The Flow Verdict Chip

Two lines of HTML put a live safety grade inside your checkout, job board, or launch page — the moment before your user's money moves. These chips on this page are real and grading live:

WETH on Base (demo grade)

USDC on Base (demo grade)

Demo mode grades the contract through the free precheck. Live mode — with a free Builder Key — runs the full /api/verdict: contract + payee + address-poisoning look-alike detection.

Paste it in

<script src="https://flow-kg4x.vercel.app/chip.js"></script>

<!-- demo: contract grade, free -->
<div data-flow-verdict data-contract="0x…"></div>

<!-- live: contract + payee verdict on your Builder Key -->
<div data-flow-verdict
     data-contract="0x…" data-payee="0x…"
     data-expected-payee="0x…" data-amount="250"
     data-key="fbk_…"></div>

Claim a free Early Builder Key (100 calls) with one signed POST: sign flow:builder-key:claim:<your-address-lowercase>:<unix-seconds> with your wallet (EIP-191), then POST /api/builder-key {"address": "0x…", "ts": <unix-seconds>, "signature": "0x…", "botName": "…"} (ts within 300s of server time). The chip renders ALLOW / REVIEW / BLOCK with the score; on any failure it degrades to a neutral "grade unavailable" — it never invents a grade.

Terms

Demo grades are free. Live verdicts ride your Builder Key or the paid rail ($0.05 per bundled verdict retail); platforms embedding at volume take the platform deal — $500–$2,000/mo + $0.005–$0.01/call. Full machine-readable docs: llms.txt.