# Connect Langfuse to Census Bureau

When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Geocode address** in [Census Bureau](https://apiant.ai/connections/census-bureau). Describe the whole flow and it is built, tested on every scenario and kept running.

Langfuse **1** trigger Langfuse **14** actions Census Bureau **5** 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 Census Bureau 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 Census Bureau

- When **New Trace** in Langfuse then **Geocode address** in Census Bureau
- When **New Trace** in Langfuse then **Find dataset data** in Census Bureau

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 Census Bureau

## Triggers and actions 1 trigger · 19 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 dataset data**

Returns statistics from a Census Bureau dataset for the variables and geographies you choose, such as population by state.

- Action

**Geocode address**

Returns the latitude/longitude coordinates and standardized address matches for a U.S. street address using the Census Geocoder.

- Action

**List dataset geographies**

Returns the geography levels (state, county, tract and so on) a Census dataset publishes, with the parent geographies each one requires.

- Action

**List datasets**

Returns every dataset published on the Census Data API, with its title, description, vintage and API endpoint.

- Action

**List dataset variables**

Returns every variable available in a Census dataset, with each variable's label, concept and table group.

## 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)
- [ **Census Bureau** REST API for querying U.S. Census demographic, economic, and geographic survey data by variable and location.](https://apiant.ai/connections/census-bureau)

Reviews

## What our customers say

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## More into Census Bureau

- [ **HubSpot to Census Bureau** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-census-bureau)
- [ **Salesforce to Census Bureau** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-census-bureau)
- [ **Slack to Census Bureau** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-census-bureau)
- [ **Google Sheets to Census Bureau** Google Sheets](https://apiant.ai/connect/google-sheets-to-census-bureau)
- [ **Gmail to Census Bureau** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-census-bureau)
- [ **Google Calendar to Census Bureau** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-census-bureau)

Questions

## Langfuse and Census Bureau, 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 Census Bureau when something happens in Langfuse?

Any of Census Bureau's 5 actions, including Find dataset data, Geocode address, List dataset geographies and List datasets. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from Census Bureau to Langfuse?

Census Bureau has no triggers in the catalog today, so automations start in Langfuse. If you need the other direction, ask: your agent reads Census Bureau's API documentation and adds it.

###

### Do I have to build a connector for Langfuse or Census Bureau?

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 Census Bureau 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.
