Send a Telegram text message from a connected session. Send a JSON body with the recipient as to and the message as text. to accepts @username or a bare username, +phone in full international format, or me for the account's own Saved Messages; a bare phone number is tried as a fallback. A bare numeric user ID is not supported unless the account already knows the peer. The session must have completed login.

API Features

Flexible addressing Send by @username, +phone, or me — no prior chat required

Saved Messages support Use me as the recipient for notes, debugging, or self-delivery

Simple payload Just to and text in a JSON body

Live API Demo

POST /api/project/telegram-messaging/send-message

API Response (JSON)

{}

curl -X POST 'https://api.opendata-api.com/api/project/telegram-messaging/send-message?key=<API_KEY>&sessionId=<sessionId>' \ -H 'Content-Type: application/json' \ -d '{"body":"{\"to\":\"@username\",\"text\":\"Hello!\"}"}'

curl -X POST 'https://api.opendata-api.com/api/project/telegram-messaging/send-message?key=<API_KEY>&sessionId=<sessionId>' \
  -H 'Content-Type: application/json' \
  -d '{"body":"{\"to\":\"@username\",\"text\":\"Hello!\"}"}'

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Need Help?

If you encounter API issues or need other API requirements, please contact us.

Use Cases

Transactional notifications: order confirmations, shipping updates, OTP delivery
Support bots: auto-replies, ticket updates, after-sales follow-up
Marketing automation: trigger message pushes from n8n, Zapier, or Make (follow Telegram's rules)

Related operations

Guides

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Telegram: Send a Text Message