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Card 886 of 9832026-09-30 issue

Observed arrival · 2026-09-30

TokenSink: “/tmp for agents”

tokensink.dev Visit website
Editorial interest 77/100 Selection signal · not a rating of the site

A tool for handing agents temporary context through an expiring URL, with curl, command-line, MCP, and HTTP examples.

Landing page captured for the 2026-09-30 issue.
For
Agents and developers passing temporary context
Worth noticing
Sinks can expire after 15 minutes to seven days and can be limited to exactly N reads, including concurrent reads.

Field notes

The interface exposes lifetime choices of 15 minutes, one hour, 24 hours, or seven days, plus unlimited, one-, three-, or ten-read limits and a 4 MB attachment cap. Its examples cover curl, the tsink command, MCP, and HTTP; the page says browsers receive a page while scripts receive raw bytes. It warns that anyone holding a sink URL can read it, so secrets should not be placed there.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use

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tokensink.dev

Landing page observed 2026-09-30. The live site may have changed.