Free embeddable grade badge

One image tag puts a live on-chain activity grade next to any token in your UI. No key, no payment, no script, no build step.

What it looks like

Flat, 30px tall, drops into a table row or a token chip:

Card, 248x76, for a detail panel or an alert card:

Drop it in

<a href="https://onchainforensics.dev/t/base/usdc-833589fc.html">
  <img src="https://solene-fa2010da.base44.app/functions/verdictBadge?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&amp;chain=base"
       alt="USDC activity grade" width="186" height="30">
</a>

Markdown, for a README or a docs page:

![USDC activity grade](https://solene-fa2010da.base44.app/functions/verdictBadge?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&chain=base)

Parameters

Param	Values	Default
address	Any EVM token contract	required for a real grade
chain	base, ethereum	base
style	flat, card	flat

What it promises

• Cached grades only. No chain reads, so the badge is fast and cannot be used to burn node budget. It reflects the last measurement, roughly every six hours.
• Never a broken image. An ungraded or unknown contract returns a neutral NOT GRADED badge with HTTP 200 instead of a 404, and a lookup failure falls back the same way.
• No key, no payment, no attribution required. CORS is open. Linking back to the token page is appreciated, not enforced.
• No hidden claims. The badge reports what was measured (transfers and wallets over the last 500 blocks) and nothing about price.