Docs for building agentic
conversation at scale.
Every guide, API endpoint, and playbook for the Yellow.ai Agentic Platform - one search box away.
Where to start
Meet the AI layer
Build and run your Nexus bot by asking - the in-app assistant does the work.
See what it can doBuild an agent
Configuration, agents, and tools - how the pieces fit and how to configure them.
Start buildingUse the API
Auth, your first call, webhooks, events, and the OpenAPI spec.
Read the referenceDocs MCP Server
Give Claude, ChatGPT, or Cursor direct, cited access to search these docs.
Connect your assistantThe rest of the docs
Recently shipped
Full changelogCall an LLM right inside your flow
A new LLM node lets a flow make a single, well-scoped model call — summarise, classify, extract, or rewrite — and hand the result straight to the next node.
Voice: call details, latency insight, and richer transfers
A new Call Details panel brings the recording, call record, and per-turn latency together — plus ElevenLabs Multilingual v2 voices and more control over how calls transfer.
Video and audio in the chat widget
The chat widget can now play video and audio inline — embed a clip or a voice note right in the conversation instead of linking out.
Inbox: block email senders and edit conversation tags
Stop unwanted email threads by blocking specific senders, and rename or re-describe conversation tags without recreating them.
See cached vs. new tokens in conversation cost
The conversation cost view now breaks prompt tokens into cached and non-cached, so you can see how much prompt caching is saving on each conversation.
Stuck?
The community is the fastest place to get unstuck. Otherwise, [email protected] picks things up within a business day.