文字转语音（TTS）
API 配置
保存后下方「Try It」面板会自动携带此 API Key 发送真实请求。
Base: api.xrtoken.net
将文字转换为语音音频。计费方式：按字符数计费。
响应为音频二进制流，Content-Type 通常为 audio/mpeg。
平台通过 model 字段自动选择最优传输协议：
- HTTP Chunked（
seed-tts-2.0）：兼容性最好，适合大多数场景 - WebSocket 单向流式（
seed-tts-2.0-ws）：原始二进制音频，延迟更低 - WebSocket 双向流式（
seed-tts-2.0-bi）：完整会话管理，自动分句，长文本语音效果最佳
Authorization
BearerAuth AuthorizationBearer <token>
API 密钥认证（OpenAI 格式）。在 Authorization 请求头中传入：
Authorization: Bearer tr-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
In: header
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
application/json
application/json
application/json
application/json
application/json
curl -X post "https://api.xrtoken.net/v1/audio/speech" \ -H "Content-Type: application/json" \ -d '{ "model": "volcengine/seed-tts-2.0", "input": "你好，欢迎使用 XRToken。" }'"string"{
"error": "model field is required",
"type": "invalid_request_error"
}{
"error": "invalid or missing API key",
"type": "auth_error"
}{
"error": "insufficient balance -- please top up or upgrade your plan",
"type": "billing_error"
}{
"error": "rate limit exceeded",
"type": "rate_limit_error"
}{
"error": "upstream provider error",
"type": "server_error"
}