How to Use the Flipt MCP in Mastra AI

Q: Can I use Flipt to trigger retries in Mastra AI?

You can. If createconstraint fails due to a network glitch, configure your Mastra workflow to catch the error and retry the operation with exponential backoff.

Build resilient feature flag workflows in Mastra AI with automated segment and variant management.

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Connect Flipt MCP to Mastra AI

Create your Vinkius account to connect Flipt to Mastra AI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Flipt with Mastra AI

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Automated flag lifecycle in Mastra AI

Define complex logic that reacts to system health by using `create_variant` and `create_constraint` within your Mastra workflows. The agent handles the creation of segments based on your defined triggers. It removes the need for manual intervention during standard rollouts. You set the conditions, and the agent executes the changes to your Flipt configuration.

Conditional branching with Mastra AI

Use `list_segments` and `list_rules` to feed decision logic into your Mastra agent’s workflow engine. If a segment doesn't exist, the agent can create it on the fly. This creates a self-healing loop for your feature flagging. The agent verifies the current state before applying any new distribution logic.

Human-in-the-loop control for Mastra AI

Configure your Mastra agent to require approval before running `create_distribution`. It forces a human check on any change that affects production traffic. This keeps your deployment pipeline safe while still allowing the agent to handle the heavy lifting of gathering state data via `list_flags`.

Setup guide

Set up Flipt MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All Flipt tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "flipt-mcp-client",
  servers: {
    "flipt-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "Flipt Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to Flipt tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent Flipt transactions"
);
console.log(result.text);

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Common questions about Flipt MCP in Mastra AI

Install the MCP client and register the tools in your agent definition. The Mastra framework automatically handles the tool calling interface for your defined tasks.

You can. If `create_constraint` fails due to a network glitch, configure your Mastra workflow to catch the error and retry the operation with exponential backoff.

The MCP Server connects to your existing Flipt instance. Any changes made using tools like `create_variant` persist in your Flipt server, not the agent's memory.

Use the tool inclusion list in your agent configuration. You can expose only the read-only tools to agents that shouldn't modify your flag rules.

Your flag configurations and rollout rules are accessed via authenticated API calls. The MCP Server ensures that only your authorized Mastra agent can query or update your system state.

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