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Card 037 of 9932026-09-20 issue

Observed arrival · 2026-09-20

Ambit puts an ambit around agent spending

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Editorial interest 78/100 Selection signal · not a rating of the site

Ambit evaluates an agent’s proposed payment against deterministic rules before allowing, escalating, or blocking the transaction.

Landing page captured for the 2026-09-20 issue.
For
Developers building agents that can spend money
Worth noticing
The decision path excludes LLM calls and uses exact, single-use EIP-3009 authorisations.

Field notes

Ambit models agent payment as a sequence of bounded proposals and policy decisions rather than a simple wallet-balance check. Its stated control path keeps the model outside the money decision, produces a digest for an allowed transaction, and separates decision, payment, delivery, and anchor in the receipt record. The site also describes delegated Dynamic wallet credentials, unilateral revocation, and single-use EIP-3009 authorisations instead of a standing token allowance.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use
ƒJavaScriptBrowser-side code central

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ambit.surf

Landing page observed 2026-09-20. The live site may have changed.