Langfuse is an open-source LLM engineering platform for debugging, monitoring, and improving LLM applications. Trace, evaluate, and manage your AI applications with comprehensive observability.
Paperform connects to Langfuse directly through Stepper workflows, and through Zapier if you already use it.
How Langfuse connects to Paperform
Direct methods run inside your Paperform account. Zapier and Make are there too if your team already uses them.
Run a Stepper workflow when someone submits your form: 7 Langfuse actions and 2 triggers, included in your Paperform account.
- Open Stepper from your Paperform account and create a workflow.
- Start it with the Paperform “New Submission” trigger and choose your form.
- Add a Langfuse step, connect your account and map the submission’s answers to its fields.
Langfuse actions in Stepper
- Ingest Trace
- Log Generation
- Create Score
- Create Prompt
- Get Trace
- List Traces
- Make HTTP Request
Langfuse events that can start a workflow
Connect your form to Langfuse with a Zap. Zapier needs its own account and plan.
- In the form editor, go to After Submission → Integrations & Webhooks and choose Zapier.
- Create a Zap with Paperform’s “New Submission” trigger and a Langfuse action.
What your form sends to Langfuse
For example, with a Stepper workflow the “Create Score” action takes these fields. Map each one to a question
on your form, and every submission fills them in.
| Langfuse field | Question on your form | Required |
|---|
| Score Name | Short answer | Yes |
| Score Value | Short answer | Yes |
| Trace ID | Short answer | No |
| Session ID | Short answer | No |
| Observation ID | Short answer | No |
| Data Type | Dropdown or choice | No |
| Comment | Long answer | No |
| Environment | Short answer | No |
Start from a template
Pick a template, then connect it to Langfuse. There are 30,000+ in the
templates directory.
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