Api Endpoint

StableEmail

Send an email from "StableEmail" <relay@stableemail.dev> ($0.02)

Open interactive test console

Offering

Provider: StableEmail
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Social Intelligence
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://stableemail.dev/api/send
MIME type: application/json
First seen: 2026-10-16T01:50:04.338Z
Last seen: 2026-11-04T17:20:15.038Z
Tags: X402, Email, Messaging, stableemail, Social, communication

Website Documentation OpenAPI

Payment pricing

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

Payment option 1: 0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2: 0.02 USDC
Atomic price: 20000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0xdb5aa553feeb2c3e3d03e8360b36fb0f7e480671"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "20000",
    "payTo": "HvBMG7ezcwDssxXP7DPJJsveyDnvUm2wNySBR5WF2XEY"
  }
]

Observed health

Status: Healthy
Latest latency: 55 ms
Average latency: 264 ms
HTTP status: 204
Last checked: 2026-11-02T09:25:59.145Z
Reachability: 100% over 13 checks

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

Input schema

{
  "body": {
    "type": "object",
    "required": [
      "to",
      "subject"
    ],
    "properties": {
      "cc": {
        "type": "array",
        "items": {
          "type": "string",
          "format": "email",
          "pattern": "^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"
        },
        "maxItems": 50,
        "minItems": 1
      },
      "to": {
        "type": "array",
        "items": {
          "type": "string",
          "format": "email",
          "pattern": "^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"
        },
        "maxItems": 50,
        "minItems": 1
      },
      "html": {
        "type": "string",
        "maxLength": 256000
      },
      "text": {
        "type": "string",
        "maxLength": 256000
      },
      "replyTo": {
        "type": "string",
        "format": "email",
        "pattern": "^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"
      },
      "subject": {
        "type": "string",
        "maxLength": 998,
        "minLength": 1
      },
      "attachments": {
        "type": "array",
        "items": {
          "type": "object",
          "required": [
            "content",
            "contentType",
            "filename"
          ],
          "properties": {
            "content": {
              "type": "string",
              "maxLength": 5000000
            },
            "filename": {
              "type": "string",
              "maxLength": 255,
              "minLength": 1
            },
            "contentType": {
              "type": "string",
              "maxLength": 255,
              "minLength": 1
            }
          }
        },
        "maxItems": 5
      }
    }
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json"
}

Output schema

null