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BitFractal Transcriber Speech to Text (STT) API

AI powered Speech to Text (STT) API for audio transcription and captioning integrated with your apps

Category
Machine Learning
Registry category
Software DevelopmentAPIs & SDKs
Vendor
BitFractal
Location
Not disclosed
Reviews
1 reviews on record
Listed on
Microsoft Marketplace
Pricing
7 plans listed
Overall Provenance
4.2/10Moderate
High 7–10Moderate 3–6.9Low 0–2.9

Each fact carries one Provenance score: the average of its Disclosure and Evidence scores, the same rule the page uses for the overall score. Click any score to see the math behind it.

Vendor Provenance

Who actually operates this agent.

2.1 / 10
Data element
Answer
Provenance
Source
Legal entity
BitFractal
Publisher name on the listing; not matched to an outside company record
High
HQ address
Not disclosed
No headquarters on the listing or an outside record
Low
No source on record
Ownership
Not disclosed
No ownership on record
Low
No source on record
Industry
Not disclosed
Low
No source on record
Employee count
Not disclosed
Low
No source on record
Founded
Not disclosed
Low
No source on record
Revenue
Not disclosed
Low
No source on record
About
AI powered Speech to Text (STT) API for audio transcription and captioning integrated with your apps
Publisher description
High

Build Provenance

What the agent is built on.

4.4 / 10
Data element
Answer
Provenance
Source
Foundation model
Not disclosed on this listing
Low
No source on record
Training data (model)
Not disclosed on this listing
No source discloses model training data
Low
No source on record
Agent framework / tools
Microsoft Graph
From the certification page
High
Hosting model
SaaS, hosted by the vendor
Certification page: Paas; cloud providers: Azure
High
Version history
1.0.0
Registry saw 4 distinct listing states across 11 captures
High

Reach Provenance

How the agent is distributed and adopted.

5.8 / 10
Data element
Answer
Provenance
Source
Distribution channel(s)
Microsoft Marketplace
Via SaaS
High
Review volume & rating
1 on the marketplace (5)
One source with a review count above zero
High
Comments (pros)
Not available
No review text on record, so no pros could be drawn from user comments
—
No source on record
Comments (cons)
Not available
No review text on record, so no cons could be drawn from user comments
—
No source on record
Listing tenure
Not disclosed
No listed since date; last updated 2026-06-10
—
No source on record
Multi-channel presence
Single-channel
Listed on Microsoft Marketplace only in the registry
High
Public community signal
Not disclosed
No public GitHub, Discord or community metrics found
Low
No source on record
# installs
Not reported
Popularity index 0.25 on the marketplace; not an install count
—
No source on record
Listing type
Self attested app
From the listing
High

Data Provenance

What the vendor discloses about data handling.

7.4 / 10
Data element
Answer
Provenance
Source
Operational data sources
User Profile Data (DisplayName, Email, ObjectId, TenantId)
From the certification page
High
Data residency
United States of America
From the certification page
High
Retention & deletion
Data retained after account termination: More than 90days
From the certification page
High
Published documentation
Legal links on the listing: Privacy Policy, License Terms
Links on the listing; documents not fetched by the registry
High
Data access requirements
1 permission scopes requested
User.Read
High

Compliance Provenance

What standards the vendor meets, and who verified them.

1.3 / 10
Data element
Answer
Provenance
Source
Security
SOC 2
None on record
Low
No source on record
ISO/IEC 27001
None on record
Low
No source on record
ISO/IEC 27002
None on record
—
No source on record
ISO/IEC 27017
None on record
—
No source on record
SOC 3
None on record
—
No source on record
CSA STAR
None on record
—
No source on record
Privacy
GDPR
None on record
Low
No source on record
COPPA
None on record
—
No source on record
FERPA
None on record
—
No source on record
ISO/IEC 27018
None on record
—
No source on record
Health
HIPAA
None on record
Low
No source on record
HITRUST CSF
None on record
—
No source on record
Financial
SOC 1
None on record
—
No source on record
PCI DSS
None on record
—
No source on record
SOX
None on record
—
No source on record
Government
FedRAMP
Not found on the FedRAMP Marketplace
Checked by the vendor's web domain on 2026-08-27
Low
CMMC
None on record
Low
No source on record
NIST SP 800-171
None on record
—
No source on record
AI
NIST AI RMF
None on record
Low
No source on record
Platform
3rd party certification
Microsoft 365 App Certification (self attested)
Certification page hosted by the marketplace operator
High

What the publisher says

BitFractal Speech to Text (STT) API helps professionals, across Media & Telco, Education, Professional Services, Travel, and other industries, create engaging content and experiences, creating captions and transcriptions from a variety of languages and dialects, producing high-quality results for a fraction of the cost and time of using human-base transcription. The generated content can then be used within your CRM, IVRs, Apps, and more.

  • Designed to be easy to use and integrate. Just one API call and that's it, your audio clip is transcribed.
  • Supports to over 140 languages.
  • Supports a variety of audio formats as input, including WAV, MP3, OGG, OPUS, and WEBM in many different bit and sample rates.
  • Generate accurate transcriptions along with vtt (time offset and duration of each sentence) output to easily use them as captions.
  • Included profanity filter to handle unwanted scenarios.
  • Add your specific business terms as parameters to improve recognition.
  • Available in data centers in the US, Europe, and Brazil. Other datacenters can be added upon requests to support@bitfractal.com.
  • Can be used along with Power Automate, Azure Logic Apps, Zapier and other orchestrators to easily connect to different system in a low-code format.
  • This is a 100% SaaS offering, NO Azure subscription needed. Upon subscribing you'll receive an email with your access keys and detailed documentation with sample codes in multiple languages to start using it right away

Check our APIs documentation here and see how easy it is to take your solutions to the next level.

Show the rest of the publisher’s description (7 more lines)

Using Microsoft Azure Cognitive Services, combining Speech and Text services, BitFractal STT API is a standalone, purpose-built programming interface to create rich transcriptions from a variety of different languages and speaking styles.

If you also need advanced Text to Speech capability, check our TTS API here: BitFractal

TTS API on AppSource

For a full app experience, inside Microsoft Teams, M365, or Outlook, also add the BitFractal Studio (free trials of BitFractal Studio available in the app) to your subscription.

And if you need an end-to-end solution, combining Text to Speech + OpenAI Chat GPT + Speech to Text, all in on single and easy-to-use API call, make sure you try our most advanced solution: Conversational AI API for IVRs, SMS, and WhatsApp.

BitFractal removes the complexity of advanced AI technologies, by infusing them into productivity tools in a way that becomes natural for business users to benefit from them without having to worry about the ins and outs of the underlying technology stack. It just works and that’s what matters for users.

After you subscribe, make sure you keep an eye out for an email from info@bitfractal.com with your access code and link to activate your subscription.

Preview

5 images

Plans and pricing

7 plans listed

BitFractal STT API - 10hFirst month free, then $15.00/month Access to BitFractal Speech-to-Text API with included capacity of 10 hours transcribed per month.
BitFractal STT API - 100h$150.00/month Access to BitFractal Speech-to-Text API with included capacity of 100 hours transcribed per month.
BitFractal STT API - 500h$750.00/month Access to BitFractal Speech-to-Text API with included capacity of 500 hours transcribed per month.
BitFractal STT API - 1000h$1,500.00/month Access to BitFractal Speech-to-Text API with included capacity of 1,000 hours transcribed per month.
BitFractal STT API - 2000h$2,400.00/month Access to BitFractal Speech-to-Text API with included capacity of 2,000 hours transcribed per month.
BitFractal STT API - 10000h$9,750.00/month Access to BitFractal Speech-to-Text API with included capacity of 10,000 hours transcribed per month.
BitFractal STT API - 50000h$37,500.00/month Access to BitFractal Speech-to-Text API with included capacity of 50,000 hours transcribed per month.

Linked repositories

Unknown

Unknown means this listing does not publish a repository. It is not a statement that the code is closed.

Publisher resources

Sources

Reading the score

Disclosure · how many sources corroborate it

NoneNo source has it. Shown red, because Unknown means Unknown.
1 sourceA single place has it. A listing and its certification page and policy docs on one marketplace count as one source.
2+ contestedTwo or more sources cover it but they do not agree. The disagreement is shown, never dropped.
2+ agreeingTwo or more genuinely separate sources agree: another marketplace, or an outside record.
Steps below are possible but not automated yet, so today they sit open.
SettleTop confirmedSettleTop confirms it directly.

Evidence · what kind of evidence backs it

NoneNo source discloses it.
PublicPublicly available info, such as reviews, listing age, or vendor firmographics like legal entity and headquarters.
Vendor statedThe vendor's own claim on its marketplace listing, website, or policy documents.
Self-attestedThe vendor's self-attested certification or operator program, a marketplace program rather than an independent audit.
Steps below are possible but not automated yet, so today they sit open.
Vendor providedThe vendor hands SettleTop the underlying material, such as an SBOM or a data policy.
Vendor attestedThe vendor signs an attestation to SettleTop.
SettleTop verifiedSettleTop verifies it directly.

The SettleTop steps above are possible but not automated yet, so today they sit open and a perfect 10 is out of reach. Open information like firmographics and reach has fewer steps to climb, so it sits a little higher for the same visible evidence.

Information shown here reflects the best available information at the time of assessment and may be incomplete, outdated, or subject to change. It should be independently verified before being relied upon for any decision. SettleTop is not liable for any errors, omissions, or decisions made in reliance on this information.

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