--- title: "Connect Langfuse to Mailazy - APIANT.ai" description: "When \"New Trace\" fires in Langfuse, your agent runs \"Add contact\" in Mailazy." canonical: "https://apiant.ai/connect/langfuse-to-mailazy" --- # Connect Langfuse to Mailazy When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Add contact** in [Mailazy](https://apiant.ai/connections/mailazy). Describe the whole flow and it is built, tested on every scenario and kept running. Langfuse **1** trigger Langfuse **14** actions Mailazy **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 Mailazy 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 Mailazy - When **New Trace** in Langfuse then **Add contact** in Mailazy - When **New Trace** in Langfuse then **Add contact to list** in Mailazy 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 Mailazy ## Triggers and actions 1 trigger ยท 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). - Action **Add contact** Creates a contact in Mailazy, optionally adding it to one or more lists right away. - Action **Add contact to list** Adds a contact to a Mailazy list by contact id or email, which schedules that list's automation emails. - Action **Add list** Creates a new contact list in your Mailazy product. - Action **Add suppression** Adds an email address to the product's suppression list so no more email is sent to it. Re-adding an address already suppressed returns the existing entry. - Action **Add tag** Creates a new tag in your Mailazy product. Tag names are unique, ignoring case. - Action **Delete contact** Deletes a contact from your Mailazy product. - Action **Find contact by email** Finds a Mailazy contact by its email address and returns the contact record. - Action **Get contact** Returns a single Mailazy contact by its ID, including email, name and metadata. - Action **List contacts** Returns contacts in your Mailazy product, optionally filtered and sorted by created date. - Action **List lists** Returns all contact lists in your Mailazy product. - Action **Remove contact from list** Removes a contact from a list and cancels any pending sends for that list. - Action **Update contact** Updates a Mailazy contact's name and merges new values into its metadata. ## 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) - [ **Mailazy** Mailazy is an email service provider focused exclusively on transactional email delivery.](https://apiant.ai/connections/mailazy) 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 Mailazy - [ **OpenAI to Mailazy** OpenAI's platform for text generation (Responses + Chat Completions), image generation (gpt-image-1 /...](https://apiant.ai/connect/openai-to-mailazy) - [ **Capsule CRM to Mailazy** Capsule is an online hosted CRM system for individuals, small businesses and sales teams wanting a simple...](https://apiant.ai/connect/capsule-crm-to-mailazy) - [ **PagerDuty to Mailazy** PagerDuty is an incident management and on-call alerting platform.](https://apiant.ai/connect/pagerduty-to-mailazy) - [ **HubSpot to Mailazy** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailazy) - [ **Salesforce to Mailazy** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mailazy) - [ **Slack to Mailazy** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mailazy) Questions ## Langfuse and Mailazy, 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 Mailazy when something happens in Langfuse? Any of Mailazy's 12 actions, including Update contact, Add contact, Add contact to list and Add list. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mailazy to Langfuse? Mailazy has no triggers in the catalog today, so automations start in Langfuse. If you need the other direction, ask: your agent reads Mailazy's API documentation and adds it. ### ### Do I have to build a connector for Langfuse or Mailazy? 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 Mailazy 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.