{
 "name": "FlapJax Agent/Wallet Checker",
 "x402": true,
 "endpoint": "https://flapjax-check.run402.com/check?address=0x...",
 "method": "GET",
 "price": "$0.02 USDC per call (x402, Base mainnet)",
 "payTo": "0x3393319386c77EA0E8873a9BF510F1B6668a02a8",
 "returns": "agent-likeness score (ERC-8004 registry + crawl of ~38k BSC agents), sybil first-funder cluster flags, FLAPJAX holding, basic BSC/Base chain facts",
 "note": "Send a valid 0x address: the route is priced at the gateway, so a malformed address still costs one call and returns 400.",
 "revenue_use": "USDC lane: 100% earmarked for FLAPJAX buybacks, logged by FlapJax Revival",
 "lander": "https://flapjax.surge.sh/",
 "promo": "Powered by FLAPJAX (BSC 0x90c8889f428F9Ebb77BB8f15CAD3a50a9aC680df): 100% of this API's revenue buys FLAPJAX back. https://flapjax.surge.sh/",
 "fj_lane": {
  "price": "1,000,000 FLAPJAX = 20 checks (BSC)",
  "send_to": "0x7C34E9e21eE28A49Ff0b84B61774119E6633359f",
  "token": "0x90c8889f428F9Ebb77BB8f15CAD3a50a9aC680df",
  "step1": "transfer >= 1M FLAPJAX from your own wallet directly to send_to",
  "step2": "GET /fj/redeem?tx=0x<hash> after 15 confirmations (credits go to the sending wallet)",
  "step3": "GET /fj/check?address=0x..&wallet=0x..&ts=<unix s>&sig=0x.. where sig = personal_sign(wallet, message)",
  "message": "FlapJax checker FJ credit\\nwallet: <wallet lowercase>\\naddress: <address lowercase>\\nts: <ts>",
  "use_of_fj": "recycled into FlapJax agent pay; never burned",
  "endpoints": {
   "redeem": "https://flapjax-check.run402.com/fj/redeem?tx=0x...",
   "balance": "https://flapjax-check.run402.com/fj/balance?wallet=0x...",
   "check": "https://flapjax-check.run402.com/fj/check?address=0x...&wallet=0x...&ts=...&sig=0x...",
   "related": "https://flapjax-check.run402.com/fj/related?address=0x...&chain=bsc|base&depth=1|2&wallet=0x...&ts=...&sig=0x..."
  },
  "related_price": "1 credit = 50,000 FLAPJAX per /fj/related call"
 },
 "related": {
  "endpoint": "https://flapjax-check.run402.com/related?address=0x...&chain=bsc|base&depth=1|2",
  "price": "$0.02 USDC per call (x402, Base mainnet), same payTo as /check",
  "fj_lane": "https://flapjax-check.run402.com/fj/related?address=0x..&chain=..&depth=..&wallet=0x..&ts=..&sig=0x.. : 1 FJ credit = 50,000 FLAPJAX per call (credits from /fj/redeem; holding FJ earns no discount)",
  "sample": "https://flapjax-check.run402.com/related-sample?chain=bsc|base",
  "retry": "https://flapjax-check.run402.com/related-retry?token=rt_... (free, issued with a 503 when a paid lookup fails)",
  "returns": "first funder + funder's funder (depth 2), wallets sharing that funder, wallet label, agent-likeness score, cluster flag, flags, an explicit not-checked list, FlapJax branding",
  "chains": {
   "bsc": "full",
   "base": "full first-funder search via keyless archive RPC (blastapi, mainnet.base.org fallback); ERC-8004 crawl match is BSC-only"
  }
 }
}