Early access launch

• Sandbox-first API surface: /v1/messages (send, get, list, Idempotency-Key support), /v1/numbers (search, purchase, release), /v1/lookup (+/spam), /v1/events, and POST /v1/test/inbound for simulating inbound SMS.
• Self-serve console at /console: instant free sandbox keys, no card.
• Live mode (after live-access review): real number provisioning across 200+ US/Canada area codes and real SMS delivery.
• Agent surface: OpenAPI (yaml · json), llms.txt, single-file docs (llms-full.txt), markdown twins of every docs page, an MCP server, and an agent skill (simplesms).

Known limitations

• Live delivery receipts are not yet emitted; a live message's status stays sent (sandbox simulates the full lifecycle). Webhook endpoints shipped 2026-08-13.