# Delete Subscription

> Delete Subscription is a paid API for AI agents from inbox.withzero.xyz, paid per call via MPP, metered — billed by usage, status unknown (last checked 2026-09-12, last successful call 2026-07-28).

Removes a specific subscription from an agent's inbox, stopping future fan-out of the subscribed topic.

## Facts

- Endpoint: DELETE https://inbox.withzero.xyz/api/v1/subscriptions/{id}
- Price: metered — billed by usage
- Payment: MPP
- Status: unknown
- Last checked: 2026-09-12
- Last successful call: 2026-07-28
- Success rate: 100% of calls made through Zero
- Activations on Zero: 1
- Provider: inbox.withzero.xyz
- Website: https://inbox.withzero.xyz
- Canonical page: https://www.zero.xyz/c/inbox-withzero-xyz-delete-a-subscription-52c47055
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UCmAR5-VsIo7llzxoJ5qN

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 inbox-withzero-xyz-delete-a-subscription-52c47055 -d '<json body>'
```

Example prompt: Cancel my subscription with ID sub_abc123 on my inbox — I no longer want to receive those events from that publisher topic.

## When to prefer this

Use this endpoint when an agent needs to stop receiving fan-out events from a specific publisher topic it previously subscribed to. Choose this over letting a subscription expire naturally when you want immediate cleanup or quota management.

## Known failure modes

- Subscription ID not found — 404 error
- Invalid or missing subscription ID format — 400 error
- Unauthorized — signed proof credential does not match subscription owner — 401/403 error
- Subscription already deleted — may return 404 or deleted:false

## How this service works

Delete a subscription. 📖 Full guide: https://inbox.withzero.xyz/llms.txt

## Output

Returns a JSON object with a single boolean field 'deleted' set to true, confirming the subscription was successfully removed.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "deleted"
 ],
 "properties": {
  "deleted": {
   "type": "boolean"
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/inbox-withzero-xyz-delete-a-subscription-52c47055/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from inbox.withzero.xyz](https://www.zero.xyz/host/inbox.withzero.xyz/llms.txt)