--- title: "Connect Langfuse and Userflow - APIANT.ai" description: "When \"New Trace\" fires in Langfuse, your agent runs \"Create/Update User\" in Userflow, or \"Checklist Completed\" in Userflow to \"Add Comment\" in Langfuse." canonical: "https://apiant.ai/connect/langfuse-to-userflow" --- # Connect Langfuse and Userflow When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Create/Update User** in [Userflow](https://apiant.ai/connections/userflow), or **Checklist Completed** in Userflow 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 Userflow **14** triggers Userflow **5** 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 Userflow 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 Userflow can do together ### From Langfuse to Userflow - When **New Trace** in Langfuse then **Create/Update User** in Userflow - When **New Trace** in Langfuse then **Track Event** in Userflow ### From Userflow to Langfuse - When **Checklist Completed** in Userflow then **Add Comment** in Langfuse - When **Checklist Task Completed** in Userflow 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 Userflow ## Triggers and actions 15 triggers · 19 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 **Checklist Completed** Triggered when a user finishes every task in a Userflow checklist. - Trigger **Checklist Dismissed/Ended** Triggered when a Userflow checklist ends for a user — because they dismissed it, it was completed, or it stopped applying to them. The reason is in checklist_end_reason. - Trigger **Checklist Started** Triggered when a user starts a Userflow checklist. Why it started is in checklist_start_reason. - Trigger **Checklist Task Completed** Triggered when a user completes a single task inside a Userflow checklist. - Trigger **Event Tracked** Triggered when Userflow tracks an event for a user — either your own custom events or Userflow's own flow and checklist events. Name one event to watch, or leave it blank to fire for all of them. - Trigger **Flow Completed** Triggered when a user completes a Userflow flow by reaching its goal step. - Trigger **Flow Dismissed/Ended** Triggered when a Userflow flow ends for a user — because they dismissed it, finished it, or it stopped applying. The reason is in flow_end_reason. - Trigger **Flow Started** Triggered when a user starts a Userflow flow. Why it started is in flow_start_reason. - Trigger **Group Created/Updated** Triggered when a group (a company or account) is created or changed in Userflow. - Trigger **Launcher Activated** Triggered when a user clicks a Userflow launcher (a beacon, button or hotspot) to open it. - Trigger **Launcher Dismissed** Triggered when a user dismisses a Userflow launcher (a beacon, button or hotspot). - Trigger **Launcher Seen** Triggered when a Userflow launcher (a beacon, button or hotspot) is shown to a user. - Trigger **Question Answered** Triggered when a user answers a question in a Userflow flow — a survey, NPS or rating step. The answer arrives as text, a number, or a list depending on the question type. - Trigger **User Created/Updated** Triggered when a user is created or changed in Userflow. - Action **Create/Update Group** Creates a group (a company or account) in Userflow, or updates it if a group with that ID already exists. Only the attributes you send are changed. - Action **Create/Update User** Creates a user in Userflow, or updates them if a user with that ID already exists. Only the attributes you send are changed. Optionally adds the user to a group. - Action **Find Group** Finds groups (companies or accounts) in Userflow by name. Userflow's API cannot filter on the server, so this reads up to 300 groups and matches them here; leave the name blank to just list them. - Action **Find User** Finds users in Userflow by email or name. Userflow's API cannot filter on the server, so this reads up to 300 users and matches them here; leave both fields blank to just list them. - Action **Track Event** Tracks an event for a user in Userflow, so you can use it to start flows or checklists and to segment users. ## 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) - [ **Userflow** Userflow is a user onboarding platform, which lets your whole team build customized in-app tours, checklists...](https://apiant.ai/connections/userflow) 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 Userflow - [ **Agile CRM to Userflow** Agile CRM is an all-in-one CRM with sales, marketing, and service automation.](https://apiant.ai/connect/agile-crm-to-userflow) - [ **Telegram to Userflow** Telegram is a cloud-based instant messaging and voice over IP service developed by Telegram Messenger LLP.](https://apiant.ai/connect/telegram-to-userflow) - [ **HubSpot to Userflow** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-userflow) - [ **Salesforce to Userflow** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-userflow) - [ **Slack to Userflow** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-userflow) - [ **Google Sheets to Userflow** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-userflow) Questions ## Langfuse and Userflow, 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 Userflow when something happens in Langfuse? Any of Userflow's 5 actions, including Create/Update Group, Create/Update User, Find Group and Find User. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Userflow to Langfuse? Yes. When something happens in Userflow, your agent can act in Langfuse too. This page covers both directions: Userflow's triggers and Langfuse's actions are listed here as well. ### ### Do I have to build a connector for Langfuse or Userflow? 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 Userflow 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.