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AssemblyAI

Speech AI APIs for transcription, understanding, and voice-powered applications.

8 searches6 actionsPollingAuth: API key

AI-assisted documentation6 min read

This documentation is compiled from our integration source code, internal specs for AssemblyAI, its official API documentation and anonymized requests logs we collect from our support team[2].

Open AssemblyAI on WEXTL →

AssemblyAI requires an active account and an API access token from your account settings to connect — both are set up on its own site.[3]

  • API KeypasswordRequired

    To make authorized calls the REST API, your app must provide an authorization header with an API key. You can find your API key in the dashboard.

    [1]
  1. Log in to your WEXTL account, add the AssemblyAI node module to your workflow, and click Create new credential.
  2. Optional: In the Credential name field, enter a name for the credential.
  3. Enter the authentication credentials you copied from your AssemblyAI account, or follow the on-screen instructions to create the credential.
  4. If prompted, authenticate your account and confirm access.
  5. If you want to make changes to your credential in the future, follow the steps in Manage credentials →
Connecting AssemblyAI to WEXTL®
Video slide demonstrates how to integrate AssemblyAI in the WEXTL visual workflow builder.[4]

Notes

Credentials are org-scoped; share them with teammates from the Credentials picker on any of its nodes.For detailed information on connecting an application, see Connect an application →

The list below is a reference of every AssemblyAI node module the integration supports. You will be able to pick any of them on the workflow canvas while building automations.

Browse every AssemblyAI node module below — each one opens to show its input parameters, outputs, and connection requirements.

Get a LeMUR ResponseAction
Input fields[3]
FieldType
Request IDRequired
choice
Output fields[3]
FieldType
Request IDtext
Usageobject
Input Tokensnumber
Output Tokensnumber
Responsetext
Get a TranscriptAction
Input fields[3]
FieldType
Transcript IDRequired
choice
Output fields[3]
FieldType
IDtext
Audio Urltext
Statustext
Webhook Authboolean
Auto Highlightsboolean
Redact Piiboolean
Summarizationboolean
Language Modeltext
Acoustic Modeltext
Language Codetext
Language Detectionboolean
Language Confidence Thresholdnumber
Language Confidencenumber
Speech Modeltext
Texttext
Wordsarray
Utterancesarray
Confidencenumber
Audio Durationnumber
Punctuateboolean
40other output fields
Get a Transcript ParagraphsAction
Input fields[3]
FieldType
Transcript IDRequired
choice
Output fields[3]
FieldType
IDtext
Confidencenumber
Audio Durationnumber
Paragraphsarray
Get a Transcript Redacted AudioAction
Input fields[3]
FieldType
Transcript IDRequired
choice
Output fields[3]
FieldType
Statustext
Redacted Audio Urlurl
Get a Transcript SentencesAction
Input fields[3]
FieldType
Transcript IDRequired
choice
Output fields[3]
FieldType
IDtext
Confidencenumber
Audio Durationnumber
Sentencesarray
Get a Transcript SubtitlesAction
Input fields[3]
FieldType
Transcript IDRequired
choice
Subtitle FormatRequired
choice
Characters Per Captionnumber
List TranscriptsSearch
Input fields[3]
FieldType
Statuschoice
Created Ondate
Throttled Onlyboolean
Limitnumber
Output fields[3]
FieldType
IDtext
Resource Urlurl
Statustext
Createddate
Audio Urlurl
Completeddate
Errortext
Search Words in a TranscriptSearch
Input fields[3]
FieldType
Transcript IDRequired
choice
Wordstext
Limitnumber
Output fields[3]
FieldType
Texttext
Countnumber
Timestampsarray
Indexesarray
Create a TranscriptAction
Input fields[3]
FieldType
Audio URLRequired
url
Audio End Atnumber
Audio Start Fromnumber
Auto Chaptersboolean
Auto Highlightsboolean
Boost Parameterchoice
Content Safetyboolean
Content Safety Confidencenumber
Custom Spellingarray
Custom Topicsboolean
Disfluenciesboolean
Entity Detectionboolean
Filter Profanityboolean
Format Textboolean
IAB Categoriesboolean
Language Codechoice
Language Confidence Thresholdnumber
Language Detectionboolean
Multichannelboolean
Punctuateboolean
18other input fields
Output fields[3]
FieldType
IDtext
Audio Urlurl
Statustext
Webhook Authboolean
Auto Highlightsboolean
Redact Piiboolean
Summarizationboolean
Language Modeltext
Acoustic Modeltext
Language Codetext
Language Detectionboolean
Language Confidence Thresholdnumber
Language Confidencenumber
Speech Modeltext
Texttext
Wordsarray
Utterancesarray
Confidencenumber
Audio Durationnumber
Punctuateboolean
40other output fields
Create a Transcript (LeMUR)Action
Input fields[3]
FieldType
PromptRequired
text
Contextobject
String Contexttext
Map Contextobject
Final Modelchoice
Input Texttext
Max Output Sizenumber
Temperaturenumber
Transcript IDschoice
Output fields[3]
FieldType
Request IDtext
Responsetext
Usageobject
Input Tokensnumber
Output Tokensnumber
Delete a TranscriptAction
Input fields[3]
FieldType
Transcript IDRequired
choice
Make an API Calluniversal
Input fields[3]
FieldType
URLRequired
text
MethodRequired
choice
Headersarray
Headerobject
Query Stringarray
Parameterobject
Bodytext
Output fields[3]
FieldType
Bodytext
Headersobject
Status codenumber
Summarize a Transcript (LeMUR)Action
Input fields[3]
FieldType
Transcript IDsRequired
choice
Answer Formattext
Prompttext
Contextobject
String Contexttext
Map Contextobject
Final Modelchoice
Input Texttext
Max Output Sizenumber
Temperaturenumber
Output fields[3]
FieldType
Request IDtext
Responsetext
Usageobject
Input Tokensnumber
Output Tokensnumber
Upload a MediaAction
Input fields[3]
FieldType
File DataRequired
text
Output fields[3]
FieldType
URLurl

Look for AssemblyAI templates in the WEXTL template library.

Browse templates →
  1. Azure Storage[2]Manage containers and blobs in Azure Blob Storage.
  2. AdafruitAdafruit IO cloud for IoT feeds, groups, and device data streams.
  3. ClerkAuthentication and user management with sign-in, sign-up, and MFA.
  4. AWS LambdaServerless compute that runs your code without managing servers.
  5. Bunny.netCDN control plane — manage pull zones, storage zones, DNS, video libraries, and cache purge.
More apps in Developer Tools category →
  1. WEXTL® AssemblyAI Source Code connector implementation.
  2. Our users use cases and automations.
  3. Official API Documentation for AssemblyAI.
  4. WEXTL® visual workflow builder data.

Last updated: Jul 23, 2026 22:38

How we write our apps documentation

How we compile these docs — sources, AI's role, and how we verify.