BlockRun
AI tools / Voice Call API

Have an agent place a real phone call and pay for it itself

Place outbound AI voice calls and buy dedicated numbers through one endpoint, billed per call and per number in USDC. No telephony contract and no minimum.

The call

One endpoint, priced in dollars before it runs and settled in USDC. No API key and no account — the request pays for itself.

POST /api/v1/voice/call
Host: blockrun.ai

Why per call

No seat, no minimum, no contract per vendor. Each request is quoted in dollars before it runs and settles on-chain, so an agent can pay for its own work without a human holding a credit card. How the payment works →

Questions

Can an agent place a call unattended?

Yes. The call is a paid request like any other, so an agent with a funded wallet can make one.

How is it billed?

Per call, plus a separate price for a dedicated number, both shown on this page.

Can I bring my own caller ID?

Yes — BYOT caller-ID is supported, along with fraud lookups on a number.

Which countries are covered?

US and Canada numbers today; the docs carry the current coverage.