create_multi_channel_verification

holdings.proof/mcp-server · Verify this server

Create a multi-channel phone verification: one phone number challenged over several channels at once (OR / first-wins). The first channel the user completes wins, yields a single proof token, and cancels the losing siblings. Exactly one proof is billed, at the winning channel's completion — not one per channel, and nothing at creation. Agent usage: the response includes a `group_id` (format vg_<hex>) and a `channels` array — each block carries a `deep_link` (WhatsApp/Telegram) or an `sms_message` to present to the user — pass the `deep_link` to render_auth_link. A block's `qr_text` is that same link already rendered as QR art, not an alternative address: print it verbatim inside a fenced code block or leave it out. Poll get_multi_channel_verification_status with the group_id to track completion and retrieve the proof token when a channel verifies. ACCESS: needs a Proof account. Authenticate this client (Claude Code: /mcp → Authenticate), then call this tool again. start_login does NOT open this tool.