Send an email message from an inbox
Send an email message from an inbox. At least one recipient (to, cc, or bcc) is required. Returns the message_id and thread_id. Replace {inbox_id} directly in the path with the full inbox email (e.g., /v0/inboxes/myagent@agentmail.to/messages/send).
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.orthogonal.com/agentmail/v0/inboxes/x402test1786260932@agentmail.to/messages/send
| Category | Everything else |
|---|---|
| Provider host | x402.orthogonal.com |
| Networks | eip155:143, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"attachments": {
"description": "Array of attachment objects: {filename: string, content_type: string, content: string (base64)} or {filename: string, content_type: string, url: string}.",
"type": "array"
},
"bcc": {
"description": "BCC recipient email address(es). String or array of strings.",
"type": "array"
},
"cc": {
"description": "CC recipient email address(es). String or array of strings.",
"type": "array"
},
"headers": {
"description": "Custom email headers as key-value pairs (e.g., {\"X-Custom\": \"value\"}).",
"type": "object"
},
"html": {
"description": "HTML body. Provide text, html, or both.",
"type": "string"
},
"labels": {
"description": "Array of label strings to tag the sent message.",
"type": "array"
},
"reply_to": {
"description": "Reply-to address(es) if different from the inbox address.",
"type": "array"
},
"subject": {
"description": "Email subject line.",
"type": "string"
},
"text": {
"description": "Plain text body. Provide text, html, or both.",
"type": "string"
},
"to": {
"description": "Recipient email address(es). At least one of to, cc, or bcc is required. Can be a string or array of strings.",
"type": "array"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}