Index onlineMerchant portal
Api Endpoint

StableEmail

Create an inbox on your subdomain ($0.25). Max 100 inboxes, 500 messages each. Message content and attachments retained for 90 days.

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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/subdomain/inbox/create
MIME type
application/json
First seen
2026-10-16T01:50:04.338Z
Last seen
Tags
X402, Email, Messaging, stableemail, Social, communication

WebsiteDocumentationOpenAPI

Payment pricing

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

Payment option 1
0.25 USDC
Atomic price: 250000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.25 USDC
Atomic price: 250000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "payTo": "0xdb5aa553feeb2c3e3d03e8360b36fb0f7e480671"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "250000",
    "payTo": "HvBMG7ezcwDssxXP7DPJJsveyDnvUm2wNySBR5WF2XEY"
  }
]

Observed health

Status
Healthy
Latest latency
75 ms
Average latency
257 ms
HTTP status
204
Last checked
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": [
      "subdomain",
      "localPart"
    ],
    "properties": {
      "forwardTo": {
        "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,}$"
      },
      "localPart": {
        "type": "string",
        "pattern": "^[a-z0-9][a-z0-9._+-]{0,62}[a-z0-9]$",
        "maxLength": 64,
        "minLength": 1
      },
      "subdomain": {
        "type": "string",
        "allOf": [
          {
            "pattern": "^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$"
          },
          {
            "pattern": "^(?!.*--)"
          }
        ]
      }
    }
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json"
}

Output schema

null