Speech-to-text transcription
Speech-to-text transcription · one locally validated audio upload · 0% service fee launch promotion
Answeringour last check, 2026-09-24
1 of 1checks answered this week
894 msmedian answer time
$0.005034listed price per call
$0.005034price 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://onchainrouter.dev/v1/audio/transcriptions
| Category | Image and media |
|---|---|
| Provider host | onchainrouter.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005034 | 894 ms |
Example input (from the provider)
{
"body": {
"audio_base64": "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",
"file_format": "other",
"model": "elevenlabs/scribe-v2",
"response_format": "json"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"audio_base64": {
"description": "Canonical RFC 4648 Base64 audio without a data-URL prefix or whitespace.",
"format": "byte",
"maxLength": 34952536,
"minLength": 4,
"type": "string"
},
"file_format": {
"default": "other",
"enum": [
"other"
],
"type": "string"
},
"model": {
"enum": [
"elevenlabs/scribe-v2"
],
"type": "string"
},
"response_format": {
"enum": [
"json",
"verbose_json"
],
"type": "string"
}
},
"required": [
"audio_base64",
"model"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"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"
}