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seven.io SMS API

by seven.io

SMS gateway API for sending text messages worldwide, checking account balances, managing contacts, validating phone numbers, and setting up webhooks.

communicationsmsmessaging

Quick Reference

Base URL https://gateway.seven.io/api Auth type API Key Header Auth header X-Api-Key: YOUR_API_KEY Rate limit See documentation Pricing Enterprise / contact sales Free quota None Documentation https://help.seven.io/en/api-docs Endpoint status Server online — HTTP 404 — server is online but path returned an error (may require auth)2.61s (checked Mar 29, 2026) Builder score C 57% builder-friendly
Pricing
75
Latency
20
Depth
70

Authentication

API key in the X-Api-Key header

X-Api-Key: YOUR_API_KEY

Pricing

Model pay-as-you-go Starting price Enterprise / contact sales Free quota None

Pay-per-message pricing; free credits on signup.

Key Endpoints

MethodPathDescription
POST /sms Send an SMS
GET /balance Get account balance
GET /contacts List contacts
POST /contacts Create a contact
POST /lookup Phone number lookup
GET /hooks List webhooks
POST /hooks Create a webhook
GET /analytics Get usage analytics

Sample Request

curl -X POST 'https://gateway.seven.io/api/sms' \
  -H 'X-Api-Key: YOUR_API_KEY' \
  -d 'to=+1234567890&text=Hello+World&from=MyApp'

Sample Response

{"success":"100","total_price":0.049,"messages":[{"id":"abc123","status":"100","recipient":"+1234567890"}]}

Data sourced from API Map. Always verify pricing and rate limits against the official seven.io documentation.