# Circuit Breaker State Manager MCP for AI Agents AI Agent Connect > Circuit Breaker State Manager MCP prevents your AI agents from repeatedly hitting broken services. It monitors the health of downstream dependencies and automatically pauses requests when a service fails, preventing wasted compute and cascading errors in complex agentic workflows. ## Overview - **Category:** infrastructure - **Price:** Free - **Endpoint:** https://edge.vinkius.com/vk_preview_kHEWIEaseLmyKZyIBRrPlViYTwIuzB5HuTabqatp/ai-agent-connect - **Tags:** circuit-breaker, error-handling, resilience, state-management, fault-tolerance ## Description Running complex agentic workflows often means your AI client is constantly talking to various external APIs, databases, and microservices. The problem is that when one of those services goes down or starts lagging, your agent keeps trying to call it anyway. This leads to a massive waste of tokens, unnecessary latency, and a chain reaction of failures that can crash your entire process. This MCP acts as a safety valve for your automation. It tracks the health of every service your agent interacts with, stepping in to pause requests the moment a service starts failing. Instead of blindly hammering a broken endpoint, your agent recognizes the outage and waits for a cooldown period before trying again. You can manage these thresholds and monitor service status through the Vinkius platform, ensuring your workflows remain resilient even when the underlying infrastructure is shaky. It effectively turns a fragile sequence of calls into a robust, self-healing system that knows exactly when to push forward and when to back off. ## Tools ### configure_circuit Adjust the sensitivity or behavior of the circuit breaker for a specific service. This lets you set custom error limits and cooldown times. ### get_circuit_status Check the current health and state of the circuit breaker. Use this to see if a service is currently blocked or open for calls. ### record_result Update the circuit breaker based on whether a service call succeeded or failed. This keeps the health tracking accurate. ## Prompt Examples **Prompt:** ``` Is the payment gateway service currently healthy? ``` **Response:** ``` The payment gateway is currently in a **CLOSED** state. All service calls are permitted and functioning normally. ``` **Prompt:** ``` The weather API is returning 503 errors. What should I do? ``` **Response:** ``` You should report the failure to the state manager. | Action | Purpose | | :--- | :--- | | **record_result** | Mark the call as a failure to increment the error count. | | **configure_circuit** | Adjust the threshold if this service is known to be flaky. | ``` **Prompt:** ``` How long until the database service tries to connect again? ``` **Response:** ``` The database service is currently **OPEN**. It is scheduled to enter the **HALF_OPEN** state in approximately **45 seconds**. ``` ## Capabilities ### Pause failing service calls Automatically stops your agent from attempting to use a service that is currently offline or unstable. ### Monitor service health Check the real-time status of your downstream dependencies to see if they are operational. ### Adjust failure thresholds Change how many consecutive errors are allowed before the system triggers a protective shutdown. ### Track service recovery Automatically tests if a service is back online after a cooldown period ends. ### Update call outcomes Feed the results of every service interaction back into the state manager to keep health data accurate. ## Use Cases ### Handling flaky third-party APIs An agent trying to fetch weather data hits a rate limit. Instead of retrying every second, the circuit breaker trips and waits for the limit to reset. ### Managing database connection drops When a database goes offline, the agent stops trying to write records, preventing a backlog of failed tasks and wasted compute. ### Orchestrating multi-service workflows An agent performing a complex sequence of tasks detects a failure in step two and pauses the entire chain to prevent corrupted state. ### Resilient web scraping If a target website starts returning 500 errors, the agent backs off automatically rather than getting its IP flagged for aggressive retries. ## Benefits - Stop wasting tokens on calls to services that are clearly offline. - Prevent cascading failures by isolating broken dependencies immediately. - Automate service recovery by letting the agent try again once the cooldown ends. - Gain visibility into service health using get_circuit_status to see what's actually working. - Customize error tolerance for different APIs using configure_circuit to match their reliability. ## How It Works The bottom line is that your agent stops wasting time on broken links and waits for them to fix themselves. 1. Connect the MCP to your AI client via Vinkius 2. Configure the failure thresholds and cooldown settings for your specific services 3. The agent begins reporting call results, and the circuit breaker starts managing service states automatically ## Frequently Asked Questions **How does Circuit Breaker State Manager protect my AI agents?** It prevents your agents from repeatedly attempting to use services that are down. By pausing requests during outages, it saves compute resources and prevents your agent from getting stuck in endless error loops. **Can I customize how many errors trigger a service shutdown?** Yes. You can adjust the failure thresholds for any specific service to match its reliability, ensuring the circuit only trips when a real problem occurs. **Will my agent automatically try the service again after a failure?** Yes. Once the cooldown period passes, the system moves to a state that allows the agent to test the service again to see if it has recovered. **How do I know if a service is currently blocked?** You can check the real-time health and status of any service at any time to see if the circuit is open, closed, or in a testing state. **Is this MCP compatible with my existing AI client?** Yes, it works with any MCP-compatible client like Claude, Cursor, or Windsurf through the Vinkius platform. **What is the purpose of the circuit breaker?** It prevents cascading failures by stopping requests to a service that is currently failing, allowing it time to recover. **How do I check if a service is currently blocked?** You can use the `get_circuit_status` tool to check the current state and see if `allowCall` is true. **Can I customize the failure threshold?** Yes, use the `configure_circuit` tool to set a custom `failureThreshold` for any specific service.