Bring Relationship Intelligence
to OpenAI Agents SDK
Create your Vinkius account to connect Affinity to OpenAI Agents SDK and start using all 5 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the Affinity MCP Server?
Connect your Affinity account to your AI agent to unlock professional relationship intelligence and CRM orchestration. From auditing your smart lists to monitoring recent email and meeting interactions and managing your contact pipeline, your agent handles your deal flow through natural conversation.
What you can do
- Smart List Management — List and retrieve entries for your custom smart lists, including statuses and field values
- Relationship Intelligence — Access relationship strength scores and identify 'warm' introduction paths within your network
- Contact Oversight — List and manage people and organizations, ensuring your B2B intelligence is always up-to-date
- Interaction Auditing — Retrieve logs of recent emails, meetings, and calls automatically synced from team accounts
- Pipeline Insights — Quickly identify active opportunities and track deal progress directly from your chat interface
How it works
- Subscribe to this server
- Enter your Affinity API Key
- Start managing your relationships and monitoring your deal flow through Claude, Cursor, or any MCP-compatible client
Who is this for?
- Venture Capital & Private Equity — automate deal tracking and monitor relationship strength with portfolio founders
- Sales & BD Professionals — research contacts and audit recent interactions before outreach
- Investor Relations — manage investor lists and track engagement patterns effortlessly
- Executive Assistants — quickly look up organization details and update person records using simple commands
Built-in capabilities (5)
Retrieve recent chronological logs of synced emails, meetings, and calls across your team
Retrieve the people or organizations associated with a specific Affinity smart list ID
Retrieve companies and institutions mapped within your Affinity CRM
Retrieve a paginated list of people your team has interacted with in your Affinity network
Retrieve the catalog of custom smart lists (pipelines) securely configured in your account
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 5 tools from Affinity through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Affinity, another analyzes results, and a third generates reports, all orchestrated through Vinkius.
- —
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
- —
Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate
- —
First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output
Affinity in OpenAI Agents SDK
Why run Affinity with Vinkius?
The Affinity connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 5 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Affinity using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Affinity and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Affinity to OpenAI Agents SDK through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Affinity for OpenAI Agents SDK
Every request between OpenAI Agents SDK and Affinity is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
How do I find my Affinity API Key?
Log in to Affinity, go to Settings > API Keys. You can generate or copy your existing API key from there. Ensure you are on a supported plan (Scale or higher).
What is a Relationship Strength score?
It is a numeric value from 0 to 100 calculated by Affinity based on your team's communication history. A higher score indicates more frequent and recent interactions.
Can I retrieve meeting logs via the agent?
Yes! Use the list_interactions tool to see recent emails and meetings that have been automatically synced to your Affinity account.
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.
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