API Reference

One key, three products. All requests use Authorization: Bearer $SAGEA_API_KEY — get a key.

Studio — model APIs

Base URL: https://api.sagea.space/v1

• Chat Completions — POST /v1/chat/completions · SAGE Actus, Celer, OSS with tools, streaming, JSON mode
• Text to Speech — POST /v1/audio/speech · Sonus TTS in 30+ languages
• Voice Cloning — POST /v1/audio/clone · custom voice_id from samples
• Streaming Audio — POST /v1/audio/stream · sub-200ms first byte
• OCR Process — POST /v1/ocr/process · ARVA extraction with bounding boxes
• Batch API — POST /v1/batch · async jobs at 50% off

Helios — identity verification

Base URL: https://api.sagea.space/helios

• KYC v1 — POST /helios/kyc/v1 · multipart with front/back images + liveness video
• KYC v2 — POST /helios/kyc/v2 · base64 JSON, portrait match option
• Verification Status & Webhooks — GET /helios/verifications/{id} + callback_url delivery

New to KYC? Start with How Helios works then Run a KYC Request.

MYLO — voice agents

Base URL: https://api.sagea.space/mylo

• Sessions — POST /mylo/sessions · realtime agent over WebSocket
• Outbound Calls — POST /mylo/calls · schedule phone calls
• Transcripts — GET /mylo/sessions/{id}/transcript · turns + recordings

New to agents? Start with MYLO overview.

Errors

Every endpoint returns standard HTTP statuses with a {error: {type, code, message}} body. See the full Errors glossary for all 13 codes and per-product retry guidance.