Observed arrival · 2026-11-06
Toolbooth’s webhook inbox for AI agents
A pay-per-call webhook inbox that lets agents receive and poll results from asynchronous APIs.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- AI agents and developers handling asynchronous API callbacks
- Worth noticing
- Inbox limits are 100 messages of up to 256 KB each, with retention up to seven days; payloads are stored as bytes and never parsed or executed.
Field notes
The documented creation response includes an inbox ID, callback URL, bearer token, messages URL, and expiry time. The receiving async API posts to the callback URL without charge, while the agent authenticates when retrieving messages and can delete the inbox. The page also specifies that cookie, authorization, and client-IP headers are dropped.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue