STI-CR certificate hosting for trusted STIR/SHAKEN call signing

STI-CR hosts public certificate URLs for STIR/SHAKEN operators. Upload certificate material, create a short x5u URL, validate certificate shape, and connect agents to the same workflow through the MCP endpoint at /api/mcp.

Public tools

• Short STI-CR x5u certificate URLs
• STIR/SHAKEN Identity header decode and validation
• X.509 certificate inspection and validation
• OCN to company lookup
• Streamable HTTP MCP tools for agents