Introductory pricing
Introductory pricing. Catalogue narration: 0.005 USDC on Base, up to 1,000 characters, MP3. Seven English voices. No account, reference upload or human approval. Read https://api.neurodynamic.tech/narration. Authorisation verified before work; settlement after successful audio. Retry identical body and proof for one hour without a second charge. Quoted tier price: 0.005 USDC.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
933 msmedian answer time
$0.005listed price per call
$0.005price 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.neurodynamic.tech/v1/audio/speech
| Category | Image and media |
|---|---|
| Provider host | api.neurodynamic.tech |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 4 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005 | 933 ms |
Example input (from the provider)
{
"body": {
"input": "Hello from NeuroDynamic.",
"voice": "bf_emma"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"input": {
"maxLength": 1000,
"type": "string"
},
"model": {
"enum": [
"kokoro"
]
},
"response_format": {
"enum": [
"mp3"
]
},
"speed": {
"enum": [
1
]
},
"stream": {
"enum": [
false
]
},
"voice": {
"enum": [
"af_heart",
"af_bella",
"bf_emma",
"bf_alice",
"bm_george",
"am_michael",
"am_fenrir"
],
"type": "string"
}
},
"required": [
"input"
],
"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": {
"description": "Binary audio/mpeg; PAYMENT-RESPONSE receipt header",
"type": "string"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}