Programmable SMS API

Reach every customer with a programmable SMS API

Send transactional, bulk, and marketing text messages from a single REST API, and receive replies back. Built for teams that need reliable, global, developer-first SMS delivery.

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Built for developers

Everything you need to send & receive SMS at scale

Coverage

Global delivery

Send single or bulk SMS to phone numbers across 90+ countries in E.164 format. No carrier agreements required.

Messaging

Two-way conversations

Receive replies on your SMS-enabled numbers via webhook and continue the conversation in the 2Chat inbox or programmatically.

Reliability

Delivery status & reports

Track every message with real-time delivery receipts and detailed error codes when a message can't be delivered.

Developers

Simple REST API

Authenticate with one API key header and ship in minutes. No SDK required, clear responses, no hidden quirks.

Automation

No-code ready

Add SMS integration to Zapier, Make, n8n, and other automation platforms to trigger texts without writing code.

Virtual phone numbers

Get an SMS-enabled number in minutes

Sending and receiving SMS with 2Chat requires a virtual phone number with SMS capability. Browse and activate two-way SMS numbers from 90+ countries directly from your dashboard.

Browse SMS-enabled numbers

API reference

Send and receive SMS with one REST API

Send outbound texts, receive inbound replies, and read back entire SMS conversations over a single REST API. Works in any language or framework, a complete two-way SMS API with just your API key.

POST/open/sms/send

Send an SMS

Send a text message from one of your SMS-enabled numbers to any phone in the world. Returns a message UUID for tracking delivery.

View endpoint documentation

curl -X POST \ "https://api.p.2chat.io/open/sms/send" \ -H "X-User-API-Key: your_api_key_here" \ -H "Content-Type: application/json" \ -d '{ "from_number": "+17137157533", "to_number": "+442079460958", "text": "Hello via SMS from 2Chat!" }'

GET/open/sms/messages/{channel_uuid}/{contact_number}

Read a conversation

Fetch the full inbound and outbound message history with a contact, sorted by time, each message tagged with its direction.