There is no free tier. Every project, sandbox included, needs a card on file and a plan (console → Platform API → Billing) before it can do billable work; until then billable requests answer 402 payment_method_required. See Billing. Using the API means accepting the Developer Terms and the Acceptable Use Policy.

Plans

The Growth uptime figure is a target, not a service level agreement. Only an Enterprise contract carries an SLA.

Usage

Each meter matches a meter value in Usage, so GET /v1/usage shows the quantities a bill is built from.

Limits that protect your bill

  • Every project has a monthly spend cap ($100 by default once a card is on file). Raise or lower it per project in the console under Platform API → Projects.
  • A card on file is required before any billable work: agents, conversations, calls, texts, numbers and computers.
  • International calling is off by default.
  • Concurrent calls are capped per plan (see the table above).
Prices do not include taxes. No plan promises call answer rates, text deliverability, or business results.