--- title: "Connect Langfuse and Postman - APIANT.ai" description: "When \"New Trace\" fires in Langfuse, your agent runs \"Create Folder\" in Postman, or \"New Collection\" in Postman to \"Add Dataset Item\" in Langfuse." canonical: "https://apiant.ai/connect/langfuse-to-postman" --- # Connect Langfuse and Postman When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Create Folder** in [Postman](https://apiant.ai/connections/postman), or **New Collection** in Postman to **Add Dataset Item** in Langfuse. Describe the whole flow and it is built, tested on every scenario and kept running. Langfuse **1** trigger Langfuse **14** actions Postman **5** triggers Postman **26** 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 Postman 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) Langfuse records what your LLM app actually did; Postman holds the collections, environments and monitors your team uses to probe the APIs behind it. Connecting them means a failing trace can turn into a Postman request or monitor run, and new Postman collections can become Langfuse datasets, without anyone copying details between the two. Example flows ## What Langfuse and Postman can do together ### From Langfuse to Postman - When **New Trace** in Langfuse then **Create Folder** in Postman - When **New Trace** in Langfuse then **Run Monitor** in Postman ### From Postman to Langfuse - When **New Collection** in Postman then **Add Dataset Item** in Langfuse - When **New Monitor** in Postman then **Add Comment** 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 Postman ## Triggers and actions 6 triggers · 40 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 Collection** Triggered when a new collection is created. - Trigger **New Environment** Triggers when you need to list environments. Optionally filter by workspace. - Trigger **New Mock Server** Triggers when you need to list mock servers. Optionally filter by workspace. - Trigger **New Monitor** Triggered when a new monitor is created in Postman. - Trigger **New Workspace** Triggered when a new workspace is created. - Action **Create Collection** Creates a new Postman collection. - Action **Create Environment** Creates a new Postman environment with optional variables. - Action **Create Folder** Creates a folder inside a collection. - Action **Create Mock Server** Creates a new mock server from a collection. - Action **Create Monitor** Creates a new Postman monitor for a collection. - Action **Create Request** Creates a new request in a Postman collection. - Action **Create Workspace** Creates a new Postman workspace. - Action **Delete Collection** Delete a collection by ID. - Action **Delete Environment** Delete an environment by ID. - Action **Delete Mock Server** Delete a mock server by ID. - Action **Delete Monitor** Delete a monitor by ID. - Action **Delete Workspace** Delete a workspace by ID. - Action **Find Collection by ID** Returns a single collection by ID. - Action **Find Environment by ID** Returns a single environment by ID. - Action **Find Mock Server by ID** Returns a single mock server by ID. - Action **Find Monitor by ID** Returns a single monitor by ID. - Action **Find Workspace by ID** Returns a single workspace by ID. - Action **List Collections** List all collections accessible to the API key, optionally filtered by workspace. - Action **List Environments** List all environments accessible to the API key, optionally filtered by workspace. - Action **List Workspaces** List all workspaces accessible to the API key. - Action **Run Monitor** Runs a Postman monitor and returns the run results. - Action **Update Collection** Replaces an existing collection with the name, requests and settings you supply. - Action **Update Environment** Updates an existing environment. - Action **Update Mock Server** Update a mock server's config. - Action **Update Monitor** Updates an existing monitor. - Action **Update Workspace** Updates an existing workspace. ## 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) - [ **Postman** Postman is a platform for building and testing APIs.](https://apiant.ai/connections/postman) 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 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) ## More into Postman - [ **Gmail to Postman** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-postman) - [ **Beanstalk to Postman** Beanstalk is a code hosting and deployment workflow tool for Git and Subversion.](https://apiant.ai/connect/beanstalk-to-postman) - [ **Clockify to Postman** Clockify is a completely free time tracking software for teams.](https://apiant.ai/connect/clockify-to-postman) - [ **crates.io to Postman** Search Rust crates and read crate metadata, versions, owners and download counts from the crates.io package...](https://apiant.ai/connect/crates-io-to-postman) - [ **Grist to Postman** Grist combines the flexibility of a spreadsheet with the robustness of a database to organize your data...](https://apiant.ai/connect/grist-to-postman) - [ **Openlayer to Postman** Openlayer is a platform for monitoring, evaluating, and testing AI and ML models in production.](https://apiant.ai/connect/openlayer-to-postman) Questions ## Langfuse and Postman, answered ### ### Can a Langfuse trace start work in Postman on its own? Yes. The New Trace trigger in Langfuse can fetch the full trace and then create a request, create a folder or run a monitor in Postman. The agent tests every scenario before it goes live, including traces that do not meet your condition. ### ### What can Postman send back into Langfuse? New collections, monitors, environments and workspaces in Postman can create a dataset, add a dataset item or add a comment in Langfuse. Anything beyond those listed actions, such as reading monitor run history into Langfuse, is not part of this pairing. ### ### 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 Postman when something happens in Langfuse? Any of Postman's 26 actions, including Create Folder, Run Monitor, Create Collection and Create Environment. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Postman to Langfuse? Yes. When something happens in Postman, your agent can act in Langfuse too. This page covers both directions: Postman's triggers and Langfuse's actions are listed here as well. ### ### Do I have to build a connector for Langfuse or Postman? 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 Postman 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.