Caspian AI

One integration to give any AI agent a phone number, inbox, and presence across every major messaging channel.

Freemium· Pricing tiers referenced on the site but specific dollar amounts are not published; contact sales for production usage.Agents

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Best for

Engineering teams building production AI agents who need to meet users on whatever messaging channel they already use, without maintaining a separate integration and identity per channel.

Skip if

Non-technical users looking for a no-code chatbot builder, or teams whose agents only need a web chat widget and have no cross-channel messaging requirement.

Caspian AI is a messaging-infrastructure layer for AI agents. Instead of wiring each agent one-by-one into WhatsApp, iMessage, Slack, Telegram, WeChat, Instagram, voice and email, developers install a single SDK (npm or pip) and Caspian handles the channel-specific plumbing: number provisioning, handle registration, webhook management, media handling, delivery receipts, and threaded history. Each agent gets its own persistent identity — a number, an inbox, a handle, and a conversation history that follows it across channels — so a support bot, sales SDR, receptionist, or scheduling assistant looks like a real, contactable entity rather than a website widget.

The platform is intentionally model- and framework-agnostic. It advertises compatibility with the OpenAI Agents SDK, Anthropic's agent SDK, Claude Code, Codex, and other frameworks, so the LLM stack is entirely the developer's choice. On top of raw transport, Caspian layers an intelligent routing engine that picks a channel based on urgency, timing, and the existing relationship with the recipient — for example escalating from email to SMS when a user has stopped responding, or staying inside iMessage for a warm customer thread.

Typical workflows include shipping a customer-support agent that answers on whatever channel the customer opened, a sales agent that follows up across email and WhatsApp, a receptionist that fields voice calls and books meetings, or an internal ops agent that pings staff on Slack for approvals and falls back to Telegram. The 'two minutes to first message' onboarding and per-language snippets suggest it is aimed squarely at engineering teams who already have an agent working in a notebook and want to give it real-world reach without a multi-week integration sprint per channel.

Editor's take

Caspian is solving a boring but genuinely painful problem: agents that only live on a website are invisible, and integrating each messenger yourself is weeks of channel-specific misery. If the routing and identity layer holds up in production, this is the kind of infrastructure most agent teams end up needing eventually. The undisclosed pricing and early-stage feel are the main things to pressure-test before committing.

— The AI Tool Bible editorial team

Pros

✅ One SDK abstracts WhatsApp, iMessage, Slack, Telegram, WeChat, Instagram, voice, and email — no per-channel plumbing
✅ Model- and framework-agnostic; works with OpenAI Agents SDK, Anthropic SDK, Claude Code, Codex, and others
✅ Each agent gets a persistent identity (number, inbox, handle, history) rather than a per-channel silo
✅ Intelligent routing chooses the channel by urgency, timing, and relationship instead of blasting every surface
✅ Quick install via npm/pip with a 'two minutes to first message' onboarding target
✅ New channels are added continuously, reducing long-term integration debt

Cons

⚠️ Pricing is not transparently published; production cost is unclear without a sales conversation
⚠️ You still bring and pay for your own LLM — Caspian is transport, not intelligence
⚠️ Channels like WhatsApp and iMessage carry their own compliance, opt-in, and business-account requirements that a wrapper cannot remove
⚠️ Vendor lock-in risk: identity, routing, and conversation history live inside Caspian's abstraction
⚠️ Newer product with limited public case studies or SLAs visible from the landing page

Use cases

Cross-channel customer support agentOutbound sales SDR across email and WhatsAppAI receptionist handling voice calls and schedulingCommerce concierge on iMessage and InstagramInternal Slack/Telegram ops agent for approvalsAppointment reminders with channel fallbackWeChat-first support for APAC customersMulti-channel lead qualification bot