---
title: "Creates an assay metadata definition"
method: POST
path: "/api/grit/assays/assay_metadata_definitions"
tags: ["Assays - Assay Metadata Definitions"]
---

# Creates an assay metadata definition

`POST /api/grit/assays/assay_metadata_definitions`

## Request

- Base URL: `/` (relative, and the document was published on a file host, not at the API’s origin)
- URL: `/api/grit/assays/assay_metadata_definitions`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/grit42/apis/grit-assays-api/docs/api/grit/assays/assay_metadata_definitions/post.ts> (a function with typed inputs; its response is checked against the schema)

## Request body

- object

## Response `201`

assay metadata definition created

## Other responses

- `422`: not created with invalid safe_name

---

[API](https://skmtc.dev/grit42/apis/grit-assays-api.md) - [All operations](https://skmtc.dev/grit42/apis/grit-assays-api/llms.txt) - [OpenAPI document](https://skmtc.dev/grit42/apis/grit-assays-api/revisions/a08b5b2b48b9?raw)