CallMissed Blog
Insights on AI communication, voice agents, WhatsApp automation, and the future of customer engagement.
Building Voice Agents on CallMissed: From WebRTC to Sub-Second Round-Trip
A voice agent in 2026 is no longer a research demo. It is a real product surface — phone support, scheduling, in-app conversational UIs, embedded copilots — and the difference between one users tolerate and one users enjoy is almost entirely about latency and turn-taking. CallMissed gives you the pr…
Drop-In OpenAI-Compatible API: Switch Models Without Rewriting Your Code
The OpenAI Chat Completions API has won the LLM API design war. Whether you like the schema or not, every serious SDK and tool now speaks it natively — openai-python, openai-node, the LangChain/LlamaIndex adapters, the Anthropic CLI's compat mode, even some local model runners. CallMissed's /v1/chat…
Anthropic-Compatible Messages API: Use Claude Without Vendor Lock-In
The Anthropic Messages API has its own design — a content-block model, system-prompt-as-top-level-field, native tool use, prompt caching, extended thinking. Apps built on Claude tend to use Anthropic's SDK directly, and migrating those apps usually means rewriting the call shape. CallMissed avoids t…
Multi-Tenant API Keys: Production-Grade Auth with cm_* Tokens
Most AI APIs treat keys as a binary: you have one, or you don't. That works for a hobby project. It does not work when you are deploying agents in production with separate environments, separate teams, separate budgets, and a security review in your future. CallMissed's cm API keys are designed for …