# Palmyr Email Inbox Send

> Palmyr Email Inbox Send is a paid API for AI agents from palmyr.ai, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-12).

Sends an email from a specified Palmyr-managed inbox, paid via USDC on Solana or Base using x402.

## Facts

- Endpoint: POST https://palmyr.ai/email/inboxes/%7Bid%7D/send
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/palmyr-email-inbox-send-e597666b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lEf7lPiZqY6d95lr5h5Yl

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 palmyr-email-inbox-send-e597666b -d '<json body>'
```

Example prompt: Send an email from my Palmyr inbox (ID: inbox_abc123) to hello@example.com with the subject 'Project Update' and body 'Hi, just wanted to confirm the meeting is set for Friday at 3pm. Let me know if anything changes.'

## When to prefer this

Choose this endpoint when an AI agent needs to autonomously send outbound email from a Palmyr-managed inbox, particularly in agentic workflows where payment is handled via USDC micropayments (x402) on Solana or Base rather than traditional API key billing. Ideal for agents that manage their own email identities on Palmyr's infrastructure.

## Known failure modes

- Invalid or non-existent inbox ID returns 404
- Insufficient USDC balance or failed x402 payment returns 402
- Missing required fields (recipient, subject, body) returns 400
- Unauthorized access to the specified inbox returns 403
- Downstream email delivery failure returns 500 or a delivery error status

## How this service works

Autonomous infrastructure for AI agents — pay with USDC on Solana or Base via x402.

## Output

A confirmation response indicating whether the email was successfully dispatched from the specified inbox, likely including a message ID or delivery status.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "properties": {
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/palmyr-email-inbox-send-e597666b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from palmyr.ai](https://www.zero.xyz/host/palmyr.ai/llms.txt)