stepfunctions-tool-mcp-server
A Model Context Protocol (MCP) server for AWS Step Functions to select and run state machines as MCP tools without code changes.
Discovery Score
53/100
8,799 stars
1,457 forks
The Open Source Drop Lens
Step Functions MCP lets your AI assistant start and inspect AWS Step Functions workflows. Trigger state machines, check execution status, and review outputs. Config is AWS credentials in your MCP setup.
Step Functions bills per state transition. The free tier covers 4,000 transitions per month. The MCP itself is free. AWS Labs maintains it.
Useful for teams with complex orchestration workflows who want to test and debug without the console. The catch: starting workflows from your AI assistant with no confirmation step is risky. Scope your IAM to non-production state machines.
Cost Breakdown
## Free Tier The MCP server itself is completely free and open source.
## Self-Hosted Runs locally or on your own infrastructure.
## Paid No paid tier. The underlying service may have its own pricing.
Free and open source. The underlying service may have its own costs.
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