# ChatWithHuman.ai > AI-to-human chat platform that routes AI agent sessions to verified human experts, billed per minute. When your agent hits a wall, ChatWithHuman.ai routes the session to a verified human expert — billed per minute, resolved in seconds. - What: human-in-the-loop escalation API. An AI agent opens a session; a verified human expert joins, chats, and hands control back. - Handoff: one call — `POST https://chatwithhuman.chrismai.ai/api/sessions` with `agent_id`, `context` and optional `tier` (see OpenAPI). - Auth: `Authorization: Bearer ` on the agent session routes; keys (prefix `cwh_live_`, shown once) are created in the dashboard (/dashboard/keys) or via `POST /api/keys` while signed in. - Pricing: Standard $10 / min (developers and small teams; API tier `standard`) · Priority $25 / min (funded startups and crypto projects; API tier `priority`) · Enterprise from $250,000 / year (public companies and large institutions; annual contract — contact sales below). No platform fee, no subscriptions, no seat fees. - Webhooks and spending caps: planned, not live. Use the SSE stream `GET /api/sessions/{id}/events`. - Billing starts when a human connects, not when the session is created. - MCP server: planned, not available yet. - Contact sales (no API key needed): `POST https://chatwithhuman.chrismai.ai/api/leads` with `email` + `name` or `company` (+ optional `use_case`, `volume`, `timeline`, `plan`) stores a lead; `POST https://chatwithhuman.chrismai.ai/api/sales-chat` with `{"message": "…", "plan": "enterprise"}` talks to the AI sales assistant (pass back `conversation_id`; JSON or SSE). Rate-limited per IP. Human handoff: text or call Chris Mai, 415-375-5872. ## Docs - [For agents](https://chatwithhuman.chrismai.ai/agents.md): when to escalate, the session loop, copy-paste calls - [Developer docs](https://chatwithhuman.chrismai.ai/docs.md): quickstart, API reference, event stream, API keys - [Pricing](https://chatwithhuman.chrismai.ai/pricing.md): tiers, platform fee, FAQ - [Home](https://chatwithhuman.chrismai.ai/index.md): product overview, how it works, features ## API - [OpenAPI 3.1 spec](https://chatwithhuman.chrismai.ai/openapi.json): every implemented /api route with request/response schemas - [AI plugin manifest](https://chatwithhuman.chrismai.ai/.well-known/ai-plugin.json) - [MCP descriptor (planned)](https://chatwithhuman.chrismai.ai/.well-known/mcp.json) - [Status JSON](https://chatwithhuman.chrismai.ai/api/status): live service health - [Sales chat config](https://chatwithhuman.chrismai.ai/api/sales-chat): mode, lead fields, handoff contact, limits ## Optional - [Full text](https://chatwithhuman.chrismai.ai/llms-full.txt): all pages above inlined - [System status](https://chatwithhuman.chrismai.ai/status.md) - [Sitemap](https://chatwithhuman.chrismai.ai/sitemap.xml)