Free for a week, then $19 for your first month
Medical Speech-to-Text API · For developers

The medical speech-to-text API built for clinical documentation

Accurate, customizable, and secure voice AI designed for clinical environments. One API turns audio into transcripts, AI-generated clinical notes, and structured, EHR-ready data.

  • Medical-tuned accuracy
  • Customizable to your workflow
  • HIPAA-conscious, BAA available

Most healthcare products don't need another transcription API

Generic ASR hands back text. A healthcare product needs medical-grade recognition, a finished clinical note, and structured data it can write to a chart, all from one API.

01

Medical-tuned recognition

General ASR is trained on podcasts and call-center audio, so it drops or invents clinical terms. Twofold's models are tuned on real visits and resolve medication names, dosages, lab values, and specialty vocabulary.

  • Drug names & dosages
  • Lab values & units
  • Specialty vocabulary
  • Speaker diarization
02

Notes, not just transcripts

A transcript is raw text your product still has to turn into a note. Twofold returns a finished clinical note in the provider's voice, formatted to the template you request.

  • SOAP
  • DAP
  • BIRP
  • GIRP
  • Treatment plans
  • Custom templates
03

Structured clinical data

Instead of a wall of words, get typed fields you can write straight to your schema: the problem list, medications, billing-code candidates, and the fields your own templates expect.

  • Problems
  • Medications
  • ICD-10 candidates
  • CPT candidates
  • Template fields
04

Built around how clinicians work

Documentation only sticks if it fits the visit. One API covers ambient capture during the encounter, dictation, and upload after the fact, so adoption never depends on changing provider habits.

  • Ambient scribe
  • Dictation
  • Async upload
  • HIPAA + BAA

One medical voice AI layer, every documentation workflow

From raw clinical audio to EHR-ready output, build the documentation experience your product needs on a single healthcare speech-to-text and AI scribe API.

Medical speech-to-text

High-accuracy medical ASR with the clinical vocabulary and formatting generic transcription APIs miss.

Clinical dictation

Front-of-house dictation and post-visit summaries, structured the way clinicians expect.

Ambient AI scribing

Listens to the patient-provider conversation and drafts the note in the background.

AI-generated clinical notes

SOAP, DAP, BIRP, GIRP, treatment plans, reports, and your own custom formats.

Structured data extraction

Problems, medications, ICD-10 and CPT candidates, and template fields, returned as typed data.

EHR-ready documentation

Outputs formatted to drop straight into your charting or downstream systems.

Specialty-specific templates

Tuned per specialty and per template: behavioral health, primary care, PT, and more.

Voice- & conversation-to-note

Full voice-to-note and conversation-to-note pipelines, without stitching three vendors together.

Documentation automation

Automate the documentation layer end to end. Providers review and sign instead of typing.

One API call runs the whole documentation pipeline

Send raw clinical input and get back a transcript, a finished clinical note, and structured, EHR-ready data, so your team builds the product experience instead of stitching together a documentation stack.

  1. You send
    • Clinical audio
    • Dictation
    • Patient-provider conversation
    • Free text
  2. 01

    Transcribe

    Medical ASR turns clinical audio, dictation, and multi-speaker conversations into an accurate transcript.

    Clinical transcription API
  3. 02

    Generate the note

    The transcript becomes a finished clinical note: SOAP, DAP, BIRP, treatment plan, or your custom format.

    Medical note generation API
  4. 03

    Extract structured data

    Problems, medications, ICD-10 and CPT candidates, and template fields are pulled out as typed data.

    Structured clinical data
  5. 04

    Deliver downstream

    Formatted output writes straight into your EHR, or any downstream platform across billing, scheduling, telehealth, and more.

    EHR documentation API
  6. You get back
    • Transcript
    • Clinical note
    • Structured data
    • EHR-ready
Goes downstream to
  • EHR platform
  • RCM / billing platform
  • Scheduling & intake tool
  • Telehealth platform
  • Behavioral health platform
  • Practice management system
  • Provider marketplace
  • Clinical workflow tool
  • Digital health app

Want to see the API and pricing?

Book a call with our product team to walk through the documentation, talk through your use case, and find the implementation path that fits.

Book a call with our product team

Use cases for every healthcare platform

However your product reaches providers, Twofold's medical voice AI drops in behind it. Here's what teams build on each kind of platform.

EHR platform

In-chart AI scribe

Draft the note and write structured fields back to the patient record, so clinicians stop typing.

RCM / billing platform

Coding from the visit

Surface ICD-10 and CPT candidates with the supporting note, so coders and claims start from structured data.

Scheduling & intake tool

Structured intake

Turn intake calls and pre-visit conversations into structured summaries that pre-fill the chart and route to the right provider.

Telehealth platform

Notes for virtual visits

Capture the video visit and return a finished clinical note the moment the call ends, with nothing for providers to install.

Behavioral health platform

Therapy-ready formats

Generate DAP, BIRP, GIRP, and treatment-plan notes from the session, tuned for behavioral health language.

Practice management system

Documentation for the whole practice

Offer AI documentation as a built-in feature across every provider and specialty, managed inside your platform.

Provider marketplace

A scribe for every provider

Give every clinician on your marketplace an instant AI scribe, so documentation stays consistent across the network.

Clinical workflow tool

Trigger the next step

Fire referrals, orders, and follow-up tasks from the structured data the visit produces, instead of parsing free text.

Digital health app

Voice-first documentation

Add voice-to-note and structured capture to your app, so providers document by speaking on web or mobile.

Buy the medical layer, or rebuild it yourself

A generic speech-to-text API hands back text. Building in-house means owning models, data, and compliance. Twofold gives you the whole medical documentation layer at a fraction of either.

Twofold Medical voice AI the whole documentation layer Alternative Generic STT API transcription only DIY Build in-house your own ML stack
Medical-tuned speech recognition drug names, dosages, specialty terms general-purpose ASR you train and maintain it
Returns a finished clinical note SOAP, DAP, BIRP, custom raw transcript only Build it your own LLM layer
Structured clinical data extraction problems, meds, ICD-10, CPT Build it pipelines + eval
EHR-ready output formatting Build it
HIPAA-conscious, BAA available varies by vendor Your scope compliance on you
Built around provider workflows ambient, dictation, upload you design each one
Time to first integrated output Days Weeks plus your note layer Months ML + data + eval
Cost at high volume Lowest in-house voice AI Per-minute adds up fast Highest GPUs + ML headcount

"Build it" means your team owns the models, prompts, evaluation, and clinical QA for that capability. A dash means partial or vendor-dependent support.

FAQs

What developers, product leaders, and technical evaluators ask most about building on Twofold's medical voice AI.

What is a medical speech-to-text API?

A medical speech-to-text API turns clinical audio into text that is accurate for healthcare, then — in Twofold's case — into finished documentation:

  • Medical ASR: recognizes drug names, dosages, lab values, and specialty vocabulary general transcription engines mangle.
  • More than a transcript: returns a structured clinical note and typed data, not just a wall of words.
  • EHR-ready: outputs are formatted to write into your charting or downstream systems.

Book a call with our product team to see the API and discuss your use case.

How is this different from a generic speech-to-text API?

A generic speech-to-text API is built for podcasts and call-center audio and stops at the transcript. Twofold is a medical voice AI layer:

  • Medical-first: clinical speech recognition tuned on real visits, not general audio.
  • Documentation, not transcription: finished SOAP, DAP, BIRP, treatment plans, and custom formats.
  • Structured output: problems, medications, ICD-10 and CPT candidates extracted as typed data.
  • Workflow-aware: ambient scribing, dictation, and upload-after-the-visit are all first-class.

See the side-by-side in the comparison above.

What is an ambient AI scribe API?

An ambient AI scribe API listens to the patient-provider conversation and drafts the clinical note in the background — no dictation required:

  • Conversation-to-note: multi-speaker audio becomes an attributed, structured note.
  • Hands-free: the provider talks to the patient; the note is ready to review after.
  • Embeddable: drop the capability into your own product UI.

Ambient scribing is one of several workflows — see the capabilities grid above.

Is the API HIPAA compliant, and do you sign a BAA?

Yes. Twofold is built for handling protected health information end to end:

  • BAA available for eligible partners building on the API.
  • Encrypted in transit (TLS 1.2+) and at rest (AES-256), with role-based access and audit logs.
  • No model training on your audio or notes — never sold, never shared.
  • Audio discarded after processing unless you opt in to retention.

Full details are in our privacy policy; our team will walk your security reviewer through specifics on a call.

What does structured clinical data extraction return?

Beyond the note, Twofold turns the conversation into typed, machine-readable clinical data your product can act on:

  • Problems & assessments surfaced from the encounter.
  • Medications with dosage and frequency where stated.
  • ICD-10 and CPT candidates for coding and billing flows.
  • Template fields mapped to your own schema.

This is what lets you build coding, analytics, and EHR-write features on top of the voice layer.

What implementation paths are available?

We meet your product where it is — implementation is flexible rather than one-size-fits-all:

  • API integration: call the documentation pipeline directly from your backend.
  • Embedded experiences: drop capture and review flows into your own UI.
  • Custom formats & fields: notes and structured output shaped to your schema.
  • Volume-based commercials: pricing tuned for high-volume healthcare products.

The fastest way to scope a path is to book a call with our product team.

Why is Twofold more affordable than other vendors?

Twofold runs its own voice and audio AI in-house instead of reselling third-party APIs, so the documentation layer costs less at scale:

  • In-house voice AI: no per-minute markup stacked on a vendor you don't control.
  • One layer, not three: transcription, note generation, and structured extraction in a single call.
  • Built for high volume: commercials designed for healthcare products at scale.

Talk to our team for pricing against your expected volume.

Build on the medical voice AI layer, not from scratch.

Book a call with our product team to see the documentation, talk through your use case, and find the implementation path and pricing that fit your healthcare product.

  • One layer, not three
  • In-house medical voice AI
  • HIPAA-conscious, BAA available