Hosted text-to-speech MCP server: 66 voices in 9 languages, long-form narration, podcasts.
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Enroll a custom cloned voice from an audio sample (async). Requires a Pro or active 7-day pass key. Provide exactly one of audio_base64 or audio_url (https). Sample limits: 10 MB max upload; wav, mp3 or m4a; a 10–30 second clean single-speaker recording (enrollment rejects clips shorter than 10 or longer than 30 seconds; trim longer recordings first). Account limits: maximum 3 cloned voices, 5 enrollments per day. Returns a voice_id with status "enrolling" — check list_voices until its status is "ready" (there is no job to poll), then use it in create_podcast (Pro key) or in POST /api/v1/audio/speech (REST, same key).
Display name for the cloned voice.
Required attestation: you confirm you have the recording rights to this audio sample. The server rejects anything but an explicit true.
https URL to the audio sample — fetched server-side, same 10 MB bound.
Sample MIME type — wav, mp3 and m4a are accepted (the server enforces the exact allowlist).
Base64-encoded audio sample (10 MB max decoded).
This tool isn't marked read-only, so it may change something on the server or in an account you connected.
Enroll a custom cloned voice from an audio sample (async). Requires a Pro or active 7-day pass key. Provide exactly one of audio_base64 or audio_url (https). Sample limits: 10 MB max upload; wav, mp3 or m4a; a 10–30 second clean single-speaker recording (enrollment rejects clips shorter than 10 or longer than 30 seconds; trim longer recordings first). Account limits: maximum 3 cloned voices, 5 enrollments per day. Returns a voice_id with status "enrolling" — check list_voices until its status is "ready" (there is no job to poll), then use it in create_podcast (Pro key) or in POST /api/v1/audio/speech (REST, same key).
| Argument | Type | Description |
|---|---|---|
| name* | string | Display name for the cloned voice. |
| consent* | boolean | Required attestation: you confirm you have the recording rights to this audio sample. The server rejects anything but an explicit true. |
| audio_url | string | https URL to the audio sample — fetched server-side, same 10 MB bound. |
| mime_type | string | Sample MIME type — wav, mp3 and m4a are accepted (the server enforces the exact allowlist). |
| audio_base64 | string | Base64-encoded audio sample (10 MB max decoded). |
{
"type": "object",
"oneOf": [
{
"required": [
"audio_base64"
]
},
{
"required": [
"audio_url"
]
}
],
"required": [
"name",
"consent"
],
"properties": {
"name": {
"type": "string",
"description": "Display name for the cloned voice."
},
"consent": {
"type": "boolean",
"const": true,
"description": "Required attestation: you confirm you have the recording rights to this audio sample. The server rejects anything but an explicit true."
},
"audio_url": {
"type": "string",
"description": "https URL to the audio sample — fetched server-side, same 10 MB bound."
},
"mime_type": {
"type": "string",
"default": "audio/wav",
"description": "Sample MIME type — wav, mp3 and m4a are accepted (the server enforces the exact allowlist)."
},
"audio_base64": {
"type": "string",
"description": "Base64-encoded audio sample (10 MB max decoded)."
}
},
"additionalProperties": false
}Create a two-host (A/B) podcast episode as an async job. Requires a Pro subscription key. Up to 60 segments; combined text up to 30,000 characters. voice_a and voice_b set the two speaker voices — your READY cloned voice_* ids are allowed. Returns a job id — poll get_job_status.
| Argument | Type | Description |
|---|---|---|
| format | string | |
| voice_a* | string | Voice id for speaker A — catalog voice or one of your READY cloned voice_* ids. |
| voice_b* | string | Voice id for speaker B. |
| segments* | array | Alternating dialogue segments (max 60). |
{
"type": "object",
"required": [
"segments",
"voice_a",
"voice_b"
],
"properties": {
"format": {
"enum": [
"mp3",
"wav"
],
"type": "string",
"default": "mp3"
},
"voice_a": {
"type": "string",
"description": "Voice id for speaker A — catalog voice or one of your READY cloned voice_* ids."
},
"voice_b": {
"type": "string",
"description": "Voice id for speaker B."
},
"segments": {
"type": "array",
"items": {
"type": "object",
"required": [
"speaker",
"text"
],
"properties": {
"text": {
"type": "string"
},
"speaker": {
"enum": [
"A",
"B"
],
"type": "string"
}
},
"additionalProperties": false
},
"maxItems": 60,
"minItems": 1,
"description": "Alternating dialogue segments (max 60)."
}
},
"additionalProperties": false
}Generate long-form narration (up to 500,000 characters ≈ 9 hours of audio) as an async job. Requires a Pro subscription key. Kokoro narration voices only — Arabic (ar_*) and cloned (voice_*) voices are rejected by the Long-Form engine. Returns a job id — poll get_job_status; parts render progressively and audio_url appears when completed.
| Argument | Type | Description |
|---|---|---|
| tone | string | Tone preset. |
| input* | string | The full script, up to 500,000 characters. |
| pitch | number | Pitch shift in semitones (-4 to 4). |
| speed | number | |
| voice | string | Kokoro voice id — call list_voices for the catalog. |
| format | string |
{
"type": "object",
"required": [
"input"
],
"properties": {
"tone": {
"enum": [
"neutral",
"warm",
"bright",
"bass"
],
"type": "string",
"default": "neutral",
"description": "Tone preset."
},
"input": {
"type": "string",
"description": "The full script, up to 500,000 characters."
},
"pitch": {
"type": "number",
"default": 0,
"maximum": 4,
"minimum": -4,
"description": "Pitch shift in semitones (-4 to 4)."
},
"speed": {
"type": "number",
"default": 1,
"maximum": 2,
"minimum": 0.5
},
"voice": {
"type": "string",
"default": "af_aoede",
"description": "Kokoro voice id — call list_voices for the catalog."
},
"format": {
"enum": [
"mp3",
"wav"
],
"type": "string",
"default": "mp3"
}
},
"additionalProperties": false
}Check the status of a long-form, podcast or tts job owned by this key. Returns status plus audio URL(s) when completed. Audio links are not guaranteed to persist — download promptly.
| Argument | Type | Description |
|---|---|---|
| job_id* | string | Job id returned by an async tool. |
{
"type": "object",
"required": [
"job_id"
],
"properties": {
"job_id": {
"type": "string",
"description": "Job id returned by an async tool."
}
},
"additionalProperties": false
}Check this API key's plan and usage. Free keys see today's used/remaining characters (shared 5,000/day pool, resets at midnight UTC), the 20 requests/minute rate limit and 2-concurrent cap. Pro keys are unlimited (fair use: 10M characters per rolling 30 days, then slowed to 30 requests and 10,000 characters a minute, 10 and 3,000 past 20M, on every surface -- never blocked or billed) at 60 requests/minute.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}List all 66 EasyVoice catalog voices (id, name, language, accent, gender, free/pro tier) plus this key's cloned voices. Call this before text_to_speech or create_podcast to pick voice ids.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}Convert text to a downloadable MP3 or WAV audio file with one of EasyVoice's 66 neural voices. Returns a hosted audio URL (no inline audio). Per-call limit: 8,000 characters (4,000 for Arabic ar_* voices) — text over the limit is automatically queued as a background job instead of erroring; poll get_job_status with the returned job_id for the result. Free keys can use the 12 free voices; Pro ($9.99/mo) unlocks the full catalog. A Pro account past the fair-use line is paced in characters a minute: a call may wait up to 20 seconds, and one that would wait longer returns a tool error saying when to retry.
| Argument | Type | Description |
|---|---|---|
| text* | string | The text to speak. |
| speed | number | |
| voice | string | Voice id — call list_voices for the catalog. |
| format | string |
{
"type": "object",
"required": [
"text"
],
"properties": {
"text": {
"type": "string",
"description": "The text to speak."
},
"speed": {
"type": "number",
"default": 1,
"maximum": 2,
"minimum": 0.5
},
"voice": {
"type": "string",
"default": "af_aoede",
"description": "Voice id — call list_voices for the catalog."
},
"format": {
"enum": [
"mp3",
"wav"
],
"type": "string",
"default": "mp3"
}
},
"additionalProperties": false
}