---
title: "Create a builder API key"
description: "Mints a key that acts as you, the builder, in ONE organisation, the one you name, narrowed to the scopes you choose."
canonical: "https://gtable.app/docs/builder-api/keys/create"
updated: "2026-10-05"
---

# Create a builder API key

`POST https://studio.gtable.app/v1/keys`

Mints a key that acts as you, the builder, in ONE organisation, the one you name, narrowed to the scopes you choose.

Only from a signed-in browser: a key or a connected agent cannot mint another. Expires in 90 days unless you choose otherwise; `expiresInDays: null` is a key that lives until revoked. Returned once; never stored in clear. For CI, and for the CLI when there is no browser.

Any valid credential for this API: no scope is needed. Operation `keys.create`. Not an MCP tool: keys are made by a person in a signed-in browser. CLI, once published: `gtable keys create`.

## Headers

| Name              | Type   | Required | Description                                                                                                                                                                                                                                                        |
| ----------------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `Idempotency-Key` | string | no       | Any unique string. Sending the same key with the same request again returns the first response (marked `Idempotency-Replayed: true`) instead of running it twice. Reusing it for a different request is refused with 409. Kept for 24 hours. Up to 255 characters. |

## Request body

| Field            | Type            | Required | Description           |
| ---------------- | --------------- | -------- | --------------------- |
| `organizationId` | string          | yes      |                       |
| `name`           | string          | yes      | Up to 120 characters. |
| `scopes`         | string\[]       | yes      |                       |
| `expiresInDays`  | integer or null | no       |                       |