{"id":"4e3ab5ae-54c9-4004-ac49-4dfb55586b29","shortId":"TZH7cV","kind":"x402","title":"Buy FLASH tokens with a custom USDC amount via x402 payment on Base","tagline":"Buy FLASH tokens with a custom USDC amount via x402 payment on Base","description":"This x402-enabled endpoint at flash.x420.dev allows agents and users to purchase FLASH tokens (contract 0x4899bfF1664675FFE4b2546d626b41d86f0bDb07) by spending a custom USDC amount. FLASH is a token created via Clanker on the Base network. The endpoint is part of the x420.dev platform, which provides x402-payable token purchase actions (referred to as \"Puff\" actions) for Clanker-launched tokens.\n\nBased on the site's x402 stats, the service has processed a small number of transactions (2 total at time of crawl) with a 100% success rate, average latency of 2.79 seconds, and a trust score of 83%. The token page links to both Clanker and x402scan for on-chain verification. No formal API documentation, OpenAPI schema, or pricing page exists — the /docs, /api, /pricing, and /README paths all return placeholder pages. The x402 probe returned a 405 status rather than the expected 402 challenge, which may indicate the endpoint requires specific request methods or parameters.\n\nGiven the lack of documentation, schema, and the very low transaction volume, this endpoint should be considered experimental. Users should verify token details and contract addresses independently before transacting.","tags":[],"capabilities":["x402-payment","token-purchase","custom-usdc-amount","base-network","clanker-token"],"categories":["crypto","defi"],"synonyms":["FLASH token buy","x402 token swap","USDC to FLASH","Clanker token purchase","x420 puff","Base chain token buy","402 payment protocol token"],"warnings":["No API documentation exists — /docs, /api, /pricing, /README all return placeholder pages","x402 probe returned HTTP 405 instead of the expected 402 challenge, suggesting the endpoint may require specific HTTP methods or is misconfigured","Extremely low transaction volume (2 total) — this is experimental","Request/response schema is entirely inferred; the example request JSON is a guess based on the UI label 'Amount in USDC'","Token contract should be independently verified before transacting"],"endpointUrl":"https://flash.x420.dev/api/puff-custom","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://flash.x420.dev/api/puff-custom","description":"Buy custom USDC amount worth of FLASH tokens 0x4899bfF1664675FFE4b2546d626b41d86f0bDb07","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"amount":{"type":"string","required":false,"description":"Optional amount in USDC (e.g., '10', '10.5', '0.5'). Defaults to 5 if not provided."}}},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"maxAmountRequired":"5000000","maxTimeoutSeconds":120}]},"qualityScore":"0.150","qualityRationale":"No API documentation, no OpenAPI schema, no x402 challenge returned on probe (405 instead of 402), no example responses, and only 2 total transactions. The endpoint exists and the landing page provides minimal stats, but nearly everything about the API contract must be guessed.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-18T18:52:34.847Z","embedding":[-0.014892578,-0.028259277,-0.0015382767,0.027450562,0.02670288,-0.05102539,0.033599854,0.022399902,0.037719727,-0.030944824,0.041290283,0.005329132,-0.045196533,-0.03225708,-0.0026836395,-0.00008583069,-0.008918762,-0.021118164,-0.045562744,0.007347107,0.0069999695,-0.034179688,0.008056641,-0.0031661987,-0.0128479,-0.02067566,0.00497818,-0.026657104,-0.0068969727,-0.016830444,0.053100586,-0.045837402,0.012306213,-0.015312195,-0.010528564,-0.004337311,0.0132751465,0.032958984,0.013572693,-0.002609253,0.010025024,-0.028366089,-0.017578125,0.032440186,-0.009613037,0.02305603,-0.008964539,-0.023345947,-0.017654419,0.045806885,-0.0058517456,0.015083313,-0.037384033,0.045562744,-0.020095825,0.006340027,-0.0041885376,-0.004146576,-0.008293152,0.01965332,-0.01348114,-0.05267334,-0.0014638901,-0.017791748,0.03463745,0.034332275,-0.0037155151,0.031677246,0.024108887,0.09637451,0.01725769,0.020843506,0.036712646,-0.02166748,-0.020874023,0.0018806458,-0.005569458,0.021606445,0.004863739,-0.020401001,-0.033935547,-0.04171753,-0.0847168,-0.026550293,-0.020767212,-0.03768921,-0.019012451,0.025161743,-0.0015964508,-0.04446411,-0.06286621,0.024353027,-0.020614624,-0.020263672,-0.019760132,-0.02130127,-0.038482666,0.0069618225,-0.005722046,0.012199402,0.0069885254,-0.0317688,0.02709961,-0.0042495728,0.064941406,0.042053223,0.030960083,0.019592285,0.005191803,0.013145447,-0.04043579,0.013473511,-0.035186768,0.022201538,0.020141602,-0.010238647,-0.020462036,-0.0025348663,-0.00806427,0.025314331,-0.0003888607,0.030838013,0.008720398,0.0018949509,-0.029388428,-0.03656006,0.022094727,-0.008834839,-0.042877197,-0.025360107,0.010131836,-0.015327454,0.0067977905,-0.033416748,-0.025939941,0.017547607,-0.021408081,-0.026779175,-0.060272217,0.006088257,0.009757996,-0.013114929,0.0446167,0.014602661,-0.09197998,0.0010023117,-0.041992188,0.00957489,-0.053741455,0.018081665,0.0049209595,-0.016342163,0.0006990433,-0.024490356,0.018753052,-0.06793213,-0.010971069,0.017868042,-0.025634766,0.027954102,-0.008453369,0.0075683594,0.006259918,-0.034088135,-0.017730713,-0.006401062,0.0042495728,-0.027816772,-0.07873535,-0.006175995,0.017364502,-0.006504059,-0.023010254,-0.029800415,-0.052734375,-0.06335449,-0.03781128,0.006904602,0.0075531006,0.0033454895,0.021011353,0.0049819946,0.011444092,-0.017807007,-0.02494812,-0.0014181137,-0.0635376,0.02960205,0.024932861,0.013587952,0.0010576248,0.029708862,0.004234314,-0.021408081,-0.01979065,0.018676758,0.0073661804,-0.043945312,0.02168274,0.0014915466,0.028564453,-0.0022964478,0.02923584,0.053375244,-0.016998291,-0.009994507,-0.017044067,0.0047340393,0.019256592,-0.0066108704,0.021270752,0.0066375732,-0.028259277,0.011260986,-0.055908203,-0.025421143,0.014732361,0.020843506,-0.016662598,0.0028190613,0.00617218,0.013931274,0.046417236,0.032318115,-0.05331421,0.08892822,0.004169464,0.00086307526,-0.0068626404,-0.024291992,0.009475708,0.06689453,-0.011505127,-0.010063171,-0.018295288,0.0149002075,-0.007865906,-0.03970337,0.014434814,-0.04498291,-0.048034668,-0.028945923,0.03488159,-0.010131836,-0.029464722,-0.014350891,-0.045074463,-0.056884766,0.04034424,0.031219482,0.06829834,-0.006626129,-0.015914917,-0.007232666,0.002500534,-0.060943604,0.07159424,0.017120361,-0.013641357,-0.0049858093,0.05166626,-0.0234375,-0.040924072,0.018692017,0.0050315857,-0.021438599,-0.014373779,0.017105103,-0.04425049,-0.0071487427,0.035705566,0.039123535,0.050811768,-0.034698486,-0.06604004,-0.03567505,0.012107849,0.0046310425,-0.016342163,-0.0045318604,0.001405716,-0.006778717,0.0038833618,-0.018707275,-0.011009216,0.0055656433,0.06781006,0.0044898987,0.025238037,-0.0059661865,-0.019454956,-0.006046295,0.04727173,-0.035583496,-0.028671265,0.017501831,0.04360962,-0.02532959,0.028289795,-0.0066337585,0.005115509,0.05041504,-0.005191803,-0.0004644394,0.009674072,0.047027588,0.04788208,0.01789856,0.044189453,0.011291504,-0.013206482,0.032043457,0.00819397,-0.011917114,0.029830933,-0.0039978027,0.09210205,0.018417358,-0.051879883,-0.029281616,-0.011543274,-0.050994873,0.02319336,-0.043029785,0.05218506,-0.023010254,0.018356323,0.02142334,0.0053100586,-0.016647339,0.024230957,0.00089502335,0.03262329,-0.023254395,-0.03967285,-0.006729126,0.0501709,-0.038482666,0.015327454,0.0043792725,0.012138367,-0.053527832,-0.006702423,-0.015197754,-0.034606934,-0.007484436,0.0026779175,-0.009712219,0.013946533,0.0151901245,-0.03656006,0.026123047,-0.019012451,-0.008148193,0.033081055,0.014839172,0.007904053,-0.063964844,-0.022827148,-0.013389587,-0.0057868958,0.07507324,0.010856628,-0.016296387,0.027526855,-0.007549286,-0.0181427,-0.037353516,0.0063209534,-0.08282471,0.02784729,0.0073547363,-0.0006084442,-0.033355713,-0.00356102,0.019607544,0.03845215,0.056396484,0.0340271,0.035003662,0.08331299,-0.022369385,-0.014968872,0.039031982,-0.02381897,0.00041413307,0.036132812,0.020324707,-0.04827881,-0.029754639,0.02331543,-0.015563965,-0.026123047,-0.03112793,0.018356323,0.05307007,0.07092285,0.004211426,0.02003479,0.07092285,0.009895325,0.042938232,-0.013687134,-0.0435791,0.012191772,-0.009841919,0.0017204285,-0.008277893,0.0017967224,-0.03479004,0.017166138,-0.0021343231,0.025436401,-0.02696228,0.0335083,-0.013389587,-0.0038318634,-0.0057144165,0.013023376,0.07171631,0.0619812,-0.041778564,0.013092041,0.008972168,-0.023269653,-0.0073013306,0.00046563148,0.0008788109,0.010169983,-0.042053223,-0.03024292,-0.03060913,0.028045654,-0.0044937134,-0.0018787384,0.032348633,0.025421143,-0.009002686,0.002872467,-0.03829956,-0.03677368,0.030807495,0.0022296906,-0.013168335,-0.087402344,0.0033931732,0.012207031,-0.0058174133,0.04763794,0.005630493,-0.0045433044,-0.035980225,0.006099701,0.026245117,-0.012191772,-0.026473999,0.04748535,-0.011894226,0.017791748,0.04373169,0.02128601,0.046936035,0.016067505,0.00077199936,0.029159546,-0.0030441284,-0.005596161,0.04147339,-0.008628845,0.021316528,0.025543213,-0.004924774,-0.02519226,0.005558014,-0.022705078,-0.031066895,0.027862549,-0.05496216,0.01637268,0.0317688,-0.036590576,-0.022598267,-0.022369385,-0.013931274,0.025482178,0.12005615,0.02217102,-0.013511658,-0.05331421,-0.010803223,0.027114868,-0.0012664795,0.014266968,-0.014640808,-0.003742218,-0.027786255,0.027374268,-0.01121521,0.023773193,0.021774292,0.0023403168,-0.031219482,-0.006286621,-0.034484863,-0.010002136,0.009170532,-0.0034675598,0.0033988953,-0.003929138,0.018966675,0.028030396,-0.01763916,-0.000097453594,0.000098228455,-0.07141113,0.0038871765,-0.0058784485,0.01676941,-0.012557983,-0.005897522,-0.01828003,0.036956787,0.0009784698,-0.03201294,0.04385376,0.0151901245,-0.042755127,-0.06188965,0.028305054,0.010307312,0.02607727,-0.025115967,-0.0070724487,0.02015686,-0.024765015,0.016525269,-0.009315491,0.011306763,-0.03265381,0.015625,-0.028366089,-0.041931152,-0.024505615,-0.03869629,0.03970337,-0.012756348,-0.000055015087,0.026290894,-0.005645752,0.017501831,0.015159607,-0.000041663647,-0.027633667,-0.018005371,0.03186035,0.044708252,-0.010566711,-0.026153564,0.0017852783,-0.03765869,0.015174866,0.018218994,0.024902344,-0.008659363,0.021850586,0.015106201,-0.00055503845,0.008995056,-0.027175903,-0.000541687,-0.021438599,-0.0074043274,0.016998291,-0.00592041,0.029449463,0.029388428,-0.029907227,0.012992859,-0.012886047,0.041137695,-0.03253174,-0.007598877,0.040618896,0.047088623,-0.021636963,-0.0057754517,-0.020263672,0.011734009,0.0011053085,0.014312744,-0.016433716,-0.00013077259,-0.017532349,0.028259277,0.018676758,-0.028259277,0.009819031,-0.0070762634,0.01083374,0.010047913,-0.0026474,-0.016357422,-0.021621704,-0.042053223,-0.010688782,-0.024520874,0.0027561188,-0.008758545,-0.0031528473,0.04486084,0.04486084,0.0211792,-0.030197144,0.015731812,-0.0058021545,0.04449463,-0.023269653,0.00060224533,0.01727295,-0.006095886,0.005329132,-0.06335449,0.004055023,-0.013511658,0.025115967,0.0132369995,-0.052337646,-0.029647827,-0.013442993,0.04626465,-0.0105896,-0.023269653,-0.011634827,0.01574707,0.004310608,-0.0026187897,0.027770996,0.0052108765,-0.015312195,-0.0146865845,0.006755829,0.011383057,0.0071411133,-0.027694702,-0.018173218,0.016937256,-0.02128601,0.005317688,0.00028514862,0.012252808,-0.028381348,0.010002136,0.047698975,-0.015472412,0.041046143,-0.00970459,-0.017929077,-0.006214142,0.022155762,0.04611206,0.0024795532,0.003774643,-0.0078048706,-0.0027828217,0.0025520325,-0.00642395,0.039855957,0.041412354,0.012870789,-0.0005207062,-0.017532349,0.029830933,-0.0071792603,-0.0055503845,-0.029830933,0.013587952,-0.019973755,-0.01939392,-0.013137817,0.026184082,-0.038085938,0.0026016235,-0.027618408,-0.026168823,-0.0018882751,-0.03213501,0.017929077,0.030578613,0.0053138733,-0.009124756,-0.010482788,0.0030498505,0.038391113,-0.015670776,-0.034240723,-0.016418457,0.025863647,0.036010742,-0.034210205,-0.035705566,-0.013626099,-0.01826477,-0.003917694,-0.056884766,-0.058746338,-0.041900635,-0.011932373,-0.0043678284,0.0064201355,-0.0051994324,-0.02079773,0.023284912,-0.03189087,0.014060974,0.010124207,0.07824707,0.012664795,-0.0022506714,-0.0079193115,-0.015808105,-0.017425537,0.022262573,-0.022750854,-0.006111145,-0.029937744,-0.0036640167,0.01687622,0.027359009,0.028823853,0.0065689087,-0.050079346,-0.0062065125,-0.03768921,0.0110321045,-0.036376953,0.013946533,-0.018417358,0.031677246,-0.036376953,-0.0024967194,0.005607605,0.011184692,-0.0070495605,-0.0052452087,0.017593384,0.00021612644,0.023361206,-0.035339355,-0.031982422,-0.02810669,-0.01852417,0.009994507,0.00085639954,0.008865356,0.013885498,-0.0044517517,-0.014556885,0.018539429,0.0051498413,0.005771637,0.011505127,0.009162903,-0.030197144,0.025421143,-0.014968872,0.0025196075,-0.07940674,0.0020503998,0.031463623,0.012214661,-0.012718201,0.009315491,-0.011169434,0.0013208389,0.04748535,-0.06463623,0.00086688995,-0.025253296,0.031204224,-0.037322998,-0.0021476746,0.0014791489,-0.008666992,0.0065231323,-0.05050659,-0.0015125275,-0.0029735565,-0.0014562607,-0.057800293,-0.018966675,-0.009002686,0.0066452026,-0.0154800415,-0.015457153,-0.019851685,0.021606445,0.01259613,-0.10797119,-0.02458191,0.055480957,0.002407074,-0.001200676,0.013015747,0.017349243,0.047851562,-0.0037345886,-0.0069274902,0.022384644,-0.029342651,-0.00079488754,-0.029464722,0.02748108,-0.0116119385,0.011116028,-0.0058555603,0.0052757263,0.0121536255,-0.035736084,-0.008071899,0.004550934,0.014282227,0.006652832,0.021957397,-0.0236969,0.014518738,0.023422241,-0.017593384,0.033691406,0.0050964355,-0.010169983,-0.010154724,0.03375244,0.027526855,-0.024032593,-0.005088806,0.013832092,-0.025268555,0.03540039,-0.014709473,0.012687683,0.00028967857,-0.002292633,-0.027374268,-0.018295288,0.004852295,-0.018157959,-0.029830933,0.033172607,-0.027694702,0.013931274,0.028259277,-0.024276733,0.0061950684,0.010635376,-0.0037555695,-0.010421753,-0.032806396,0.0012083054,0.047210693,0.008132935,-0.0066184998,0.0009498596,0.015914917,0.010604858,0.0022697449,0.008583069,-0.006729126,0.009605408,0.0012226105,0.03137207,0.038360596,0.033599854,0.012588501,0.025970459,-0.020996094,0.037872314,-0.06384277,-0.013328552,0.022598267,0.009147644,-0.031311035,0.001080513,-0.0022144318,-0.023223877,0.0132751465,-0.014602661,-0.04522705,0.018478394,-0.016143799,-0.0021514893,-0.016677856,0.0056381226,-0.005607605,-0.012969971,-0.025024414,0.0024471283,-0.01234436,0.027786255,0.016281128,-0.014060974,0.012145996,0.012229919,-0.010520935,-0.017868042,-0.009246826,-0.018585205,-0.017868042,0.00969696,-0.016998291,0.00831604,0.07104492,-0.012939453,0.0076904297,0.0073928833,0.02998352,0.0007815361,0.0066375732,0.033721924,0.024887085,-0.001543045,0.014640808,-0.07489014,-0.012672424,0.039855957,0.006965637,-0.03366089,-0.031311035,-0.004108429,0.0670166,-0.00894928,-0.03149414,0.05041504,-0.0071983337,0.016281128,0.0016498566,-0.03137207,0.015914917,-0.041778564,-0.015174866,0.027069092,0.0077552795,0.013267517,0.039215088,-0.008468628,0.019241333,-0.029525757,0.0087509155,-0.031677246,0.011795044,-0.018005371,-0.014709473,0.013687134,-0.01776123,-0.026397705,0.015045166,0.00040221214,0.028640747,0.039855957,-0.0074005127,0.015029907,0.0060653687,0.028900146,-0.0055503845,-0.03265381,0.015625,-0.007980347,0.00013804436,-0.013389587,0.0098724365,0.06365967,-0.0077819824,0.03616333,-0.0037250519,0.027526855,0.0028762817,0.028625488,-0.008506775,0.019012451,-0.0037612915,0.0021877289,-0.018829346,0.04989624,-0.01210022,0.04425049,0.03463745,0.02142334,-0.0014562607,0.012214661,0.032836914,0.03677368,-0.009475708,0.018341064,-0.027023315,-0.003932953,0.0027313232,-0.027923584,0.012298584,0.02482605,0.021759033,0.03604126,0.013626099,-0.008102417,0.013473511,-0.06109619,0.009628296,0.012634277,0.06817627,-0.017181396,-0.01096344,-0.017929077,0.050201416,-0.040039062,-0.0026931763,0.0070762634,-0.019042969,-0.014427185,0.019836426,-0.0029201508,-0.016906738,-0.0015926361,-0.015403748,-0.01474762,-0.027145386,0.029342651,0.020339966,-0.011268616,-0.0024471283,0.0001039505,0.0078125,0.020431519,-0.005996704,0.003042221,0.01676941,-0.013183594,0.0011768341,0.027114868,0.015022278,0.006023407,0.03463745,-0.015670776,-0.004142761,0.01939392,0.011566162,-0.029312134,0.019683838,0.016967773,0.004306793,0.0592041,-0.0129776,0.050476074,-0.032226562,-0.011299133,0.013717651,0.03302002,0.017852783,0.013870239,0.011924744,-0.0053901672,0.008674622,0.0062294006,0.003206253,-0.0026569366,0.017501831,0.01209259,0.014015198,0.0028953552,-0.010978699,-0.023849487,-0.012680054,-0.012290955,0.0076446533,0.0056915283,0.005218506,0.047668457,-0.009773254,0.010131836,-0.008338928,-0.014129639,-0.0019702911,-0.020095825,-0.02885437,0.006362915,-0.011779785,-0.018997192,-0.0016546249,-0.024780273,0.016555786,0.005924225,-0.0008788109,0.0128479,0.028640747,0.0070762634,0.04321289,0.026107788,0.015350342,0.00831604,-0.014465332,0.014129639,0.024337769,-0.029953003,0.0051994324,-0.008171082,0.001958847,0.013053894,-0.015197754,0.017730713,-0.0020771027,-0.01374054,-0.049072266,0.0014076233,0.04776001,0.044921875,0.028198242,-0.0046310425,-0.0037708282,0.0143585205,-0.0014896393,-0.0056381226,-0.01675415,0.010169983,0.017196655,-0.024246216,0.0206604,0.026367188,-0.0012207031,0.021438599,0.01234436,0.022827148,-0.035064697,-0.01625061,0.004135132,-0.01701355,-0.025772095,-0.011695862,0.042999268,-0.021835327,-0.04864502,0.010360718,0.008628845,-0.0262146,-0.0030555725,0.041015625,0.026168823,0.025802612,0.0211792,0.008171082,-0.008033752,0.05419922,-0.007843018,0.028335571,0.0066833496,-0.0234375,0.03817749,-0.005493164,0.02243042,0.0064964294,0.015808105,-0.04272461,0.008483887,0.013847351,-0.0071144104,0.024124146,-0.00021183491,-0.004722595,0.023529053,0.0023555756,-0.004299164,0.009895325,0.0026779175,0.000685215,-0.017089844,-0.007663727,0.016586304,0.015380859,0.021606445,0.03744507,-0.008125305,-0.010360718,-0.00050115585,-0.022888184,0.0074653625,-0.0066452026,-0.044708252,-0.009025574,0.009017944,-0.011871338,-0.022888184,-0.03540039,0.004573822,0.017120361,-0.025619507,-0.009391785,0.019104004,0.045806885,-0.003982544,0.010345459,0.031951904,0.01171875,-0.014801025,0.020095825,0.0029850006,0.031066895,-0.008140564,0.0050354004,0.026473999,0.02810669,0.02911377,-0.0046195984,-0.0031909943,-0.018615723,-0.012237549,0.010803223,-0.010856628,0.035339355,0.009880066,-0.0048561096,0.04360962,0.0056533813,-0.006542206,0.0006136894,-0.01574707,0.0043144226,0.009010315,0.03842163,0.0077934265,-0.003944397,0.059295654,-0.041107178,0.023666382,0.035003662,0.014320374,-0.043273926,0.025527954,0.012931824,0.022644043,-0.022598267,0.01838684,0.010688782,-0.031707764,0.04650879,0.0012197495,-0.015235901,-0.00029563904,-0.024612427,-0.017608643,0.0077400208,0.004058838,0.007972717,-0.01675415,0.019134521,0.010368347,-0.013008118,0.009796143,0.018539429,0.00630188,0.014411926,0.022766113,0.020950317,-0.019332886,-0.0023117065,0.029266357,0.014877319,0.030578613,0.018417358,0.032806396,-0.030380249,0.01109314,-0.009254456,0.018707275,0.0017728806,-0.0032806396,-0.010986328,0.009773254,0.051574707,-0.0151901245,-0.0054244995,0.022476196,0.029205322,0.030273438,0.012962341,-0.021209717,-0.0010318756,0.01600647,-0.027954102,-0.005882263,0.0496521,0.0002065897,-0.012458801,0.018585205,-0.019592285,-0.02357483,0.031097412,0.0032539368,0.00045323372,-0.059051514,-0.016067505,0.02267456,0.015029907,0.0056915283,-0.0011920929,-0.021835327,-0.016479492,0.0025100708,0.010543823,-0.04248047,-0.016326904,0.014183044,-0.026443481,-0.019882202,-0.0088272095,-0.005542755,-0.006526947,0.010574341,-0.025650024,0.032348633,-0.006465912,-0.00089263916,-0.0072784424,-0.0012397766,-0.010948181,0.011642456,0.005130768,0.017822266,0.008544922,0.0005226135,-0.048736572,-0.01966858,-0.020309448,-0.047943115,0.023452759,0.042816162,0.0019683838,-0.002878189,0.016815186,0.0045814514,0.016281128,-0.01574707,-0.012680054,-0.019470215,-0.02923584,0.018920898,0.022735596,-0.002149582,-0.025924683,0.033233643,-0.033477783,-0.02003479,-0.007282257,0.01725769,0.014968872,0.0413208,-0.0025577545,-0.009292603,-0.023590088,-0.0138549805,-0.007572174,-0.017303467,0.0143966675,0.027893066,0.020706177,0.01020813,0.03451538,-0.008613586,0.0023765564,0.023513794,0.011268616,-0.0045166016,0.007926941,0.008331299,0.0129470825,-0.012794495,-0.00020265579,0.064208984,0.024414062,0.0071792603,0.011680603,0.015945435,0.025527954,-0.003648758,-0.0060691833,0.00920105,0.015640259,-0.012557983,-0.0056114197,-0.032348633,-0.008239746,-0.019638062,-0.008834839,0.0015459061,0.0046691895,-0.0007677078,-0.01763916,0.006286621,0.032958984,0.012680054,-0.02810669,0.0029201508,-0.00097084045,0.015655518,-0.029388428,0.0031433105,-0.041015625,-0.037109375,-0.0018415451,-0.0031547546,0.015350342,0.009750366,-0.0066375732,-0.03012085,-0.010139465,-0.018005371,-0.011253357,-0.024856567,0.023330688,0.00623703,0.04119873,0.04220581,-0.0045394897,0.026504517,-0.009796143,-0.009925842,0.010108948,-0.022491455,0.019515991,-0.031036377,0.014167786,0.007980347,-0.017318726,0.0063171387,-0.018936157,0.006225586,-0.025558472,0.011627197,0.0033035278,0.018478394,0.011184692,0.00011110306,-0.0066337585,-0.00655365,-0.017822266,-0.02279663,-0.012184143,0.00504303,0.03387451,-0.03527832,0.023376465,-0.02355957,-0.023239136,0.004005432,-0.0032215118,0.010238647,0.014060974,0.0003273487,0.018417358,0.00440979,-0.020004272,-0.0104904175,-0.03616333,-0.007270813,-0.013717651,-0.023330688,0.008743286,0.0103302,-0.00969696,0.033111572,0.017227173,0.027511597,0.0022029877,0.006832123,-0.01235199,-0.020095825,0.01953125,0.014183044,-0.012207031,-0.0034484863,0.010536194,0.0057640076,-0.008331299,-0.032348633,-0.0066375732,-0.019836426,0.026687622,0.005756378,0.015342712,0.023529053,-0.0069084167,-0.035858154,0.025100708,-0.0055351257,0.00844574,-0.024291992,-0.013114929,0.025863647,-0.008453369,0.005115509,-0.036834717,-0.013366699,0.024551392,0.053253174,-0.0061454773,-0.006023407,0.005683899,0.040161133,0.00598526,-0.020965576,0.020553589,-0.010169983,-0.019744873,0.032684326,0.003818512,0.019561768,-0.019821167,0.022445679,0.026626587,-0.0060195923,0.0028858185,0.022094727,0.0031547546,-0.006263733,0.0017404556,-0.0073661804,0.028198242,0.023666382,-0.008666992,0.028717041,-0.024871826,-0.03366089,0.03463745,-0.017196655,-0.013679504,-0.03857422,0.0079422,-0.000562191,-0.034301758,-0.03567505,-0.00046253204],"createdAt":"2026-04-18T18:30:43.612Z","updatedAt":"2026-04-23T04:00:34.816Z","lastSeenAt":"2026-04-23T04:00:34.816Z","tsv":"'/api':151 '/docs':150 '/pricing':152 '/readme':154 '0x4899bff1664675ffe4b2546d626b41d86f0bdb07':43 '100':111 '2':103 '2.79':117 '402':171 '402 payment protocol token' '405':165 '83':124 'Base chain token buy' 'Clanker token purchase' 'FLASH token buy' 'USDC to FLASH' 'action':76,81 'address':209 'agent':35 'allow':34 'amount':8,21,49 'api':141 'averag':114 'base':13,26,59,87 'base-network' 'buy':1,14 'chain':137 'challeng':172 'clanker':56,84,131 'clanker-launch':83 'clanker-token' 'consid':200 'contract':42,208 'crawl':108 'creat':54 'custom':6,19,47 'custom-usdc-amount' 'detail':206 'document':142,188 'enabl':30 'endpoint':31,62,177,197 'exist':148 'expect':170 'experiment':201 'flash':2,15,40,50 'flash.x420.dev':33 'formal':140 'given':184 'independ':210 'indic':175 'lack':186 'latenc':115 'launch':85 'link':128 'low':193 'may':174 'method':181 'network':60 'number':100 'on-chain':135 'openapi':143 'page':127,147,159 'paramet':183 'part':64 'path':155 'payabl':73 'payment':11,24 'placehold':158 'platform':68 'price':146 'probe':162 'process':97 'provid':70 'puff':80 'purchas':39,75 'rate':113 'rather':167 'refer':77 'request':180 'requir':178 'return':157,163 'schema':144,189 'score':122 'second':118 'servic':95 'site':90 'small':99 'specif':179 'spend':45 'stat':93 'status':166 'success':112 'time':106 'token':3,16,41,53,74,86,126,205 'token-purchase' 'total':104 'transact':102,194,212 'trust':121 'usdc':7,20,48 'user':37,202 'verif':138 'verifi':204 'via':9,22,55 'volum':195 'x402':10,23,29,72,92,161 'x402 token swap' 'x402-enabled':28 'x402-payable':71 'x402-payment' 'x402scan':133 'x420 puff' 'x420.dev':67","prices":[{"id":"9840dae2-9f7b-4e04-a10c-46879b3152ac","listingId":"4e3ab5ae-54c9-4004-ac49-4dfb55586b29","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"5000000","chain":"base","payTo":"0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://flash.x420.dev/api/puff-custom","description":"Buy custom USDC amount worth of FLASH tokens 0x4899bfF1664675FFE4b2546d626b41d86f0bDb07","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"amount":{"type":"string","required":false,"description":"Optional amount in USDC (e.g., '10', '10.5', '0.5'). Defaults to 5 if not provided."}}},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"maxAmountRequired":"5000000","maxTimeoutSeconds":120}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":120},"createdAt":"2026-04-18T18:30:43.612Z"}],"sources":[{"listingId":"4e3ab5ae-54c9-4004-ac49-4dfb55586b29","source":"x402_bazaar","sourceId":"https://flash.x420.dev/api/puff-custom","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:43.612Z","lastSeenAt":"2026-04-23T04:00:34.816Z"}],"details":{"listingId":"4e3ab5ae-54c9-4004-ac49-4dfb55586b29","quickStartSnippet":"# The endpoint expects an x402 payment flow.\n# A typical request (method/body details are not documented):\ncurl -X POST https://flash.x420.dev/api/puff-custom \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"amount\": \"1.00\"}'","exampleRequest":{"amount":"1.00"},"exampleResponse":null,"schema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"amount":{"type":"string","required":false,"description":"Optional amount in USDC (e.g., '10', '10.5', '0.5'). Defaults to 5 if not provided."}}},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"FLASH token contract address is 0x4899bfF1664675FFE4b2546d626b41d86f0bDb07, created via Clanker","source_url":"https://flash.x420.dev"},{"claim":"x402 stats: 2 total transactions, 100% success rate, 2.79s avg latency, 83% trust score","source_url":"https://flash.x420.dev"},{"claim":"The /docs, /api, /pricing, and /README paths do not exist and return placeholder pages","source_url":"https://flash.x420.dev/docs"},{"claim":"x402 probe returned 405 status instead of 402","source_url":"https://flash.x420.dev/api/puff-custom"}],"useCases":["Programmatically purchasing FLASH tokens with USDC via an x402 paywall","Agent-driven token acquisition on Base network","Automating small token buys through x402-compatible wallets"],"bestFor":["Agents or bots that support x402 payment flows and want to buy Clanker-launched tokens","Developers experimenting with x402 protocol integrations on Base","Users who want a simple HTTP-based token purchase without a DEX UI"],"notFor":["Production trading or large-volume token swaps requiring liquidity guarantees","Users needing detailed API documentation or OpenAPI schemas","Anyone looking for tokens on networks other than Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:24.52Z"},"updatedAt":"2026-04-23T04:00:34.816Z"}}