{"id":"f4f03a12-91d0-4832-9f47-7171c190f245","shortId":"qYYdPU","kind":"x402","title":"Mortgage data endpoint on Base, pay-per-call via x402 with USDC.","tagline":"Mortgage data endpoint on Base, pay-per-call via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides access to mortgage-related data at the path `/api/v1/mortgages/72`. 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 gated via the x402 payment protocol on the Base network using USDC.\n\nThe specific endpoint `/api/v1/mortgages/72` 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 site's stated flat pricing of $0.02 per request across all endpoints. Payment is made inline via the X-PAYMENT header; no API keys or accounts are required.\n\nThe endpoint's exact response schema and accepted input fields are not documented in the crawled material. The site's docs, pricing, and API pages all rendered only a \"Connect wallet\" prompt with no further content. The mortgage-specific path (`/mortgages/72`) suggests it may return data for a particular mortgage product or record identified by ID 72, but this is speculative. Without documentation or example responses, the precise data returned is unknown.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","mortgage-data","json-api","no-api-key"],"categories":["finance"],"synonyms":["mortgage API","mortgage data","home loan API","lowpaymentfee","x402 mortgage","USDC pay-per-call","Base network API"],"warnings":["No documentation available for /api/v1/mortgages/72 — input fields and response schema are unknown","All doc/pricing/API pages on the site render only a 'Connect wallet' prompt with no usable content","The purpose of the '/mortgages/72' path (whether it's a specific record, a category, or a template) is unclear"],"endpointUrl":"https://lowpaymentfee.com/api/v1/mortgages/72","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/72","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation, no input/output schema, and no example responses for this specific mortgage endpoint. The docs pages returned only wallet-connect prompts. The listing is effectively a stub with confirmed liveness and pricing.","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":"2026-04-19T05:53:10.719Z","embedding":[-0.025436401,0.02949524,0.050811768,0.046936035,-0.0030212402,-0.0018835068,-0.005718231,0.015022278,0.04824829,-0.06274414,0.019851685,-0.07006836,-0.039123535,-0.02607727,-0.045562744,0.01737976,0.022583008,0.013320923,-0.030639648,0.024368286,0.050445557,-0.044189453,-0.033233643,-0.0029773712,-0.000767231,0.008911133,-0.0440979,-0.023529053,-0.00096797943,-0.016418457,0.0043144226,-0.017501831,-0.011665344,0.007709503,-0.0041503906,0.024307251,-0.01777649,0.026809692,0.014762878,-0.0149383545,-0.003929138,-0.03729248,-0.00042057037,-0.005355835,-0.047454834,-0.009353638,-0.0013570786,-0.03479004,0.0021305084,0.0072631836,-0.022750854,-0.02192688,-0.009063721,0.030212402,0.022125244,-0.02458191,0.03186035,-0.017196655,0.0158844,0.01247406,0.005554199,-0.07287598,-0.012565613,-0.029876709,0.010871887,0.021850586,-0.029647827,0.081604004,0.014724731,0.08721924,0.032440186,0.02999878,0.029556274,0.024551392,0.019348145,-0.038482666,-0.0062675476,0.041809082,-0.049957275,-0.023345947,0.00058603287,-0.033050537,-0.05105591,-0.029571533,-0.0008625984,-0.030166626,0.01197052,0.030563354,-0.056427002,0.03842163,-0.09094238,0.0071487427,-0.020736694,-0.0078048706,0.016815186,-0.006500244,-0.0390625,0.011932373,0.00856781,0.0018186569,0.018859863,-0.029815674,0.01852417,-0.01965332,0.055511475,0.014846802,0.038116455,0.028839111,-0.008087158,-0.024749756,-0.02671814,0.004989624,0.0002965927,-0.012519836,0.026473999,0.029296875,-0.053741455,0.010681152,-0.033416748,0.007724762,-0.04989624,0.040130615,0.018157959,0.01689148,0.03591919,0.0116119385,0.008605957,0.012374878,-0.03668213,-0.0019702911,0.009178162,-0.01386261,-0.008514404,-0.014823914,-0.010620117,0.035461426,-0.013198853,-0.014457703,-0.039215088,0.0025749207,0.04168701,-0.041290283,0.05166626,0.032196045,-0.07098389,0.004547119,-0.034210205,0.019577026,-0.017944336,-0.03866577,0.013198853,0.014862061,-0.011161804,-0.018859863,0.0013942719,-0.037841797,0.0143585205,0.022491455,-0.028808594,0.051757812,-0.014144897,0.020629883,0.056793213,0.015106201,0.02166748,0.03967285,0.008758545,-0.08557129,-0.05633545,-0.02229309,-0.009384155,-0.012886047,-0.023803711,-0.012374878,-0.023773193,0.0002309084,-0.020843506,-0.03036499,0.014778137,-0.05126953,-0.0036945343,-0.046142578,-0.0024490356,0.0010871887,-0.025527954,-0.025405884,-0.038604736,0.079833984,0.015777588,0.040283203,0.035736084,-0.022567749,0.04345703,0.028198242,0.007843018,-0.018951416,0.021102905,-0.033233643,0.022521973,-0.02432251,0.012084961,-0.03982544,0.03842163,0.04336548,0.0056648254,-0.008468628,-0.026611328,-0.019714355,-0.044189453,-0.017578125,0.02204895,0.032318115,0.015930176,0.026412964,-0.013023376,-0.029052734,0.002506256,-0.010604858,0.005115509,0.050445557,0.026473999,0.0032463074,0.015319824,0.014541626,-0.056488037,0.033599854,0.009757996,-0.008880615,-0.0004427433,-0.024658203,0.04345703,0.017990112,-0.021911621,-0.0040893555,0.0004968643,0.0340271,-0.02078247,0.01247406,-0.009765625,-0.0021629333,-0.022521973,-0.041107178,-0.018417358,0.013938904,-0.020523071,-0.008758545,-0.03640747,-0.103393555,0.066223145,0.038604736,0.025482178,-0.024627686,-0.006629944,-0.005809784,-0.022018433,-0.04324341,0.020721436,0.09564209,0.00070524216,-0.023422241,0.02204895,0.010772705,-0.043762207,-0.013221741,-0.033172607,-0.028915405,-0.025558472,-0.012939453,-0.039123535,-0.01424408,0.005142212,0.023101807,0.05368042,-0.018737793,-0.055389404,0.025512695,-0.02128601,0.0069885254,-0.0395813,0.008331299,0.028564453,-0.016159058,0.06088257,0.005039215,0.008255005,0.017730713,-0.0026168823,0.013305664,-0.0079422,-0.011291504,-0.038208008,0.022491455,-0.009460449,-0.052581787,-0.0042762756,0.00014424324,0.039398193,-0.043670654,0.043792725,0.0006275177,0.012382507,0.052337646,0.005405426,-0.050720215,0.0075302124,0.021575928,0.040130615,0.039123535,0.027450562,-0.002166748,-0.029800415,0.04925537,-0.031051636,0.0021743774,0.01914978,0.017318726,0.03479004,-0.010803223,-0.012565613,-0.07098389,0.0030002594,-0.024871826,0.018295288,-0.043762207,0.0018730164,-0.0033454895,-0.006378174,-0.005657196,-0.020111084,-0.036010742,0.03677368,-0.007331848,0.0047187805,-0.034820557,-0.026489258,0.030532837,0.017791748,-0.008918762,-0.0053901672,0.02319336,0.024932861,-0.023925781,-0.02079773,-0.015029907,-0.035980225,-0.028656006,0.019958496,0.009414673,0.012962341,0.0064315796,-0.05569458,0.010276794,0.03475952,0.010803223,0.016281128,0.019195557,0.008659363,-0.038208008,-0.03933716,-0.029037476,-0.02458191,0.008224487,0.006340027,0.029281616,0.064819336,0.0059776306,0.009498596,-0.02267456,0.04269409,-0.053466797,-0.007724762,0.007621765,-0.05154419,-0.023376465,0.013015747,0.0064582825,-0.015914917,0.026123047,0.052886963,0.009384155,0.07751465,0.02458191,-0.029327393,-0.0181427,0.027053833,0.027572632,0.012519836,0.0068626404,-0.014518738,-0.037628174,0.028076172,-0.016479492,0.001083374,-0.05102539,0.04547119,0.027801514,0.08288574,0.008811951,0.011940002,0.018966675,-0.028244019,-0.019165039,-0.029159546,-0.023330688,-0.03768921,-0.044433594,0.029571533,-0.0206604,0.001074791,-0.032470703,0.03302002,-0.014587402,0.018600464,-0.023330688,0.010124207,0.016357422,-0.0027580261,0.01285553,0.0037555695,0.01763916,0.044006348,-0.036743164,0.02128601,0.017959595,-0.03161621,0.031707764,0.03527832,-0.015563965,-0.032714844,-0.034942627,-0.024276733,-0.0021381378,-0.0149002075,-0.037200928,-0.016418457,0.005596161,0.016860962,0.043029785,-0.019210815,-0.014823914,-0.013496399,-0.022338867,-0.061676025,-0.019515991,-0.04776001,-0.00043272972,0.04272461,-0.019744873,-0.014778137,-0.014480591,-0.013557434,-0.009536743,0.0028705597,0.018920898,0.011352539,-0.032073975,0.023071289,-0.01737976,0.00045514107,0.0004248619,0.033447266,0.0033187866,0.025527954,-0.019592285,0.018966675,-0.0060768127,-0.03427124,0.040863037,-0.07330322,0.0012426376,0.037719727,-0.03024292,-0.004261017,0.026168823,-0.042144775,-0.022644043,0.0052719116,-0.04309082,0.036193848,0.02961731,-0.04067993,-0.0129852295,-0.06137085,0.00819397,-0.00090789795,0.085876465,0.016586304,0.014549255,-0.024719238,0.022155762,0.0446167,-0.001709938,0.017333984,-0.012954712,-0.01777649,-0.0008749962,-0.017974854,-0.027893066,-0.010047913,0.04876709,0.008308411,-0.0121154785,0.021072388,-0.0020523071,-0.012535095,0.026870728,-0.027114868,0.02142334,-0.043670654,0.045806885,-0.0109939575,0.05657959,0.007434845,-0.018829346,-0.040649414,0.046813965,0.0046539307,0.03387451,-0.0340271,0.0015068054,-0.0053520203,0.013725281,0.0057258606,-0.01737976,-0.018630981,-0.014640808,-0.033843994,-0.07940674,0.04071045,-0.013786316,0.016143799,0.052093506,0.022354126,0.043182373,-0.005054474,0.011833191,0.003665924,-0.024505615,-0.009635925,-0.027404785,-0.018920898,-0.023071289,-0.0093307495,-0.008560181,0.0024909973,0.011543274,0.029083252,-0.0057640076,-0.015060425,-0.0025367737,0.03945923,0.016418457,0.02859497,0.01966858,0.032928467,0.05899048,0.015701294,-0.03652954,0.029693604,-0.009292603,0.008003235,0.009292603,0.024627686,0.045440674,-0.016830444,0.007965088,0.0055732727,-0.0075035095,-0.036956787,-0.004211426,-0.014968872,0.0152282715,0.0028762817,-0.023086548,0.02192688,0.0090789795,-0.026367188,-0.011070251,0.029800415,-0.0076904297,-0.026046753,0.016479492,0.026992798,0.026290894,-0.020263672,0.0025501251,0.023590088,0.05130005,0.015388489,-0.027114868,0.0025596619,0.003068924,0.004398346,0.008995056,0.020599365,-0.009315491,0.029373169,0.0009665489,0.0035266876,0.0051956177,0.000039935112,-0.03765869,0.01651001,0.010124207,-0.01600647,-0.0093307495,-0.0016508102,0.016464233,0.021728516,0.0059051514,-0.008888245,0.010887146,-0.0126953125,-0.011917114,0.010116577,0.041656494,-0.013679504,0.0084991455,0.029937744,-0.007835388,0.019699097,-0.027053833,0.020889282,0.030532837,0.024047852,-0.037078857,-0.061706543,-0.02255249,-0.01979065,0.02041626,-0.009788513,0.0012636185,0.033691406,0.0023326874,0.006542206,0.06137085,0.0063095093,-0.0015106201,-0.026931763,-0.031555176,-0.010902405,0.0027942657,0.01058197,-0.030441284,0.013259888,-0.024246216,-0.021820068,-0.00040769577,-0.04937744,-0.0082092285,0.016448975,-0.005176544,0.0105896,-0.009902954,0.009178162,-0.012374878,-0.056884766,-0.015808105,0.015823364,0.032592773,-0.045135498,0.022247314,-0.014007568,-0.013343811,-0.01159668,0.0435791,0.02319336,0.016983032,0.00010293722,0.03604126,-0.023773193,0.019607544,-0.005962372,0.0057640076,-0.009170532,-0.011940002,0.016418457,-0.028686523,-0.004501343,0.019622803,-0.015403748,-0.014465332,-0.019821167,-0.050323486,0.004085541,-0.03503418,0.028366089,0.024459839,0.035980225,-0.019424438,0.012268066,0.012565613,-0.0012636185,-0.0049743652,-0.015464783,-0.014404297,-0.004535675,0.039245605,0.012039185,-0.011161804,-0.02243042,-0.008766174,-0.019500732,-0.04272461,-0.0030078888,-0.01663208,-0.008110046,-0.005214691,0.002067566,-0.05166626,0.00217247,-0.0018930435,-0.031585693,0.0011024475,0.008926392,0.010047913,-0.0055885315,-0.016448975,0.010192871,0.016082764,0.002571106,0.013259888,0.024871826,-0.020858765,-0.006389618,0.021636963,-0.017562866,0.02281189,0.006549835,-0.041046143,-0.0025253296,-0.006160736,-0.070129395,-0.013435364,0.006603241,-0.015548706,-0.015670776,-0.010284424,-0.05545044,0.0024204254,-0.032348633,-0.009963989,-0.0060653687,0.008895874,0.032196045,-0.0017385483,0.029083252,-0.00881958,-0.020339966,-0.018051147,0.024093628,0.008781433,0.00036978722,0.018798828,0.019607544,-0.018661499,-0.010360718,0.008605957,-0.0027656555,-0.007774353,-0.008773804,0.006225586,-0.003993988,-0.00484848,-0.012878418,-0.012374878,-0.04272461,0.008544922,0.08984375,-0.01285553,0.00066185,-0.0072517395,-0.031433105,0.003314972,0.03668213,-0.04800415,0.016677856,-0.016677856,0.00083732605,-0.025634766,0.03277588,0.000767231,0.037139893,-0.038970947,-0.04373169,0.009521484,0.004234314,-0.01876831,-0.054382324,-0.035736084,-0.054473877,0.01058197,0.00008845329,-0.034606934,0.0023918152,0.013343811,-0.024932861,-0.07342529,-0.015716553,0.03048706,-0.00084733963,0.020599365,0.009101868,0.011947632,0.018981934,0.017410278,-0.013504028,0.016204834,0.007534027,-0.008338928,-0.011253357,0.028076172,-0.011520386,-0.02243042,0.027954102,0.011192322,0.017059326,0.0039138794,0.017318726,-0.008850098,0.0069732666,0.00093889236,0.014587402,-0.016281128,0.004055023,0.06451416,-0.048706055,0.012939453,0.019180298,0.0034503937,0.013046265,0.013961792,0.012702942,-0.04107666,-0.0012083054,0.012039185,0.029281616,0.042633057,-0.018173218,0.029403687,0.019104004,-0.00012052059,0.013763428,-0.010597229,-0.0067329407,-0.050109863,-0.030258179,0.00881958,0.0055618286,0.004310608,-0.013046265,0.006839752,0.00022876263,-0.013717651,-0.0010004044,-0.017959595,-0.018127441,-0.011817932,0.012428284,-0.016616821,0.0020141602,-0.01499939,0.030456543,0.0124435425,0.038757324,0.026000977,-0.027999878,-0.01096344,0.028411865,-0.0051078796,0.0028953552,0.030563354,0.012802124,0.005706787,0.03866577,0.037322998,-0.026000977,0.0065078735,-0.026412964,-0.009239197,0.022628784,0.0069503784,-0.0023002625,-0.0049743652,-0.00010317564,-0.004589081,-0.037994385,-0.015945435,-0.045013428,-0.02809143,0.0006532669,-0.00011271238,0.013977051,-0.002325058,-0.0070533752,0.014198303,-0.020126343,0.02960205,0.011260986,-0.02494812,0.027038574,0.02859497,-0.021636963,-0.034423828,-0.0037174225,-0.012130737,0.005832672,0.014862061,-0.02418518,0.034942627,0.043945312,0.025268555,-0.0024585724,0.018798828,0.031341553,0.0023860931,0.0052948,0.0021953583,0.03363037,-0.012184143,0.024353027,-0.04034424,0.034179688,0.028778076,0.006752014,-0.017532349,-0.009307861,-0.0073013306,0.06414795,-0.0060272217,-0.0010261536,0.016998291,-0.008995056,0.018981934,-0.0016231537,0.005722046,-0.008514404,-0.01689148,-0.025527954,0.027877808,-0.008911133,-0.0067481995,0.019943237,-0.023498535,0.031311035,-0.026916504,0.00084257126,0.027557373,0.0029125214,-0.01713562,-0.027648926,-0.0016975403,-0.013900757,-0.04562378,-0.005947113,0.01737976,0.03555298,0.026290894,0.016967773,-0.0035896301,-0.021026611,0.022644043,-0.00043439865,-0.011291504,0.0010147095,-0.019943237,0.049438477,-0.03414917,0.07269287,0.03945923,0.004169464,0.062347412,0.028076172,0.045135498,-0.011161804,0.035491943,-0.021148682,0.02229309,-0.041168213,-0.0029907227,0.018737793,0.035888672,-0.015579224,0.0072288513,-0.0072631836,0.024963379,-0.03805542,0.01600647,0.052246094,0.0231781,0.007423401,0.024749756,0.00062799454,-0.018722534,-0.025314331,-0.021621704,0.03652954,0.011886597,0.032348633,0.016311646,0.005344391,0.017059326,0.010070801,-0.02104187,-0.033081055,0.06210327,0.0625,-0.02848816,-0.015449524,-0.020553589,-0.010803223,-0.030960083,-0.0029315948,0.0033397675,0.01701355,0.019180298,-0.028320312,-0.0013103485,-0.012840271,-0.000705719,0.034057617,0.018981934,-0.02684021,0.025436401,0.009239197,0.016815186,0.028274536,-0.01210022,0.010620117,-0.00466156,-0.026168823,0.027816772,0.031204224,-0.019302368,-0.00687027,0.015220642,-0.015960693,0.030410767,0.031433105,-0.028808594,-0.004234314,0.023910522,0.01928711,0.0036811829,0.04257202,0.01763916,0.018432617,0.045410156,0.034851074,0.026046753,-0.013999939,0.012611389,0.0005130768,0.008895874,-0.0077438354,0.029678345,0.018661499,-0.009757996,0.018463135,-0.0154800415,-0.006549835,0.023925781,0.011688232,-0.011306763,-0.0046577454,-0.0074501038,0.046539307,-0.015342712,0.0071105957,-0.0007677078,-0.010932922,0.009109497,0.00894928,0.010910034,-0.002653122,0.030761719,0.023284912,-0.019302368,-0.017211914,0.046813965,-0.038848877,0.02432251,-0.0020771027,-0.0069084167,-0.02897644,0.012962341,0.0028858185,0.016143799,0.0015144348,-0.010070801,-0.015220642,-0.0011863708,0.0129852295,-0.0024929047,0.010025024,-0.02458191,-0.014022827,0.0069503784,0.03591919,0.008811951,-0.008148193,0.007835388,0.0028572083,0.0019073486,0.0017356873,-0.029724121,-0.010787964,0.023284912,-0.055145264,0.031051636,0.024612427,0.0014600754,0.025115967,-0.01184082,-0.0029907227,0.0107040405,0.0023097992,0.019302368,0.009681702,-0.029159546,0.013244629,-0.004009247,0.04296875,0.033935547,0.011711121,0.037597656,0.0049057007,-0.01309967,0.008270264,0.0038471222,0.030731201,-0.0011548996,-0.017059326,0.017211914,0.020324707,-0.02772522,-0.03427124,-0.009216309,-0.027801514,-0.033050537,-0.02784729,0.009895325,0.0026988983,0.033569336,0.040527344,0.022384644,-0.04421997,0.05618286,-0.0048103333,0.04348755,-0.013366699,-0.00868988,0.046722412,0.0110321045,0.03277588,0.004020691,0.0028152466,-0.037597656,-0.0049057007,0.008308411,0.01676941,0.01687622,0.0008211136,0.0066108704,0.031311035,-0.004638672,0.044830322,0.004650116,-0.008384705,0.020935059,-0.002878189,-0.022003174,-0.004722595,-0.014167786,0.013015747,0.04547119,-0.004497528,-0.017471313,-0.023117065,-0.019302368,0.013542175,-0.008842468,0.012565613,0.008338928,-0.019058228,0.024368286,-0.04244995,0.003358841,-0.000022172928,0.016021729,-0.06665039,-0.020523071,0.009529114,0.020401001,-0.02861023,0.032836914,0.040893555,0.013366699,-0.009864807,0.0413208,-0.008110046,0.04888916,-0.011817932,0.018630981,0.03768921,0.0013914108,-0.01676941,-0.0010004044,0.03036499,-0.043121338,0.011451721,0.026412964,-0.013114929,0.0062026978,-0.0036716461,0.007369995,-0.005317688,0.0013570786,-0.0038223267,0.017547607,0.001871109,-0.013160706,-0.0011396408,0.03326416,-0.0069122314,0.011672974,0.00894928,-0.020309448,0.034423828,0.04473877,0.019348145,-0.03439331,-0.0074043274,-0.0054893494,-0.025039673,-0.016555786,0.0007133484,0.0056762695,-0.042236328,-0.0033550262,0.019882202,0.013961792,0.011947632,-0.013244629,-0.013656616,0.0073547363,0.010871887,0.021881104,0.0022716522,-0.013038635,0.030212402,-0.025009155,-0.022384644,-0.013320923,-0.009521484,0.033203125,0.030166626,-0.020889282,-0.045837402,0.027160645,-0.022399902,0.024047852,0.022232056,0.0020046234,0.017913818,-0.013198853,-0.015579224,-0.0076828003,0.035064697,-0.015083313,-0.026885986,-0.029205322,0.011505127,0.030059814,-0.0019359589,-0.01272583,0.016815186,0.024719238,0.013824463,0.03173828,0.009170532,0.03753662,0.02619934,-0.013702393,-0.019515991,0.0060577393,-0.015182495,-0.016571045,0.0287323,-0.021469116,-0.027191162,0.02432251,0.02154541,0.002861023,-0.0024604797,-0.010681152,-0.0146865845,-0.022827148,0.021118164,-0.022766113,0.0037975311,-0.026641846,0.0031280518,0.009506226,0.006378174,-0.034423828,-0.018234253,0.02381897,-0.020263672,-0.05609131,0.0033855438,-0.015838623,-0.0037460327,-0.018508911,-0.00044059753,-0.0064315796,0.01828003,-0.008529663,-0.009483337,0.005180359,0.046783447,-0.005329132,-0.002811432,-0.0041542053,-0.022994995,-0.018371582,-0.010681152,0.0010175705,-0.0003068447,0.030410767,0.010231018,0.006149292,0.03475952,-0.018417358,0.0040016174,-0.011924744,-0.005050659,-0.014907837,-0.023208618,-0.014480591,0.015731812,-0.00036787987,-0.005203247,0.006389618,0.0137786865,-0.018539429,-0.010017395,0.033477783,0.035064697,0.018218994,0.024398804,0.0069732666,0.010002136,-0.026611328,0.022384644,-0.00724411,0.029815674,-0.002445221,-0.016540527,-0.0027618408,0.018478394,0.000013232231,0.015975952,-0.01789856,0.022445679,0.02520752,0.03164673,0.023254395,0.008811951,-0.008735657,-0.017578125,-0.019332886,0.006931305,0.03656006,-0.0050735474,0.013122559,0.029922485,0.005580902,-0.032989502,-0.0066986084,0.0040740967,-0.0002002716,-0.045410156,-0.004714966,-0.016220093,0.026168823,-0.0014352798,0.013580322,-0.007926941,0.0042495728,0.02760315,-0.039611816,-0.021362305,0.028518677,0.022323608,-0.009643555,-0.011764526,-0.0033340454,0.0037899017,0.0031528473,-0.004032135,-0.027435303,-0.013160706,0.002784729,-0.015510559,0.023986816,-0.00017440319,-0.01235199,-0.011131287,0.009773254,0.00060129166,-0.023117065,0.007965088,-0.013183594,-0.034851074,0.0005431175,0.020736694,-0.012207031,-0.016296387,-0.0061073303,-0.0042037964,-0.0052337646,-0.027435303,0.01512146,-0.017227173,0.031051636,-0.0034103394,-0.042907715,0.025726318,-0.019500732,0.020843506,-0.011642456,-0.026641846,-0.011291504,0.008613586,0.018432617,-0.0077819824,-0.021621704,0.0073547363,-0.017471313,-0.028137207,0.0045776367,-0.008636475,-0.0068893433,-0.026031494,0.04031372,-0.0021095276,-0.037384033,0.022979736,-0.00944519,-0.0056991577,0.000010609627,0.017059326,-0.008277893,0.014038086,-0.01096344,-0.011993408,-0.014823914,-0.03567505,0.011260986,-0.017074585,0.017196655,0.02545166,0.013244629,0.04159546,0.022827148,0.044830322,0.015350342,-0.005645752,0.040283203,0.031433105,0.03491211,0.0012779236,-0.021987915,-0.017028809,-0.005580902,-0.007701874,-0.0032539368,-0.0062828064,-0.014984131,-0.030059814,0.020874023,-0.0099105835,0.012458801,0.0048828125,0.012557983,-0.025100708,0.03387451,-0.029052734,-0.031951904,-0.01889038,-0.010131836,0.01838684,0.012237549,0.017837524,-0.0041770935,-0.024734497,0.020187378,0.057556152,0.0028820038,-0.022918701,-0.017410278,0.020477295,0.0040130615,0.006919861,0.017745972,-0.023971558,-0.023834229,-0.0059928894,-0.020339966,0.028167725,-0.008163452,0.026000977,0.005947113,-0.0151901245,-0.0074043274,0.048461914,-0.016067505,0.0035362244,0.0055007935,-0.0046463013,0.049041748,0.03942871,-0.004459381,0.025848389,0.013664246,-0.05895996,0.024108887,0.012008667,0.029556274,0.0008611679,-0.02458191,-0.0541687,-0.007801056,-0.008384705,-0.014724731],"createdAt":"2026-04-18T18:48:23.962Z","updatedAt":"2026-04-29T05:06:25.879Z","lastSeenAt":"2026-04-29T05:06:25.879Z","tsv":"'/api/v1/mortgages/72':41,86 '/mortgages/72':195 '0.02':113,131 '000':102 '0x8335':107 '20':101 '2913':108 '6':118 '72':211 'Base network API' 'USDC pay-per-call' 'accept':87,161 'access':32 'account':151 'across':134 'advertis':96 'ai/ml':63 'analyt':62 'api':59,148,177 'base':5,18,79,103,110 'broader':47 'call':9,22 'challeng':95 'connect':183 'consist':122 'content':189 'cost':99 'crawl':169 'crypto':66 'data':2,15,37,61,200,223 'decim':119 'doc':174 'document':166,217 'endpoint':3,16,28,85,136,155 'equal':112 'exact':157 'exampl':219 'field':163 'financ':65 'flat':128 'gate':71 'header':146 'home loan API' 'id':210 'identifi':208 'infer':64 'inlin':140 'input':162 'json':92 'json-api' 'key':149 'lowpaymentfee' 'lowpaymentfee.com':30,49 'made':139 'materi':170 'maximum':98 'may':198 'mortgag':1,14,35,192,204 'mortgage API' 'mortgage data' 'mortgage-data' 'mortgage-rel':34 'mortgage-specif':191 'network':80 'no-api-key' 'offer':51 'page':178 'part':44 'particular':203 'path':40,194 'pay':7,20,56 'pay-per-cal':6,19 'pay-per-request':55 'payment':75,137,145 'per':8,21,57,114,132 'platform':48 'post':88 'precis':222 'price':129,175 'product':205 'prompt':185 'protocol':76 'provid':31 'record':207 'relat':36 'render':180 'request':58,89,115,133 'requir':153 'respons':158,220 'return':91,199,224 'schema':159 'servic':69 'site':125,172 'span':60 'specif':84,193 'specul':215 'state':127 'suggest':196 'unit':104 'unknown':226 'usdc':13,26,82,106,116 'usdc-base' 'use':81,117 'util':68 'varieti':53 'via':10,23,72,141 'wallet':184 'without':216 'x':144 'x-payment':143 'x402':11,24,74,94 'x402 mortgage' 'x402-payment'","prices":[{"id":"acf3ee5c-40b9-493a-901c-30d1a832429e","listingId":"f4f03a12-91d0-4832-9f47-7171c190f245","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/72","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:48:23.962Z"}],"sources":[{"listingId":"f4f03a12-91d0-4832-9f47-7171c190f245","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/mortgages/72","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:23.962Z","lastSeenAt":"2026-04-29T05:06:25.879Z"}],"details":{"listingId":"f4f03a12-91d0-4832-9f47-7171c190f245","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/mortgages/72 \\\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 x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/mortgages/72"},{"claim":"The site advertises $0.02 per request flat 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","source_url":"https://lowpaymentfee.com/api/v1/mortgages/72"}],"useCases":["Retrieving mortgage product or record data on demand","Integrating mortgage information into financial dashboards","Agent-driven mortgage data lookups with micropayments"],"bestFor":["Developers needing on-demand mortgage data without subscriptions","AI agents that can settle x402 payments on Base","Applications requiring pay-per-call financial data access"],"notFor":["Users who need detailed API documentation before integrating","Bulk mortgage data downloads (pay-per-request model may be costly at scale)","Users without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:12.883Z"},"updatedAt":"2026-04-29T05:06:25.879Z"}}