apps_build

Queue a durable app build and immediately return its ID and status URL. Use BuildStatus to retrieve progress and the completed app. Reuse request_key on retries. Builds survive server restarts

19 credits per call, from your balance — or paid per request in USDC with no account at all.

Runs on Apps — Build and run web apps.

Arguments

Name	Type	What it is
`request_key`	string	Reuse this key when retrying the same request. Omit to deduplicate identical descriptions.
`prompt`*	string	Description of the app to build, e.g. 'an expense tracker', 'a packing checklist', 'a water intake counter'

Calling it

Three doors onto the same method. /mcp is what an agent speaks, /api/v1 is what a program speaks, and the answer is identical.

{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{"prompt":"prompt"},"name":"apps_build"}}

Browse related tools in the service tools reference.