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Our pricing philosophy

At OpenPhone, we believe in transparent and fair pricing. Sometimes it can be hard to understand the true cost of something when it’s buried in the fine print. We are committed to helping you clearly understand and manage your costs when using our platform.

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Core pricing model

Our pricing is based on message segments, making it easy to calculate costs:

Local (US and Canada) SMS

$0.01 per segment

International SMS

$0.01 + country-specific rate per segment

Rates vary by destination country

For detailed international rates by country, see our International Pricing Guide.

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Understanding message segments

A message segment is our basic billing unit. Learn more below:

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API message types

You’re only charged for outgoing API-powered messages, which include:

Direct API Usage

Messages sent through direct API calls

Integration Messages

Messages sent via applications built with our API

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How our billing works

We use a credit-based system for all API messaging charges:
1

Purchase credits

Add funds to your account through the “Plans & Billing” tab
2

Automatic deduction

Credits are automatically deducted when messages are sent
3

Credit management

Monitor your balance and enable auto-recharge to prevent service interruptions

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Important service notes

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Requirements & limitations

  1. An active OpenPhone subscription is required for API access.
  2. MMS is not supported in the current API version.
  3. Partial credits cannot be used for sending messages; the API will return an error.
If your credit balance is insufficient for a message’s full cost, the API will return an error and the message won’t be sent.

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Support & assistance

Need help understanding our pricing or managing your costs? Our team is here to help. Email us at [email protected] with any questions.