{"id":"e2d1f541-8254-41ff-8527-531441231cee","shortId":"XJmU9g","kind":"x402","title":"Stock market quote for REGN via x402 micropayment on Base, $0.02 per request.","tagline":"Stock market quote for REGN via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides a stock market quote for the ticker symbol REGN (Regeneron Pharmaceuticals) through an x402-enabled pay-per-call API hosted at lowpaymentfee.com. The endpoint accepts POST requests and returns JSON data. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a cost of $0.02 per request (20,000 base units with 6 decimals).\n\nThe provider, lowpaymentfee.com, operates a broad catalog of x402 endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced uniformly at $0.02 per call. The specific endpoint `/api/v1/market/quote/REGN` falls under the Finance & Web3 category and is designed to return a market quote for the REGN equity ticker. No API keys or rate limits are advertised; access is gated solely by the x402 payment header.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /pricing, /api, and /README pages all returned only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of the response format. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source, response schema, and data freshness are unknown.","tags":[],"capabilities":["stock-quote","market-data","x402-payment","usdc-base","pay-per-call","no-api-key","json-response"],"categories":["finance","market-data"],"synonyms":["REGN stock price","Regeneron quote","equity market data","stock ticker API","real-time stock quote","financial data API","REGN market quote"],"warnings":["No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no technical content.","No OpenAPI or output schema provided; response format for the market quote is unknown.","Data source and freshness for REGN quotes are not disclosed.","The endpoint path suggests a single-ticker endpoint; it is unclear whether other tickers are supported via the same pattern."],"endpointUrl":"https://lowpaymentfee.com/api/v1/market/quote/REGN","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/market/quote/REGN","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 with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no example request or response, and all documentation pages are empty beyond a wallet-connect prompt. The actual data source and response format are completely unknown, making this effectively a stub listing.","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":"2026-04-18T21:39:03.030Z","embedding":[-0.010536194,0.018417358,0.024032593,0.028503418,-0.013092041,-0.011100769,0.004928589,0.013648987,0.04660034,-0.029144287,0.0107421875,-0.015098572,0.00043201447,-0.016143799,-0.03793335,-0.0075302124,-0.0063934326,-0.0033283234,-0.07885742,0.060150146,0.01739502,0.00040125847,-0.042175293,-0.03302002,-0.0051460266,-0.0073928833,0.018829346,-0.0107040405,0.0013961792,-0.016342163,0.05529785,-0.037872314,0.0132751465,0.008911133,-0.010414124,-0.00831604,0.029953003,0.015022278,0.016708374,0.0042800903,-0.009643555,-0.050079346,0.010498047,0.04083252,-0.033935547,-0.04171753,-0.047851562,-0.057800293,0.027374268,0.0034313202,-0.06793213,-0.061401367,-0.037353516,0.019241333,0.020217896,0.034484863,0.016433716,0.022064209,0.011909485,0.008514404,0.017669678,-0.041015625,-0.0038814545,0.0024375916,-0.016418457,0.020111084,-0.008216858,0.03149414,-0.008659363,0.03970337,0.041656494,-0.021484375,-0.00020217896,-0.014060974,-0.009529114,0.013328552,0.013748169,0.0052948,-0.003282547,-0.008872986,0.022857666,-0.007045746,-0.053253174,0.0036373138,0.014472961,-0.042144775,0.01260376,-0.006614685,-0.005207062,0.08087158,-0.062927246,0.003967285,-0.0067443848,-0.0024375916,-0.016326904,-0.011940002,-0.031082153,0.006893158,-0.002002716,0.035736084,0.011795044,-0.020355225,0.02003479,0.009468079,0.010353088,0.06677246,-0.025390625,0.007381439,0.00969696,0.034179688,-0.019104004,-0.0016489029,-0.0061531067,-0.005886078,0.006565094,-0.016479492,-0.059295654,0.0012521744,-0.027770996,0.07867432,-0.050323486,0.0053520203,0.011779785,-0.011581421,0.0013694763,-0.007293701,-0.042419434,0.009941101,-0.029876709,-0.021713257,0.030426025,0.02607727,0.00016272068,-0.0110321045,-0.03451538,0.0063705444,0.030944824,-0.04119873,-0.026153564,-0.028579712,-0.010421753,0.0005130768,-0.031799316,0.0037441254,-0.080444336,0.002313614,-0.021499634,0.01828003,-0.03326416,-0.0006160736,0.017593384,0.015525818,-0.020217896,-0.0031337738,0.00793457,-0.032196045,-0.02067566,0.02658081,-0.01676941,0.026855469,-0.047698975,0.09814453,0.0015506744,-0.031707764,-0.0066375732,0.0287323,-0.022399902,-0.076660156,-0.061462402,-0.0119018555,-0.00012481213,-0.032684326,-0.007156372,-0.027404785,-0.024398804,-0.032684326,-0.021148682,0.017456055,0.021224976,-0.027404785,-0.037200928,-0.038146973,0.01625061,-0.012374878,0.007774353,0.018325806,-0.048065186,0.054992676,0.019729614,-0.015350342,0.020614624,0.018218994,0.041290283,0.046783447,-0.006702423,-0.017974854,0.02279663,-0.033569336,0.011993408,-0.03100586,0.03475952,-0.006549835,0.020629883,0.040649414,-0.023162842,-0.020141602,-0.03366089,-0.06567383,-0.038848877,0.0008401871,0.046325684,0.0074424744,-0.029327393,-0.037322998,-0.02520752,-0.020599365,-0.0014724731,0.013336182,0.0062065125,0.052246094,0.012145996,0.0047912598,-0.03491211,0.027557373,-0.01247406,0.046966553,0.044403076,0.002161026,0.02330017,-0.045318604,0.029571533,0.045959473,-0.029922485,-0.00333786,-0.007320404,0.036468506,-0.01133728,-0.021438599,0.00041031837,-0.005050659,-0.013076782,0.0046463013,-0.016723633,0.022460938,0.012268066,-0.029205322,-0.031921387,-0.0960083,0.025360107,0.043792725,-0.018112183,0.027023315,0.06210327,-0.028457642,-0.002664566,-0.033111572,0.0016489029,0.044677734,-0.000114262104,-0.0035820007,0.03527832,-0.0025138855,-0.026306152,-0.025268555,0.0206604,-0.03857422,-0.009490967,-0.0012702942,-0.023742676,0.013725281,0.02760315,-0.02281189,0.021636963,-0.00033593178,-0.021087646,0.009033203,-0.010467529,-0.010818481,-0.022079468,-0.00011563301,-0.0070762634,0.0014324188,0.013801575,-0.0017185211,0.0043296814,-0.0090789795,0.032043457,-0.009140015,-0.003566742,-0.015090942,-0.012649536,0.001666069,0.030349731,-0.05215454,0.013587952,-0.04864502,0.036743164,-0.04321289,0.04925537,-0.017791748,-0.013305664,0.054748535,-0.015525818,-0.034332275,-0.021499634,0.018432617,0.0037555695,-0.00058078766,-0.029205322,-0.0076942444,-0.002319336,0.061706543,0.030319214,-0.025634766,0.018844604,0.029830933,0.02859497,-0.0073928833,-0.018951416,-0.052368164,0.03503418,-0.019714355,0.02468872,-0.018692017,0.013130188,-0.017623901,0.0046691895,-0.037139893,0.0059165955,-0.0098724365,0.015235901,-0.014289856,0.014129639,0.0022354126,0.023956299,0.024353027,-0.008781433,0.00030589104,0.015434265,0.032958984,0.037963867,-0.042999268,0.009994507,-0.05126953,0.012611389,-0.04248047,-0.014022827,0.014915466,0.03213501,0.02482605,-0.025131226,0.023910522,-0.023986816,0.0041618347,0.015792847,-0.023239136,0.044311523,-0.027130127,-0.0109939575,-0.03074646,-0.037963867,0.009765625,0.019866943,0.007637024,0.043701172,-0.012336731,-0.029418945,-0.024124146,0.022842407,-0.07116699,0.020965576,0.027374268,-0.020126343,-0.0146102905,-0.040771484,0.023361206,-0.0014572144,0.032196045,-0.004096985,-0.00084400177,0.03503418,-0.0008907318,0.026779175,0.0015916824,0.0044784546,0.0060577393,-0.000065624714,-0.008560181,-0.042510986,0.0019483566,0.016052246,-0.025344849,-0.027633667,-0.078308105,0.031433105,0.07501221,0.031921387,0.017593384,0.015014648,0.009117126,-0.023651123,-0.044921875,-0.016357422,-0.03652954,0.000022053719,-0.03363037,0.025344849,0.019302368,0.007686615,-0.020904541,0.041259766,-0.020721436,0.0138168335,-0.025253296,0.030227661,-0.0362854,0.0011291504,-0.0129776,0.014213562,0.061553955,0.027572632,-0.0793457,0.01637268,-0.009239197,-0.010131836,-0.0067634583,0.024307251,0.005748749,-0.02885437,-0.037750244,0.00081014633,-0.0009899139,-0.06085205,-0.03869629,0.029632568,0.04776001,0.04598999,0.012680054,0.011856079,0.022979736,-0.0026130676,0.0050315857,-0.06713867,-0.01474762,-0.032196045,0.00034880638,-0.0026779175,-0.018615723,-0.0046539307,-0.015525818,-0.040222168,-0.001449585,0.019973755,0.0011367798,-0.030944824,-0.021102905,0.060302734,0.017456055,-0.006259918,0.062042236,0.045440674,0.02192688,0.041259766,0.05480957,0.032409668,-0.01751709,-0.07757568,0.027557373,-0.027801514,-0.025161743,-0.032196045,-0.021575928,-0.023208618,-0.011680603,-0.0055999756,0.020935059,-0.0004079342,-0.057617188,-0.0036029816,-0.011489868,-0.021102905,0.018325806,-0.057006836,-0.011886597,-0.0345459,0.059661865,0.021896362,-0.004310608,-0.04324341,0.008529663,0.059143066,0.006038666,0.030227661,-0.013160706,-0.016220093,0.009239197,-0.0069007874,-0.03552246,-0.035858154,0.0039901733,-0.012275696,-0.018661499,-0.02760315,0.041656494,0.003944397,0.015159607,0.0041656494,0.022018433,-0.03463745,0.028747559,-0.025772095,0.0670166,-0.014663696,-0.000091433525,-0.033172607,0.028747559,-0.014541626,0.029769897,-0.06512451,-0.0048103333,0.0060157776,0.026947021,0.031463623,0.03326416,0.0024223328,0.0037822723,-0.029449463,-0.06185913,0.03366089,-0.043945312,0.03729248,0.03161621,-0.005748749,0.045288086,-0.00762558,-0.017456055,0.019104004,0.002779007,-0.0090789795,-0.01828003,-0.036834717,-0.032684326,0.005783081,-0.04425049,0.030303955,-0.023025513,0.043029785,-0.008392334,-0.010482788,0.029251099,0.06298828,0.018432617,0.0003194809,-0.0064201355,-0.0021209717,0.041503906,0.003643036,-0.010627747,0.04208374,0.0064582825,0.000011384487,0.00894165,0.0109939575,-0.009124756,-0.018692017,0.0024642944,-0.011512756,0.00005441904,-0.047973633,0.0033874512,0.039855957,0.013175964,-0.014060974,-0.00070905685,0.02230835,0.010925293,-0.033996582,-0.034484863,0.010665894,0.00944519,-0.018539429,0.020462036,0.02293396,-0.0019989014,-0.0234375,0.027572632,-0.011772156,0.020477295,0.010871887,0.013916016,0.0031394958,-0.007865906,-0.0236969,0.017974854,0.005466461,0.0181427,0.010345459,-0.0021381378,0.0058403015,0.027709961,-0.00982666,-0.018585205,-0.058563232,-0.002943039,0.021255493,0.019210815,0.018615723,-0.004096985,0.006881714,-0.00982666,-0.0034980774,0.013191223,-0.016967773,0.0012712479,-0.0073127747,0.018203735,-0.002538681,-0.026885986,0.02243042,0.03289795,-0.0026893616,-0.013702393,-0.0043563843,-0.002325058,0.013366699,-0.03213501,-0.015930176,-0.017349243,0.022750854,0.049926758,0.011070251,0.011619568,0.017593384,-0.021514893,-0.023223877,-0.008895874,-0.013023376,-0.02128601,-0.01171875,-0.060455322,0.024627686,0.01979065,0.00080013275,-0.03353882,0.006477356,-0.01247406,-0.010444641,-0.036010742,0.006214142,0.009185791,-0.013290405,-0.025222778,0.013763428,0.013923645,-0.0007777214,-0.012840271,-0.040405273,-0.0020542145,0.016525269,0.056549072,-0.031311035,0.03503418,-0.008232117,-0.015510559,-0.015914917,0.05142212,0.024276733,0.013427734,-0.00504303,0.010429382,-0.011650085,0.01776123,-0.008010864,0.010734558,-0.008201599,-0.019348145,-0.009361267,-0.041809082,0.03314209,0.03338623,0.00868988,0.0057792664,-0.017868042,-0.04067993,-0.005924225,-0.03390503,0.014625549,0.02722168,0.029754639,-0.00049066544,0.02456665,0.008659363,0.015426636,-0.021102905,-0.026306152,0.00093126297,0.018585205,0.007511139,0.0017795563,-0.05291748,0.013977051,0.005203247,-0.022247314,-0.07208252,-0.007801056,-0.0020370483,-0.0069122314,0.017105103,0.02822876,-0.026550293,-0.017028809,-0.003709793,-0.045196533,0.010757446,-0.020996094,0.001332283,0.00088119507,-0.025283813,0.015365601,0.017364502,-0.0287323,0.035888672,0.0124053955,-0.026306152,-0.054901123,0.01474762,-0.016082764,0.022003174,-0.03378296,-0.027450562,-0.00907135,-0.036834717,-0.055267334,-0.005405426,0.006538391,0.026397705,-0.019927979,-0.015670776,-0.0037002563,-0.010307312,-0.009681702,-0.0149002075,-0.0059928894,-0.011802673,-0.0024967194,0.03479004,0.05960083,0.018829346,-0.017410278,-0.034240723,0.0022964478,0.008842468,-0.0023384094,0.011230469,0.0602417,-0.012802124,-0.030822754,-0.026428223,0.012008667,0.020263672,-0.0025806427,-0.0045394897,0.00039815903,0.030029297,0.000954628,0.012886047,-0.008529663,0.053344727,0.043426514,0.033843994,0.0021018982,-0.003490448,-0.024017334,0.009925842,0.05645752,-0.018478394,-0.007736206,-0.008598328,0.032287598,0.011741638,0.0076065063,0.031082153,0.030303955,0.003030777,-0.027755737,-0.017944336,0.013900757,-0.0017766953,-0.09454346,-0.028900146,-0.05050659,-0.0061798096,-0.029647827,-0.026031494,0.022750854,0.031311035,-0.03427124,-0.05215454,0.037750244,0.029769897,-0.008102417,0.033447266,0.022384644,0.0064086914,0.014877319,-0.013504028,-0.012031555,0.034210205,-0.014152527,-0.035186768,-0.029006958,0.02279663,0.0064201355,-0.006187439,-0.035095215,0.006389618,0.026947021,-0.008987427,0.010536194,-0.02772522,0.018447876,-0.001786232,0.021560669,-0.010276794,0.007068634,0.04815674,-0.0368042,0.03894043,0.015388489,0.026321411,0.002319336,0.032562256,-0.024856567,-0.029281616,-0.01234436,0.0005850792,0.040649414,0.07421875,-0.010276794,-0.0015554428,0.039916992,0.0015802383,0.008026123,-0.019638062,-0.0099105835,-0.007598877,-0.019348145,0.040252686,0.036956787,0.0025348663,0.0011634827,-0.02166748,0.013961792,-0.016830444,0.005821228,-0.008308411,0.007167816,-0.03717041,-0.0014810562,0.011817932,0.006252289,-0.0013122559,0.011894226,0.053497314,-0.010101318,-0.00806427,0.0015668869,-0.0027999878,0.062194824,-0.018341064,-0.005405426,-0.025512695,0.020050049,-0.0035381317,-0.0034656525,0.008895874,-0.057739258,-0.008659363,-0.034332275,-0.028320312,-0.017730713,-0.04776001,-0.021514893,-0.024917603,-0.0012083054,0.011444092,-0.0501709,-0.00028419495,-0.04711914,0.0098724365,-0.01776123,0.027297974,-0.006538391,-0.0053215027,-0.011131287,-0.0019989014,0.003168106,0.04724121,-0.0138168335,0.0022602081,0.024032593,0.012992859,0.006969452,-0.022338867,-0.006450653,-0.003917694,-0.015213013,0.006385803,-0.032104492,0.021697998,0.033966064,-0.028259277,-0.00015187263,0.032958984,0.017822266,-0.06506348,0.025161743,0.027252197,-0.015296936,0.012741089,0.020004272,-0.042144775,-0.011604309,0.012840271,0.04550171,-0.020751953,-0.0037345886,-0.062683105,-0.002193451,-0.0008611679,0.011528015,0.05230713,-0.007820129,0.035064697,0.026229858,-0.00088214874,0.0060691833,-0.01612854,-0.036743164,0.023788452,0.017791748,-0.02168274,-0.022537231,-0.034851074,0.026931763,-0.03125,0.025802612,0.036743164,0.0029354095,-0.006099701,-0.066833496,0.008300781,0.018676758,-0.03503418,-0.0041046143,-0.023223877,0.017501831,0.015113831,0.05871582,0.032196045,0.020202637,-0.014160156,-0.023086548,-0.045013428,-0.0058059692,-0.034301758,-0.009208679,0.011474609,0.036376953,0.031951904,-0.0018424988,0.018981934,0.011383057,0.059143066,-0.012268066,0.020431519,-0.013877869,0.02708435,-0.0041923523,0.0019035339,0.015159607,0.045562744,-0.02130127,0.010810852,0.025009155,0.05340576,0.01550293,-0.01637268,0.056549072,0.029922485,-0.016479492,0.03213501,0.0013198853,-0.016357422,-0.010383606,0.01651001,0.03656006,0.003768921,0.04260254,0.03640747,-0.015792847,-0.008125305,0.01713562,-0.024749756,-0.031143188,0.020980835,0.019958496,-0.013442993,-0.024398804,-0.02305603,0.010688782,0.0039634705,-0.015625,0.012145996,-0.006385803,-0.0084991455,0.0052604675,-0.0064086914,-0.019165039,0.00028967857,0.033843994,0.013824463,0.011062622,-0.0061950684,0.037231445,-0.0017576218,0.038879395,-0.0015668869,-0.00019049644,-0.03869629,-0.009216309,0.009963989,-0.0003144741,0.022949219,-0.017440796,0.019012451,-0.00008094311,0.032409668,0.024398804,-0.029571533,-0.007648468,0.002981186,-0.024154663,-0.00793457,0.039276123,0.01751709,0.040222168,0.013374329,0.022949219,0.030075073,-0.020614624,0.026306152,0.023849487,-0.0005469322,-0.024383545,0.003616333,-0.02029419,-0.019378662,0.008972168,-0.00070142746,0.0057373047,0.02607727,-0.020858765,-0.0069122314,-0.0062561035,-0.005142212,0.0017547607,-0.014228821,-0.011329651,-0.004951477,-0.008796692,0.022903442,0.0037879944,0.061187744,0.0028896332,0.017242432,0.009231567,-0.03945923,-0.0063934326,-0.000055789948,-0.026229858,-0.029800415,-0.0046653748,-0.019348145,-0.038604736,0.028320312,-0.015274048,-0.0069389343,0.0138549805,-0.022415161,-0.0054092407,-0.015541077,0.030395508,0.0073547363,0.0018920898,0.019897461,0.010917664,0.010345459,0.03579712,-0.0010166168,0.0036258698,-0.00749588,-0.0049819946,-0.000006198883,-0.016815186,0.0062332153,0.0038585663,-0.024139404,0.020706177,-0.0030059814,-0.0007958412,0.02458191,0.0362854,-0.0032730103,-0.009513855,-0.013954163,0.04812622,0.021942139,0.020980835,0.008110046,0.030654907,-0.024673462,0.017028809,-0.0052223206,0.011886597,0.023788452,0.013664246,0.009902954,0.025772095,0.0082092285,0.012718201,0.019866943,0.016021729,0.03012085,0.012718201,-0.02243042,-0.024902344,0.0032749176,-0.02583313,-0.012435913,0.00036239624,0.028396606,0.02192688,0.031829834,0.010063171,0.019546509,-0.012168884,0.06439209,0.013725281,0.037597656,0.022033691,-0.019927979,0.043945312,0.015464783,0.009857178,0.0149383545,0.013877869,-0.024169922,0.012329102,0.016067505,0.017166138,0.018692017,0.0022239685,-0.02859497,0.02897644,0.0004594326,0.023651123,0.0036125183,0.013877869,0.016311646,0.011688232,-0.01133728,0.008903503,-0.009086609,0.011169434,0.055419922,-0.017456055,0.021026611,0.020736694,-0.008865356,0.03930664,-0.0041122437,-0.0057373047,-0.011260986,-0.022644043,-0.012962341,0.0044136047,-0.018844604,0.008956909,-0.006011963,-0.029632568,-0.002286911,-0.014350891,0.008224487,0.005584717,0.012313843,0.013923645,-0.01309967,0.008514404,0.026947021,-0.010559082,0.04324341,0.008239746,0.023651123,0.028121948,0.013198853,-0.008377075,0.000854969,0.008651733,0.004638672,0.0052490234,0.033416748,-0.03729248,0.020721436,0.014091492,-0.006290436,-0.008201599,0.021347046,-0.017593384,0.03463745,-0.014572144,-0.025802612,0.0041007996,0.009674072,0.009513855,0.011306763,0.013374329,-0.021591187,-0.01386261,0.02078247,0.014701843,-0.062927246,0.018096924,-0.0038661957,0.027359009,-0.007774353,-0.0069084167,-0.028427124,-0.023712158,0.0033340454,0.0040779114,0.006164551,0.027450562,-0.0058403015,0.030197144,0.0073547363,0.03012085,0.009048462,0.016998291,0.008934021,-0.0018873215,-0.01663208,0.031799316,-0.03253174,-0.016082764,-0.0178833,0.02078247,0.009315491,-0.020095825,0.026657104,-0.013015747,-0.003929138,-0.019958496,-0.0048828125,0.0056533813,0.0082473755,-0.033111572,-0.018417358,0.017364502,-0.0209198,-0.009918213,0.00021541119,-0.011383057,0.05230713,-0.0026416779,0.027908325,-0.00374794,0.007270813,0.011550903,0.03805542,0.00957489,0.024505615,0.0038223267,-0.027496338,-0.018814087,0.051757812,0.0184021,-0.0013780594,0.011169434,-0.0037651062,-0.044891357,0.017669678,0.006793976,0.0029563904,0.008834839,-0.0087509155,-0.030532837,-0.024749756,0.014915466,-0.035736084,0.027297974,0.011169434,-0.008651733,-0.016555786,-0.052093506,-0.016998291,0.0025596619,0.014160156,-0.007133484,-0.041625977,-0.013252258,0.036834717,0.03451538,-0.033935547,0.0077438354,-0.013305664,0.025314331,-0.014801025,-0.0012292862,0.00054740906,-0.0012760162,0.026046753,-0.014503479,0.0012025833,-0.00015187263,-0.014854431,0.0023326874,-0.0025138855,-0.005306244,0.00022053719,-0.032958984,0.026229858,0.008583069,-0.010070801,-0.0034255981,0.0050468445,0.007896423,0.019851685,-0.02368164,-0.0053138733,0.052520752,0.01977539,-0.008163452,-0.0031013489,0.029052734,-0.016448975,-0.021942139,0.020095825,0.028533936,0.02645874,0.00472641,0.00044584274,0.013717651,-0.028305054,-0.010345459,-0.0037555695,-0.007843018,0.022445679,-0.03945923,-0.0018081665,0.05291748,0.020370483,-0.024398804,-0.015174866,0.016723633,0.024261475,-0.008003235,0.029129028,0.020370483,0.0039253235,-0.026382446,-0.02104187,-0.005584717,0.041503906,0.0019464493,0.02468872,-0.019851685,0.015975952,-0.030731201,-0.013725281,0.024963379,-0.0335083,-0.019454956,-0.0068893433,-0.030395508,0.002357483,-0.008506775,0.011947632,-0.00090789795,0.025375366,0.008934021,-0.033935547,-0.016036987,0.02406311,-0.0016078949,-0.017547607,0.016494751,0.028900146,-0.0024299622,-0.0045318604,-0.009033203,-0.023895264,-0.03744507,0.009223938,0.008712769,0.017837524,0.009132385,-0.013267517,-0.0010547638,0.010597229,0.0053138733,-0.006225586,0.008605957,-0.001326561,0.0036773682,0.041748047,0.017425537,0.0061035156,0.02230835,-0.029556274,0.0113220215,-0.0042152405,-0.008804321,0.01927185,-0.040283203,0.03010559,0.0010280609,0.0046920776,0.026901245,-0.021850586,0.018814087,-0.006801605,0.0041503906,-0.011993408,0.0072364807,0.0029697418,-0.023971558,-0.040283203,0.023254395,-0.03741455,-0.046691895,-0.029449463,0.020706177,0.01965332,-0.041412354,0.03768921,-0.022720337,-0.03010559,0.0069503784,0.02822876,-0.00008136034,0.0064697266,0.0044784546,0.02330017,0.020065308,0.0074386597,0.004169464,-0.014778137,-0.032836914,-0.010612488,-0.035217285,0.010765076,-0.00007402897,0.01940918,0.071777344,-0.0068588257,0.021652222,-0.0034008026,0.009819031,0.020080566,-0.0007266998,0.07086182,0.015075684,-0.023925781,-0.023544312,-0.01576233,-0.025222778,-0.0039100647,-0.016281128,-0.000013887882,-0.005908966,-0.01360321,0.008613586,0.022994995,0.000538826,0.00566864,-0.01247406,0.022628784,-0.018341064,-0.0134887695,-0.007965088,-0.017547607,0.030227661,0.009529114,0.012062073,0.037078857,-0.00043058395,0.011978149,0.046142578,-0.0072135925,-0.020111084,-0.0047569275,0.006477356,0.012901306,0.0061149597,0.0390625,0.025253296,0.008811951,0.010513306,-0.0018033981,-0.009864807,-0.008659363,-0.009567261,0.005290985,-0.005542755,-0.0036773682,0.03414917,-0.016342163,-0.017532349,0.003490448,-0.020721436,0.030578613,0.01260376,-0.025436401,0.033172607,0.024978638,-0.04827881,0.050598145,0.0026741028,-0.005531311,-0.01965332,0.0065193176,-0.060760498,0.012428284,0.0030918121,-0.0073242188],"createdAt":"2026-04-18T18:34:46.729Z","updatedAt":"2026-04-22T09:00:33.129Z","lastSeenAt":"2026-04-22T09:00:33.129Z","tsv":"'/api':166 '/api/v1/market/quote/regn':118 '/docs':164 '/pricing':165 '/readme':168 '0.02':11,24,78,112 '000':82 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':73 '20':81 '402':206 '6':86 'REGN market quote' 'REGN stock price' 'Regeneron quote' 'accept':56 'access':146 'actual':210 'addit':179 'advertis':145 'ai/ml':101 'analyt':100 'api':50,139 'base':10,23,68,83 'beyond':156 'broad':93 'call':49,114 'catalog':94 'categori':124 'challeng':207 'confirm':201 'connect':174 'contract':72 'cost':76 'crypto':104 'data':62,99,211,216 'decim':87 'descript':193 'design':127 'detail':181 'document':155 'enabl':45 'endpoint':28,55,97,117,199 'equiti':136 'equity market data' 'exampl':188 'extrem':161 'fall':119 'financ':103,122 'financial data API' 'format':197 'fresh':217 'gate':148 'header':154 'host':51 'infer':102 'json':61 'json-response' 'key':140 'land':158 'limit':143 'live':202 'lowpaymentfee.com':53,90 'market':2,15,32,131 'market-data' 'micropay':8,21 'network':69 'no-api-key' 'openapi':185 'oper':91 'page':159,169 'pay':47 'pay-per-cal':46 'pay-per-call' 'payload':190 'payment':63,153 'per':12,25,48,79,113 'pharmaceut':40 'post':57 'price':109 'prompt':176 'proper':205 'provid':29,89 'quot':3,16,33,132 'rate':142 'real-time stock quote' 'regeneron':39 'regn':5,18,38,135 'request':13,26,58,80 'request/response':189 'respons':196,213 'return':60,129,171,203 'schema':186,214 'servic':107 'settl':65 'sole':149 'sourc':212 'span':98 'spars':162 'specif':116 'stock':1,14,31 'stock ticker API' 'stock-quote' 'symbol':37 'technic':180 'ticker':36,137 'uniform':110 'unit':84 'unknown':219 'usdc':71 'usdc-base' 'use':70 'util':106 'via':6,19 'wallet':175 'web3':123 'x402':7,20,44,96,152 'x402-enabled':43 'x402-payment'","prices":[{"id":"8cd6f296-c4e0-462d-ae1c-0a40d2fb5db6","listingId":"e2d1f541-8254-41ff-8527-531441231cee","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/market/quote/REGN","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:46.729Z"}],"sources":[{"listingId":"e2d1f541-8254-41ff-8527-531441231cee","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/market/quote/REGN","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:46.729Z","lastSeenAt":"2026-04-22T09:00:33.129Z"}],"details":{"listingId":"e2d1f541-8254-41ff-8527-531441231cee","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/market/quote/REGN \\\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 a 402 challenge with x402Version 1, accepting USDC on Base network at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/market/quote/REGN"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/market/quote/REGN"},{"claim":"All endpoints priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Finance & Web3 category includes price feeds, exchange rates, token quotes, and gas estimates","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieve a current market quote for Regeneron Pharmaceuticals (REGN)","Integrate stock price data into an automated trading or research agent","Pay-per-call financial data access without API key management","Agent-driven portfolio monitoring that needs on-demand equity quotes"],"bestFor":["AI agents needing on-demand stock quotes without subscription commitments","Developers prototyping financial apps who want instant, keyless API access","Low-volume or sporadic equity data lookups at $0.02 per call"],"notFor":["High-frequency trading requiring sub-millisecond latency and guaranteed SLAs","Bulk historical market data downloads (no batch endpoint documented)","Users who need detailed response schema guarantees before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:17:05.654Z"},"updatedAt":"2026-04-22T09:00:33.129Z"}}