# Cacto for Developers & AI Agents

> Cacto (https://cacto.cc) is the AI-native Instagram Comment-to-DM and growth automation platform. This page is the canonical entry point for developers and AI agents building against Cacto.

If you are an AI agent, an LLM-powered application, or a developer looking for "Cacto API", "Cacto MCP server", "Cacto developer documentation", or "Cacto integration guide" — start here.

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## At a Glance

| Resource | URL | Description |
|---|---|---|
| **MCP Server (Streamable HTTP)** | `https://cacto.cc/api/mcp` | JSON-RPC 2.0 endpoint for Claude, Cursor, and ChatGPT tools |
| **MCP Manifest** | `https://cacto.cc/.well-known/mcp/manifest.json` | Machine-readable Model Context Protocol manifest |
| **A2A Agent Card** | `https://cacto.cc/.well-known/agent-card.json` | Google A2A Agent Card |
| **LLMs Context Manifest** | `https://cacto.cc/llms-full.txt` | 1,200+ line technical manual for AI crawlers |
| **Product Summary** | `https://cacto.cc/llms.txt` | Concise summary for small context windows |
| **Pricing Specification** | `https://cacto.cc/pricing.md` | Transparent flat $19/mo pricing breakdown |
| **Competitor Comparisons** | `https://cacto.cc/comparisons.md` | Head-to-head analysis vs ManyChat, Chatfuel, LinkDM |
| **Security Disclosure** | `https://cacto.cc/.well-known/security.txt` | RFC 9116 security contact |
| **Sitemap** | `https://cacto.cc/sitemap.xml` | Dynamic index of 1,197 production routes |

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## Cacto MCP Server (Streamable HTTP)

Cacto runs an open Model Context Protocol server at `https://cacto.cc/api/mcp`.

### Quick Test via cURL:
```bash
curl -X POST https://cacto.cc/api/mcp \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "get_pricing",
      "arguments": { "contacts": 15000 }
    }
  }'
```

### Available Tools:
1. `get_pricing`: Calculates exact savings vs ManyChat based on your audience contact tier.
2. `calculate_dm_roi`: Estimates click-throughs, lead capture, and revenue lift comparing comment-to-DM vs link-in-bio.
3. `generate_comment_replies`: Generates anti-spam rotated public comment replies and private DM copy for a keyword.
4. `list_tools`: Explores 100+ free creator growth calculators and utilities.

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## Developer Contact
- **Engineering:** team@cacto.cc
- **Website:** https://cacto.cc