{"entry":{"slug":"notify-api","name":"Notify","category":"api","summary":"Send transactional email over HTTP with a single POST, a sandbox test endpoint, and an official MCP server.","description":"Notify is a transactional email API for developers and AI agents. The canonical send endpoint is POST https://notify.cx/api/email/send. Authenticate with an API key in the x-api-key header. The JSON body requires to, from, subject, and one of html, message, or text (prefer html).\n\nProduction sending from a custom from address requires a verified domain (SPF, DKIM and DMARC). Until the domain verifies, POST https://notify.cx/api/email/send/test accepts the same body, logs a TEST row, does not deliver, and does not count against quota.\n\nNot for newsletters, drip campaigns or drag-and-drop template studios. Official MCP server: npm package notifycx-mcp (npx -y notifycx-mcp), registry name io.github.notifycx/notifycx-mcp. Skills repo: https://github.com/notifycx/notify-skills. Docs: https://notify.cx/docs","auth_mode":"API key header","endpoint":"https://notify.cx/api/email/send","docs_url":"https://notify.cx/docs","tags":["email","messaging"],"capabilities":["send-email","transactional-email"],"auth_params":[{"name":"x-api-key","location":"header","required":true}],"input_format":"application/json","output_format":"application/json","rate_limit":"1,000 emails/month on the free plan, no daily cap","pricing":"Free 1,000 emails/month, then $10/mo for 10,000 or $50/mo for 100,000","invocation_example":"curl -X POST https://notify.cx/api/email/send \\\n  -H \"Content-Type: application/json\" \\\n  -H \"x-api-key: $NOTIFY_API_KEY\" \\\n  -d '{\n    \"to\": \"user@example.com\",\n    \"from\": \"noreply@your-verified-domain.com\",\n    \"subject\": \"Hello from your app\",\n    \"html\": \"<p>It works.</p>\"\n  }'","verified":false,"verified_at":null,"featured":false,"checks_total":3,"checks_ok":3,"avg_latency_ms":444,"reports_count":0,"health_ok":true,"health_status_code":405,"health_checked_at":"2026-11-14T03:17:19.15+00:00","health_latency_ms":468,"probe_url":null,"capability_ok":null,"schema_ok":null,"data_ok":null,"down_since":null},"watch":{"hint":"Follow \"notify-api\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"notify-api\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}