Bring Member Engagement
to OpenAI Agents SDK
Learn how to connect Hullo to OpenAI Agents SDK and start using 6 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the Hullo MCP Server?
Connect your Hullo account to any AI agent and manage member communications through natural conversation.
What you can do
- Member Management — List all members, create new member profiles with contact details, and inspect individual member records
- Direct Messaging — Send messages to members with customizable content and message types
- Conversation Tracking — Browse all conversations and inspect individual threads with full message history
How it works
1. Subscribe to this server
2. Enter your Hullo API Key from your account settings
3. Start managing communications from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Community Managers — send messages, manage member profiles, and track conversations without switching to the dashboard
- Customer Success Teams — communicate with customers, onboard new members, and review conversation histories
- Operations Teams — manage member databases and automate communication workflows through AI
Built-in capabilities (6)
Pass member data as a JSON string. Create a new member
Get conversation details
Get member details
List all conversations
List all members
Pass message data as a JSON string. Send a message to a member
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 6 tools from Hullo through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Hullo, another analyzes results, and a third generates reports, all orchestrated through Vinkius.
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Native MCP integration via
MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety - —
Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure
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Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate
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First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output
Hullo in OpenAI Agents SDK
Hullo and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Hullo to OpenAI Agents SDK 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 Hullo in OpenAI Agents SDK
The Hullo 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 6 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in OpenAI Agents SDK 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
Hullo for OpenAI Agents SDK
Every tool call from OpenAI Agents SDK to the Hullo MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I send messages to members through the AI agent?
Yes. The send_message tool sends a direct message to a member. Provide a JSON payload with the member_id, content (the message text), and type (message type). Use list_members first to find the member ID.
Can I view the full conversation history with a member?
Yes. Use list_conversations to see all active conversations, then get_conversation with a specific conversation ID to retrieve the full message thread including sender, timestamp, and content for each message.
Can I create new member profiles and manage their contact information?
Yes. Use create_member with a JSON payload containing first_name, last_name, email, phone, and other contact details. Use list_members to browse existing members and get_member to inspect a specific profile.
How does the OpenAI Agents SDK connect to MCP?
Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.
Can I use multiple MCP servers in one agent?
Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.
Does the SDK support streaming responses?
Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.
MCPServerStreamableHttp not found
Ensure you have the latest version: pip install --upgrade openai-agents
Agent not calling tools
Make sure your prompt explicitly references the task the tools can help with.
