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Developers

Build on CallMissed

Use one CallMissed API key for model inference, speech, images, and search, then connect those capabilities to voice and WhatsApp products.

API surfaces

Choose what you want to build

Each capability has a documented endpoint, request schema, model catalog, and playground path.

Chat and reasoning

POST /v1/chat/completions

Use OpenAI-compatible chat requests with streaming, tools, and model-specific capabilities.

Read endpoint guide

Speech to text

POST /v1/audio/transcriptions

Upload audio for transcription, language-aware speech recognition, or translation workflows.

Read endpoint guide

Text to speech

POST /v1/audio/speech

Generate speech from text with the voices, languages, and formats supported by the selected model.

Read endpoint guide

Image generation

POST /v1/images/generations

Create images through an OpenAI-compatible request shape and a catalog of image models.

Read endpoint guide

Web search

POST /v1/search

Run current web searches through a dedicated endpoint with source-aware results.

Read endpoint guide
Step 1

Create a scoped key

Generate a cm_ API key and grant only the service permissions the application needs.

Step 2

Choose an endpoint

Pick the API surface and model that match the input, output, latency, and price requirements.

Step 3

Test and observe

Try the request in the playground, then review usage and errors from the dashboard.

First request

Start with a standard chat completion

curl https://api.callmissed.com/v1/chat/completions \
  -H "Authorization: Bearer cm_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "sarvam-105b",
    "messages": [{"role": "user", "content": "Namaste! Order status?"}]
  }'

Authentication uses Authorization: Bearer cm_YOUR_KEY. Keep keys server-side and use separate scoped keys for separate applications.

Developer resources

Reference, test, and keep shipping

Quickstart

Create an API key and send your first authenticated request.

Documentation

Full API reference for LLM, STT, TTS, voice, WhatsApp, and webhooks.

API Playground

Test models, STT, TTS, and voice agents without writing code.

SDKs & Libraries

OpenAI-compatible — use official OpenAI SDKs with base URL api.callmissed.com.

Changelog

New models, endpoints, and breaking changes.

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