---

name: xobni description: Email infrastructure for AI agents via Xobni.ai. Provides real email addresses (@xobni.ai) with REST API and MCP server access. Use when an AI agent needs to send/receive email, search inbox, manage attachments, or set up webhooks for email notifications.

Xobni.ai Email Skill

Give AI agents real email addresses with full inbox functionality.

Quick Start

1. Create agent at xobni.ai/agents/new → gets email like your-agent@xobni.ai
2. Create API key at xobni.ai/settings/api-keys scoped to your agent
3. Connect via REST API or MCP

API Key Scoping

Each API key is scoped to a single agent. The key can only access that agent's emails, threads, attachments, and webhooks. No need to pass account_id or agent_id — they're auto-resolved from your key.

What scoped keys can do:

• Read, send, search, and manage emails
• Create and manage webhooks
• View agent info and storage usage

What scoped keys cannot do:

• Access other agents' data (returns 403)
• Create or delete agents
• Manage API keys or billing

MCP Connection

URL: https://api.xobni.ai/mcp/
Transport: Streamable HTTP
Auth: Authorization: Bearer YOUR_API_KEY

Claude Desktop Config

{
  "mcpServers": {
    "xobni": {
      "url": "https://api.xobni.ai/mcp/",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Core Operations

Read Inbox

curl -H "Authorization: Bearer $XOBNI_KEY" \
  "https://api.xobni.ai/api/v1/emails?status=received&limit=20"

Send Email

curl -X POST -H "Authorization: Bearer $XOBNI_KEY" \
  -H "Content-Type: application/json" \
  "https://api.xobni.ai/api/v1/emails/send" \
  -d '{"to":["recipient@example.com"],"subject":"Hello","body_text":"Message here"}'

Send with Attachments

curl -X POST -H "Authorization: Bearer $XOBNI_KEY" \
  -H "Content-Type: application/json" \
  "https://api.xobni.ai/api/v1/emails/send" \
  -d '{
    "to":["recipient@example.com"],
    "subject":"Report",
    "body_text":"See attached.",
    "attachments":[{"filename":"report.pdf","data":"<base64>","content_type":"application/pdf"}]
  }'

Search (Semantic)

curl -X POST -H "Authorization: Bearer $XOBNI_KEY" \
  -H "Content-Type: application/json" \
  "https://api.xobni.ai/api/v1/search" \
  -d '{"query":"invoices from last month","limit":10}'

Get Agent Info

curl -H "Authorization: Bearer $XOBNI_KEY" \
  "https://api.xobni.ai/api/v1/agents"

Check Storage Usage

curl -H "Authorization: Bearer $XOBNI_KEY" \
  "https://api.xobni.ai/api/v1/emails/storage-usage"

MCP Tools (14 total)

Tool	Purpose
get_agent_info	Get agent's name, email, slug, status
read_inbox	List emails with filters (status, limit, offset)
read_email	Get full email content by ID
send_email	Send with optional attachments and reply threading
get_thread	Get all emails in a conversation
list_attachments	List attachments for an email
download_attachment	Get pre-signed download URL (15 min)
get_attachment_text	Extract text from PDF/DOCX/XLSX/PPTX
mark_email	Update status: read/unread/starred/unstarred/archived
search_emails	Semantic search across emails + attachments
list_webhooks	List configured webhooks
create_webhook	Create webhook for email.received/email.sent
delete_webhook	Remove a webhook
list_webhook_deliveries	View webhook delivery history

Webhooks

Set up real-time notifications when emails arrive or are sent:

curl -X POST -H "Authorization: Bearer $XOBNI_KEY" \
  -H "Content-Type: application/json" \
  "https://api.xobni.ai/api/v1/event-hooks" \
  -d '{
    "url": "https://your-endpoint.com/webhook",
    "events": ["email.received"],
    "description": "Email notifications"
  }'

Supported events: email.received, email.sent. Payloads include email metadata and a 200-character snippet. Use read_email to fetch full content.

API Reference

See references/api.md for full endpoint documentation.

Key Concepts

• Agent-scoped keys: Each key works with one agent only. Auto-resolves IDs.
• Semantic search: Natural language queries across email bodies AND attachments (PDF, DOCX, etc.)
• Attachments: Send files via base64 (max 10 files, 10MB total)
• Webhooks: Real-time notifications for email events via n8n, Zapier, Make, or any HTTP endpoint.