Speech
Providers using this tag (37)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 3 Solid coverage with minor gaps
Developing 17 Usable, with meaningful gaps to close
Thin 8 Limited public surface area
Emerging 9 Early or largely undocumented
APIs with this tag (18)
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 1 Solid coverage with minor gaps
Developing 7 Usable, with meaningful gaps to close
Azure AI Services APIREST APIs for Azure AI and Machine Learning services including Azure OpenAI Service, Azure Machine Learning...Google Cloud Speech-to-Text APIThe Cloud Speech-to-Text API enables developers to convert audio to text using powerful neural network mode...Google Cloud Text-to-Speech APIThe Cloud Text-to-Speech API converts text into natural-sounding speech using an API powered by Google AI t...Google Cloud Speech-To-Text Speech APIPerform speech recognition on audioLMNT Speech APIThe Speech API from LMNT — 2 operation(s) for speech.OpenAI APIs Speech APIText-to-speech operationsAzure AI Speech APISpeech-to-text, text-to-speech, speech translation, and speaker recognition.
Thin 6 Limited public surface area
Reka Speech APISpeech transcription and translation.Unreal Speech Speech APISynchronous text-to-speech returning an MP3 and timestamp URLs.Azure Cognitive Services APIAI and machine learning APIs for vision, speech, language, and decision making.OpenMind LLM APIUnified chat-completions endpoint that proxies multiple LLM providers (OpenAI, Anthropic via OpenRouter, Go...Kalpa Labs Speech APIText-to-speech and conversational generation.LiteLLM Audio APIProvides OpenAI-compatible /audio/transcriptions and /audio/speech endpoints for audio transcription and te...
Emerging 4 Early or largely undocumented
Wit.ai HTTP APIThe Wit.ai HTTP API extracts structured meaning (intents, entities, traits) from text and audio, transcribe...Naver Cloud CLOVA Speech APICLOVA Speech provides Korean-first speech-to-text (STT) and Korean speech synthesis (TTS / Premium Voice) A...Amazon Web Services Speech APIThe Speech API from Amazon Web Services — 1 operation(s) for speech.JD Cloud OCR / AI APIsJD Cloud AI Platform exposes OCR (general, ID card, bank card, business license), speech (STT, TTS), comput...
Score breakdown
Frequency
46.8
log-scaled weighted occurrences
Breadth
1.0
spread across providers
Quality lift
46.8
mean composite of providers using it
Cohesion
5.8
strength of nearest seed neighbor
Related tags
Text-to-Speech 11 co-occurrences
Vision 5 co-occurrences
Voices 5 co-occurrences
Transcription 6 co-occurrences
Translation 5 co-occurrences
Image-Generation 5 co-occurrences
Voice 11 co-occurrences
Conversational AI 10 co-occurrences
Where this tag comes from
Provider tag24
Api tag19
Openapi tag8
Openapi op tag14
Cohort brief
Auto-generatedThe 37 providers in the APIs.io catalog tagged Speech, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
37
of 38 on the roster
Mean Kin Score
37.6
+16.9 vs catalog 20.7
Mean Agent Readiness
21.5
+11.8 vs catalog 9.7
Spread
14–59.6
median 41 · σ 12.6
How the 37 split by band
Exemplar 0Strong 3Developing 17Thin 8Emerging 9Minimal 0
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 42.5 | 17.9 | +24.6 | 37 |
| Contract Quality | 39.2 | 17.5 | +21.7 | 37 |
| Access Clarity | 38.3 | 22.3 | +16 | 37 |
| Operational Transparency | 23.8 | 11.3 | +12.5 | 37 |
| Discoverability | 70.6 | 60.4 | +10.2 | 37 |
| Contract Governance | 11 | 6.4 | +4.6 | 37 |
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
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 30% | 16% | +14 |
| MCP server (first-party) | 11% | 7% | +4 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 16% | 9% | +7 |
| Security | 97% | 88% | +9 |
| Arazzo workflows | 3% | 2% | +1 |
| Governance rules | 27% | 13% | +14 |
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 Amazon Polly 59.6
- 2 SLNG 56.9
- 3 Convai 54.3
- 4 AT&T 50.9
- 5 Fixie 49.8
- 6 Microsoft Azure Cloud 49.8
- 7 Bolna 48.8
- 8 StepFun 47.8
- 9 LMNT 46.1
- 10 Google Cloud Speech-To-Text 45.8
Top by Agent Readiness
- 1 SK Telecom 43.7
- 2 Phonic 40.8
- 3 Google 39.2
- 4 Bolna 37.4
- 5 AT&T 37.3
- 6 Krisp 34
- 7 StepFun 30.6
- 8 SLNG 30
- 9 Lingopal 29
- 10 Microsoft Products APIs 28.7
This roster declares 38 members; 37
resolve to a provider in the catalog and 37 carry a score
(100%). The figures above describe the scored members only.Generated from the catalog build of
25 August 2026, across 26891
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.