aid: slng
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/slng.png
name: SLNG
description: >-
  SLNG is a compliance-first speech AI gateway that gives developers a single,
  unified API for speech-to-text, text-to-speech, and LLM-driven voice agents
  across 30+ models from providers like Deepgram, Rime, Cartesia, ElevenLabs,
  and OpenAI Whisper. The platform acts as an execution layer between an
  orchestrator and the models, routing each request to in-region compute across
  60+ regions and 11 sovereign hubs for low latency and local data residency
  (GDPR), with ISO 27001 certification and HIPAA compliance. Every model is
  reachable over HTTP or streaming WebSocket, with bring-your-own-key billing,
  batch transcription, pronunciation dictionaries, and per-minute pricing.
  Founded in Barcelona in 2025 and backed by a pre-seed round led by Earlybird.
url: https://raw.githubusercontent.com/api-evangelist/slng/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- earlybird
x-tier: producer
x-tier-reason: enriched-from-live-api
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Speech
- Voice
- Speech-to-Text
- Text-to-Speech
- Voice AI
- Voice Agents
- Transcription
- Speech Recognition
- Artificial Intelligence
- API Gateway
- Real-Time
tags_raw:
- Company
- Speech
- Voice
- Speech to Text
- Text to Speech
- Voice AI
- Voice Agents
- Transcription
- Speech Recognition
- Artificial Intelligence
- API Gateway
- Real-Time
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: slng:slng-account-api
  name: SLNG Account API
  description: Inspect the authenticated account and organization.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/slng-account-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-agents-api
  name: SLNG Agents API
  description: Voice agent CRUD.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Agents
  properties:
  - type: OpenAPI
    url: openapi/slng-agents-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-calls-api
  name: SLNG Calls API
  description: Call dispatch and status.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Calls
  properties:
  - type: OpenAPI
    url: openapi/slng-calls-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-catalog-api
  name: SLNG Catalog API
  description: Discover and inspect available models in the SLNG catalog.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/slng-catalog-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-deepgram-aura-2-api
  name: SLNG Deepgram Aura 2 API
  description: Deepgram Aura 2 for conversational voice agents.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Deepgram Aura 2
  properties:
  - type: OpenAPI
    url: openapi/slng-deepgram-aura-2-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-deepgram-nova-3-api
  name: SLNG Deepgram Nova 3 API
  description: Deepgram Nova 3 with VAD and speaker diarization.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Deepgram Nova 3
  properties:
  - type: OpenAPI
    url: openapi/slng-deepgram-nova-3-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-inworld-max-1-5-api
  name: SLNG Inworld Max 1.5 API
  description: Inworld Max 1.5 for multilingual, expressive synthesis.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Inworld Max 1.5
  properties:
  - type: OpenAPI
    url: openapi/slng-inworld-max-1-5-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-orpheus-english-api
  name: SLNG Orpheus English API
  description: Orpheus TTS with emotion control.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Orpheus English
  properties:
  - type: OpenAPI
    url: openapi/slng-orpheus-english-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-pronunciation-dictionaries-api
  name: SLNG Pronunciation dictionaries API
  description: Manage reusable pronunciation rewrite dictionaries for TTS.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Pronunciation Dictionaries
  tags_raw:
  - Pronunciation dictionaries
  properties:
  - type: OpenAPI
    url: openapi/slng-pronunciation-dictionaries-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-rime-arcana-v2-api
  name: SLNG Rime Arcana v2 API
  description: Rime Arcana v2 TTS with multi-language support.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Rime Arcana v2
  properties:
  - type: OpenAPI
    url: openapi/slng-rime-arcana-v2-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-rime-arcana-v3-api
  name: SLNG Rime Arcana v3 API
  description: Rime Arcana v3 TTS with multilingual support (English, Hindi).
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Rime Arcana v3
  properties:
  - type: OpenAPI
    url: openapi/slng-rime-arcana-v3-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-rime-coda-api
  name: SLNG Rime Coda API
  description: Rime Coda TTS for Bahasa Indonesian.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Rime Coda
  properties:
  - type: OpenAPI
    url: openapi/slng-rime-coda-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-sessions-api
  name: SLNG Sessions API
  description: Web (non-telephony) sessions.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/slng-sessions-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-speechmatics-api
  name: SLNG Speechmatics API
  description: Create and manage asynchronous transcription jobs.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Speechmatics
  properties:
  - type: OpenAPI
    url: openapi/slng-speechmatics-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
- aid: slng:slng-whisper-large-v3-api
  name: SLNG Whisper Large v3 API
  description: Whisper Large v3 with 99+ language support.
  humanURL: https://docs.slng.ai
  baseURL: https://api.slng.ai
  tags:
  - Whisper Large v3
  properties:
  - type: OpenAPI
    url: openapi/slng-whisper-large-v3-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-stt-slng-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/slng-tts-slng-asyncapi.yml
common:
- type: CapabilityMap
  url: capabilities/slng-capability-edges.yml
  name: SLNG Business Capability Map
- type: Plans
  url: plans/slng-plans-pricing.yml
- type: Website
  url: https://www.slng.ai/
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/slng/overview
- type: DeveloperPortal
  url: https://docs.slng.ai
- type: Documentation
  url: https://docs.slng.ai
- type: APIReference
  url: https://docs.slng.ai/api-reference/overview
- type: GettingStarted
  url: https://docs.slng.ai/getting-started
- type: Blog
  url: https://slng.ai/blog
- type: GitHubOrganization
  url: https://github.com/slng-ai
- type: SignUp
  url: https://app.slng.ai
- type: Pricing
  url: https://slng.ai/pricing
- type: TermsOfService
  url: https://slng.ai/legal/terms-of-service
- type: PrivacyPolicy
  url: https://slng.ai/legal/privacy-policy
- type: Support
  url: mailto:support@slng.ai
- type: ChangeLog
  url: changelog/slng-changelog.yml
- type: TrustCenter
  url: https://trust.slng.ai
- type: Compliance
  url: security/slng-trust-center.yml
- type: Authentication
  url: authentication/slng-authentication.yml
- type: DomainSecurity
  url: security/slng-domain-security.yml
- type: AgenticAccess
  url: agentic-access/slng-agentic-access.yml
- type: Packages
  url: packages/slng-packages.yml
- type: SDKs
  url: packages/slng-packages.yml
- type: CLI
  url: cli/slng-cli.yml
- type: X-MCPServerCandidate
  url: mcp/slng-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/slng-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/slng-conventions.yml
- type: ErrorCatalog
  url: errors/slng-problem-types.yml
- type: Lifecycle
  url: lifecycle/slng-lifecycle.yml
- type: Sandbox
  url: sandbox/slng-sandbox.yml
- type: DataModel
  url: data-model/slng-data-model.yml
- type: Conformance
  url: conformance/slng-conformance.yml
- type: Overlay
  url: overlays/slng-stt-overlay.yaml
- type: Overlay
  url: overlays/slng-tts-overlay.yaml
- type: Overlay
  url: overlays/slng-agents-overlay.yaml
- type: Overlay
  url: overlays/slng-batch-overlay.yaml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 38
  pass: local-v1