# POST /d/{id} — Invoke Zerohost Disposable Backend

> POST /d/{id} — Invoke Zerohost Disposable Backend is a paid API for AI agents from zerohost.evmoore.workers.dev, paid per call via MPP, price unknown, status unknown (last checked 2026-10-22).

Send an HTTP POST request to a deployed disposable backend instance identified by its deploy ID

## Facts

- Endpoint: POST https://zerohost.evmoore.workers.dev/d/{id}?utm_source=zero.xyz
- Price: price unknown
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Provider: zerohost.evmoore.workers.dev
- Website: https://zerohost.evmoore.workers.dev
- Canonical page: https://www.zero.xyz/c/zerohost-evmoore-workers-dev-post-d-id-invoke-zerohost-disposable-894b14fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rMjaWQYy6zGrnhFPnnSTa

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability zerohost-evmoore-workers-dev-post-d-id-invoke-zerohost-disposable-894b14fd -d '<json body>'
```

Example prompt: Send a POST request to my zerohost deploy with ID 'abc123' — pass it this JSON body: {"name": "world"} and return whatever the backend responds with.

## When to prefer this

Use this endpoint when you need to invoke a previously deployed ephemeral backend via POST — for example, to trigger a computation, submit data, or call a custom handler that was uploaded as a zip. This is specifically for POSTing to an existing Zerohost deploy by its ID, not for creating or managing deploys.

## Known failure modes

- Deploy ID not found or expired (TTL elapsed) — 404 Not Found
- Backend runtime error in user code — 500 Internal Server Error
- Malformed request body rejected by backend — 400 Bad Request
- Deploy is paused or deleted — 404 or 410 Gone
- Payment/billing issue preventing execution — 402 Payment Required

## Output

Returns an HTTP response object from the user's deployed disposable backend, containing whatever output the backend code produced in response to the POST payload. Response schema is a generic JSON object, so the structure depends on the user's backend implementation.

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zerohost-evmoore-workers-dev-post-d-id-invoke-zerohost-disposable-894b14fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from zerohost.evmoore.workers.dev](https://www.zero.xyz/host/zerohost.evmoore.workers.dev/llms.txt)