# Connect Langfuse to Stencil When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **List projects** in [Stencil](https://apiant.ai/connections/stencil). Describe the whole flow and it is built, tested on every scenario and kept running. Langfuse **1** trigger Langfuse **14** actions Stencil **4** 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 Stencil to do together? Give your AI client this address. `https://mcp.apiant.ai` 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 can start in Stencil - When **New Trace** in Langfuse then **List projects** in Stencil - When **New Trace** in Langfuse then **Find an Image** in Stencil 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 Stencil ## Triggers and actions 1 trigger · 18 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). - Action **Find an Image** Searches your generated images for text that appears in their template modification values and returns the matching images. - Action **Find a PDF** Searches generated PDFs for text matching your template modification values and returns the matching PDFs. - Action **Find a Template** Finds templates in a Stencil project whose name contains the text you give, and returns the first match along with all matches. - Action **List projects** Returns the projects in your Stencil account. ## 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) - [ **Stencil** Stencil is an image generation API that automatically creates share images for your content from custom...](https://apiant.ai/connections/stencil) Reviews ## What our customers say ## More from Langfuse - [ **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) - [ **Langfuse to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/langfuse-to-mailchimp) - [ **Langfuse to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/langfuse-to-stripe) - [ **Langfuse to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/langfuse-to-shopify) ## More into Stencil - [ **Discord to Stencil** Discord is an all-in-one voice and text chat for gamers.](https://apiant.ai/connect/discord-to-stencil) - [ **HubSpot to Stencil** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-stencil) - [ **Salesforce to Stencil** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-stencil) - [ **Slack to Stencil** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-stencil) - [ **Google Sheets to Stencil** Google Sheets](https://apiant.ai/connect/google-sheets-to-stencil) - [ **Gmail to Stencil** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-stencil) Questions ## Langfuse and Stencil, 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 Stencil when something happens in Langfuse? Any of Stencil's 4 actions, including Find an Image, Find a PDF, Find a Template and List projects. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Stencil to Langfuse? Stencil has no triggers in the catalog today, so automations start in Langfuse. If you need the other direction, ask: your agent reads Stencil's API documentation and adds it. ### ### Do I have to build a connector for Langfuse or Stencil? 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. ### ### 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.