# AgentMail Update Inbox

> AgentMail Update Inbox is a free API for AI agents from AgentMail at mpp.api.agentmail.to, Free, status unknown (last checked 2026-10-11).

Updates the display name of a specific inbox within an AgentMail pod

## Facts

- Endpoint: PATCH https://mpp.api.agentmail.to/v0/pods/:pod_id/inboxes/:inbox_id?utm_source=zero.xyz
- Price: Free
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Provider: AgentMail
- Docs: https://docs.agentmail.to
- Website: https://agentmail.to
- Tags: email, inboxes, domains, drafts, threads, webhooks, messaging, ai, social
- Canonical page: https://www.zero.xyz/c/agentmail-inbox-id-fd0dd15f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E16ilmdQPAeKV-H3hclMZ

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 agentmail-inbox-id-fd0dd15f -d '<json body>'
```

Example prompt: Update my AgentMail inbox 'support-bot' in pod 'prod-pod-01' so its display name shows as 'Support Bot <support-bot@agentmail.to>'.

## When to prefer this

Use this endpoint when you need to update the display name of an existing AgentMail inbox — for example, to change how the sender appears in outgoing emails from an AI agent inbox. It is the only AgentMail endpoint for mutating inbox metadata.

## Known failure modes

- Missing required display_name field returns 422 validation error
- Invalid pod_id or inbox_id returns 404 not found
- Missing or invalid Authorization Bearer token returns 401 unauthorized
- Malformed request body returns 400 bad request

## How this service works

Update Inbox

## Output

Returns the updated Inbox object with pod_id, inbox_id, client_id, display_name, created_at, and updated_at fields confirming the changes were applied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "title": "UpdateInboxRequest",
 "required": [
  "display_name"
 ],
 "properties": {
  "display_name": {
   "type": "string",
   "title": "DisplayName",
   "description": "Display name: `Display Name <username@domain.com>`."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "title": "Inbox",
 "required": [
  "pod_id",
  "inbox_id",
  "updated_at",
  "created_at"
 ],
 "properties": {
  "pod_id": {
   "type": "string",
   "title": "PodId",
   "description": "ID of pod."
  },
  "inbox_id": {
   "type": "string",
   "title": "InboxId",
   "description": "The ID of the inbox."
  },
  "client_id": {
   "type": "string",
   "title": "ClientId",
   "description": "Client ID of inbox."
  },
  "created_at": {
   "type": "string",
   "format": "date-time",
   "description": "Time at which inbox was created."
  },
  "updated_at": {
   "type": "string",
   "format": "date-time",
   "description": "Time at which inbox was last updated."
  },
  "display_name": {
   "type": "string",
   "title": "DisplayName",
   "description": "Display name: `Display Name <username@domain.com>`."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentmail-inbox-id-fd0dd15f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.api.agentmail.to](https://www.zero.xyz/host/mpp.api.agentmail.to/llms.txt)