Text-to-speech
Text-to-speech: turn up to 2500 characters of English text into a natural voice WAV file using self-hosted open-source Piper voices. Use when an agent needs spoken audio for a message, video or notification. POST JSON {text, voice_id?}. Returns audio/wav bytes. From 0.025 USDC per call.
Answeringour last check, 2026-09-29
1 of 1checks answered this week
2057 msmedian answer time
n/alisted price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.bilbop.org/v1/tts
| Category | Image and media |
|---|---|
| Provider host | api.bilbop.org |
| Networks | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-29 | valid payment request | 402 | 2057 ms |
Example input (from the provider)
{
"body": {
"text": "Hello from Piper",
"voice_id": "en_US-lessac-medium"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"text": {
"description": "Text to speak (max 2500 chars)",
"maxLength": 2500,
"minLength": 1,
"type": "string"
},
"voice_id": {
"description": "Optional Piper voice id",
"type": "string"
}
},
"required": [
"text"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}