Pricing

Chirp offers transparent, pay-as-you-go pricing with no hidden fees.

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Phone Numbers

Phone numbers have two cost components: Purchase Fee One-time cost when you acquire a new phone number. Monthly Rental Recurring monthly fee to maintain ownership of the phone number.

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Message Pricing

Messages are billed based on:

• Message type (SMS or MMS)
• Direction (inbound or outbound)
• Phone number type (local, toll-free, short code)
• Destination carrier

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SMS Messages

Text-only messages. Pricing varies by:

• Number type (local, toll-free, short code)
• Carrier (AT&T, T-Mobile, Verizon, etc.)
• Direction (inbound vs outbound)

Typical Range: $0.0079 -$0.015 per message

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MMS Messages

Messages with media (images, videos, audio). MMS is more expensive than SMS. Typical Range: $0.02 -$0.03 per message

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Test Mode is Free

All messages sent using test API keys (sk_test_app_*) are completely free. This includes:

• Messages sent through the Playground
• API calls using test keys
• Webhook testing

There are no limits on test messages.

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Billing

You’re only charged for:

• Phone number rental fees (monthly)
• Messages sent with live API keys (sk_live_app_*)
• Phone number purchase fees (one-time)

You’re not charged for:

• API requests
• Webhook deliveries
• Messages in test mode
• Failed messages

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Volume Discounts

High-volume customers may qualify for discounted rates. Contact our sales team for custom pricing.