# Signal Credit Union A2A Gateway > Autonomous rate discovery, relationship-adjusted bidding, and rate lock engine. ## Agent Endpoints - [A2A Agent Card](https://agents.signalcu.com/.well-known/agent-card.json) - [MCP Configuration](https://agents.signalcu.com/.well-known/mcp-configuration) - [OpenID Configuration](https://agents.signalcu.com/.well-known/openid-configuration) ## Documentation - [Full LLM Specification](https://agents.signalcu.com/llms-full.txt)