{"id":"f8f6bc4d-e087-4104-b6cb-12d6de45cf93","shortId":"AxEjAU","kind":"x402","title":"Mortgage data endpoint on Base, paid per-request via x402 with USDC.","tagline":"Mortgage data 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/11`. 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/11` 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). This is consistent with the platform's uniform $0.02/request pricing. The platform advertises no API keys, no rate limits, and instant access.\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what mortgage data is returned or what parameters the POST body expects. The endpoint is live (402 challenge confirmed), but without documentation the actual functionality and data schema remain unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","mortgage-data","per-request-pricing","json-response"],"categories":["finance"],"synonyms":["mortgage API","mortgage data endpoint","home loan API","lowpaymentfee mortgage","x402 mortgage","pay-per-call mortgage data"],"warnings":["No documentation available — all doc/API/pricing/README pages return only 'Connect wallet' with no content","No request body schema or response schema documented; unknown what data this endpoint actually returns","The path '/api/v1/mortgages/11' suggests a specific resource (ID 11) but no context on what that resource represents","This endpoint is not listed on the provider's homepage among their advertised APIs"],"endpointUrl":"https://lowpaymentfee.com/api/v1/mortgages/11","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/11","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 mortgage data is actually served. No OpenAPI spec, no examples, and all doc pages are empty beyond a wallet connect prompt.","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":"2026-04-19T05:47:43.670Z","embedding":[-0.030700684,0.02645874,0.05130005,0.038238525,0.0030612946,-0.00025224686,-0.009819031,0.013046265,0.046020508,-0.05822754,0.01979065,-0.070495605,-0.04272461,-0.029190063,-0.033691406,0.022140503,0.012031555,0.017456055,-0.028366089,0.03086853,0.05807495,-0.048858643,-0.028625488,-0.0011510849,-0.005004883,0.014198303,-0.03753662,-0.017837524,-0.009498596,-0.020706177,0.010269165,-0.019897461,-0.00957489,0.012138367,0.005634308,0.03152466,-0.0070228577,0.028793335,0.012077332,-0.01979065,-0.014373779,-0.04434204,0.002910614,-0.011390686,-0.05960083,-0.011878967,0.0051116943,-0.036865234,0.004966736,-0.000109136105,-0.032562256,-0.011299133,-0.0071792603,0.022537231,0.024353027,-0.030349731,0.022994995,-0.015670776,0.0047454834,0.011627197,0.013282776,-0.0680542,-0.0184021,-0.021820068,0.012489319,0.025543213,-0.019210815,0.07525635,0.009994507,0.08728027,0.021484375,0.027038574,0.027938843,0.023406982,0.01525116,-0.03314209,-0.01737976,0.046203613,-0.044799805,-0.014907837,-0.012672424,-0.020736694,-0.052490234,-0.040283203,-0.013710022,-0.038726807,-0.007083893,0.02796936,-0.05783081,0.034820557,-0.079711914,0.0099487305,-0.012435913,-0.0071983337,0.0262146,-0.019836426,-0.037963867,0.017669678,0.008842468,0.01398468,0.015701294,-0.042114258,0.016647339,-0.01826477,0.06124878,0.011756897,0.03555298,0.015335083,0.0010585785,-0.012840271,-0.026916504,-0.001168251,0.007675171,-0.022979736,0.012451172,0.028793335,-0.042999268,0.0059165955,-0.017120361,-0.0019168854,-0.041412354,0.0541687,0.021011353,0.021347046,0.039123535,0.0035114288,0.016494751,0.019622803,-0.049041748,0.0031814575,0.02128601,-0.008529663,-0.010887146,-0.004386902,-0.020706177,0.03930664,-0.025344849,-0.0067863464,-0.043823242,0.0063285828,0.03729248,-0.038238525,0.034454346,0.036376953,-0.06964111,-0.0023155212,-0.029449463,0.022750854,-0.011604309,-0.04586792,0.023468018,0.0140686035,-0.004173279,-0.016296387,0.00034809113,-0.032287598,0.003774643,0.024612427,-0.025619507,0.047302246,-0.0037937164,0.023208618,0.05834961,0.0096588135,0.014549255,0.03829956,0.013221741,-0.08673096,-0.06359863,-0.027160645,0.007003784,-0.019454956,-0.028060913,-0.019638062,-0.015487671,-0.01852417,-0.02168274,-0.023086548,0.019897461,-0.06262207,-0.00080919266,-0.04006958,0.0042877197,0.0040779114,-0.028198242,-0.04043579,-0.04324341,0.07495117,0.013183594,0.047668457,0.027145386,-0.010292053,0.027069092,0.034088135,0.012496948,-0.019088745,0.015701294,-0.027572632,0.03173828,-0.013420105,0.015274048,-0.03930664,0.04257202,0.03894043,0.020355225,-0.014709473,-0.018600464,-0.02027893,-0.0473938,-0.015396118,0.0206604,0.033691406,0.022521973,0.025680542,-0.016204834,-0.027770996,0.011772156,-0.011077881,0.014945984,0.046051025,0.035339355,0.00843811,0.01651001,0.016693115,-0.040039062,0.042022705,-0.002117157,-0.0006299019,0.0016822815,-0.030670166,0.042816162,0.02432251,-0.029846191,-0.013282776,-0.0008401871,0.021484375,-0.018493652,-0.00047659874,-0.00308609,0.0055618286,-0.023498535,-0.04486084,-0.027862549,0.014411926,-0.014556885,-0.010482788,-0.04324341,-0.09429932,0.057800293,0.037200928,0.033172607,-0.024261475,-0.0014047623,-0.008216858,-0.030776978,-0.06225586,0.026794434,0.09094238,-0.0073928833,-0.025894165,0.016723633,0.009590149,-0.041046143,-0.009887695,-0.030654907,-0.029388428,-0.04043579,-0.0079422,-0.03451538,-0.012382507,0.006023407,0.021102905,0.04699707,-0.008148193,-0.050231934,0.011932373,-0.015945435,0.01586914,-0.03225708,0.008918762,0.031951904,-0.007873535,0.0579834,0.008178711,0.0038146973,0.022323608,0.003332138,0.0067977905,0.00071144104,-0.004501343,-0.03579712,0.016860962,-0.00024914742,-0.05206299,0.005683899,0.0067596436,0.037475586,-0.054870605,0.054718018,-0.008575439,0.028564453,0.048217773,-0.0010051727,-0.050231934,0.0040740967,0.016616821,0.037994385,0.042236328,0.016174316,0.0029392242,-0.034118652,0.049835205,-0.024154663,0.0005412102,0.021881104,0.027618408,0.038604736,-0.009674072,-0.02558899,-0.061401367,-0.0066833496,-0.026367188,0.027160645,-0.027893066,-0.0018138885,-0.01398468,0.00009393692,-0.016159058,-0.02204895,-0.022872925,0.028015137,-0.022872925,0.01399231,-0.03375244,-0.02053833,0.027893066,0.020492554,-0.0023288727,0.0044174194,0.032989502,0.01713562,-0.013343811,-0.022277832,-0.009269714,-0.03817749,-0.022109985,0.006790161,-0.00021207333,0.0062065125,0.021438599,-0.051208496,0.008239746,0.036712646,0.008171082,0.0151901245,0.023132324,0.0017843246,-0.035064697,-0.04232788,-0.0340271,-0.019195557,0.010215759,-0.00592041,0.02999878,0.06311035,-0.0019664764,0.015327454,-0.019561768,0.04348755,-0.055633545,-0.014160156,0.027313232,-0.05203247,-0.016601562,0.00844574,-0.00010770559,-0.021850586,0.018936157,0.05038452,0.010307312,0.089660645,0.019226074,-0.029769897,-0.007888794,0.036010742,0.03314209,0.0026493073,0.0028057098,-0.011100769,-0.03086853,0.020568848,-0.011260986,-0.0011930466,-0.051727295,0.050964355,0.024536133,0.076171875,0.01020813,0.026611328,0.020751953,-0.012954712,-0.022094727,-0.04244995,-0.025894165,-0.04034424,-0.039123535,0.0345459,-0.013420105,-0.00058555603,-0.03692627,0.024093628,-0.015136719,0.010681152,-0.026168823,0.0073165894,0.002696991,-0.00019013882,0.018554688,0.0035686493,0.03741455,0.030975342,-0.037139893,0.01171875,0.009284973,-0.031097412,0.036132812,0.03564453,-0.014625549,-0.03567505,-0.042663574,-0.034973145,0.0007276535,-0.013557434,-0.026168823,-0.0129776,0.014633179,0.008407593,0.03427124,-0.016189575,-0.010528564,0.002412796,-0.025421143,-0.06921387,-0.0071372986,-0.055023193,0.007209778,0.03515625,-0.017669678,-0.013259888,-0.0017309189,-0.016220093,-0.012870789,0.017242432,0.018814087,0.01663208,-0.040985107,0.018737793,-0.012878418,0.0054626465,0.0010299683,0.030929565,0.0061302185,0.016952515,-0.01171875,0.023040771,-0.016784668,-0.03552246,0.0446167,-0.06762695,-0.0063323975,0.030471802,-0.037384033,-0.008674622,0.023544312,-0.041534424,-0.032409668,0.0071105957,-0.038024902,0.03555298,0.03237915,-0.040039062,-0.016647339,-0.056640625,0.0056495667,-0.00856781,0.08581543,0.018417358,0.0034618378,-0.03778076,0.02949524,0.0317688,0.00049734116,0.005630493,-0.013458252,-0.01838684,-0.011054993,-0.016967773,-0.030044556,-0.015350342,0.058502197,0.00541687,-0.0026168823,0.020004272,-0.0033893585,-0.01637268,0.02142334,-0.030593872,0.020736694,-0.045318604,0.044067383,-0.018081665,0.05718994,0.011054993,-0.012069702,-0.04901123,0.04928589,0.0015258789,0.050628662,-0.037628174,0.0035743713,0.0004351139,0.016159058,0.0035209656,-0.014556885,-0.010910034,-0.015396118,-0.037200928,-0.07611084,0.035095215,-0.007904053,0.018218994,0.040008545,0.021453857,0.04336548,-0.009284973,0.009963989,0.0057792664,-0.025604248,-0.014007568,-0.025939941,-0.021713257,-0.017349243,0.0005617142,-0.011711121,0.0040893555,0.01486969,0.028167725,-0.005432129,-0.014801025,-0.0014410019,0.041778564,0.010597229,0.0335083,0.020401001,0.036071777,0.05908203,0.013786316,-0.04547119,0.035339355,-0.0067863464,0.012527466,-0.0037059784,0.029144287,0.034210205,-0.025268555,-0.0029506683,-0.0011644363,-0.01259613,-0.03753662,-0.0043907166,-0.007247925,0.010467529,0.006752014,-0.022857666,0.027267456,0.010726929,-0.019836426,-0.023269653,0.036132812,-0.0020275116,-0.016601562,0.018249512,0.01776123,0.03933716,-0.020874023,0.0043296814,0.018218994,0.06323242,0.018447876,-0.017242432,0.002298355,0.0025806427,0.009742737,0.0013284683,0.012664795,-0.018569946,0.029220581,-0.002412796,0.0036182404,-0.0002965927,-0.0053100586,-0.033355713,0.020141602,0.00034689903,-0.009552002,0.00038599968,-0.0033493042,0.009170532,0.025360107,0.002855301,-0.0045814514,0.017028809,-0.019973755,-0.010108948,0.007598877,0.049194336,-0.010261536,0.014320374,0.027923584,-0.010284424,0.008644104,-0.03567505,0.012413025,0.036834717,0.030578613,-0.03717041,-0.06726074,-0.025039673,-0.026062012,0.030349731,0.0021247864,0.010894775,0.040130615,0.0005354881,0.012557983,0.06109619,0.0036907196,-0.005302429,-0.02684021,-0.035003662,-0.0079574585,0.008995056,0.006729126,-0.029022217,0.014976501,-0.022125244,-0.030654907,0.0126953125,-0.054382324,-0.00818634,0.018173218,-0.0034484863,0.009124756,-0.016708374,0.016098022,-0.015197754,-0.058898926,-0.009017944,0.027618408,0.031311035,-0.043029785,0.020721436,-0.023529053,-0.0011358261,-0.022827148,0.037200928,0.0234375,0.016738892,-0.00005543232,0.03567505,-0.020401001,0.021942139,-0.011756897,0.00008928776,-0.0055656433,-0.013473511,0.017410278,-0.034301758,-0.009933472,0.0289917,-0.02355957,-0.008514404,-0.022506714,-0.060943604,-0.00349617,-0.029190063,0.03189087,0.025741577,0.042938232,-0.020309448,0.014060974,0.013832092,-0.005191803,0.0028820038,-0.003501892,-0.025817871,0.0073661804,0.036590576,0.018249512,-0.0076179504,-0.026367188,-0.007129669,-0.01398468,-0.04321289,-0.0057029724,-0.017562866,-0.0067596436,-0.003282547,0.0070114136,-0.04736328,-0.00447464,-0.0044670105,-0.032806396,0.005405426,0.009971619,0.023910522,-0.001789093,-0.014663696,0.012420654,0.018707275,-0.0037269592,0.017547607,0.022109985,-0.017822266,-0.018035889,0.022842407,0.0061683655,0.029800415,-0.0009326935,-0.03805542,-0.007411957,-0.0055618286,-0.060455322,-0.008407593,0.01713562,-0.01727295,-0.010543823,-0.0044136047,-0.056030273,-0.0015411377,-0.03744507,-0.009475708,-0.007286072,0.01448822,0.022842407,-0.0010871887,0.017745972,0.0010709763,-0.021911621,-0.017944336,0.020568848,0.009269714,0.003019333,0.026763916,0.025863647,-0.014083862,-0.017059326,0.0056266785,-0.00762558,-0.017745972,-0.01612854,0.011741638,-0.005428314,-0.007881165,-0.005508423,-0.009223938,-0.040771484,0.0061416626,0.09246826,-0.013572693,0.008056641,-0.0058021545,-0.02784729,0.003194809,0.028762817,-0.04232788,0.012878418,-0.015151978,0.0061035156,-0.026885986,0.031051636,0.0047798157,0.0345459,-0.040527344,-0.047454834,0.012008667,0.0054893494,-0.0048294067,-0.061340332,-0.03579712,-0.061035156,-0.003824234,0.0020446777,-0.032470703,0.01121521,0.008903503,-0.0317688,-0.06616211,-0.005859375,0.03451538,-0.005973816,0.021011353,0.0022563934,0.018203735,0.015914917,0.013923645,-0.011161804,0.0211792,-0.00026869774,-0.007080078,-0.018951416,0.035858154,-0.014122009,-0.021530151,0.011878967,0.00819397,0.016036987,-0.008903503,0.015571594,-0.007247925,0.011375427,-0.0077934265,0.013122559,-0.016952515,-0.00028419495,0.05899048,-0.046966553,0.014945984,0.014709473,0.0071411133,0.004714966,0.017990112,0.011047363,-0.039093018,0.0075798035,0.009094238,0.025238037,0.043304443,-0.018875122,0.041412354,0.012084961,0.0041656494,0.015396118,-0.003074646,-0.0066986084,-0.042541504,-0.03189087,0.011123657,0.021530151,0.007537842,-0.007160187,0.009521484,-0.0037593842,-0.011451721,0.00289917,-0.016921997,-0.009231567,-0.005996704,0.018661499,-0.010444641,0.0048446655,-0.016189575,0.034729004,0.0262146,0.041290283,0.012954712,-0.026809692,-0.0037021637,0.026611328,-0.0024776459,0.0013494492,0.02671814,0.0143966675,0.013381958,0.02659607,0.036254883,-0.028518677,-0.0025501251,-0.025405884,0.00054597855,0.022109985,-0.0018453598,0.007080078,-0.0017261505,-0.018096924,0.009765625,-0.036010742,-0.0069732666,-0.041107178,-0.0259552,-0.00038051605,0.008773804,0.007965088,0.0005555153,-0.0007209778,0.004562378,-0.019561768,0.023712158,0.006252289,-0.007865906,0.035888672,0.030349731,-0.017318726,-0.035339355,0.004032135,-0.0078048706,0.002943039,0.015602112,-0.024291992,0.04360962,0.053833008,0.0259552,0.0013751984,0.0007958412,0.034423828,0.0008134842,0.0030441284,-0.0012483597,0.034851074,-0.010063171,0.019897461,-0.03805542,0.027145386,0.03161621,0.0073547363,-0.0068473816,-0.0037403107,-0.0036373138,0.05822754,-0.0063972473,0.004005432,0.018951416,-0.022598267,0.021865845,-0.008705139,0.010101318,-0.008644104,-0.01424408,-0.024414062,0.023513794,-0.00869751,-0.000025331974,0.015640259,-0.0284729,0.02255249,-0.0289917,-0.004299164,0.028518677,0.003856659,-0.018859863,-0.017501831,0.0005059242,-0.023651123,-0.04434204,-0.010879517,0.0023784637,0.034942627,0.007865906,0.016845703,-0.004890442,-0.021728516,0.029174805,-0.0016775131,-0.010887146,-0.008178711,-0.013748169,0.047851562,-0.035247803,0.056793213,0.03692627,-0.001127243,0.06124878,0.03817749,0.042877197,-0.008377075,0.0362854,-0.014595032,0.032714844,-0.04864502,-0.0040893555,0.011650085,0.038757324,-0.013534546,0.011947632,-0.005290985,0.025115967,-0.03491211,0.022842407,0.05206299,0.019485474,0.008384705,0.025268555,-0.011650085,-0.013496399,-0.020187378,-0.02027893,0.039916992,0.014450073,0.033111572,0.014007568,-0.0016899109,0.007381439,0.0034561157,-0.021881104,-0.0284729,0.06903076,0.046844482,-0.036468506,-0.016784668,-0.020385742,-0.013473511,-0.030273438,0.0023975372,0.005783081,0.01272583,0.019897461,-0.02848816,-0.0021877289,-0.015213013,0.008903503,0.024932861,0.011520386,-0.02218628,0.035736084,0.0090789795,0.022735596,0.029953003,-0.007835388,0.0023670197,-0.013786316,-0.032165527,0.020431519,0.03579712,-0.014671326,-0.0029621124,0.015792847,-0.011024475,0.04071045,0.026519775,-0.027069092,-0.013671875,0.023986816,0.018554688,0.009239197,0.044281006,0.016098022,0.018035889,0.03463745,0.034362793,0.024871826,-0.016647339,0.02305603,-0.002614975,0.011260986,-0.012268066,0.02519226,0.01727295,-0.0064735413,0.024780273,-0.028045654,-0.0037937164,0.019805908,0.015655518,-0.015853882,-0.006664276,-0.014511108,0.03945923,-0.014167786,0.0060310364,-0.00048398972,-0.008430481,0.010673523,0.006313324,0.014022827,-0.014694214,0.032226562,0.014671326,-0.010139465,-0.023406982,0.0473938,-0.045043945,0.01625061,-0.005332947,-0.011436462,-0.02859497,0.01423645,0.0058288574,0.021362305,-0.0018196106,-0.0036239624,-0.011062622,-0.0012693405,0.019760132,0.0022068024,0.009613037,-0.02130127,-0.012626648,-0.0015525818,0.033050537,0.0045051575,-0.008903503,-0.0030212402,-0.0013084412,-0.00014686584,-0.00038957596,-0.030044556,-0.010169983,0.016540527,-0.043670654,0.033325195,0.025619507,-0.004512787,0.024734497,-0.0090408325,-0.00522995,0.010108948,0.0042419434,0.011680603,0.0063438416,-0.02949524,0.014160156,-0.0051460266,0.04248047,0.03353882,0.0010681152,0.02960205,0.0067100525,-0.0181427,0.0075302124,0.0042304993,0.0335083,0.0047683716,-0.012245178,0.009017944,0.029144287,-0.035125732,-0.03515625,-0.012207031,-0.0259552,-0.01537323,-0.028335571,0.014709473,-0.009407043,0.02909851,0.04421997,0.013366699,-0.036468506,0.060546875,-0.011329651,0.046783447,-0.005542755,-0.0030288696,0.04547119,0.010971069,0.026367188,0.0032577515,0.0053482056,-0.0395813,0.0031147003,0.015625,0.027770996,0.020431519,0.005832672,0.0043678284,0.033447266,-0.0041885376,0.038848877,0.0072364807,-0.009750366,0.023635864,-0.002866745,-0.027435303,-0.00084257126,-0.012870789,0.018096924,0.050628662,-0.0038490295,-0.023376465,-0.015449524,-0.020645142,0.019638062,-0.010002136,0.019683838,0.0104904175,-0.016586304,0.022079468,-0.03237915,-0.00033521652,-0.010124207,0.023162842,-0.080566406,-0.025100708,0.008918762,0.019943237,-0.027160645,0.028686523,0.042114258,0.010917664,-0.008628845,0.041931152,-0.006175995,0.05407715,-0.0076293945,0.01789856,0.040222168,-0.0031604767,-0.020614624,0.011680603,0.023895264,-0.040130615,0.015014648,0.02960205,-0.018096924,0.006084442,-0.0027503967,0.016540527,-0.011428833,-0.0018339157,-0.001291275,0.005329132,0.009140015,-0.00819397,0.001285553,0.03353882,-0.003107071,0.005065918,0.006263733,-0.017044067,0.036132812,0.04345703,0.010108948,-0.036224365,-0.000218153,-0.0032482147,-0.029571533,-0.014122009,-0.006515503,-0.002155304,-0.03881836,0.0024299622,0.02633667,0.010002136,0.0112838745,-0.010955811,-0.009780884,0.015609741,0.010902405,0.014556885,0.0027580261,-0.010253906,0.03012085,-0.024414062,-0.020492554,-0.010124207,-0.011390686,0.02204895,0.03665161,-0.013206482,-0.047729492,0.028839111,-0.011039734,0.023788452,0.016143799,0.000351429,0.02079773,-0.010818481,-0.01424408,-0.0071983337,0.027236938,-0.01486969,-0.02961731,-0.027816772,0.008552551,0.035003662,-0.0026378632,-0.010185242,0.019577026,0.023712158,0.008659363,0.026062012,0.0034866333,0.04248047,0.026947021,-0.013015747,-0.018493652,-0.0006456375,-0.024597168,-0.018981934,0.028900146,-0.026382446,-0.015716553,0.019119263,0.011688232,0.0012741089,-0.011650085,-0.009109497,-0.013267517,-0.029953003,0.019256592,-0.019866943,0.017410278,-0.03552246,0.0003004074,0.0209198,0.010848999,-0.022949219,-0.01424408,0.017547607,-0.020339966,-0.055633545,0.01285553,-0.017333984,0.0014772415,-0.020339966,-0.00009250641,-0.0068092346,0.0231781,-0.013305664,-0.010169983,0.007156372,0.046142578,-0.005493164,0.0025348663,0.002500534,-0.024261475,-0.01876831,-0.011627197,0.0051574707,-0.009933472,0.028411865,0.0014619827,0.009346008,0.029800415,-0.017028809,0.002128601,-0.012817383,-0.0082473755,-0.008560181,-0.024627686,-0.012046814,0.018234253,0.0066223145,-0.0048179626,0.011459351,0.011390686,-0.015487671,-0.016494751,0.026763916,0.040771484,0.023483276,0.023788452,0.011711121,0.027618408,-0.024551392,0.017562866,-0.0073661804,0.030593872,-0.0077056885,-0.0104599,-0.0057373047,0.013145447,0.0030136108,0.017333984,-0.0037937164,0.024642944,0.025787354,0.03475952,0.016174316,-0.0013160706,-0.007865906,-0.017654419,-0.016708374,0.021270752,0.044647217,-0.0025100708,0.0158844,0.04071045,0.008270264,-0.02355957,-0.008529663,0.0070228577,-0.0038089752,-0.04360962,0.0019874573,-0.020095825,0.02494812,0.00081682205,0.0075950623,-0.013031006,0.008201599,0.020492554,-0.041412354,-0.018325806,0.037017822,0.015060425,-0.008964539,-0.011306763,-0.011291504,0.0040397644,0.000025451183,0.0007791519,-0.039733887,-0.024414062,-0.010803223,-0.006996155,0.028045654,0.002576828,-0.015853882,-0.018310547,0.009399414,-0.00058221817,-0.013046265,0.006252289,-0.011009216,-0.035064697,-0.009796143,0.023651123,-0.011352539,-0.015899658,0.0006494522,-0.006023407,-0.008331299,-0.024490356,0.021713257,-0.016525269,0.028442383,-0.00843811,-0.04046631,0.029144287,-0.025238037,0.027297974,-0.018051147,-0.024719238,-0.009963989,0.00680542,0.019577026,-0.013092041,-0.014320374,0.0033798218,-0.00819397,-0.019165039,-0.00207901,-0.0015115738,0.0016260147,-0.010421753,0.045532227,-0.0119018555,-0.032440186,0.01751709,0.0001924038,-0.0077934265,0.008102417,0.015396118,-0.007003784,0.01108551,-0.01335907,-0.0059928894,-0.014373779,-0.0385437,0.007335663,-0.02027893,0.00712204,0.021713257,0.0059661865,0.039764404,0.019012451,0.038757324,0.017501831,-0.00031137466,0.0385437,0.03086853,0.02458191,0.011436462,-0.019165039,-0.010818481,0.0031223297,-0.0051994324,-0.005001068,-0.01512146,-0.015258789,-0.036956787,0.01852417,-0.014083862,0.006164551,0.008956909,0.011444092,-0.021057129,0.03366089,-0.023269653,-0.021270752,-0.029373169,-0.0021896362,0.026443481,0.01083374,0.015213013,-0.0051956177,-0.025344849,0.025558472,0.05178833,0.00005787611,-0.022567749,-0.027496338,0.027008057,-0.0045280457,0.012130737,0.009750366,-0.03363037,-0.017852783,-0.0075798035,-0.021469116,0.01576233,-0.012359619,0.02722168,0.02142334,-0.01927185,-0.004837036,0.035247803,-0.013008118,0.009757996,0.0070228577,-0.011558533,0.04071045,0.03717041,0.00056648254,0.021209717,0.021865845,-0.050689697,0.0289917,0.0042152405,0.033416748,-0.003068924,-0.021987915,-0.05038452,-0.009170532,-0.008224487,-0.015731812],"createdAt":"2026-04-18T18:48:17.936Z","updatedAt":"2026-04-29T05:34:22.264Z","lastSeenAt":"2026-04-29T05:34:22.264Z","tsv":"'/api/v1/mortgages/11':41,90 '/request':133 '0.02':117,132 '000':106 '0x8335':111 '20':105 '2913':112 '402':198 '6':122 'accept':91 'access':32,146 'actual':205 'advertis':100,137 'ai/ml':63 'analyt':62 'api':59,139,154 'base':5,18,85,107,114 'base-network' 'bodi':192 'broader':47 'challeng':99,199 'confirm':200 'connect':163 'consist':126 'content':169 'cost':103 'crawl':152 'crypto':66 'data':2,15,37,61,184,208 'decim':123 'descript':180 'doc':153 'document':147,203 'endpoint':3,16,28,71,89,195 'equal':116 'exampl':177 'expect':193 'extrem':149 'financ':65 'function':206 'home loan API' 'infer':64 'instant':145 'json':96 'json-response' 'key':140 'limit':143 'live':197 'lowpaymentfee mortgage' 'lowpaymentfee.com':30,49 'maximum':102 'mortgag':1,14,35,183 'mortgage API' 'mortgage data endpoint' 'mortgage-data' 'mortgage-rel':34 'network':86 'offer':51 'openapi':173 'page':158 'paid':6,19 'paramet':189 'part':44 'path':40 'pay':56 'pay-per-call mortgage data' 'pay-per-request':55 'payment':78 'per':8,21,57,118 'per-request':7,20 'per-request-pricing' 'platform':48,74,129,136 'post':92,191 'price':134,155 'prompt':165 'protocol':79 'provid':31 'rate':142 'readm':157 'relat':36 'remain':210 'request':9,22,58,93,119 'request/response':176 'return':95,160,186 'schema':174,209 'servic':69 'settl':80 'span':60 'spars':150 'specif':88 'substant':168 'uniform':131 'unit':108 'unknown':211 'usdc':13,26,82,110,120 'usdc-settlement' 'use':75,121 'util':68 'varieti':53 'via':10,23 'wallet':164 'without':202 'x402':11,24,77,98 'x402 mortgage' 'x402-payment'","prices":[{"id":"eefd90d9-e2ff-48a1-8520-5064d524cdd7","listingId":"f8f6bc4d-e087-4104-b6cb-12d6de45cf93","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/11","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:48:17.936Z"}],"sources":[{"listingId":"f8f6bc4d-e087-4104-b6cb-12d6de45cf93","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/mortgages/11","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:17.936Z","lastSeenAt":"2026-04-29T05:34:22.264Z"}],"details":{"listingId":"f8f6bc4d-e087-4104-b6cb-12d6de45cf93","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/mortgages/11 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","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/11"},{"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":"USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with 6 decimals","source_url":"https://lowpaymentfee.com/api/v1/mortgages/11"}],"useCases":["Retrieving mortgage-related data on demand with micropayments","Integrating mortgage information into financial applications without API key management","Agent-driven mortgage data lookups settled in USDC on Base"],"bestFor":["Developers needing on-demand mortgage data with no subscription commitment","AI agents that can settle x402 payments in USDC on Base","Applications requiring keyless, pay-per-request financial data access"],"notFor":["Users who need detailed API documentation or schema guarantees before integrating","Bulk mortgage data retrieval where per-request pricing would be cost-prohibitive","Non-crypto users who cannot settle payments on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:13.166Z"},"updatedAt":"2026-04-29T05:34:22.264Z"}}