# DropAgent Ringless voicemail + SMS for AI agents. - REST: /api/v1 with Authorization: Bearer da_test_ or da_live_ - OpenAPI: /openapi.json - MCP: POST /api/mcp (streamable HTTP, same bearer key). Discovery: /.well-known/mcp.json - Signup (sandbox key): POST /api/v1/signup {"name","email"} - Quickstart: /docs/quickstart - Docs markdown: /docs/quickstart.md /docs/rest.md /docs/mcp.md - Bulk sends require a dry run, then dryRun false plus confirmToken Compliance is enforced on the server: consent record, internal DNC, STOP keywords, quiet hours by recipient timezone, daily caps, dedupe, kill switch.