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Sahay Developer API

Changelog

2026-11-04: v1 launch

Section titled “2026-11-04: v1 launch”

The first public version of the Developer API.

  • API key authentication with Authorization: Bearer or X-API-Key.
  • Voices and agents: list voices and agents, read and replace a draft, publish, and roll back.
  • Calls: place a call with an Idempotency-Key, list calls, read a call with its transcript, summary and outcome, and get a recording link.
  • Campaigns: create, update, add contacts, list contacts, start, pause, resume and stop.
  • Webhooks: call.completed, campaign.contact.completed and campaign.completed, signed with Sahay-Signature.
  • Per-organization limits of 30 requests per minute and 2 concurrent live calls by default.