established · 0.0 capability action

Speech-to-Text

Score 27.8 / 100 51 providers +10 via APIs 32 APIs Search apis.io →
Variants seen in the corpus: Speech To TextSpeech to TextSpeech-to-Textspeech-to-textspeechToText

Providers using this tag (51)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 7 Solid coverage with minor gaps
S&P GlobalCapital IQCommodity InsightsCredit RatingsDocument Extraction5 APIs65.7Inworld AIArtificial IntelligenceVoiceText-to-Speech6 APIs65.1TranscriptFetchTranscriptsCaptionsYouTube1 API64.7CortiCompanyHealthHealthcareArtificial Intelligence8 APIs61.0Amazon TranscribeAudio ProcessingMachine-LearningSpeech Recognition1 API58.0SiroCompanySalesSales CoachingConversation Intelligence5 APIs55.8ModulateCompanyArtificial IntelligenceVoice AI11 APIs55.7
Developing 24 Usable, with meaningful gaps to close
SLNGCompanySpeechVoice7 APIs53.7Fireflies.aiCompanyMeetingsTranscription1 API52.5SimplismartCompanyArtificial IntelligenceMachine-LearningInference19 APIs51.0SpeechmaticsSpeech RecognitionTranscriptionReal-Time Transcription2 APIs50.6SpekoVoiceVoice AIText-to-Speech1 API50.3GladiaTranscriptionAudio IntelligenceReal-Time1 API50.1Multiverse ComputingArtificial IntelligenceMachine-LearningLLM InferenceModel Compression2 APIs49.8Wispr AICompanyVoiceDictation1 API49.4Allo-MediaCompanyAi DataSpeech Recognition4 APIs48.8Heidi HealthHealthcareHealth TechAI Medical ScribeAmbient AI1 API48.2MediaCaption APIYouTubeTranscriptionCaptionsSubtitles1 API48.0GradiumCompanyAi MlVoice AIText-to-Speech1 API47.9DeepgramArtificial IntelligenceText-to-SpeechTranscription3 APIs47.6SarvamCompanyAi MlArtificial IntelligenceMachine-Learning1 API47.4ActionpowerSpeech RecognitionText-to-SpeechNatural Language Processing2 APIs47.3InterfazeCompanyArtificial IntelligenceMachine-LearningLLM1 API46.8CartesiaArtificial IntelligenceVoice AIText-to-Speech1 API44.8AssemblyAIArtificial IntelligenceAudioSpeechTranscription1 API44.7KenshoCompanyArtificial IntelligenceMachine-LearningFinancial Data4 APIs43.2KotobaCompanyArtificial IntelligenceMachine-LearningVoice4 APIs42.8FreeTTSText-to-SpeechSpeech SynthesisAI-voiceAudio1 API42.6Sarvam AIArtificial IntelligenceLLMText-to-Speech1 API42.1Sarj AI Developer APIVoice AIVoice AgentsConversational AIArabic AI4 APIs41.5SonixAudio TranscriptionTranscriptionSubtitles1 API39.4
Thin 11 Limited public surface area
Happy ScribeAudio TranscriptionTranscriptionSubtitles1 API39.2TrintAudio TranscriptionTranscriptionMedia1 API38.6Fish AudioVoiceText-to-SpeechVoice Cloning1 API38.3VoiceittSpeech RecognitionVoiceAccessibility1 API37.6Symbl.aiCompanyConversation IntelligenceVoice AI35.2ArgmaxCompanyEnterpriseArtificial IntelligenceMachine-Learning1 API34.3Reson8Speech RecognitionASRVoice AI3 APIs31.2Rev AISpeech RecognitionTranscriptionAudio7 APIs30.5Cloverleaf AICompanyGovernmentB2GSales Intelligence1 API29.8TortusCompanyHealthcareArtificial IntelligenceAmbient Clinical Documentation1 API29.7Otter.aiArtificial IntelligenceTranscriptionMeeting Notes1 API28.4
Emerging 7 Early or largely undocumented
Wit.AICompanyNatural Language ProcessingNLPSpeech Recognition1 API23.6VoquillCompanyVoiceDictation22.9SpeechlyCompanySpeech RecognitionVoiceSpoken Language Understanding1 API22.7Wispr FlowCompanyVoiceDictation21.2Sully AIHealthcareHealth TechMedical AIClinical AI1 API19.0Useful SensorsCompanyAi MlText-to-Speech18.1Viva TranslateCompanyTranslationReal-Time TranslationTranscription11.7
Minimal 1 Almost no public developer surface
IntellaCompanyArtificial IntelligenceVoice AIConversational AI10.6
Unrated 1 Not yet scored
Pop Up ArchiveCompanyAudioTranscription

APIs with this tag (32)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Strong 8 Solid coverage with minor gaps
Kensho Scribe Batch API v1Legacy v1 batch transcription endpoint (POST /api/v1/transcription). Superseded by the v2 batch API which d...65.7Kensho Scribe Batch API v2Asynchronous audio and video transcription REST API. POST a media file to start a transcription job, then p...65.7Kensho Scribe Real Time APIReal-time streaming transcription over a WebSocket at wss://scribe.kensho.com/ws. Clients send an Authentic...65.7Inworld AI Speech To Text APITranscribe audio to text.65.1TranscriptFetch REST APIREST API (current version v2, path-prefixed) for fetching timestamped transcripts from YouTube, TikTok, Ins...64.7Dify Audio APIText-to-Speech and Speech-to-Text operations. 2 operation(s) from the Dify Service API.64.0Corti Speech to Text APIReal-time, bidirectional stateless dictation over WebSocket, returning live transcripts and detected commands.61.0RingCentral Audio and Video AI APIThe RingCentral Audio and Video AI API exposes speech-to-text, summarization, and conversational analytics ...56.3
Developing 13 Usable, with meaningful gaps to close
Mistral AI Audio Transcription APIAudio transcription API powered by Voxtral for speech-to-text with diarization, word-level timestamps, and ...52.3Simplismart Speech to Text APIThe Speech to Text API from Simplismart — 2 operation(s) for speech to text.51.0Speechmatics Realtime Transcription APIWebSocket API for low-latency real-time streaming transcription supporting live audio input, speaker diariz...50.6Gladia Live (Real-time) APIWebSocket API for real-time live audio transcription with sub-second latency, supporting multi-language det...50.1DeepL Voice APIThe DeepL Voice API provides real-time speech transcription and translation. A POST to /v3/voice/realtime i...49.1Media Caption Public APIREST API for fetching public YouTube transcripts synchronously and in bulk, with account/balance endpoints,...48.0Sarvam speechToText APIThe speechToText API from Sarvam — 2 operation(s) for speechtotext.47.4daglo Cloud APIREST API for ActionPower's speech and language stack, served at https://apis.daglo.ai and authenticated wit...47.3Cartesia Speech-to-Text APIBatch transcription of an audio file of any length.44.8Cartesia STT WebSocket APIRealtime transcription over WebSocket at wss://api.cartesia.ai/stt/websocket. Clients stream raw binary aud...44.8Kensho ScribeAsynchronous speech-to-text transcription API that turns audio and video into text with high accuracy. Supp...43.2FreeTTS REST APIREST/JSON API for text-to-speech synthesis, audio and SRT subtitle download, and voice listing. Uses x-api-...42.6Sarvam AI Speech to Text APIThe Speech to Text API from Sarvam AI — 2 operation(s) for speech to text.42.1
Thin 10 Limited public surface area
Azure AI Speech APISpeech-to-text, text-to-speech, speech translation, and speaker recognition.38.8Podcastle TranscriptionTranscription and speech-to-text are Podcastle platform features (multi-language transcription with speaker...38.8Fish Audio APIThe Fish Audio API provides RESTful access to text-to-speech, speech-to-text, voice cloning, and voice mana...38.3Voiceitt WebSockets APISocket.IO WebSockets API for real-time speech recognition. After JWT login via the HTTP API, clients set re...37.6Argmax Local ServerA local transcription server for macOS that is API-compatible with the Deepgram Speech-to-Text (Live) API, ...34.3Taddy Episode Transcripts APIRetrieve episode transcripts with getEpisodeTranscript and the transcriptWithSpeakersAndTimecodes field, in...32.9elevenlabs Speech to Text APIEndpoints for converting audio into text transcriptions with support for multiple languages and audio formats.32.7Reson8 Speech to Text APIRealtime, turn-level, and prerecorded transcription.31.2Agora Real-Time Speech-to-Text APIThe Agora Real-Time Speech-to-Text API provides streaming transcription and real-time translation across mu...30.6Otter.ai APIThe Otter.ai REST API enables Enterprise customers to programmatically upload audio and video files for tra...28.4
Emerging 1 Early or largely undocumented
Nuance Mix ASRaaS gRPC APIAutomatic Speech Recognition as a Service — convert speech to text in real time over a gRPC streaming API (...25.7

Companies reaching this through an API (10)

These companies publish an API, specification or operation carrying “Speech-to-Text” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Agora DeepL Dify Elevenlabs Microsoft Cognitive Services Mistral AI Nuance Podcastle RingCentral Taddy

Score breakdown

Frequency
53.4
log-scaled weighted occurrences
Breadth
1.4
spread across providers
Quality lift
47.1
mean composite of providers using it
Cohesion
31.3
strength of nearest seed neighbor

Related tags

Transcription 34 co-occurrences Text-to-Speech 21 co-occurrences Speech Recognition 14 co-occurrences Captions 7 co-occurrences Voice AI 12 co-occurrences Voice Cloning 6 co-occurrences Translation 9 co-occurrences Voice 19 co-occurrences

Where this tag comes from

Provider tag52
Api tag33
Openapi tag7
Openapi op tag14

Cohort brief

Auto-generated

The 49 providers in the APIs.io catalog tagged Speech-to-Text, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
49
all scored
Mean Kin Score
42.2
+18.3 vs catalog 23.9
Mean Agent Readiness
25
+13 vs catalog 12
Spread
10.6–65.7
median 44.7 · σ 12.8
How the 49 split by band
Exemplar 0Strong 7Developing 24Thin 11Emerging 6Minimal 1
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 49.5 23.4 +26.1 49
Contract Quality 41.5 19.8 +21.7 49
Operational Transparency 33 14 +19 49
Access Clarity 43.7 26.5 +17.2 49
Discoverability 72.8 61.2 +11.6 49
Contract Governance 11 6.4 +4.6 49

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 20% 10% +10
MCP server (first-party) 32% 13% +19
Agent Skills 0% 0% 0
OAuth scopes 16% 11% +5
Security 98% 97% +1
Arazzo workflows 2% 2% 0
Governance rules 20% 14% +6

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 S&P Global 65.7
  2. 2 Inworld AI 65.1
  3. 3 TranscriptFetch 64.7
  4. 4 Corti 61
  5. 5 Amazon Transcribe 58
  6. 6 Siro 55.8
  7. 7 Modulate 55.7
  8. 8 SLNG 53.7
  9. 9 Fireflies.ai 52.5
  10. 10 Simplismart 51
Top by Agent Readiness
  1. 1 S&P Global 63.7
  2. 2 Sarj AI Developer API 62.9
  3. 3 Kensho 51.1
  4. 4 Fireflies.ai 47.3
  5. 5 TranscriptFetch 46.2
  6. 6 Speko 44.4
  7. 7 Allo-Media 37.8
  8. 8 Actionpower 35.8
  9. 9 Corti 32.9
  10. 10 Wispr AI 32.9
All 51 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/speech-to-text"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/speech-to-text"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/speech-to-text/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.