{"id":"d643a3c7-adb9-44e8-95ff-24d262b694a9","shortId":"v9gDsm","kind":"x402","title":"Mortgage data API endpoint on Base, paid per-request via x402 with USDC.","tagline":"Mortgage data API endpoint on Base, paid per-request via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/36`. It is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint `/api/v1/mortgages/36` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises flat $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and no minimum commitments required.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what the mortgages endpoint actually returns. The endpoint name suggests mortgage financial data (possibly rates, terms, or calculations), but the exact input parameters and response structure are unknown. The resource ID \"36\" in the path may refer to a specific mortgage product, term length (e.g., 36 months), or data record, but this is purely speculative without documentation.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","mortgage-data","per-request-pricing","json-response","post-method"],"categories":["finance"],"synonyms":["mortgage API","mortgage rates","mortgage data","home loan API","mortgage calculator","lowpaymentfee","x402 mortgage","USDC mortgage endpoint"],"warnings":["No documentation available — docs, pricing, and API pages all show only 'Connect wallet'","No OpenAPI or request/response schema provided","The exact purpose and data returned by /api/v1/mortgages/36 is unknown","The mortgages endpoint is not listed on the provider's own homepage among available APIs, raising questions about its status"],"endpointUrl":"https://lowpaymentfee.com/api/v1/mortgages/36","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/mortgages/36","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing, but there is zero documentation on request parameters, response schema, or what 'mortgages/36' actually provides. No OpenAPI spec, no examples, and all doc pages are empty beyond a wallet connect prompt. The listing is effectively a stub.","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":"2026-04-19T05:46:22.695Z","embedding":[-0.045196533,0.02746582,0.05227661,0.047546387,0.0067710876,0.00019943714,-0.0018615723,0.014976501,0.04586792,-0.058898926,0.013893127,-0.07946777,-0.049713135,-0.03753662,-0.037719727,0.020980835,0.010803223,0.016799927,-0.047332764,0.03164673,0.053009033,-0.040771484,-0.035247803,-0.0028190613,-0.0068206787,0.01360321,-0.03186035,-0.026382446,-0.0016222,-0.021057129,0.010040283,-0.016967773,-0.0048294067,0.012283325,0.010437012,0.025863647,-0.017868042,0.030075073,0.018112183,-0.025131226,-0.005519867,-0.031173706,0.004463196,-0.013542175,-0.06011963,-0.0013542175,-0.0051345825,-0.037322998,0.011360168,0.004764557,-0.017089844,-0.009513855,-0.016159058,0.019851685,0.027252197,-0.026031494,0.025787354,-0.022628784,0.016433716,0.0076522827,0.01374054,-0.080200195,-0.017440796,-0.024246216,0.013008118,0.03387451,-0.021408081,0.07952881,0.0064735413,0.078552246,0.02243042,0.034240723,0.037078857,0.029251099,0.021530151,-0.030075073,-0.017990112,0.039154053,-0.050811768,-0.021240234,-0.014541626,-0.021560669,-0.040374756,-0.036346436,-0.00038456917,-0.041229248,0.003288269,0.027786255,-0.056762695,0.043029785,-0.088012695,-0.0038776398,-0.016952515,-0.014450073,0.019958496,-0.019042969,-0.037872314,0.013114929,0.0065574646,0.012931824,0.0129776,-0.01979065,0.026931763,-0.016723633,0.053710938,-0.0028934479,0.03326416,0.02180481,-0.0032234192,-0.013656616,-0.02330017,0.0013113022,0.006439209,-0.016860962,0.014892578,0.033172607,-0.047821045,0.015327454,-0.026992798,0.007156372,-0.042388916,0.03955078,0.033843994,0.01940918,0.047332764,0.0027256012,0.010185242,0.022827148,-0.040863037,-0.0047073364,0.02583313,-0.006969452,-0.006095886,-0.0135650635,-0.014137268,0.02696228,-0.009819031,-0.0027313232,-0.047821045,0.011650085,0.041748047,-0.027755737,0.04055786,0.03112793,-0.07080078,0.0069389343,-0.03314209,0.028182983,-0.025054932,-0.041992188,0.014762878,0.015289307,-0.015716553,-0.014762878,0.0057411194,-0.040771484,0.003168106,0.020248413,-0.019851685,0.050567627,-0.014251709,0.021865845,0.06402588,0.0029640198,0.027526855,0.036376953,0.005176544,-0.080444336,-0.06124878,-0.033355713,-0.0060653687,-0.019515991,-0.022979736,-0.027435303,-0.019363403,-0.013442993,-0.020309448,-0.025512695,0.021087646,-0.052978516,-0.003932953,-0.044433594,-0.0010156631,-0.0033397675,-0.019882202,-0.04244995,-0.05014038,0.076416016,0.011413574,0.045715332,0.025817871,-0.020248413,0.023406982,0.018798828,0.020614624,-0.024490356,0.014923096,-0.03741455,0.032714844,-0.013442993,0.019348145,-0.031585693,0.04812622,0.03665161,0.009010315,-0.0070877075,-0.01739502,-0.03225708,-0.05606079,-0.017303467,0.020339966,0.024276733,0.014785767,0.03112793,-0.015388489,-0.03012085,0.000045835972,-0.008491516,0.022720337,0.055725098,0.038970947,0.00052547455,0.02507019,0.012535095,-0.047424316,0.031097412,0.006225586,0.008430481,-0.0035858154,-0.032226562,0.044677734,0.020355225,-0.03475952,-0.016357422,0.003484726,0.021316528,-0.016616821,0.0040016174,-0.010353088,-0.0036849976,-0.028533936,-0.034698486,-0.019683838,0.019638062,-0.015136719,-0.0076675415,-0.03881836,-0.10058594,0.058654785,0.041503906,0.038116455,-0.023788452,0.00459671,-0.010528564,-0.02822876,-0.056121826,0.014152527,0.09954834,-0.005821228,-0.02267456,0.02041626,0.01737976,-0.042663574,-0.013114929,-0.022399902,-0.019363403,-0.03062439,0.0014133453,-0.0236969,-0.012626648,0.0072898865,0.012954712,0.045928955,-0.008918762,-0.048919678,0.0075683594,-0.018539429,0.007675171,-0.038513184,0.0035171509,0.034454346,-0.009735107,0.059753418,0.007762909,-0.0020179749,0.019973755,0.007232666,0.014961243,-0.010047913,-0.011405945,-0.035888672,0.025360107,0.014854431,-0.05355835,0.007865906,-0.0052604675,0.037078857,-0.046936035,0.051635742,-0.0006337166,0.026931763,0.0418396,-0.00030612946,-0.043884277,0.008033752,0.017471313,0.030731201,0.030654907,0.023986816,-0.0095825195,-0.03250122,0.051330566,-0.027862549,-0.0020618439,0.017501831,0.018859863,0.03640747,-0.011871338,-0.019073486,-0.059143066,-0.01763916,-0.03741455,0.021865845,-0.039001465,-0.0035381317,-0.012634277,-0.010375977,-0.010185242,-0.029830933,-0.026565552,0.023025513,-0.02053833,0.018920898,-0.049346924,-0.021652222,0.020507812,0.02267456,-0.013702393,-0.00057697296,0.027954102,0.020004272,-0.01033783,-0.0149002075,-0.0070648193,-0.025619507,-0.02835083,0.01373291,-0.00365448,0.0012617111,0.008605957,-0.04714966,0.0070381165,0.032989502,0.009162903,0.020309448,0.029006958,0.007675171,-0.033599854,-0.044403076,-0.034057617,-0.024887085,0.00096559525,-0.0066604614,0.025421143,0.058624268,-0.00919342,0.014961243,-0.01260376,0.027053833,-0.057769775,-0.016738892,0.033050537,-0.05831909,-0.010253906,0.0044898987,0.0059928894,-0.013557434,0.02420044,0.039764404,0.009399414,0.08282471,0.021392822,-0.031921387,-0.0005965233,0.03125,0.025421143,0.010177612,0.009933472,-0.008842468,-0.030578613,0.02748108,-0.026138306,-0.0020999908,-0.056549072,0.049835205,0.016281128,0.074645996,0.015304565,0.01777649,0.020111084,-0.03277588,-0.020507812,-0.036071777,-0.016921997,-0.0423584,-0.024902344,0.03375244,-0.019821167,0.0065231323,-0.02810669,0.022750854,-0.008125305,0.014778137,-0.023361206,0.024002075,0.008605957,0.0002477169,0.014656067,0.012130737,0.02583313,0.032836914,-0.040863037,0.012916565,0.0006284714,-0.026565552,0.036132812,0.032348633,-0.010231018,-0.036499023,-0.04321289,-0.029083252,-0.0041542053,-0.00894928,-0.03643799,-0.01927185,0.009742737,0.017974854,0.038635254,-0.017944336,-0.0075263977,0.010246277,-0.017318726,-0.06921387,-0.018310547,-0.057403564,0.0057678223,0.03591919,-0.020584106,-0.02067566,0.001250267,-0.0051460266,-0.01171875,0.013343811,0.017089844,0.01625061,-0.035858154,0.022415161,-0.00730896,0.009811401,0.01322937,0.032073975,0.0138168335,0.02532959,-0.019439697,0.022659302,-0.022750854,-0.032287598,0.042663574,-0.0715332,-0.006011963,0.034698486,-0.024169922,0.005596161,0.024505615,-0.03479004,-0.02268982,0.004463196,-0.038848877,0.037872314,0.03668213,-0.050811768,-0.03149414,-0.066223145,0.0043754578,-0.026779175,0.08691406,0.0140686035,0.0062789917,-0.02407837,0.022506714,0.045318604,-0.0051612854,0.0053215027,-0.01322937,-0.010025024,-0.008476257,-0.021820068,-0.032958984,-0.008216858,0.056365967,0.017532349,-0.008850098,0.028060913,0.0087509155,-0.008453369,0.023834229,-0.015464783,0.018341064,-0.055419922,0.04638672,-0.019989014,0.052825928,0.01638794,-0.015914917,-0.04272461,0.051483154,-0.008270264,0.037963867,-0.033203125,-0.0032424927,-0.002565384,0.018112183,0.008407593,-0.01461792,-0.019348145,-0.0152282715,-0.031097412,-0.06567383,0.0390625,-0.010444641,0.023254395,0.045043945,0.026763916,0.044433594,-0.013755798,0.010650635,0.0064888,-0.03074646,-0.013092041,-0.026611328,-0.028411865,-0.020431519,0.007545471,-0.024047852,-0.0017614365,0.0141067505,0.034423828,0.0009832382,-0.013084412,-0.0011110306,0.042144775,0.009536743,0.03640747,0.013366699,0.033935547,0.0574646,0.01777649,-0.050567627,0.033966064,-0.0118255615,0.006061554,-0.0010509491,0.026763916,0.03768921,-0.026565552,0.0034637451,-0.003211975,-0.005962372,-0.041503906,-0.007785797,-0.0006656647,0.017227173,-0.0035037994,-0.021774292,0.0137786865,0.017227173,-0.021514893,-0.019454956,0.027389526,-0.0001270771,-0.017562866,0.022033691,0.018722534,0.023864746,-0.017288208,0.008094788,0.018249512,0.05355835,0.013008118,-0.01550293,0.0036811829,0.009880066,-0.0041160583,0.0016012192,0.02180481,-0.01574707,0.030975342,-0.008598328,-0.005340576,0.00067281723,-0.0026721954,-0.029129028,0.015327454,0.011764526,-0.013389587,-0.00617218,0.0001527071,0.008575439,0.011482239,0.0010175705,-0.005382538,0.01663208,-0.024139404,-0.00793457,0.0028209686,0.045196533,-0.0030441284,0.012161255,0.027282715,-0.01285553,0.011726379,-0.035003662,0.014961243,0.021072388,0.029510498,-0.030929565,-0.061340332,-0.026290894,-0.026168823,0.028274536,-0.002790451,0.01448822,0.042175293,-0.005962372,0.012435913,0.06726074,-0.003484726,-0.0012454987,-0.028930664,-0.04046631,-0.015312195,0.003282547,0.005809784,-0.023757935,0.0051460266,-0.024139404,-0.028503418,0.01033783,-0.047546387,-0.0095825195,0.020370483,-0.0023517609,0.011543274,-0.010047913,0.014755249,-0.015655518,-0.05090332,-0.0046310425,0.026504517,0.033294678,-0.04168701,0.020843506,-0.020462036,0.000095427036,-0.023406982,0.04611206,0.025421143,0.01322937,0.005466461,0.031463623,-0.024383545,0.021057129,-0.012557983,0.01272583,-0.0126571655,-0.018997192,0.013916016,-0.028381348,-0.008415222,0.024093628,-0.020233154,-0.016021729,-0.015823364,-0.05697632,-0.011817932,-0.026290894,0.029754639,0.017044067,0.03878784,-0.023620605,0.016204834,0.022491455,-0.0077171326,-0.0017175674,-0.0018424988,-0.017730713,-0.0053138733,0.03060913,0.014678955,-0.0021324158,-0.02230835,-0.0017414093,-0.018325806,-0.05218506,-0.0066223145,-0.020614624,0.0016212463,-0.0019798279,-0.0012769699,-0.042053223,0.0011806488,-0.0030918121,-0.03274536,0.007949829,0.01612854,0.018920898,0.00021767616,-0.012916565,0.012184143,0.017868042,-0.0072631836,0.010887146,0.015487671,-0.023803711,-0.008140564,0.013542175,-0.0016412735,0.025909424,-0.00005376339,-0.039886475,-0.008796692,-0.00806427,-0.06036377,-0.013595581,0.01374054,-0.008651733,-0.007865906,-0.00712204,-0.061645508,-0.0027484894,-0.036193848,-0.010681152,-0.009269714,0.01852417,0.027954102,0.0026226044,0.030548096,-0.011245728,-0.026062012,-0.02268982,0.027038574,0.00919342,0.010322571,0.024551392,0.013069153,-0.014701843,-0.0066337585,0.0011348724,-0.0064353943,-0.018936157,-0.004714966,0.00793457,0.002796173,-0.003238678,-0.0006990433,-0.008865356,-0.04107666,0.0035037994,0.08532715,-0.019134521,0.0067596436,-0.008102417,-0.027008057,0.007331848,0.039764404,-0.04244995,0.011940002,-0.00819397,0.00051498413,-0.015701294,0.03427124,0.0052871704,0.028884888,-0.037078857,-0.04309082,0.016677856,0.0053367615,-0.013015747,-0.06210327,-0.04019165,-0.05142212,0.006038666,0.00090265274,-0.031173706,0.0049552917,0.024612427,-0.029403687,-0.05407715,-0.010917664,0.030303955,0.0022945404,0.024276733,0.005908966,0.008918762,0.022109985,0.011650085,-0.010177612,0.020126343,-0.004432678,-0.010131836,-0.021118164,0.0345459,-0.0104904175,-0.032318115,0.014030457,0.013114929,0.029403687,-0.00014019012,0.025146484,-0.014823914,0.008377075,-0.004043579,0.0135650635,-0.018920898,-0.00004929304,0.05871582,-0.041015625,0.016036987,0.016586304,0.0073280334,0.008018494,0.016098022,0.012535095,-0.040283203,0.0014696121,0.0104599,0.018478394,0.04562378,-0.02418518,0.03451538,0.015899658,0.002981186,0.009300232,-0.0051994324,-0.0141067505,-0.040649414,-0.033203125,0.0073928833,0.015541077,0.009941101,-0.010520935,0.012390137,-0.0057792664,-0.017486572,-0.0032978058,-0.029083252,-0.0057411194,-0.0030670166,0.011581421,-0.017196655,-0.0025119781,-0.021652222,0.03451538,0.023330688,0.04058838,0.0057525635,-0.020431519,-0.006919861,0.025497437,0.001581192,0.00064468384,0.024017334,0.016662598,0.01084137,0.021881104,0.03289795,-0.027557373,-0.0046539307,-0.034973145,-0.0022964478,0.01864624,-0.006175995,0.0059318542,-0.009384155,-0.016418457,0.011558533,-0.038269043,0.00023829937,-0.040405273,-0.022903442,-0.0009775162,-0.00022637844,0.010345459,-0.007259369,-0.0045394897,0.011787415,-0.023513794,0.023071289,0.011138916,-0.02130127,0.024002075,0.03164673,-0.01675415,-0.03451538,-0.002866745,-0.0047035217,0.011001587,0.007331848,-0.03237915,0.0357666,0.054626465,0.022079468,0.005970001,0.006252289,0.03390503,0.00044226646,0.00059223175,-0.01083374,0.03060913,-0.009689331,0.02217102,-0.034851074,0.03149414,0.034118652,0.00724411,-0.012001038,-0.004886627,-0.004886627,0.05368042,-0.0078125,-0.002483368,0.024765015,-0.020217896,0.024475098,-0.0015802383,0.014190674,-0.004497528,-0.014549255,-0.026031494,0.023757935,-0.0076942444,-0.0041885376,0.008377075,-0.026306152,0.032226562,-0.027786255,-0.009246826,0.022979736,0.005065918,-0.016036987,-0.02520752,-0.0010814667,-0.021057129,-0.04522705,-0.018341064,0.0011005402,0.029647827,0.009536743,0.025238037,-0.0004916191,-0.0127334595,0.035308838,0.0039787292,-0.011177063,-0.009773254,-0.020080566,0.051483154,-0.026367188,0.0680542,0.03643799,-0.00078105927,0.0657959,0.03186035,0.038146973,-0.017868042,0.040924072,-0.017562866,0.036224365,-0.050964355,-0.0009174347,0.014251709,0.035369873,-0.020950317,0.003572464,-0.0038928986,0.037475586,-0.032409668,0.024398804,0.05581665,0.032318115,0.013053894,0.023468018,-0.005584717,-0.015945435,-0.019210815,-0.0152282715,0.04360962,0.009895325,0.029312134,0.0076446533,-0.000016629696,0.010185242,0.011039734,-0.016845703,-0.027114868,0.06536865,0.064453125,-0.033050537,-0.014717102,-0.019958496,-0.0038528442,-0.025421143,-0.005809784,0.012611389,0.012237549,0.022583008,-0.026412964,-0.008071899,-0.01335907,0.0034389496,0.026489258,0.01626587,-0.02406311,0.02720642,0.0065460205,0.018447876,0.030929565,-0.01373291,0.004470825,-0.017745972,-0.02897644,0.03012085,0.03668213,-0.02545166,-0.0008010864,0.013404846,-0.005874634,0.033325195,0.03286743,-0.03692627,-0.006626129,0.017105103,0.020736694,0.008178711,0.035491943,0.017410278,0.012779236,0.038116455,0.040740967,0.030151367,-0.01411438,0.014350891,-0.0074386597,0.006263733,-0.0115356445,0.025009155,0.02458191,-0.004245758,0.014518738,-0.024032593,0.0046081543,0.015586853,0.015930176,-0.009468079,0.0014505386,-0.013420105,0.04522705,-0.016830444,0.0077705383,-0.0013942719,-0.006664276,0.003232956,0.009628296,0.015701294,-0.009468079,0.03213501,0.016693115,-0.017623901,-0.011581421,0.048217773,-0.03744507,0.021118164,-0.0013408661,-0.017227173,-0.02822876,0.020980835,0.008583069,0.017700195,-0.00026798248,-0.004589081,-0.017303467,0.00055646896,0.013252258,0.0030918121,-0.0011806488,-0.021759033,-0.008728027,-0.0057907104,0.03552246,0.011764526,-0.007949829,-0.0037822723,0.0019664764,0.0040893555,-0.0038166046,-0.0262146,-0.009765625,0.025009155,-0.038970947,0.035583496,0.036468506,0.0021648407,0.016067505,-0.0104904175,-0.0057411194,0.0058670044,0.0039100647,0.026855469,0.014389038,-0.02861023,0.01763916,-0.013519287,0.039978027,0.03439331,0.0025157928,0.028137207,0.009727478,-0.016830444,0.013305664,0.007282257,0.015838623,0.0059432983,-0.01020813,0.015129089,0.025131226,-0.040649414,-0.03668213,-0.012298584,-0.016662598,-0.023025513,-0.009490967,0.01360321,-0.0067329407,0.02999878,0.041046143,0.019454956,-0.03616333,0.061401367,-0.003709793,0.03933716,-0.005836487,-0.0016956329,0.040863037,0.013183594,0.033935547,-0.0008940697,0.004535675,-0.04147339,-0.0052452087,0.01953125,0.031677246,0.01348114,0.012527466,0.007663727,0.03753662,-0.0026893616,0.044433594,0.012916565,0.005012512,0.031280518,0.0015277863,-0.032989502,-0.008514404,-0.011421204,0.016677856,0.04837036,-0.007713318,-0.01550293,-0.011657715,-0.01638794,0.017303467,-0.005947113,0.019470215,0.0093688965,-0.027313232,0.017486572,-0.03744507,0.00087213516,-0.004962921,0.017837524,-0.07159424,-0.0262146,0.00843811,0.016952515,-0.02696228,0.036254883,0.03567505,0.005180359,0.00422287,0.04333496,-0.00031781197,0.056610107,-0.0090789795,0.017501831,0.04486084,-0.006778717,-0.022155762,0.012504578,0.034240723,-0.04232788,0.010604858,0.028182983,-0.017150879,0.011795044,0.001789093,0.007095337,-0.012809753,0.004184723,-0.0047302246,0.0063552856,0.013053894,-0.003610611,0.006526947,0.029434204,-0.0011062622,0.008422852,0.004890442,-0.020431519,0.027435303,0.04159546,0.015411377,-0.032684326,-0.0047683716,-0.00081062317,-0.024475098,-0.016693115,-0.008758545,0.0038871765,-0.033447266,-0.0019168854,0.018585205,0.015541077,0.009399414,-0.0059394836,-0.010414124,0.019805908,0.014190674,0.019058228,-0.00039815903,-0.013328552,0.033996582,-0.024154663,-0.01928711,-0.017654419,-0.011871338,0.021270752,0.03050232,-0.01096344,-0.0357666,0.022094727,-0.008132935,0.023864746,0.026489258,-0.000600338,0.008003235,-0.011665344,-0.018325806,-0.0054244995,0.02848816,-0.01586914,-0.03704834,-0.03479004,0.018356323,0.033416748,-0.000975132,-0.012069702,0.0124053955,0.021636963,0.015960693,0.033050537,0.0023231506,0.035217285,0.01878357,-0.016571045,-0.02293396,-0.0006799698,-0.024932861,-0.022750854,0.021438599,-0.016326904,-0.027755737,0.02142334,0.014091492,-0.0048179626,-0.006427765,-0.012367249,-0.0031337738,-0.029449463,0.022918701,-0.026138306,0.007911682,-0.022857666,0.0014667511,0.018188477,0.008956909,-0.024856567,-0.010421753,0.025756836,-0.019073486,-0.05621338,0.008094788,-0.0057296753,0.0005636215,-0.018814087,-0.005004883,0.0016880035,0.0087890625,-0.004840851,-0.0076828003,0.0031166077,0.046875,-0.011985779,-0.0071640015,-0.0005879402,-0.018295288,-0.01902771,-0.01247406,-0.0035915375,-0.011657715,0.03665161,0.01171875,0.0024089813,0.024398804,-0.017471313,0.001572609,-0.001996994,-0.011375427,-0.0034542084,-0.031677246,-0.019622803,0.015312195,0.009689331,-0.0052223206,0.009567261,0.016174316,-0.010848999,-0.013420105,0.036987305,0.044830322,0.026565552,0.030380249,0.0033893585,0.013389587,-0.027862549,0.021621704,-0.0061798096,0.028259277,-0.0008511543,-0.014266968,-0.0008673668,0.008773804,-0.00045752525,0.012298584,-0.009651184,0.024307251,0.023284912,0.023849487,0.021087646,0.0104904175,-0.011390686,-0.024841309,-0.022399902,0.014663696,0.043395996,-0.004764557,0.016708374,0.03100586,-0.0021629333,-0.025543213,-0.0099487305,0.009651184,-0.0011739731,-0.048339844,0.00044035912,-0.016937256,0.028686523,0.0013532639,0.015060425,-0.002735138,0.0054740906,0.02508545,-0.038513184,-0.024810791,0.03427124,0.017318726,-0.006149292,-0.0021381378,-0.0052452087,0.0013027191,0.009094238,0.0058517456,-0.028335571,-0.019454956,-0.006134033,-0.007926941,0.029449463,0.0024814606,-0.012329102,-0.0076522827,0.0075950623,-0.0007662773,-0.014541626,-0.0036907196,-0.009094238,-0.03250122,-0.009056091,0.023330688,-0.013114929,-0.01083374,-0.0033988953,-0.0019779205,-0.0056152344,-0.027557373,0.023727417,-0.025665283,0.027557373,-0.005596161,-0.035583496,0.032684326,-0.01751709,0.027191162,-0.013900757,-0.031707764,0.0012750626,0.0017547607,0.018829346,-0.005168915,-0.012641907,0.009727478,-0.01158905,-0.014564514,0.0053482056,0.0030403137,-0.000018298626,-0.019119263,0.050231934,-0.0048942566,-0.030929565,0.015510559,-0.008621216,-0.0038166046,0.0021476746,0.020477295,-0.013282776,0.011238098,-0.010482788,-0.012336731,-0.014305115,-0.03564453,0.004295349,-0.015525818,0.012367249,0.018188477,0.0068092346,0.042663574,0.010810852,0.04373169,0.019302368,-0.0016088486,0.038360596,0.03677368,0.022277832,0.00806427,-0.012481689,-0.012298584,-0.0026607513,-0.00073337555,-0.015129089,-0.0009274483,-0.025619507,-0.04055786,0.021255493,-0.01927185,0.014480591,-0.00014936924,0.014007568,-0.025665283,0.029281616,-0.020828247,-0.029281616,-0.032226562,-0.00049352646,0.032409668,0.0034236908,0.015052795,-0.0066223145,-0.025665283,0.02998352,0.06060791,0.013557434,-0.02848816,-0.018859863,0.028213501,-0.0042533875,-0.004058838,0.0074882507,-0.027908325,-0.011886597,0.004886627,-0.018753052,0.023406982,-0.006385803,0.028411865,0.012306213,-0.018569946,-0.007205963,0.033294678,-0.006801605,0.006996155,0.0039711,-0.010620117,0.04046631,0.03366089,-0.0006427765,0.024337769,0.02104187,-0.059814453,0.025787354,-0.0006351471,0.03250122,0.0021190643,-0.021850586,-0.04837036,-0.010391235,-0.006565094,-0.009506226],"createdAt":"2026-04-18T18:48:14.862Z","updatedAt":"2026-04-29T05:34:22.194Z","lastSeenAt":"2026-04-29T05:34:22.194Z","tsv":"'/api/v1/mortgages/36':43,92 '/request':131 '0.02':119,130 '000':108 '0x8335':113 '20':107 '2913':114 '36':213,227 '6':124 'USDC mortgage endpoint' 'accept':93 'access':34 'across':133 'actual':186 'advertis':102,128 'ai/ml':65 'analyt':64 'api':3,17,61,139,157 'base':6,20,87,109,116 'base-network' 'broader':49 'calcul':199 'challeng':101 'commit':147 'connect':163 'content':169 'cost':105 'crypto':68 'data':2,16,39,63,194,230 'decim':125 'descript':180 'doc':154 'document':149,238 'e.g':226 'endpoint':4,18,30,73,91,136,185,189 'equal':118 'exact':202 'exampl':177 'extrem':151 'financ':67 'financi':193 'flat':129 'home loan API' 'id':212 'infer':66 'input':203 'json':98 'json-response' 'key':140 'length':225 'limit':143 'lowpaymentfee' 'lowpaymentfee.com':32,51 'maximum':104 'may':217 'minimum':146 'month':228 'mortgag':1,15,37,184,192,222 'mortgage API' 'mortgage calculator' 'mortgage data' 'mortgage rates' 'mortgage-data' 'mortgage-rel':36 'name':190 'network':88 'offer':53 'openapi':173 'page':158 'paid':7,21 'paramet':204 'part':46 'path':42,216 'pay':58 'pay-per-request':57 'payment':80 'per':9,23,59,120 'per-request':8,22 'per-request-pricing' 'platform':50,76,127 'possibl':195 'post':94 'post-method' 'price':132,155 'product':223 'prompt':165 'protocol':81 'provid':33 'pure':235 'rate':142,196 'record':231 'refer':218 'relat':38 'render':160 'request':10,24,60,95,121 'request/response':176 'requir':148 'resourc':211 'respons':206 'return':97,187 'schema':174 'servic':71 'settl':82 'span':62 'spars':152 'specif':90,221 'specul':236 'structur':207 'suggest':191 'term':197,224 'unit':110 'unknown':209 'usdc':14,28,84,112,122 'usdc-settlement' 'use':77,123 'util':70 'varieti':55 'via':11,25 'wallet':164 'without':237 'x402':12,26,79,100 'x402 mortgage' 'x402-payment'","prices":[{"id":"88d8bd56-7300-4f3c-97e9-b372f85a9986","listingId":"d643a3c7-adb9-44e8-95ff-24d262b694a9","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/mortgages/36","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:48:14.862Z"}],"sources":[{"listingId":"d643a3c7-adb9-44e8-95ff-24d262b694a9","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/mortgages/36","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:14.862Z","lastSeenAt":"2026-04-29T05:34:22.194Z"}],"details":{"listingId":"d643a3c7-adb9-44e8-95ff-24d262b694a9","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/mortgages/36 \\\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":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/mortgages/36"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/mortgages/36"}],"useCases":["Retrieving mortgage-related financial data programmatically","Integrating mortgage information into fintech applications","Agent-driven mortgage data lookups with micropayments"],"bestFor":["Developers needing on-demand mortgage data without API key management","AI agents that can settle x402 payments in USDC on Base","Applications requiring pay-per-use financial data with no subscription"],"notFor":["Users who need detailed documentation or schema before integrating","High-volume consumers who would prefer bulk or subscription pricing","Anyone needing non-mortgage financial data (though the platform offers other endpoints)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:13.24Z"},"updatedAt":"2026-04-29T05:34:22.194Z"}}