--- title: "Connect Langfuse to Tallytopia - APIANT.ai" description: "When \"New Trace\" fires in Langfuse, your agent runs \"Calculate age\" in Tallytopia." canonical: "https://apiant.ai/connect/langfuse-to-tallytopia" --- # Connect Langfuse to Tallytopia When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Calculate age** in [Tallytopia](https://apiant.ai/connections/tallytopia). Describe the whole flow and it is built, tested on every scenario and kept running. Langfuse **1** trigger Langfuse **14** actions Tallytopia **32** 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 Tallytopia 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 can start in Tallytopia - When **New Trace** in Langfuse then **Calculate age** in Tallytopia - When **New Trace** in Langfuse then **Calculate BMI** in Tallytopia 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 Tallytopia ## Triggers and actions 1 trigger · 46 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 **Calculate age** Computes exact age (years/months/days) from a birth date. - Action **Calculate BMI** Computes Body Mass Index from height and weight. - Action **Calculate BMR** Computes Basal Metabolic Rate from age, sex, height, and weight. - Action **Calculate body fat percentage** Computes body fat percentage using the US Navy circumference method. - Action **Calculate break-even point** Computes the break-even unit volume/revenue from fixed costs, variable costs, and price. - Action **Calculate calories burned** Computes calories burned during an activity from duration, weight, and activity type. - Action **Calculate circle dimensions** Computes area, circumference, and diameter of a circle from a given measurement. - Action **Calculate compound interest** Computes compound interest growth of a principal over time. - Action **Calculate concrete needed** Computes cubic yards/volume of concrete needed for a slab from dimensions. - Action **Calculate days between dates** Computes the number of days between two given dates. - Action **Calculate discount** Computes the discounted price and savings from an original price and discount rate. - Action **Calculate fuel cost** Computes trip fuel cost from distance, fuel efficiency, and fuel price. - Action **Calculate ideal weight** Computes ideal body weight estimate from height and sex. - Action **Calculate loan repayment** Computes a loan repayment schedule/amount from principal, rate, and term. - Action **Calculate macros** Computes protein/carb/fat macronutrient targets from calorie goal and diet split. - Action **Calculate markup and margin** Computes markup percentage and profit margin from cost and selling price. - Action **Calculate mortgage payment** Computes a monthly mortgage payment from principal, rate, and term. - Action **Calculate ovulation date** Computes estimated ovulation and fertile window from cycle data. - Action **Calculate percentage** Computes a percentage of a value. - Action **Calculate percentage change** Computes the percentage increase or decrease between two values. - Action **Calculate pregnancy due date** Computes the estimated pregnancy due date from last menstrual period date. - Action **Calculate running pace** Computes pace per mile/km from distance and time. - Action **Calculate sales tax** Computes sales tax and total price from a base amount and tax rate. - Action **Calculate savings goal** Computes how much to save periodically to reach a savings target. - Action **Calculate square footage** Computes square footage of a room/area from its dimensions. - Action **Calculate TDEE** Computes Total Daily Energy Expenditure (daily calorie needs) from BMR and activity level. - Action **Calculate tip** Computes tip amount and per-person split from a bill total, tip percentage, and party size. - Action **Calculate triangle area** Computes the area of a triangle from base and height (or side lengths). - Action **Calculate VAT** Computes VAT-inclusive/exclusive amounts from a base value and rate. - Action **Get calculator** Describes one calculator's required inputs and the calculation steps it will perform, by slug. - Action **List calculators** Returns the full list of available Tallytopia calculators with their slugs and categories. - Action **Solve quadratic equation** Solves a quadratic equation's roots from its a/b/c coefficients. ## 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) - [ **Tallytopia** Tallytopia is a hosted calculator service covering finance, health, mathematics, space and sports.](https://apiant.ai/connections/tallytopia) 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 Tallytopia - [ **HubSpot to Tallytopia** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-tallytopia) - [ **Salesforce to Tallytopia** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-tallytopia) - [ **Slack to Tallytopia** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-tallytopia) - [ **Google Sheets to Tallytopia** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-tallytopia) - [ **Gmail to Tallytopia** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-tallytopia) - [ **Google Calendar to Tallytopia** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-tallytopia) Questions ## Langfuse and Tallytopia, 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 Tallytopia when something happens in Langfuse? Any of Tallytopia's 32 actions, including Calculate age, Calculate BMI, Calculate BMR and Calculate body fat percentage. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Tallytopia to Langfuse? Tallytopia has no triggers in the catalog today, so automations start in Langfuse. If you need the other direction, ask: your agent reads Tallytopia's API documentation and adds it. ### ### Do I have to build a connector for Langfuse or Tallytopia? 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 Tallytopia 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.