---
title: "Caspian"
description: "Lets your agents send and receive email, WhatsApp and SMS. Pricing: Free, open-source."
canonical: "https://vetted.tools/tools/caspian"
source: "https://vetted.tools/tools/caspian.md"
---

# Caspian

Lets your agents send and receive email, WhatsApp and SMS. Pricing: Free, open-source.

Source: https://vetted.tools/tools/caspian

Lets your agents send and receive email, WhatsApp and SMS

- Slug: `caspian`
- Website: [https://github.com/TryCaspian/caspian-sdk](https://github.com/TryCaspian/caspian-sdk)
- Free version: yes
- Starting price: free
- Pricing model: open-source
- Technical level: 5 of 5
- API available: no
- Categories: [AI Agents](https://vetted.tools/tools/ai-agents)

## From the vendor

Open-source communication SDK that lets AI agents send and receive messages over email, WhatsApp, Slack, Discord, Telegram, and SMS.

## Elsewhere on this site

- Home: https://vetted.tools/index.md
- Use cases: https://vetted.tools/use-cases.md
- Tools: https://vetted.tools/tools.md
- The brief: https://vetted.tools/brief.md
- Assessment: https://vetted.tools/assessment.md
- Site summary for agents: https://vetted.tools/llms.txt
- Every published page in one file: https://vetted.tools/llms-full.txt
- Every URL the site publishes: https://vetted.tools/sitemap.xml