A transparent proxy that deduplicates MCP tool calls by idempotency keys, preventing retries from re-executing side effects on any unmodified MCP server.
Demo MCP server for ACEL, a runtime verification middleware that blocks a rule-violating tool call before it executes. 5 tools (authenticate, read/validate/delete records, send payment) showing ACEL enforcing call ordering and state preconditions live via the official MCP SDK's middleware hook.
A multi-server implementation that uses OpenAI's LLM to orchestrate multiple tool servers providing web search, weather lookup, random facts, and PostgreSQL database querying capabilities.
A free public demo of Velora's agentic-commerce MCP toolkit, hosting ~49 real tool schemas with three honesty levels: pure validations, read-only sample data, and refused side-effect tools.