then open ClawCall Dashboard → Settings → Connected AI assistants → Disconnect to revoke that connection’s tokens.
- How long does ClawCall keep transcripts and recordings?
- ClawCall deletes transcripts 7 days after a call ends and recordings 10 minutes after a call ends. Recording URLs are temporary and cannot be renewed after they expire.
Sources
Setup steps come from Google Gemini’s own documentation and ClawCall’s product documentation, checked on the dates below.
- Google: Connect a custom app to Gemini Spark with MCP
- Google: Gemini CLI MCP servers
- Andreessen Horowitz: Top 100 Gen AI Consumer Apps, 6th edition
- ClawCall: Hosted MCP for AI agents
- ClawCall security
Related pages
Give Google Gemini a phone line
Create a ClawCall account, add the endpoint, and start with the read-only check. The trial includes 30 calls and 30 minutes, whichever lasts later.