Bring Feature Flags
to Pydantic AI
Learn how to connect Flipt to Pydantic AI and start using 9 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Flipt MCP Server?
Connect your Flipt instance to any AI agent to orchestrate feature management and progressive delivery through natural conversation.
What you can do
- Flag Management — List and inspect feature flags across different namespaces to understand your current feature states
- Targeting & Segments — Retrieve segments and create constraints to define specific user subsets for targeted rollouts
- Rollout Control — List rules and rollouts, and create distributions to manage percentage-based releases and canary deployments
- Variants — Create and manage flag variants to return different values based on evaluation logic
- Auth & Infrastructure — List authentication tokens and namespaces to understand your environment's structure and access levels
How it works
- Subscribe to this server
- Enter your Flipt URL and API Token
- Start managing your feature flags from Claude, Cursor, or any MCP-compatible client
Who is this for?
- DevOps Engineers — quickly audit rollout configurations and namespace partitions without leaving the terminal or IDE
- Product Managers — check the status of feature flags and segments to verify release progress
- Developers — create variants and constraints directly while coding to speed up feature implementation
Built-in capabilities (9)
Create a constraint for a segment
Create a distribution for a rule
Create a new variant for a flag
List flags in a namespace
List all namespaces
List rollouts for a flag
List rules for a flag
List segments in a namespace
List authentication tokens
Why Pydantic AI?
Pydantic AI validates every Flipt tool response against typed schemas, catching data inconsistencies at build time. Connect 9 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
- —
Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
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Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Flipt integration code
- —
Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
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Dependency injection system cleanly separates your Flipt connection logic from agent behavior for testable, maintainable code
Flipt in Pydantic AI
Flipt and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Flipt to Pydantic AI 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 | 4,000+ 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 Flipt in Pydantic AI
The Flipt 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 9 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Pydantic AI 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
Flipt for Pydantic AI
Every tool call from Pydantic AI to the Flipt MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I list all feature flags in a specific namespace?
Yes! Use the list_flags tool and provide the namespaceKey (e.g., 'default'). The agent will return all flags configured within that partition.
How do I define a new variant for an existing flag?
You can use the create_variant action. You'll need to specify the namespaceKey, flagKey, and the new variant's key and name.
Is it possible to see the rollout configuration for a specific flag?
Absolutely. Use the list_rollouts tool by providing the target namespaceKey and flagKey to retrieve the current rollout strategy.
How does Pydantic AI discover MCP tools?
Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.
Does Pydantic AI validate MCP tool responses?
Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.
Can I switch LLM providers without changing MCP code?
Absolutely. Pydantic AI abstracts the model layer. your Flipt MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.
MCPServerHTTP not found
Update: pip install --upgrade pydantic-ai
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