---
title: "Seed Custom Pipeline"
method: POST
path: "/api/v1/custom_processors/seed"
tags: ["Custom Processors"]
---

# Seed Custom Pipeline

`POST /api/v1/custom_processors/seed`

Directly create a completed custom processor from JSON. Admin-only.

Skips the agent entirely -- useful for seeding test data, local development,
and populating demos. The processor is immediately usable via POST /api/v1/marker.

USE WITH CAUTION

## Cookies

- `wos-session` string
- `datalab_active_team` string

## Request body

- SeedPipelineRequest — Request body for seeding a custom processor directly (no agent).
  - `name` string, required — Display name for the processor
  - `request_description` string, required — Description of what this processor does
  - `pipeline_params` object, required — Pipeline parameters (must contain 'modifications' array)
  - `original_params` object — Base pipeline parameters
  - `eval_definition` object, nullable — Evaluation definition for running evals against this processor
  - `processor_id` string, nullable — Optional fixed processor ID (default: auto-generated)
  - `template_slug` string, nullable — URL-friendly slug to create this processor as a template
  - `template_description` string, nullable — Public-facing template description
  - `template_category` string, nullable — Template category (e.g. Research, Business)
  - `display_config` object, nullable — Display configuration for the template UI (recommended_view, changes_description, highlight_css)

## Response `200`

Successful Response

- SeedPipelineResponse — Response after seeding a custom processor.
  - `success` boolean, required
  - `processor_id` string, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/datalab/apis/datalab-api.md) · [All operations](https://skmtc.dev/datalab/apis/datalab-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/datalab/datalab-api/revisions/aa9f8ee18efb/schema)