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You will obtain clear, affirmative consent from every person you text before sending them a message. Read our Consent & Acceptable Use Policy.

You will only text known, consented phone numbers—your own numbers or numbers from people who have explicitly opted in.

You will not use this API for mass messaging, cold outreach, marketing, or contacting people who have not given consent.

You accept the Terms & Conditions and Privacy Policy, including rate limits, volume caps, and account responsibilities.