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How CallMissed Works

The architecture behind CallMissed — one OpenAI-compatible gateway that routes to the best provider for each model, billed in a single credit currency.

The Gateway

CallMissed is a single, OpenAI-compatible gateway in front of many AI providers. You point the official OpenAI (or Anthropic) SDK at https://api.callmissed.com/v1, authenticate with a cm_ key, and call chat, speech, image, and search — without integrating each provider yourself.

The same endpoint powers the dashboard playground and your production code, so behavior is identical everywhere.

  1. 1

    Your app

    One SDK, one base URL, one key for every capability

  2. 2

    CallMissed gateway

    Authenticate, enforce tenant isolation + rate limits, route by model id

  3. 3

    Best provider

    the best-fit backend for each model — chosen automatically

  4. 4

    Credits & logs

    Deduct from one credit balance and record usage for every request

Model Routing

The model id picks the backend. You never manage multiple SDKs or keys.

Model idRouted to
sarvam-* (e.g. sarvam-105b)Indic LLM
saaras:*, whisper*, nova-3, deepgram-*, gnani-prisma-*Speech to text
bulbul:*, aura-2-*, melotts, gnani-timbre-*Text to speech
flux-*, gpt-image-*, lucid-origin, phoenix-1.0, …Image generation
everything else (e.g. kimi-k2.5, gpt-5.6-terra, glm-5.2)Chat completions

Every id is a plain CallMissed id. One API surface, one key, one bill.

Need a model that isn't in the catalog? We deploy 300+ more on demand — see Models on demand.

One Credit Currency

Every call — LLM tokens, STT minutes, TTS characters, an image, a web search — deducts credits. 1 credit = ₹1 ≈ US$0.0104 (US$1 = ₹96). This removes per-provider pricing math: top up once, spend across every capability. See Credits & Rate Limits for the per-service rates.

Tenancy & Isolation

Your organization is a tenant. Every user, bot, API key, conversation, and log belongs to exactly one tenant, and every database query is scoped to it — data is never shared across tenants. Roles (owner / admin / agent) gate sensitive actions, and you manage members and roles from the dashboard.

Channels vs APIs

There are two ways to use CallMissed:

  • Direct APIs — call /v1/* from your own app (chat, speech, image, search, voice sessions).
  • Channels — let CallMissed run a bot end-to-end on WhatsApp or voice calls, handling the inbound webhook, the AI turn, and the reply.