Bring Cloud Communications
to Cursor
Learn how to connect 8x8 to Cursor and start using 10 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the 8x8 MCP Server?
Connect your 8x8 Connect account to any AI agent and manage SMS, chat, voice, and verification workflows through natural conversation.
What you can do
- SMS Messaging — Send text messages to any phone number worldwide and track delivery status
- Chat Messaging — Send messages through WhatsApp, Viber, and LINE channels
- Voice Calls — Initiate text-to-speech voice calls and check call status
- Phone Verification — Send OTP codes via SMS and validate user submissions
- Account Management — List sub-accounts and check account balance
- Delivery Tracking — Monitor SMS and voice call delivery status in real time
How it works
1. Subscribe to this server
2. Enter your API Key and Sub Account ID from your 8x8 Connect dashboard
3. Start sending messages from Claude, Cursor, or any MCP client
Who is this for?
- Customer Support — send SMS confirmations and initiate voice callbacks from AI
- Product Teams — integrate phone verification into onboarding flows
- Operations — monitor account balance and sub-account usage programmatically
Built-in capabilities (10)
Verify API connectivity
Verify an OTP code
Get account balance
Get voice call status
Get SMS delivery status
List sub-accounts
Send a chat message
Send an SMS message
Send a verification code
Make a text-to-speech call
Why Cursor?
Cursor's Agent mode turns 8x8 into an in-editor superpower. Ask Cursor to generate code using live data from 8x8 and it fetches, processes, and writes. all in a single agentic loop. 10 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.
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Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context
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Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards
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MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment
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VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools
8x8 in Cursor
8x8 and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect 8x8 to Cursor through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for 8x8 in Cursor
The 8x8 MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 10 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Cursor only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
8x8 for Cursor
Every tool call from Cursor to the 8x8 MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can my AI send SMS and track delivery status?
Yes. Use send_sms to deliver a text message, then get_sms_status with the returned message ID to check delivery confirmation in real time.
How does phone verification work through the AI?
Two steps: first, send_verification sends an OTP code to the user's phone. Then, check_verification validates the code the user submits. Both operations run through the 8x8 Verify API.
Can I send messages through WhatsApp and other chat channels?
Yes. The send_chat_message tool supports WhatsApp, Viber, and LINE. Just specify the channel, recipient identifier, and message text.
What is Agent mode and why does it matter for MCP?
Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.
Where does Cursor store MCP configuration?
Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.
Can Cursor use MCP tools in inline edits?
No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.
How do I verify MCP tools are loaded?
Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.
Tools not appearing in Cursor
Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.
Server shows as disconnected
Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.