Task-scoped email inboxes for AI agents: read mail, extract verification codes, and reply.
| Endpoint | https://machineinbox.com/mcp (streamable-http) |
|---|---|
| Registry version | 0.1.0 |
| Now | 11 tools · grade B (84) · pin ts_6890ed34cc76fc15221904768b372de4 · protocol 2025-06-18 |
| First / last listed | 2026-10-28 03:37 UTC / 2026-10-28 03:37 UTC |
| Grade over time | 2026-10-28: B (84), 11 tools |
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Tools: get_service_info create_inbox get_inbox list_messages get_message get_verification_code reply_to_message set_webhook get_webhook delete_webhook delete_inbox
get_service_info | Read the Machine Inbox service instructions: pricing, payment rails, endpoints, and limits. params: none |
create_inbox | Request a new paid inbox. Buying requires an out-of-band payment (Stripe MPP or x402 USDC on Base); this tool returns the live HTTP 402 payment challenge plus exact instructions to complete the purchase. Standard inbox: $2.00. params: idempotency_key |
get_inbox | Read an inbox: address, status, expiry, limits, and usage. params: token, inbox_id* |
list_messages | List messages in an inbox, newest first. Pass after=<newest createdAt seen> to poll for only new mail. params: token, inbox_id*, limit, after, before |
get_message | Fetch one message with parsed text, HTML, and attachment download URLs. params: token, inbox_id*, message_id* |
get_verification_code | Extract the newest one-time verification code or confirmation link from inbound mail. Ideal for signup and login flows. params: token, inbox_id*, sender |
reply_to_message | Send an included plain-text reply to the authenticated sender of an inbound message. params: token, inbox_id*, message_id*, text*, idempotency_key* |
set_webhook | Register or replace the inbox webhook: an HMAC-signed POST fires on every inbound message with metadata, extracted verification codes, and injection risk (never the body). Returns the signing secret. params: token, inbox_id*, url* |
get_webhook | Read the inbox webhook state: URL, delivery counters, and whether it is disabled. The secret is only returned by set_webhook. params: token, inbox_id* |
delete_webhook | Remove the inbox webhook. params: token, inbox_id* |
delete_inbox | Delete an inbox: revokes the token and erases stored mail. params: token, inbox_id* |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.