Index onlineMerchant portal
Api Endpoint

x402.orthogonal.com

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).

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Offering

Provider
x402.orthogonal.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Infrastructure
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402.orthogonal.com/agentmail/v0/inboxes/x402test1786260932@agentmail.to/messages/send
MIME type
Not provided
First seen
2026-10-16T01:58:26.121Z
Last seen
Tags
None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
10000 atomic units
Atomic price: 10000 · Network: eip155:8453 · Asset: 0xB2000000000000000000002fEb517dFeC7415344 · Scheme: exact
Payment option 3
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 4
0.01 USDC
Atomic price: 10000 · Network: eip155:143 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xaA4a75114b5BdA671844ae10256d2B048dF8fdc3"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0xB2000000000000000000002fEb517dFeC7415344",
    "amount": "10000",
    "payTo": "0xaA4a75114b5BdA671844ae10256d2B048dF8fdc3"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "8SyvbRkRm4qCG6xURoejGwJ9vgFVUqYBgRJNEynURhps"
  },
  {
    "scheme": "exact",
    "network": "eip155:143",
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "amount": "10000",
    "payTo": "0xaA4a75114b5BdA671844ae10256d2B048dF8fdc3"
  }
]

Observed health

Status
Healthy
Latest latency
70 ms
Average latency
928 ms
HTTP status
204
Last checked
Reachability
91.7% over 12 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "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"
}

Output schema

{
  "$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"
}