Integration
Connect Langfuse to Feathr
When New Trace fires in Langfuse, your agent runs Add breadcrumb in Feathr. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Langfuse and Feathr to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne 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.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)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)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)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)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)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)Example flows
What Langfuse can start in Feathr
When New Trace in Langfuse
then Add breadcrumb in Feathr
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 Feathr
Triggers and actions 1 trigger · 29 actions
- New Trace
Polling trigger: fires for newly created traces (dedup by trace id / timestamp).
- Add Comment
Add a comment to a trace/observation/session/prompt object.
- Add Dataset
Create a new dataset.
- Add Dataset Item
Create an item (input/expected_output/metadata) in a dataset.
- Add Prompt
Create a new prompt version (text or chat).
- Add Score
Create a score attached to a trace/observation/session (numeric, categorical, or boolean).
- Delete Trace
Delete a trace by id.
- Get Project
Reads the Langfuse project that the connection's project-scoped API key belongs to.
- Get Prompt
Get a prompt by name (and optional version/label).
- Get Trace
Get a single trace by id, including nested observations/scores.
- List Dataset Items
List items in a dataset.
- List Datasets
List all datasets in the project.
- List Prompts
List all prompts in the project.
- List Scores
List scores with optional filters.
- List Traces
List traces with optional filters (user, session, tags, timerange).
- Add breadcrumb
Records an activity, such as a page view, form submission or custom activity, against a person in Feathr. The person is found from the identifiers you supply, or created if they do not exist yet.
- Add custom field
Creates a custom field definition in your Feathr account for people, breadcrumbs or partners, and returns the new field.
- Add tag
Creates a tag in your Feathr account for the chosen kind of record, such as persons or events. Returns the new tag.
- Add tag to person
Adds one or more existing tags to a person. Tags already on the person are left unchanged.
- Create/ Update Person
Creates a person in Feathr or updates the existing one, matched by external ID, then email, then Feathr ID. Returns the full person and whether it was created or updated.
- Delete person
Deletes a person from your Feathr account by ID. The person's recorded activity (breadcrumbs) is kept.
- Get campaign
Returns a single Feathr campaign by its ID, including its name, type, project, state and schedule. An error occurs if the campaign is not found.
- Get person
Returns a Feathr person by ID, including their tags and custom field values. An error occurs if the person is not found.
- List breadcrumbs
Returns breadcrumbs, the activity records of people in your Feathr account, newest first, optionally filtered by activity type, person, campaign, project or time range.
- List campaigns
Returns the campaigns in the Feathr account, including each campaign's name, type, project, state and schedule.
- List custom fields
Returns the custom fields defined in the Feathr account, optionally limited to one entity type.
- List persons
Returns the persons last seen since a given time, optionally narrowed by external ID or tags, or looks up a single person by email or external ID.
- List projects
Returns the account's projects, including each project's name, location, site and registration URLs, and created, start and end dates.
- List tags
Returns the account's tags, optionally only those of one kind, such as person or event tags.
- Remove tag from person
Removes a tag from a person in your Feathr account. Nothing changes if the person does not hold the tag.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
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Questions
Langfuse and Feathr, 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 Feathr when something happens in Langfuse?
Any of Feathr's 15 actions, including Create/ Update Person, Add breadcrumb, Add custom field and Add tag. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Feathr to Langfuse?
Feathr has no triggers in the catalog today, so automations start in Langfuse. If you need the other direction, ask: your agent reads Feathr's API documentation and adds it.
Do I have to build a connector for Langfuse or Feathr?
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 Feathr 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.