---
title: "Connect Google Contacts and Langfuse - APIANT.ai"
description: "When \"New Contact\" fires in Google Contacts, your agent runs \"Add Comment\" in Langfuse."
canonical: "https://apiant.ai/connect/google-contacts-to-langfuse"
---

# Connect Google Contacts and Langfuse

When **New Contact** fires in [Google Contacts](https://apiant.ai/connections/google-contacts), your agent runs **Add Comment** in [Langfuse](https://apiant.ai/connections/langfuse), or **New Trace** in Langfuse to **Add Contact to Group** in Google Contacts. Describe the whole flow and it is built, tested on every scenario and kept running.

Google Contacts **3** triggers Google Contacts **7** actions Langfuse **1** trigger Langfuse **14** actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

## What do you want Google Contacts and Langfuse to do together?

Give your AI client this address.

`https://mcp.apiant.ai`

One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

### Set it up in your client

### Claude Code

Run this in the directory you want to work in.

`claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai`

Start Claude Code there, approve the server, and sign in in the browser page it opens.

[Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code)

### Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

Example flows

## What Google Contacts and Langfuse can do together

### From Google Contacts to Langfuse

- When **New Contact** in Google Contacts then **Add Comment** in Langfuse
- When **New Group** in Google Contacts then **Add Dataset Item** in Langfuse

### From Langfuse to Google Contacts

- When **New Trace** in Langfuse then **Add Contact to Group** in Google Contacts
- When **New Trace** in Langfuse then **Create Contact** in Google Contacts

Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.

Everything your agent can do with Google Contacts and Langfuse

## Triggers and actions 4 triggers · 21 actions

- Trigger

**New Contact**

Triggers when a new contact is added to Google Contacts.

- Trigger

**New Group**

Triggers when a new contact group (label) is created in Google Contacts.

- Trigger

**New or Updated Contact**

Triggers when a contact is added to Google Contacts or an existing contact is changed.

- Action

**Add Contact to Group**

Adds an existing contact to a contact group (label).

- Action

**Create Contact**

Creates a new contact in Google Contacts with a name, email address, phone number, company and notes.

- Action

**Create Group**

Creates a new contact group (label) in Google Contacts.

- Action

**Delete Contact**

Permanently deletes a contact from Google Contacts.

- Action

**Find Contact**

Finds contacts whose name, email address, phone number or company matches the search text.

- Action

**Get Contact**

Returns a contact's name, email addresses, phone numbers, company, notes and group memberships.

- Action

**Update Contact**

Updates an existing Google contact's name, email address, phone number, company or notes; fields left blank are kept.

- Trigger

**New Trace**

Polling trigger: fires for newly created traces (dedup by trace id / timestamp).

- Action

**Add Comment**

Add a comment to a trace/observation/session/prompt object.

- Action

**Add Dataset**

Create a new dataset.

- Action

**Add Dataset Item**

Create an item (input/expected_output/metadata) in a dataset.

- Action

**Add Prompt**

Create a new prompt version (text or chat).

- Action

**Add Score**

Create a score attached to a trace/observation/session (numeric, categorical, or boolean).

- Action

**Delete Trace**

Delete a trace by id.

- Action

**Get Project**

Reads the Langfuse project that the connection's project-scoped API key belongs to.

- Action

**Get Prompt**

Get a prompt by name (and optional version/label).

- Action

**Get Trace**

Get a single trace by id, including nested observations/scores.

- Action

**List Dataset Items**

List items in a dataset.

- Action

**List Datasets**

List all datasets in the project.

- Action

**List Prompts**

List all prompts in the project.

- Action

**List Scores**

List scores with optional filters.

- Action

**List Traces**

List traces with optional filters (user, session, tags, timerange).

## Each app on its own

- [ **Google Contacts** Google Contacts, the address book built into Gmail, lets you keep track of all your contacts, see when you...](https://apiant.ai/connections/google-contacts)
- [ **Langfuse** Langfuse is an open-source LLM engineering platform (GitHub) that helps teams collaboratively debug...](https://apiant.ai/connections/langfuse)

Reviews

## What our customers say

## More from Google Contacts

- [ **Google Contacts to ElevenLabs** ElevenLabs is an AI audio research and deployment company.](https://apiant.ai/connect/google-contacts-to-elevenlabs)
- [ **Google Contacts to no2bounce** Catch-all and Risky Email Validation Instant Results to Enhance Email Deliverability](https://apiant.ai/connect/google-contacts-to-no2bounce)
- [ **Google Contacts to Twenty** Twenty is a modern Open-Source CRM platform.](https://apiant.ai/connect/google-contacts-to-twenty)
- [ **Google Contacts to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/google-contacts-to-hubspot)
- [ **Google Contacts to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/google-contacts-to-salesforce)
- [ **Google Contacts to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/google-contacts-to-slack)

## More into Langfuse

- [ **Salesforce to Langfuse** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-langfuse)
- [ **Google Drive to Langfuse** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-langfuse)
- [ **HubSpot to Langfuse** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-langfuse)
- [ **Slack to Langfuse** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-langfuse)
- [ **Google Sheets to Langfuse** Google Sheets](https://apiant.ai/connect/google-sheets-to-langfuse)
- [ **Gmail to Langfuse** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-langfuse)

Questions

## Google Contacts and Langfuse, answered

###

### What can start an automation from Google Contacts?

Any of Google Contacts's 3 triggers in the catalog, including New Contact, New Group and New or Updated Contact. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in Langfuse when something happens in Google Contacts?

Any of Langfuse's 14 actions, including Add Comment, Add Dataset, Add Dataset Item and Add Prompt. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from Langfuse to Google Contacts?

Yes. When something happens in Langfuse, your agent can act in Google Contacts too. This page covers both directions: Langfuse's triggers and Google Contacts's actions are listed here as well.

###

### Do I have to build a connector for Google Contacts or Langfuse?

No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.

###

### Can my AI client use Google Contacts and Langfuse without building an automation?

Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.

###

### What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

###

### Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.
