Comparison
DropAgent vs Slybroadcast
Slybroadcast is a ringless voicemail bureau. You pay them per delivered voicemail. DropAgent does not resell that bureau. The two-call flow runs on the carrier you connect.
Source: https://www.slybroadcast.com/
Price, as published
Slybroadcast's public site lists pay-as-you-go at $12 for 100 delivered voicemails, $24/250, $45/500, $70/1,000, $250/5,000, and $450/10,000. Monthly plans on that page start at $8/month for 100 deliveries and do not roll over.
DropAgent's sandbox is free. List prices start at $75/month, $20 under VoiceDrop's published $95 Budget plan, not a reprice of Slybroadcast's per-delivery packs. Carrier usage is billed by Telnyx, not by DropAgent, in this build.
| Topic | Slybroadcast | DropAgent |
|---|---|---|
| Billing unit | Delivered voicemails, on the packs published on slybroadcast.com. | A software seat. This repository does not charge per drop. The carrier does. |
| API | Their site lists API access and Zapier. | REST under /api/v1 and MCP tools such as send_drop and send_bulk_drops. |
| MCP | Not described on the public pages cited here. | Remote MCP at /api/mcp, bearer API key, streamable HTTP. |
| Compliance in the request path | Not described on those pricing blocks. | The server refuses a drop without a consent record, and it enforces DNC, STOP, quiet hours, caps, and dedupe. |