---
title: "Connect Langfuse and LassoCRM - APIANT.ai"
description: "When \"New Trace\" fires in Langfuse, your agent runs \"Add Note to Registrant\" in LassoCRM, or \"New Registrant\" in LassoCRM to \"Add Comment\" in Langfuse."
canonical: "https://apiant.ai/connect/langfuse-to-lassocrm"
---

# Connect Langfuse and LassoCRM

When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Add Note to Registrant** in [LassoCRM](https://apiant.ai/connections/lassocrm), or **New Registrant** in LassoCRM to **Add Comment** in Langfuse. Describe the whole flow and it is built, tested on every scenario and kept running.

Langfuse **1** trigger Langfuse **14** actions LassoCRM **1** trigger LassoCRM **12** actions

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

## What do you want Langfuse and LassoCRM 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 Langfuse and LassoCRM can do together

### From Langfuse to LassoCRM

- When **New Trace** in Langfuse then **Add Note to Registrant** in LassoCRM
- When **New Trace** in Langfuse then **Create a History Item** in LassoCRM

### From LassoCRM to Langfuse

- When **New Registrant** in LassoCRM then **Add Comment** in Langfuse
- When **New Registrant** in LassoCRM then **Add Dataset Item** in Langfuse

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 Langfuse and LassoCRM

## Triggers and actions 2 triggers · 26 actions

- 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).

- Trigger

**New Registrant**

Triggers when a new registrant (lead) is added to your Lasso project.

- Action

**Add Note to Registrant**

Adds a free-text note to a registrant.

- Action

**Create a History Item**

Logs a history item (email, phone call, appointment, visit) on a registrant's timeline.

- Action

**Create Inventory**

Creates an inventory item (unit) in your Lasso project.

- Action

**Create Registrant**

Creates a new registrant (lead) in your Lasso project with their name, email and phone.

- Action

**Delete Inventory**

Deletes an inventory item from your Lasso project.

- Action

**Find Registrants**

Finds registrants matching a name, email, phone or external ID and returns the matches.

- Action

**Get Inventory**

Returns one inventory item (unit) with its status, plan and size.

- Action

**Get Registrant**

Returns a registrant's details (name, primary email and phone, rating, registration date) by their Lasso ID.

- Action

**List Inventory**

Returns every inventory item (units, lots) in your Lasso project.

- Action

**Update and Append to a History Item**

Updates an existing history item on a registrant, such as its subject or full content.

- Action

**Update Inventory**

Updates an inventory item's status, plan or size; fields left blank keep their current values.

- Action

**Update Registrant**

Updates a registrant's personal information such as name, company and contact preference.

## Each app on its own

- [ **Langfuse** Langfuse is an open-source LLM engineering platform (GitHub) that helps teams collaboratively debug...](https://apiant.ai/connections/langfuse)
- [ **LassoCRM** LassoCRM is a CRM that empowers home selling teams by taking the guess work out of reporting, sales and the...](https://apiant.ai/connections/lassocrm)

Reviews

## What our customers say

## More from Langfuse

- [ **Langfuse to 5DollarFootball** Football fixtures, results, standings and historical odds with corner and card lines](https://apiant.ai/connect/langfuse-to-5dollarfootball)
- [ **Langfuse to Cloudflare Trace** Cloudflare Trace is a free JSON wrapper over Cloudflare's edge trace endpoint that reports what Cloudflare...](https://apiant.ai/connect/langfuse-to-cloudflare-trace)
- [ **Langfuse to PaperClean** Clean document photos for printing, remove shadows, fix lighting](https://apiant.ai/connect/langfuse-to-paperclean)
- [ **Langfuse to Postman** Postman is a platform for building and testing APIs.](https://apiant.ai/connect/langfuse-to-postman)
- [ **Langfuse to Rendobar** Hosted media processing over REST: transcode, caption, watermark video](https://apiant.ai/connect/langfuse-to-rendobar)
- [ **Langfuse to Runpod** Cloud GPU platform for renting on-demand compute to train and deploy AI models, including serverless...](https://apiant.ai/connect/langfuse-to-runpod)

## More into LassoCRM

- [ **HubSpot to LassoCRM** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-lassocrm)
- [ **Google Sheets to LassoCRM** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-lassocrm)
- [ **Gmail to LassoCRM** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-lassocrm)
- [ **Google Calendar to LassoCRM** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-lassocrm)
- [ **Google Drive to LassoCRM** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-lassocrm)
- [ **ActiveCampaign to LassoCRM** ActiveCampaign is a marketing automation, email marketing, and CRM platform.](https://apiant.ai/connect/activecampaign-to-lassocrm)

Questions

## Langfuse and LassoCRM, answered

###

### What can start an automation from Langfuse?

Any of Langfuse's 1 trigger in the catalog, including New Trace. Describe the moment in plain language and your agent picks the right one.

###

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

Any of LassoCRM's 12 actions, including Create a History Item, Create Inventory, Create Registrant and Update and Append to a History Item. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from LassoCRM to Langfuse?

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

###

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

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 Langfuse and LassoCRM 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.
