Integrate Developer APIs Online Free
Sable Tool Kit's Developer API portal provides a free, self-hosted reference playground to integrate audio transcription (Whisper), email list validation, temp mail generation, and multi-page PDF processing tools into your application in seconds. You can verify payloads, test responses, and copy pre-built integration templates with zero signup. API calls consume credits on demand with strict transient memory security and zero data logs.
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API Categories
Select a service to explore endpoints
AI Whisper Transcription
Convert audio files (MP3, WAV, M4A, FLAC, OGG, WEBM) to accurate text transcripts.
Description
Upload an audio file to queue it for speech-to-text processing.
Request Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| file | FormData (Binary) | Required | The audio file to transcribe (Max 200MB) |
| language | Query string | Optional | Language code (e.g. 'en', 'es'). Whisper will auto-detect if omitted. |
Try It Out (Live Testing)
API Key Required for Live Request// Click 'Execute Live Request' above to see live API output response
Example Response
{
"job_id": "job_e7b28f81-2c1a-4d3b-9a8c-7f5b8c9d0a1b",
"status": "pending",
"original_filename": "interview.mp3"
}Integration Snippets
curl -X POST https://api.sablebear.com/api/services/whisper/transcribe \ -H "X-Api-Key: YOUR_API_KEY" \ -F "file=@/path/to/audio.mp3" \ -F "language=en"
How to Integrate Sable Tool Kit APIs
Get an API Key
Log in and navigate to Settings to generate your secret developer API key instantly.
Top up Credits
Buy credits (e.g. 0.1 credit/whisper call, or page scale conversion credits) with zero monthly fees.
Configure Headers
Include the X-Api-Key: your_key header in every outbound HTTP request from your server.
Handle Responses
Parse standard JSON status objects, retrieve binary download streams, or parse validation responses.
Why Use Sable Tool Kit's Developer APIs
Sable Tool Kit's developer API suite is built to streamline automation. Traditional utilities lock teams into expensive subscriptions or present rigid paywalls. Our credit-based model lets freelancers, developers, and growing teams pay precisely for what they consume: whether it is transcribing audio at a low rate of 0.1 credit per call, or batch processing multi-page files on a sliding credit scale. By running a strict transient storage and zero log retention policy, your application maintains privacy and data security without self-hosting complex models.
Developer API FAQs
Will my account API credits expire?
No. Credits purchased on Sable Tool Kit never expire and remain permanently active in your wallet balance until consumed by API calls.
How are multi-page PDF files charged?
We calculate page count from the uploaded binary. The credit cost is 10 credits for 1 page, 18 credits for 2 pages, 27 credits for 3 pages, and 36 credits for 4 pages, scaling down per-page costs dynamically.
Is the audio transcription job synchronous?
No. The Whisper transcription API operates asynchronously. The post request yields a job_id which you poll via the GET endpoint to fetch complete text results.
Do you store sensitive request payloads?
No. All file conversions, uploads, and email verifications are processed in transient memory sandboxes and permanently deleted from our servers immediately after the API response is dispatched.
How are free vs. paid services rate-limited and charged?
WebAssembly services run entirely client-side in the browser and are fully free. For other free server-side services, users get 3 free requests per day. Subsequent calls (from the 4th request onward) require credits. Paid services consume credits on every request.