{"id":"3d6e32e5-76e2-4f78-908d-ce8d113347ff","shortId":"8KX2XT","kind":"x402","title":"Pay-per-call stock quote for AMGN (Amgen) via x402 on Base, settled in USDC.","tagline":"Pay-per-call stock quote for AMGN (Amgen) via x402 on Base, settled in USDC.","description":"This endpoint provides stock data for Amgen (ticker: AMGN) through the lowpaymentfee.com platform, an x402-enabled API marketplace. The endpoint is accessed via HTTP POST and returns JSON. Payment is handled inline using the x402 protocol on the Base network, settling in USDC (contract 0x8335…2913). Each request costs $0.02 (20,000 base units of USDC with 6 decimals).\n\nThe provider, lowpaymentfee.com, offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all at a flat $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely sparse: the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of what fields the stock endpoint returns.\n\nBecause the specific response schema for the AMGN stock endpoint is undocumented, consumers should expect a JSON object with typical stock-quote fields (price, volume, change, etc.) but must verify empirically. The endpoint is confirmed live via a valid 402 challenge.","tags":[],"capabilities":["stock-quote","x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key"],"categories":["finance","data"],"synonyms":["Amgen stock price","AMGN quote","stock data API","equity price feed","x402 stock API","pay-per-request stock data"],"warnings":["No OpenAPI or schema documentation available — response format must be discovered empirically","All doc pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no technical content","The provider lists many diverse API categories (AI, analytics, finance, utilities) all at $0.02 — unclear whether all are fully implemented","No information on data source, freshness, or accuracy of stock quotes"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/AMGN","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/stocks/AMGN","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and all documentation pages are empty beyond a wallet-connect prompt. The actual data returned is unknown.","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":"2026-04-18T21:30:40.624Z","embedding":[0.009109497,-0.019104004,0.04397583,0.03286743,-0.018249512,-0.026657104,0.020217896,-0.012649536,0.06161499,-0.053710938,0.029159546,-0.039031982,-0.025482178,-0.022033691,-0.008659363,-0.008911133,-0.045318604,0.015823364,-0.038146973,0.030639648,0.015701294,0.012168884,-0.0602417,-0.014862061,-0.015205383,-0.025283813,-0.025878906,-0.025238037,-0.013122559,-0.009300232,0.08569336,-0.027648926,0.000014483929,-0.006374359,-0.02609253,0.033294678,0.0004131794,0.008880615,0.021469116,-0.034484863,-0.027923584,-0.0592041,0.022033691,0.03842163,-0.042114258,-0.041503906,-0.035949707,-0.03186035,0.010627747,0.030136108,-0.062561035,-0.015419006,-0.018798828,0.02897644,0.009857178,0.01776123,0.038879395,0.01576233,0.0129470825,0.012802124,-0.018356323,-0.081970215,0.014343262,-0.02079773,-0.021377563,0.031921387,0.0042037964,0.058410645,0.0028762817,0.030807495,-0.015792847,0.02104187,-0.018875122,0.022155762,-0.01928711,0.008865356,-0.014823914,0.012649536,0.003660202,-0.012878418,-0.0046081543,0.0036258698,-0.059783936,-0.0044441223,0.027694702,-0.029418945,-0.0045318604,0.002614975,-0.042541504,0.008346558,-0.055877686,-0.014305115,-0.014549255,0.02192688,0.0020923615,0.025283813,-0.001953125,-0.005935669,-0.002571106,0.03643799,0.018432617,-0.036590576,0.013420105,-0.008956909,0.012359619,0.020950317,0.009132385,-0.0073928833,0.02067566,0.050811768,-0.0021896362,-0.0041160583,-0.030517578,0.03778076,-0.012680054,-0.018859863,-0.043548584,0.0262146,0.0020065308,0.03414917,-0.04989624,0.017852783,0.025604248,-0.020645142,0.03817749,-0.022094727,-0.030441284,-0.0129470825,-0.026565552,-0.043182373,0.012161255,0.008354187,-0.013145447,-0.0058517456,-0.036834717,0.0028743744,-0.01197052,-0.021942139,-0.042510986,-0.0048217773,0.017105103,-0.010749817,0.009521484,-0.0039367676,-0.072143555,0.0011396408,-0.022109985,-0.020217896,-0.052520752,0.000667572,-0.013908386,0.007724762,-0.0158844,-0.041290283,0.01751709,0.033081055,-0.016174316,0.0149002075,-0.016815186,0.043121338,-0.029815674,0.06137085,-0.0036754608,-0.008972168,-0.035369873,0.09655762,-0.04699707,-0.08459473,-0.05722046,-0.01109314,0.021377563,-0.012367249,-0.0054130554,-0.020019531,-0.022918701,-0.06365967,-0.002937317,-0.0005631447,-0.04537964,-0.031463623,-0.024429321,-0.038330078,0.017196655,-0.0060577393,-0.04248047,0.0066604614,-0.028259277,0.08074951,0.03125,0.015945435,0.053222656,-0.015563965,0.05697632,0.023162842,-0.05014038,-0.003780365,0.04031372,-0.047698975,-0.010108948,-0.05001831,0.056396484,-0.04824829,0.043273926,0.019714355,-0.032287598,-0.0026168823,-0.035461426,-0.045776367,-0.008415222,-0.033111572,0.048553467,0.011741638,0.009048462,-0.0072135925,-0.024887085,-0.011421204,-0.057922363,0.029693604,-0.0019664764,0.043273926,-0.013343811,-0.0030097961,-0.007911682,0.018814087,-0.044189453,0.017654419,0.007865906,-0.02508545,0.030899048,-0.04699707,0.031051636,0.034606934,-0.010429382,-0.010818481,-0.015823364,0.01335907,-0.0026798248,0.004322052,-0.010696411,0.006713867,-0.016326904,-0.030578613,0.017105103,0.023849487,-0.0042037964,-0.008781433,-0.020614624,-0.105041504,0.045318604,0.033813477,-0.010559082,0.04324341,0.03643799,-0.031982422,-0.0075416565,-0.018585205,-0.0022659302,0.039916992,0.016662598,-0.020858765,-0.0012292862,0.032287598,-0.036102295,-0.008796692,-0.026046753,0.012374878,0.0061302185,-0.0049057007,-0.05154419,0.038238525,0.005680084,0.003484726,0.057159424,-0.011657715,-0.037109375,-0.015304565,-0.026412964,-0.011329651,-0.015609741,-0.01158905,0.0036354065,0.022232056,0.00031256676,-0.00047564507,-0.007282257,-0.02696228,0.007171631,-0.0070610046,0.014221191,-0.03326416,-0.020126343,0.013809204,0.024337769,-0.036254883,0.019638062,-0.008628845,0.029937744,-0.016677856,0.026046753,-0.0055389404,-0.013198853,0.04824829,0.0040130615,-0.038513184,0.026885986,0.039276123,-0.04458618,0.04473877,-0.00856781,-0.0022735596,-0.004070282,0.06744385,0.06390381,-0.030517578,0.019561768,0.006931305,0.0062294006,-0.052734375,-0.033569336,-0.030410767,0.027694702,-0.0040740967,0.0054512024,-0.023834229,0.005027771,-0.04888916,0.03503418,-0.018676758,0.002752304,-0.0041999817,0.010551453,-0.016403198,0.014465332,-0.019805908,0.03353882,0.037719727,-0.022598267,0.0021362305,0.041748047,0.0050964355,0.021057129,0.004840851,-0.002696991,-0.06011963,0.035827637,-0.0362854,-0.0063323975,0.052978516,0.04421997,0.009536743,-0.037353516,0.04058838,0.02885437,0.018127441,0.023773193,-0.03274536,0.011062622,-0.042114258,0.00011253357,-0.012176514,-0.062561035,0.032073975,0.03253174,-0.016067505,0.03451538,0.01007843,-0.04901123,-0.048583984,0.02633667,-0.07080078,0.025497437,0.041748047,0.000008523464,-0.004966736,-0.047027588,0.018554688,0.02192688,0.03564453,0.019958496,0.020202637,0.05215454,-0.0039138794,0.018325806,-0.01890564,-0.007083893,0.03137207,0.003446579,-0.004173279,-0.043884277,-0.0033302307,-0.005142212,-0.035247803,-0.03274536,-0.06414795,0.012008667,0.047424316,0.08087158,0.0042762756,0.017364502,0.032409668,-0.018936157,-0.01448822,-0.04425049,-0.029846191,0.00030851364,-0.022277832,0.031402588,0.032592773,0.029418945,-0.023010254,0.03488159,0.0050201416,0.02168274,-0.027496338,0.011657715,-0.032287598,0.012489319,0.014183044,0.021362305,0.042419434,0.042633057,-0.04824829,0.070373535,0.01675415,-0.0657959,0.016311646,0.01020813,-0.0068244934,-0.009437561,-0.015792847,-0.0065841675,0.009307861,-0.041931152,-0.01725769,0.012329102,0.018249512,0.021850586,0.007461548,0.0036716461,-0.0014839172,-0.027679443,-0.008216858,-0.04260254,-0.038635254,-0.09991455,0.008987427,0.0031967163,0.01272583,0.0017023087,-0.028198242,-0.008895874,-0.035369873,0.047546387,0.012039185,-0.024536133,0.0039138794,0.018920898,0.021102905,0.02053833,0.03253174,0.02520752,-0.024505615,0.042785645,0.05947876,0.008979797,-0.041229248,-0.0793457,0.010498047,-0.016052246,0.04058838,0.010978699,-0.03161621,-0.02331543,-0.010276794,-0.04663086,0.0070495605,-0.014007568,-0.057037354,0.010520935,0.008758545,-0.005279541,0.0029792786,-0.04727173,0.020843506,-0.004333496,0.038116455,0.011169434,-0.000446558,-0.017837524,0.029083252,0.04159546,-0.010353088,0.021743774,-0.012779236,-0.008766174,-0.007709503,-0.028518677,-0.055358887,-0.015731812,0.009124756,-0.036071777,-0.050750732,-0.0209198,0.023757935,0.027572632,0.022918701,0.03704834,0.025726318,-0.035125732,0.028518677,-0.014945984,0.057617188,0.026290894,-0.027053833,-0.053527832,0.023864746,0.018615723,0.053375244,-0.022079468,-0.004398346,-0.00642395,0.027679443,-0.003829956,0.029937744,-0.00969696,-0.021362305,-0.048431396,-0.041656494,0.025558472,-0.04107666,0.03579712,0.005744934,-0.022201538,-0.0011129379,-0.03945923,-0.011299133,0.0068740845,-0.015342712,-0.0103302,-0.04055786,-0.020889282,-0.049346924,-0.0085372925,-0.014129639,0.012702942,-0.021057129,0.019134521,-0.008201599,-0.0028438568,0.016448975,0.029800415,0.0057868958,0.021087646,0.009277344,0.005634308,0.012565613,-0.0056915283,-0.022781372,0.022583008,-0.006500244,-0.0051574707,-0.036071777,0.005279541,0.0066947937,0.0062065125,-0.012283325,0.00058317184,0.00023138523,-0.055389404,0.011428833,0.018035889,0.016403198,-0.022827148,-0.043121338,0.0033798218,0.02305603,-0.040527344,-0.0017709732,0.002254486,-0.009086609,-0.025161743,0.012969971,-0.002937317,0.008888245,-0.023635864,0.04812622,-0.01739502,0.03540039,0.022537231,0.014427185,0.019058228,-0.01436615,-0.025756836,0.01247406,-0.008277893,0.0017528534,-0.003484726,0.003194809,0.026641846,0.010276794,0.024658203,0.0084991455,-0.04812622,0.025054932,-0.018966675,-0.003211975,0.0046539307,0.011787415,0.03289795,0.012863159,0.018829346,0.0061454773,-0.0036811829,-0.00009012222,-0.0009636879,-0.0030765533,-0.020004272,-0.017669678,-0.0018062592,0.03012085,0.028060913,-0.033111572,-0.018218994,0.024383545,0.028533936,-0.024673462,0.0149002075,0.0033550262,0.020935059,0.018936157,0.0018749237,0.025894165,0.013938904,0.011749268,-0.004009247,-0.051879883,0.00069999695,-0.040222168,-0.01663208,-0.050750732,-0.00037312508,0.0046691895,0.019302368,-0.036071777,0.009437561,-0.004219055,-0.008682251,-0.01852417,-0.021575928,-0.0073242188,-0.0067214966,-0.015914917,0.01727295,-0.0076293945,0.013885498,-0.0231781,-0.055114746,-0.036987305,0.0012073517,0.043029785,-0.04547119,0.0048294067,-0.0049591064,0.00894928,-0.007461548,0.014579773,0.002729416,0.032592773,-0.00491333,0.016601562,-0.026885986,0.028762817,0.00059890747,0.006591797,0.007987976,-0.023925781,0.0047683716,-0.040618896,0.020080566,0.043304443,0.005836487,0.012687683,-0.02684021,-0.039367676,0.006591797,-0.026046753,0.036468506,0.053131104,0.03488159,0.0021152496,0.012451172,-0.010536194,0.019302368,-0.022232056,0.0061149597,-0.0116119385,-0.0028648376,0.017044067,-0.013580322,-0.008056641,-0.0077438354,-0.027160645,0.0050201416,-0.03933716,-0.057617188,0.0062561035,0.0019760132,-0.0019111633,0.0054397583,-0.025360107,-0.013839722,-0.015060425,-0.018295288,0.015670776,0.01676941,0.008201599,-0.0010709763,-0.022598267,-0.004432678,-0.002544403,0.015838623,0.059936523,0.011665344,0.0143585205,-0.045196533,-0.013122559,-0.024291992,0.003967285,-0.024887085,-0.0051994324,0.007259369,-0.046142578,-0.053619385,-0.025604248,0.016021729,0.017852783,-0.0124435425,0.015609741,-0.022033691,-0.02079773,-0.003276825,0.006843567,0.012428284,-0.017745972,-0.009590149,-0.0024719238,0.01927185,0.013290405,-0.0038719177,-0.0037403107,0.011009216,0.008628845,0.0075416565,0.01890564,0.02456665,-0.006439209,-0.008262634,-0.0036849976,0.034820557,0.0064735413,0.00010186434,-0.004760742,-0.018997192,0.046569824,-0.03161621,-0.0037651062,-0.00026082993,0.04333496,0.0541687,0.03237915,-0.016921997,-0.02796936,0.0022182465,0.017974854,0.007270813,-0.038208008,-0.010665894,-0.032470703,0.024917603,-0.029846191,0.028381348,0.039855957,0.016830444,0.006286621,-0.0038318634,-0.005924225,0.01739502,0.009490967,-0.07946777,-0.020904541,-0.043518066,0.00856781,-0.015853882,-0.013084412,0.021759033,0.03665161,0.020858765,-0.056121826,0.026885986,0.018630981,-0.028121948,0.024719238,0.01802063,-0.021377563,0.027374268,0.024887085,-0.0025997162,0.004863739,-0.027893066,-0.033416748,-0.007896423,0.0065612793,0.0053596497,-0.030258179,-0.028457642,-0.02507019,0.024627686,0.03479004,-0.015029907,-0.01701355,0.0013723373,0.0016832352,0.01725769,0.0015544891,0.015701294,0.052246094,-0.043548584,0.01550293,0.048339844,0.009025574,0.029373169,0.01965332,-0.0009150505,-0.02658081,-0.008293152,-0.020736694,0.03491211,0.03338623,-0.014022827,0.022247314,0.012329102,-0.015403748,-0.0002565384,-0.030639648,0.012908936,0.0034217834,-0.007331848,0.004261017,0.0135650635,-0.023162842,0.0010938644,-0.016723633,-0.015586853,-0.027252197,0.035949707,0.0068206787,-0.025375366,-0.03970337,-0.0077552795,0.011558533,0.015029907,-0.021087646,0.019805908,0.0362854,-0.003276825,0.00217247,-0.0019512177,-0.012718201,0.045715332,-0.025283813,0.031585693,0.026000977,0.012878418,-0.008346558,0.0005636215,-0.01838684,-0.03515625,-0.0065994263,-0.013000488,-0.026565552,-0.01084137,-0.04196167,-0.017227173,-0.021316528,-0.008590698,-0.019714355,-0.018356323,0.0051193237,-0.04559326,0.015914917,0.0181427,0.040283203,-0.026535034,0.011138916,0.01713562,0.0052337646,-0.019714355,0.043792725,-0.026000977,0.0014667511,-0.0061035156,0.0056991577,0.0007967949,-0.032409668,-0.02494812,-0.00066137314,0.0056610107,0.010429382,-0.008674622,0.030044556,0.014503479,-0.03479004,0.0011692047,0.0068206787,0.03753662,-0.022018433,0.021652222,0.012268066,-0.027236938,-0.0040664673,0.021255493,-0.038085938,-0.00856781,-0.003194809,0.023971558,-0.018356323,-0.01209259,-0.039093018,0.01689148,0.008483887,0.010787964,0.025177002,0.017593384,0.040618896,0.020599365,-0.026000977,-0.008880615,-0.026260376,-0.018569946,-0.0021591187,-0.014320374,-0.006549835,-0.021224976,-0.025924683,0.030288696,-0.010467529,0.01574707,0.024398804,-0.004447937,0.012557983,-0.043182373,-0.022216797,0.031402588,-0.022018433,0.009399414,-0.012504578,0.04916382,0.017745972,0.006652832,0.033416748,0.011100769,0.0030212402,-0.007221222,-0.034088135,0.008956909,-0.02973938,0.03125,0.010169983,0.033721924,0.04449463,-0.014266968,0.013679504,0.014823914,0.050872803,0.005367279,0.017715454,0.004245758,-0.022827148,0.0012321472,0.018096924,0.01008606,0.066467285,-0.022476196,-0.0128479,0.020309448,0.0496521,-0.006008148,-0.00021541119,0.068237305,0.017196655,-0.006011963,0.04663086,-0.025177002,-0.009712219,0.03152466,-0.003080368,0.025894165,0.0077323914,0.061706543,0.012619019,-0.005443573,0.021194458,0.017608643,-0.022583008,-0.029571533,-0.008361816,0.007423401,-0.018035889,-0.026611328,-0.023117065,0.0044555664,-0.0022640228,-0.018096924,-0.00081539154,-0.005329132,-0.0040779114,-0.036834717,-0.027328491,-0.005809784,-0.0017175674,0.021377563,0.016326904,-0.0071792603,-0.022232056,0.03515625,-0.00022041798,0.04763794,0.012313843,0.01940918,-0.0032806396,-0.022415161,0.012290955,0.006919861,-0.013519287,-0.032409668,0.009544373,0.008483887,0.047058105,0.04196167,-0.022842407,-0.0054473877,0.005504608,-0.0109939575,-0.008598328,0.036987305,0.018676758,0.024307251,0.029403687,-0.007209778,0.059143066,-0.031799316,0.008895874,0.015808105,0.0060195923,-0.00048208237,-0.0028800964,-0.015655518,-0.042877197,0.01789856,-0.027404785,0.008735657,0.02305603,-0.012283325,-0.00006169081,-0.021514893,0.017745972,0.017318726,-0.00004053116,-0.0065841675,-0.0140686035,0.014190674,0.028442383,0.008232117,0.027282715,0.010192871,0.002822876,0.004650116,-0.042419434,-0.0026283264,0.0010223389,-0.033813477,-0.020736694,-0.008422852,-0.005630493,-0.015319824,0.022735596,0.010719299,0.016616821,0.032470703,-0.032714844,0.01713562,0.0055389404,0.017959595,0.012290955,-0.015350342,0.0128479,0.00093746185,0.025650024,0.043792725,0.0006670952,0.0040397644,0.0050315857,-0.008674622,-0.0014600754,-0.03326416,-0.024398804,-0.013069153,-0.005897522,0.019134521,0.0015125275,0.037994385,0.039215088,0.047454834,-0.02029419,-0.008773804,0.00907135,0.05569458,-0.02079773,-0.02420044,0.021957397,0.015731812,-0.009384155,0.012649536,0.008796692,0.0057373047,0.043426514,-0.007385254,0.012245178,0.0016584396,0.0033073425,-0.008087158,-0.00010114908,0.028289795,0.0023612976,0.016494751,-0.024139404,-0.02331543,-0.012969971,-0.022735596,-0.026138306,0.0019311905,0.0062179565,0.018661499,0.030441284,0.002286911,0.027374268,-0.0018253326,0.05178833,0.0028247833,0.04232788,0.00026869774,-0.014808655,0.025436401,0.015701294,0.006664276,0.022979736,-0.0025691986,-0.024658203,0.0016584396,0.029571533,0.007259369,-0.003894806,-0.019454956,-0.02709961,-0.0070343018,0.017929077,0.0018358231,0.015258789,0.0010194778,0.018295288,0.016403198,0.004032135,-0.004043579,0.0234375,-0.0011873245,0.019104004,-0.024932861,0.02104187,-0.0069236755,0.001698494,0.030410767,-0.018859863,-0.028518677,-0.0011987686,-0.013046265,0.0026798248,0.016082764,-0.026733398,0.009162903,-0.006679535,-0.04788208,-0.008728027,-0.027648926,0.029724121,-0.02482605,-0.007713318,0.0016679764,-0.01309967,0.007369995,0.015419006,-0.028213501,0.025405884,-0.012054443,-0.011161804,0.031555176,0.02748108,0.0017538071,0.003227234,-0.00630188,-0.00554657,-0.02003479,0.0028934479,-0.039123535,0.015670776,0.0019760132,0.00756073,-0.009391785,0.00032806396,-0.012687683,0.044006348,0.002248764,0.008270264,-0.009475708,0.004501343,-0.027877808,0.0016412735,0.025436401,-0.018295288,-0.0014162064,0.032989502,0.020477295,-0.054351807,-0.0021190643,-0.012802124,0.026657104,0.01322937,-0.010818481,0.0039138794,-0.0033950806,0.014282227,0.018920898,-0.0016508102,0.012825012,-0.027130127,0.015640259,0.021194458,0.021820068,0.019851685,0.04144287,0.0019330978,-0.023239136,-0.018981934,0.016357422,-0.021484375,0.0006570816,0.023025513,0.007858276,-0.009925842,0.00040578842,0.008331299,-0.020477295,0.022735596,-0.0151901245,0.010848999,0.0107040405,-0.012359619,-0.029159546,-0.02168274,0.016448975,-0.0362854,-0.0056648254,0.012840271,0.0024814606,0.03729248,-0.0006942749,-0.0021743774,0.046661377,0.0020217896,0.012481689,0.05807495,0.009880066,0.017196655,0.020568848,-0.0037403107,-0.031463623,0.029525757,0.04043579,-0.022140503,-0.0002412796,-0.02394104,-0.049438477,0.029937744,0.02658081,-0.0045204163,-0.0009703636,-0.017532349,-0.013839722,-0.025558472,-0.016418457,-0.023239136,-0.008575439,-0.0007786751,-0.033691406,-0.02633667,-0.03881836,-0.004634857,0.008956909,0.014266968,-0.019927979,-0.048858643,-0.03326416,-0.012046814,0.012039185,-0.013923645,0.006954193,-0.0075531006,0.024536133,-0.013870239,0.0018024445,0.007293701,0.004447937,0.022247314,-0.030883789,0.021026611,-0.01725769,-0.042114258,-0.049804688,0.026046753,-0.025299072,0.016281128,-0.009147644,0.024627686,0.013084412,0.0039711,-0.00071907043,-0.0024337769,-0.012245178,0.010261536,-0.021697998,-0.009300232,0.016571045,0.010719299,-0.025650024,-0.016693115,0.0093307495,-0.014923096,-0.0046310425,0.008834839,0.046875,0.0088272095,0.02029419,0.0057144165,0.023788452,-0.007858276,-0.018173218,-0.0033397675,-0.005958557,0.020431519,-0.011619568,0.00050735474,0.03765869,0.010917664,-0.066223145,-0.01675415,0.01272583,0.029724121,-0.0025405884,0.041137695,0.025405884,0.010025024,-0.024978638,-0.04598999,-0.003545761,0.042236328,-0.0025367737,0.028686523,0.010108948,-0.012886047,-0.018218994,0.0005197525,0.017333984,-0.03274536,-0.033355713,0.002046585,-0.049072266,0.03918457,-0.0069999695,-0.010307312,-0.012786865,0.0060043335,-0.010810852,-0.021713257,-0.025238037,0.021865845,-0.008651733,0.003742218,-0.026245117,0.048858643,0.005302429,0.00017106533,-0.00053167343,-0.03302002,-0.012825012,0.0039405823,0.011734009,0.00655365,0.00034976006,-0.019317627,-0.0009651184,-0.00522995,-0.00869751,-0.016143799,0.026565552,-0.026733398,0.014045715,0.029846191,0.005432129,-0.013145447,0.030166626,-0.037017822,0.02079773,-0.0023403168,0.0022945404,-0.0031108856,-0.038909912,0.02267456,0.005264282,-0.016021729,0.046569824,-0.022766113,-0.0017337799,-0.017623901,0.0021190643,-0.013999939,-0.012863159,-0.0024261475,-0.022720337,-0.009109497,-0.012741089,-0.04058838,-0.016159058,-0.038726807,0.0104522705,0.024734497,-0.0070228577,0.029968262,-0.015548706,-0.016113281,0.014541626,0.01322937,-0.009559631,0.02079773,0.0009031296,0.007545471,0.032104492,-0.0008687973,-0.0049591064,-0.001115799,-0.008979797,-0.014450073,-0.013061523,0.022003174,0.010650635,-0.0052261353,0.061553955,0.003835678,0.018066406,0.024337769,0.022918701,-0.0010032654,-0.008705139,0.03894043,0.031829834,-0.01109314,-0.015129089,-0.008323669,-0.015419006,0.0065307617,-0.026931763,-0.015731812,0.0021362305,0.009086609,-0.0021953583,0.003993988,-0.013168335,0.015060425,-0.024871826,-0.010070801,-0.017715454,-0.022018433,-0.044281006,-0.0006251335,0.016540527,0.0009737015,0.02760315,-0.0025463104,0.0036010742,-0.0033397675,0.012718201,-0.012863159,0.016342163,-0.0051956177,0.0034255981,0.0039901733,0.026977539,0.03567505,-0.014259338,-0.0017900467,-0.0037117004,0.013839722,0.018325806,-0.01751709,0.02079773,0.0070343018,0.038360596,-0.0058250427,0.024017334,-0.02029419,0.005077362,0.020248413,-0.007789612,0.034118652,0.03665161,-0.028762817,0.054107666,0.010475159,-0.03286743,0.070373535,-0.0048217773,-0.0027160645,-0.0029125214,0.022476196,-0.025817871,-0.009483337,0.008270264,-0.0025482178],"createdAt":"2026-04-18T18:34:44.911Z","updatedAt":"2026-04-23T20:01:32.978Z","lastSeenAt":"2026-04-23T20:01:32.978Z","tsv":"'/api':143 '/docs':141 '/pricing':142 '/readme':145 '0.02':83,120 '000':85 '0x8335':78 '20':84 '2913':79 '402':218 '6':91 'AMGN quote' 'Amgen stock price' 'access':55,134 'advertis':125 'ai/ml':109 'amgen':9,25,39 'amgn':8,24,41,185 'analyt':108 'api':50,105,127 'base':13,29,72,86 'base-network' 'broad':98 'call':4,20,104 'catalog':99 'challeng':219 'chang':204 'confirm':213 'connect':151 'consum':190 'contract':77 'cost':82 'crypto':112 'data':37,107 'decim':92 'descript':170 'detail':158 'document':136 'empir':209 'enabl':49 'endpoint':34,53,176,187,211 'equity price feed' 'etc':205 'exampl':165 'expect':192 'extrem':138 'field':173,201 'financ':111 'flat':119 'handl':64 'howev':135 'http':57 'infer':110 'inlin':65 'instant':133 'json':61,194 'key':128 'limit':131 'live':214 'lowpaymentfee.com':44,95 'marketplac':51 'must':207 'network':73 'no-api-key' 'object':195 'offer':96 'openapi':162 'page':146 'pay':2,18,102 'pay-per-cal':1,17,101 'pay-per-call' 'pay-per-request stock data' 'payload':167 'payment':62 'per':3,19,103,121 'platform':45,124 'post':58 'price':202 'prompt':153 'protocol':69 'provid':35,94 'quot':6,22,200 'rate':130 'render':148 'request':81,122 'request/response':166 'respons':181 'return':60,177 'schema':182 'servic':115 'settl':14,30,74 'span':106 'spars':139 'spec':163 'specif':180 'stock':5,21,36,175,186,199 'stock data API' 'stock-quot':198 'stock-quote' 'technic':157 'ticker':40 'typic':197 'undocu':189 'unit':87 'usdc':16,32,76,89 'usdc-settlement' 'use':66 'util':114 'valid':217 'verifi':208 'via':10,26,56,215 'volum':203 'wallet':152 'x402':11,27,48,68 'x402 stock API' 'x402-enabled':47 'x402-payment'","prices":[{"id":"43d84aa1-cec8-4c16-83c7-dfebf94e30f0","listingId":"3d6e32e5-76e2-4f78-908d-ce8d113347ff","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/stocks/AMGN","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:44.911Z"}],"sources":[{"listingId":"3d6e32e5-76e2-4f78-908d-ce8d113347ff","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/AMGN","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:44.911Z","lastSeenAt":"2026-04-23T20:01:32.978Z"}],"details":{"listingId":"3d6e32e5-76e2-4f78-908d-ce8d113347ff","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/AMGN \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns HTTP 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/stocks/AMGN"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/AMGN"}],"useCases":["Fetching real-time or recent stock data for Amgen (AMGN) in automated trading or analytics pipelines","Agent-driven portfolio monitoring that pays per call without managing API keys","Integrating stock quotes into AI agent workflows using x402 micropayments"],"bestFor":["AI agents or bots that need keyless, on-demand stock data","Developers prototyping financial apps who want zero-signup API access","Micropayment-native workflows on the Base L2 network"],"notFor":["High-frequency trading requiring sub-millisecond latency and guaranteed SLAs","Users who need comprehensive historical OHLCV data with documented schemas","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:17:43.835Z"},"updatedAt":"2026-04-23T20:01:32.978Z"}}