--- title: "Connect Langfuse and Modusign - APIANT.ai" description: "When \"New Trace\" fires in Langfuse, your agent runs \"Add document request\" in Modusign, or \"Document Updated\" in Modusign to \"Add Comment\" in Langfuse." canonical: "https://apiant.ai/connect/langfuse-to-modusign" --- # Connect Langfuse and Modusign When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Add document request** in [Modusign](https://apiant.ai/connections/modusign), or **Document Updated** in Modusign 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 Modusign **1** trigger Modusign **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 Modusign 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 Modusign can do together ### From Langfuse to Modusign - When **New Trace** in Langfuse then **Add document request** in Modusign - When **New Trace** in Langfuse then **Request Document With Template** in Modusign ### From Modusign to Langfuse - When **Document Updated** in Modusign then **Add Comment** in Langfuse - When **Document Updated** in Modusign 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 Modusign ## 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 **Document Updated** Triggers when a document is created, signed, completed, or aborted. - Action **Add document request** Request signatures on a document (signature request). - Action **Add label** Creates a new label in Modusign. - Action **Cancel document request** Cancel a pending signature request. - Action **Delete label** Delete a label. - Action **Delete template** Delete a template. - Action **Get Document** Retrieves the details of a single Modusign document by its ID. - Action **Get template** Get a template by id. - Action **Get user** Gets the Modusign user whose credentials the connection uses. - Action **Remind Signing** Resend signing request notifications to signers who did not sign. - Action **Request Document With Template** Create a document using a template and request signers to sign it. - Action **Search Documents** Search for documents with specific conditions. - Action **Update label** Update a label. ## 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) - [ **Modusign** Modusign is a simple electronic contract service that makes signing a contract and its storage at once at...](https://apiant.ai/connections/modusign) 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 Modusign - [ **HubSpot to Modusign** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-modusign) - [ **Google Sheets to Modusign** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-modusign) - [ **Gmail to Modusign** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-modusign) - [ **Google Calendar to Modusign** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-modusign) - [ **Google Drive to Modusign** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-modusign) - [ **Mailchimp to Modusign** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-modusign) Questions ## Langfuse and Modusign, 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 Modusign when something happens in Langfuse? Any of Modusign's 12 actions, including Update label, Add document request, Add label and Get Document. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Modusign to Langfuse? Yes. When something happens in Modusign, your agent can act in Langfuse too. This page covers both directions: Modusign's triggers and Langfuse's actions are listed here as well. ### ### Do I have to build a connector for Langfuse or Modusign? 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 Modusign 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.