{
  "generated_at": "2026-04-24T15:01:35.625676+00:00",
  "slug": "email-send-production-up-railway-app-api-send",
  "title": "Email Send \u00b7 Send transactional emails",
  "url": "https://email-send-production.up.railway.app/api/send",
  "category": "tools",
  "summary": "Sends transactional emails with configurable sender, recipient, subject, and body content in plain text or HTML format.",
  "seo": {
    "title": "Transactional Email API - SMTP Alternative | x402",
    "description": "Send emails via API with plain text or HTML body. No API keys, pay per send with USDC. 0.003 USDC on Base."
  },
  "use_cases": [
    "Send automated notifications from agents",
    "Deliver transactional emails without SMTP setup",
    "Build email alerting systems",
    "Generate HTML email reports programmatically"
  ],
  "ideal_buyer": "AI agents, automation workflows, and applications needing simple transactional email delivery without traditional email infrastructure.",
  "example_prompt": "Send an email to user@example.com with subject 'Alert' and body 'Your task is complete'.",
  "example_request_body": {
    "to": "user@example.com",
    "body": "Your task is complete",
    "from": "noreply@x402.dev",
    "subject": "Alert"
  },
  "risk_notes": [],
  "pricing_sanity": {
    "flag": "cheap",
    "ratio": 0.15,
    "median_category_atomic": 20000
  },
  "pricing_review_required": false,
  "pricing_decimal_suspect": false,
  "trust_tier": "indexed_external",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0x6e8b64638b24c6d625b045dd353120d850064e2e",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "3000",
      "max_timeout_seconds": 300,
      "verified": false,
      "hints": {
        "input": {
          "body": {
            "type": "object",
            "required": [
              "to",
              "subject",
              "body"
            ],
            "properties": {
              "to": {
                "type": "string",
                "description": "Recipient email address"
              },
              "body": {
                "type": "string",
                "description": "Email body content (plain text)"
              },
              "from": {
                "type": "string",
                "description": "Sender email address (default: noreply@x402.dev)"
              },
              "html": {
                "type": "string",
                "description": "Email body content (HTML, optional \u00e2\u0080\u0094 overrides body)"
              },
              "subject": {
                "type": "string",
                "description": "Email subject line"
              }
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "messageId",
              "status",
              "to",
              "subject"
            ],
            "properties": {
              "to": {
                "type": "string",
                "description": "Recipient email"
              },
              "from": {
                "type": "string",
                "description": "Sender email"
              },
              "mode": {
                "type": "string",
                "description": "Send mode (live or mock)"
              },
              "status": {
                "type": "string",
                "description": "Send status (sent)"
              },
              "subject": {
                "type": "string",
                "description": "Email subject"
              },
              "messageId": {
                "type": "string",
                "description": "Email message ID"
              },
              "timestamp": {
                "type": "string",
                "description": "ISO 8601 timestamp"
              },
              "bodyLength": {
                "type": "number",
                "description": "Body content length"
              },
              "contentType": {
                "type": "string",
                "description": "Content type (html or text)"
              }
            }
          },
          "example": {}
        }
      }
    }
  ],
  "origin": {
    "slug": "email-send-production-up-railway-app",
    "host": "email-send-production.up.railway.app",
    "title": "Email Send Production API",
    "description": "Railway-hosted email sending service. No public documentation available; endpoints may require authentication or specific routing.",
    "url": "https://email-send-production.up.railway.app",
    "favicon": "https://email-send-production.up.railway.app/favicon.ico"
  },
  "json_ld": {
    "@id": "https://x402all.com/resource/email-send-production-up-railway-app-api-send",
    "url": "https://x402all.com/resource/email-send-production-up-railway-app-api-send",
    "name": "Email Send \u00b7 Send transactional emails",
    "@type": "WebAPI",
    "offers": {
      "url": "https://x402all.com/resource/email-send-production-up-railway-app-api-send",
      "@type": "Offer",
      "price": "0.003",
      "availability": "https://schema.org/InStock",
      "priceCurrency": "USDC",
      "priceSpecification": {
        "@type": "UnitPriceSpecification",
        "price": "0.003000",
        "unitText": "call",
        "priceCurrency": "USDC"
      },
      "eligibleCustomerType": "Agent",
      "additionalProperty": [
        {
          "@type": "PropertyValue",
          "name": "paymentNetwork",
          "value": "base"
        },
        {
          "@type": "PropertyValue",
          "name": "paymentAsset",
          "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        }
      ]
    },
    "sameAs": "https://email-send-production.up.railway.app/api/send",
    "@context": "https://schema.org",
    "provider": {
      "@id": "https://x402all.com/server/email-send-production-up-railway-app",
      "url": "https://email-send-production.up.railway.app",
      "name": "Email Send Production API",
      "@type": "Organization"
    },
    "identifier": "email-send-production-up-railway-app-api-send",
    "description": "Send emails via API with plain text or HTML body. No API keys, pay per send with USDC. 0.003 USDC on Base.",
    "potentialAction": {
      "@type": "BuyAction",
      "target": "https://axon402.com/test-buy?resource=email-send-production-up-railway-app-api-send",
      "description": "Test-buy this endpoint on AXON"
    },
    "applicationCategory": "tools"
  },
  "axon_deep_link": "https://axon402.com/test-buy?resource=email-send-production-up-railway-app-api-send"
}