{"id":"177b8c65-cc2e-44a3-8cc8-09bb3b929fa9","shortId":"vV6sUH","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 `/api/v1/mortgages/87` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs settled via the x402 protocol on the Base network using USDC. The specific endpoint appears to serve mortgage-related data (resource ID 87), though the exact response schema and input parameters are not documented in the available crawl material. The endpoint is live and returns a valid x402 challenge on POST.\n\nThe platform advertises a flat $0.02 per request across its API catalog, and the x402 challenge for this endpoint shows a `maxAmountRequired` of 20,000 base units of USDC (6 decimals), which equals $0.02 USD — consistent with the site's stated pricing. Payment is made via the x402 exact scheme to a specified wallet address on Base. No API keys or rate limits are advertised; access is gated purely by micropayment.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI spec, no request/response schema, and no description of what mortgage data this endpoint actually returns. The endpoint's purpose must be inferred entirely from its URL path.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","mortgage-data","pay-per-request","no-api-key"],"categories":["finance"],"synonyms":["mortgage API","mortgage data","home loan API","lowpaymentfee","x402 mortgage","USDC micropayment API","real estate finance API"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content","No request or response schema provided; the exact data returned by /api/v1/mortgages/87 is unknown","The endpoint path suggests a specific resource ID (87) but there is no explanation of what this ID represents","The broader platform lists many API categories but this specific mortgage endpoint is not listed on the homepage catalog"],"endpointUrl":"https://lowpaymentfee.com/api/v1/mortgages/87","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/87","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response schema, and no explanation of what mortgage data is returned. The endpoint's purpose is inferred solely from its URL path, 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":"2026-04-19T05:51:24.843Z","embedding":[-0.026489258,0.022247314,0.04095459,0.04144287,-0.009086609,-0.0023097992,-0.00026512146,0.016296387,0.048919678,-0.07165527,0.020019531,-0.07495117,-0.030273438,-0.022064209,-0.0423584,0.024841309,0.013023376,0.014289856,-0.028900146,0.02330017,0.044708252,-0.04171753,-0.026046753,-0.0007047653,-0.009162903,0.0074424744,-0.036895752,-0.013069153,-0.003332138,-0.012008667,0.0023670197,-0.021270752,-0.018981934,0.009208679,0.0027046204,0.020935059,-0.008773804,0.0256958,0.0071754456,-0.020950317,-0.007965088,-0.039733887,-0.005001068,-0.008056641,-0.057037354,-0.01411438,0.0043525696,-0.03173828,0.006793976,0.0025196075,-0.03152466,-0.009544373,-0.006340027,0.022064209,0.012329102,-0.025253296,0.019439697,-0.018051147,0.0048065186,0.0012769699,0.009864807,-0.07684326,-0.025375366,-0.025756836,0.00843811,0.01902771,-0.026489258,0.088378906,0.013671875,0.08874512,0.031433105,0.030319214,0.023162842,0.019363403,0.01612854,-0.0345459,-0.022018433,0.05709839,-0.055419922,-0.011909485,-0.00081539154,-0.02609253,-0.050811768,-0.037322998,-0.009422302,-0.028823853,0.0062828064,0.030929565,-0.057800293,0.043914795,-0.07659912,0.002023697,-0.0070266724,-0.0050849915,0.026565552,-0.022476196,-0.034942627,0.017532349,0.01360321,0.0061416626,0.0005927086,-0.040649414,0.028396606,-0.028625488,0.05267334,0.01121521,0.026123047,0.025283813,0.0017824173,-0.016723633,-0.033416748,0.004306793,0.021087646,-0.010383606,0.0110321045,0.039855957,-0.05429077,0.021865845,-0.04397583,0.013755798,-0.03894043,0.04925537,0.015380859,0.016647339,0.054595947,0.0050621033,0.018493652,0.030090332,-0.040893555,0.0029277802,0.022216797,-0.013366699,-0.0073509216,-0.0135650635,-0.025100708,0.030441284,-0.023620605,-0.005554199,-0.0413208,0.0077705383,0.040252686,-0.03036499,0.049468994,0.022323608,-0.07092285,0.0015602112,-0.034332275,0.018707275,-0.0042381287,-0.03237915,0.019927979,0.014511108,-0.0012702942,-0.03024292,-0.00006574392,-0.030776978,-0.0024356842,0.028305054,-0.016830444,0.04272461,-0.007522583,0.018341064,0.070129395,0.018569946,0.021347046,0.03451538,0.005077362,-0.08319092,-0.060638428,-0.01499939,-0.009422302,-0.008613586,-0.0335083,-0.014472961,-0.033691406,-0.012107849,-0.000073194504,-0.018478394,0.014823914,-0.055480957,0.0037612915,-0.039398193,-0.007801056,-0.0105896,-0.03567505,-0.031585693,-0.035339355,0.06414795,0.01689148,0.029190063,0.038879395,-0.015655518,0.027954102,0.037841797,0.0011234283,-0.0011949539,0.012519836,-0.029266357,0.016693115,-0.030532837,-0.00869751,-0.034088135,0.048797607,0.033569336,-0.004337311,-0.015838623,-0.033966064,-0.019744873,-0.036712646,-0.0053100586,0.023513794,0.026641846,0.011787415,0.032836914,-0.019454956,-0.036743164,0.013000488,-0.011672974,0.011329651,0.0395813,0.03479004,0.0018568039,0.013572693,0.01991272,-0.054840088,0.036499023,0.010147095,0.0037899017,-0.012664795,-0.010314941,0.02142334,0.009315491,-0.015167236,-0.007194519,0.0038394928,0.0362854,-0.027374268,-0.004009247,-0.013832092,-0.0014181137,-0.028030396,-0.03100586,-0.030654907,0.01171875,-0.015670776,0.000028431416,-0.035186768,-0.09777832,0.059936523,0.040924072,0.019226074,-0.020523071,-0.012863159,0.005722046,-0.03375244,-0.055023193,0.02859497,0.09539795,0.004886627,-0.023330688,0.025253296,0.006313324,-0.037231445,-0.0038967133,-0.036895752,-0.028015137,-0.027053833,-0.011695862,-0.035614014,-0.012939453,0.0069732666,0.030929565,0.043395996,-0.0066833496,-0.055786133,0.013305664,-0.021072388,0.009086609,-0.037384033,0.0036506653,0.021408081,-0.0035686493,0.06161499,0.015045166,0.008560181,0.014923096,-0.0069847107,0.0067214966,-0.011024475,0.00060606,-0.03338623,0.013793945,0.0025558472,-0.06842041,0.0029411316,0.0044937134,0.035095215,-0.05822754,0.047943115,0.00642395,0.021652222,0.056610107,0.008132935,-0.03515625,0.004180908,0.017120361,0.037200928,0.03515625,0.0059776306,-0.0107803345,-0.033325195,0.048797607,-0.026138306,-0.0018167496,0.008911133,0.013542175,0.037200928,0.00006687641,-0.016159058,-0.062164307,0.003452301,-0.027145386,0.019378662,-0.029266357,-0.0014562607,-0.012924194,-0.010192871,-0.002790451,-0.014640808,-0.023117065,0.030960083,-0.004634857,0.0015468597,-0.022247314,-0.029632568,0.029830933,0.027130127,-0.004425049,-0.0016202927,0.033935547,0.020614624,-0.008552551,-0.010246277,-0.020355225,-0.0340271,-0.027374268,0.013771057,-0.0061569214,0.016357422,0.015022278,-0.05886841,0.0031375885,0.021057129,0.020523071,0.029525757,0.016220093,0.0044441223,-0.048706055,-0.033569336,-0.032226562,-0.012741089,0.0076942444,-0.012138367,0.0340271,0.05606079,-0.0021133423,0.011444092,-0.030899048,0.03491211,-0.060302734,-0.012756348,0.012260437,-0.05441284,-0.009994507,0.018356323,0.0008854866,-0.006916046,0.02357483,0.041290283,0.0035095215,0.08770752,0.023498535,-0.0440979,-0.0069732666,0.030532837,0.020568848,0.0075302124,-0.000054180622,-0.012016296,-0.047027588,0.03479004,-0.0003504753,0.0008735657,-0.05014038,0.036712646,0.02658081,0.07519531,0.0035037994,0.019378662,0.0059432983,-0.013061523,-0.033966064,-0.026321411,-0.02709961,-0.037841797,-0.042510986,0.028427124,-0.031158447,0.021392822,-0.029678345,0.046051025,-0.011581421,0.022720337,-0.022583008,0.0077323914,0.004135132,0.0062828064,0.017684937,0.009208679,0.04119873,0.036865234,-0.032348633,0.012496948,0.015640259,-0.02923584,0.03378296,0.041412354,-0.0014295578,-0.028579712,-0.040222168,-0.03353882,0.00491333,0.0015945435,-0.04724121,-0.024169922,-0.0034065247,0.011222839,0.044189453,-0.01889038,-0.009811401,-0.015838623,-0.018295288,-0.0680542,-0.01689148,-0.043792725,0.015159607,0.04788208,-0.024490356,-0.012840271,-0.01260376,-0.022064209,-0.004436493,0.013870239,0.021331787,0.022384644,-0.043395996,0.026809692,-0.021591187,0.0012311935,0.004611969,0.04043579,0.0021381378,0.018707275,-0.004878998,0.016662598,-0.019363403,-0.037261963,0.042266846,-0.072753906,-0.0058288574,0.039093018,-0.039031982,0.0037651062,0.022140503,-0.048187256,-0.036865234,0.008079529,-0.05218506,0.02507019,0.028213501,-0.031829834,-0.016143799,-0.058166504,0.012702942,-0.009605408,0.081604004,0.0067710876,0.004348755,-0.033966064,0.038604736,0.03970337,0.0026874542,0.005744934,-0.012664795,-0.011245728,-0.0039138794,-0.007205963,-0.029647827,-0.023529053,0.061187744,0.0066833496,-0.005355835,0.0143585205,-0.018356323,-0.022476196,0.028945923,-0.024993896,0.024536133,-0.03994751,0.037872314,-0.009025574,0.04949951,0.0009636879,-0.018600464,-0.038085938,0.044433594,0.0006055832,0.04360962,-0.03173828,0.0008149147,-0.009552002,0.005832672,0.0057029724,-0.0043792725,-0.016967773,-0.019927979,-0.03616333,-0.079589844,0.036132812,-0.0068130493,0.016479492,0.0345459,0.013893127,0.029830933,-0.0049476624,0.007320404,0.009773254,-0.02545166,0.0003080368,-0.028182983,-0.023117065,-0.022018433,-0.0088272095,-0.019989014,0.015602112,0.01802063,0.0390625,-0.0068473816,-0.0066108704,0.0004515648,0.02670288,0.010498047,0.028640747,0.025650024,0.024383545,0.061706543,0.020858765,-0.03765869,0.033416748,-0.012054443,0.016586304,-0.0012407303,0.023406982,0.04586792,-0.025131226,-0.007358551,-0.004508972,-0.013046265,-0.032989502,0.005657196,-0.01802063,0.010147095,0.0051574707,-0.014053345,0.015281677,0.0039596558,-0.015991211,-0.0073394775,0.026443481,-0.00017166138,-0.030197144,0.00983429,0.02330017,0.041809082,-0.025878906,0.007255554,0.017791748,0.061798096,0.018875122,-0.019241333,-0.007888794,-0.008728027,0.0016508102,0.014350891,0.023895264,-0.016540527,0.038085938,0.009490967,0.01222229,0.010528564,0.0057754517,-0.029708862,0.015182495,-0.008834839,-0.00315094,-0.007663727,-0.0005555153,0.012886047,0.008712769,0.007019043,0.001461029,0.029922485,-0.012298584,-0.018112183,0.011528015,0.038085938,-0.007980347,0.012504578,0.027664185,-0.010238647,0.017929077,-0.032958984,0.0010433197,0.026382446,0.021621704,-0.032714844,-0.06530762,-0.01725769,-0.017532349,0.018722534,-0.016433716,0.006843567,0.04437256,-0.0014286041,0.00617218,0.060943604,0.0061569214,-0.0099487305,-0.03024292,-0.035736084,-0.016815186,0.002565384,0.013893127,-0.017593384,0.009544373,-0.019592285,-0.02947998,0.0019407272,-0.043182373,-0.004863739,0.01473999,-0.0073661804,0.010856628,-0.0039787292,0.015136719,-0.015701294,-0.059906006,-0.011291504,0.025802612,0.033416748,-0.04650879,0.024627686,-0.016357422,-0.017974854,-0.016601562,0.035705566,0.024612427,0.01335144,0.0039100647,0.03274536,-0.019760132,0.022857666,-0.013893127,0.004737854,-0.00033831596,-0.009941101,0.021911621,-0.025970459,-0.013664246,0.022857666,-0.012786865,-0.010894775,-0.019546509,-0.05831909,-0.00008869171,-0.029968262,0.03652954,0.028427124,0.036499023,-0.02130127,0.016601562,0.016571045,0.003791809,-0.0039596558,0.00066804886,-0.014030457,-0.0070266724,0.05001831,0.02708435,-0.011238098,-0.020431519,-0.008422852,-0.0077323914,-0.035583496,0.0023345947,-0.024475098,-0.003929138,0.00015163422,-0.00020635128,-0.043762207,0.0038394928,-0.007259369,-0.032043457,-0.006034851,0.002275467,0.008377075,0.0010614395,-0.017166138,0.024383545,0.021621704,-0.007205963,0.0071487427,0.030212402,-0.019104004,-0.01033783,0.026123047,-0.011474609,0.01083374,-0.0014925003,-0.03491211,-0.0012044907,0.005657196,-0.050628662,0.00047898293,0.008308411,-0.011405945,-0.018188477,-0.013549805,-0.05130005,0.0046157837,-0.024780273,-0.008399963,-0.015342712,0.0051612854,0.035980225,0.005012512,0.035125732,-0.010017395,-0.024673462,-0.014923096,0.017837524,0.008590698,0.0013713837,0.02520752,0.016342163,-0.0064201355,-0.014732361,0.008338928,-0.0025177002,-0.0071792603,-0.020080566,0.012908936,-0.009544373,-0.006099701,-0.014961243,-0.015914917,-0.037078857,0.009216309,0.095458984,-0.014320374,-0.004638672,-0.009613037,-0.030853271,0.007511139,0.040863037,-0.037322998,0.008056641,-0.017715454,-0.0013227463,-0.024246216,0.022003174,0.0009069443,0.039276123,-0.046539307,-0.044647217,0.010345459,0.007106781,-0.01399231,-0.056610107,-0.029846191,-0.054992676,0.006111145,0.008987427,-0.03555298,0.00868988,-0.0016078949,-0.024627686,-0.07421875,-0.0036087036,0.028747559,0.0035629272,0.025482178,-0.0019721985,0.012550354,0.015655518,0.007896423,-0.0043525696,0.013786316,0.006362915,-0.0063285828,-0.024887085,0.035583496,-0.017730713,-0.030273438,0.025054932,0.009147644,0.016342163,-0.017562866,0.011924744,-0.012130737,0.010696411,-0.0067253113,0.024810791,-0.02168274,-0.010551453,0.05355835,-0.059417725,0.015220642,0.014579773,0.018920898,0.021133423,0.019073486,0.014953613,-0.038635254,-0.014579773,0.0054359436,0.037322998,0.04324341,-0.027908325,0.032684326,0.0071792603,-0.0025501251,0.020950317,-0.012481689,0.0012636185,-0.053619385,-0.02456665,0.0017356873,0.020050049,0.006023407,-0.0118255615,0.008140564,-0.0022792816,-0.012550354,-0.0038013458,-0.012718201,-0.020401001,-0.010063171,0.005657196,-0.003189087,0.00071668625,-0.020507812,0.026565552,0.026611328,0.03793335,0.025650024,-0.027053833,-0.019515991,0.032165527,-0.00793457,0.004627228,0.028060913,0.019424438,0.000095427036,0.03277588,0.025009155,-0.035003662,0.007499695,-0.024429321,-0.00983429,0.010749817,-0.011772156,0.004722595,-0.0109939575,-0.0035095215,0.0027866364,-0.034301758,-0.015716553,-0.05001831,-0.033447266,-0.0003964901,0.016723633,0.01184082,-0.0001218915,-0.017318726,0.0077323914,-0.011558533,0.025512695,0.010635376,-0.015144348,0.027130127,0.027511597,-0.015525818,-0.029907227,0.0020446777,-0.016296387,-0.0032424927,0.013244629,-0.025039673,0.036712646,0.05178833,0.024215698,0.0047950745,0.018829346,0.028778076,0.0029296875,0.0053634644,-0.0005283356,0.04071045,-0.011474609,0.016662598,-0.044189453,0.02520752,0.026809692,0.0034313202,-0.006664276,-0.014389038,-0.002840042,0.05429077,0.0051078796,-0.0014753342,0.011383057,-0.011833191,0.011520386,-0.0041656494,0.010887146,-0.017288208,-0.033721924,-0.020263672,0.029922485,-0.017242432,-0.008201599,0.019378662,-0.027862549,0.032318115,-0.02507019,-0.002073288,0.03515625,-0.007904053,-0.019744873,-0.028152466,0.00390625,-0.025131226,-0.04537964,-0.0024738312,0.018707275,0.03262329,0.012329102,0.009681702,0.0030612946,-0.027175903,0.024124146,0.00080156326,-0.020874023,-0.0009665489,-0.021514893,0.04168701,-0.031433105,0.06591797,0.04284668,-0.000085532665,0.06048584,0.028182983,0.043884277,-0.016220093,0.030334473,-0.024627686,0.019424438,-0.05419922,0.011024475,0.017196655,0.0340271,-0.018127441,0.017471313,0.0045433044,0.022735596,-0.029037476,0.017608643,0.050323486,0.020401001,0.005012512,0.017089844,-0.0007123947,-0.021484375,-0.008224487,-0.028869629,0.046295166,0.011711121,0.030029297,0.019363403,0.010902405,-0.0014791489,0.0034980774,-0.028747559,-0.026000977,0.072387695,0.042999268,-0.044311523,-0.019226074,-0.014717102,-0.008644104,-0.021133423,-0.010971069,0.008888245,0.009811401,0.008094788,-0.03189087,-0.0003080368,-0.024139404,0.0022449493,0.032073975,0.02407837,-0.025848389,0.024459839,0.01423645,0.02243042,0.028060913,-0.0025348663,0.00422287,-0.008766174,-0.03390503,0.024765015,0.034484863,-0.02229309,-0.0046195984,0.009857178,-0.010986328,0.039093018,0.021972656,-0.035339355,-0.0138549805,0.030395508,0.023956299,0.0043754578,0.050079346,0.028640747,0.02470398,0.04559326,0.022201538,0.026687622,-0.027648926,0.018722534,-0.004787445,0.003730774,-0.014274597,0.030593872,0.015083313,-0.006893158,0.017074585,-0.027389526,0.013870239,0.019073486,0.021499634,-0.012565613,-0.008850098,-0.019485474,0.042114258,-0.009979248,0.002866745,-0.0030441284,-0.0035896301,0.021011353,0.0074501038,0.005092621,-0.017990112,0.027145386,0.017166138,-0.011657715,-0.017669678,0.042297363,-0.040039062,0.027053833,-0.006046295,-0.0059051514,-0.021408081,0.015975952,0.001496315,0.014877319,-0.0037441254,-0.0012664795,-0.0065727234,-0.006500244,0.020828247,0.002658844,0.011810303,-0.022537231,-0.014175415,-0.014595032,0.026519775,-0.0010519028,-0.004753113,0.0056037903,-0.006752014,-0.0012683868,0.0010538101,-0.03366089,-0.014450073,0.018234253,-0.05227661,0.033813477,0.020339966,0.00025320053,0.034851074,-0.011802673,0.0077934265,0.0016937256,0.005672455,0.019729614,0.0033054352,-0.022140503,0.009735107,-0.0060157776,0.051361084,0.030197144,0.0023536682,0.028747559,0.0074806213,-0.025634766,0.003326416,0.006095886,0.030960083,0.009468079,-0.016967773,0.005634308,0.029434204,-0.036987305,-0.03857422,-0.010292053,-0.027389526,-0.0129470825,-0.026565552,0.018981934,-0.00642395,0.036621094,0.04260254,0.018661499,-0.04272461,0.053710938,-0.002506256,0.0501709,-0.0046195984,-0.004917145,0.04159546,0.020614624,0.030532837,0.01360321,0.0021648407,-0.041229248,-0.0033626556,0.007648468,0.023254395,0.016311646,-0.003250122,0.0012598038,0.02947998,-0.015579224,0.043701172,0.0020599365,-0.013694763,0.020614624,-0.009483337,-0.026046753,-0.014923096,-0.014640808,0.014854431,0.043823242,-0.0077934265,-0.015655518,-0.02243042,-0.022323608,0.016464233,-0.015899658,0.0231781,0.016723633,-0.024627686,0.023880005,-0.03491211,0.006401062,-0.010475159,0.026168823,-0.07128906,-0.019012451,0.005203247,0.010498047,-0.03479004,0.031951904,0.043548584,0.0063095093,-0.011108398,0.046569824,-0.010147095,0.059539795,-0.0184021,0.024429321,0.035247803,0.009056091,-0.0050811768,0.011817932,0.025604248,-0.037322998,0.015579224,0.027770996,-0.017959595,0.016708374,-0.0105896,0.003578186,-0.012619019,0.0014486313,-0.0028896332,0.013450623,0.008895874,-0.014595032,-0.00032114983,0.0413208,-0.0076179504,0.008476257,0.00061941147,-0.017364502,0.037322998,0.040283203,0.017166138,-0.028457642,0.0012578964,0.006290436,-0.017547607,-0.02609253,-0.009178162,0.00029969215,-0.033203125,-0.00018072128,0.023223877,0.021331787,0.014533997,-0.011398315,-0.017715454,0.004371643,0.008682251,0.02078247,0.008331299,-0.011497498,0.02734375,-0.029632568,-0.018447876,-0.0005350113,-0.0036201477,0.02381897,0.036712646,-0.014816284,-0.036712646,0.026123047,-0.017364502,0.029037476,0.015640259,0.00819397,0.025375366,-0.019042969,0.0044174194,-0.008872986,0.027938843,-0.018859863,-0.026565552,-0.033050537,0.012565613,0.026123047,0.00017106533,-0.008224487,0.019729614,0.022262573,0.01209259,0.034118652,0.006629944,0.031082153,0.029556274,-0.013046265,-0.02494812,0.0016479492,-0.018707275,-0.017669678,0.021484375,-0.017303467,-0.009239197,0.02331543,0.024383545,-0.00012302399,0.0014429092,-0.006664276,-0.0039901733,-0.01638794,0.015220642,-0.02079773,0.017303467,-0.030715942,0.0036449432,0.010559082,0.00094270706,-0.026168823,-0.008934021,0.016662598,-0.01979065,-0.054534912,0.007980347,-0.011634827,0.0066223145,-0.019363403,-0.008232117,-0.013954163,0.01789856,-0.015777588,-0.008163452,0.007335663,0.038360596,-0.006542206,-0.0016050339,0.016723633,-0.025802612,-0.014884949,-0.018722534,-0.005622864,-0.011169434,0.03289795,0.011871338,0.007888794,0.021865845,-0.016296387,0.013282776,-0.004901886,-0.016647339,-0.0098724365,-0.025970459,-0.009712219,0.01979065,0.0043678284,-0.012512207,0.010543823,0.01737976,-0.019607544,-0.021270752,0.034240723,0.031051636,0.021621704,0.027648926,0.01461792,0.013290405,-0.024993896,0.024871826,-0.0099487305,0.028961182,0.00466156,-0.007411957,-0.014320374,0.012527466,-0.004196167,0.020828247,-0.019439697,0.019622803,0.020874023,0.04244995,0.019317627,0.010826111,-0.0005660057,-0.01524353,-0.015281677,0.00028824806,0.046691895,-0.011764526,0.019515991,0.036254883,0.008049011,-0.034332275,-0.016342163,0.0059547424,0.0022792816,-0.04220581,0.0057792664,-0.015342712,0.021560669,-0.0038013458,0.0070533752,-0.014335632,0.008277893,0.011039734,-0.036834717,-0.026290894,0.031555176,0.021881104,-0.008560181,-0.008613586,-0.0087890625,0.00092840195,0.0037593842,-0.009742737,-0.033966064,-0.014556885,-0.00333786,-0.01360321,0.027648926,0.0064811707,-0.019241333,-0.010276794,0.010421753,-0.0000667572,-0.018432617,0.0010566711,-0.014411926,-0.033569336,0.0059547424,0.014297485,-0.010147095,-0.018417358,0.0038871765,0.003900528,-0.01008606,-0.03024292,0.02468872,-0.018035889,0.037719727,-0.006816864,-0.027389526,0.025817871,-0.017288208,0.022994995,-0.02545166,-0.033355713,-0.014572144,0.0024318695,0.024917603,-0.01309967,-0.02406311,0.007701874,-0.012878418,-0.02810669,-0.007762909,-0.014480591,-0.005382538,-0.018081665,0.043029785,-0.00806427,-0.030517578,0.02456665,-0.002544403,-0.0026073456,0.0053749084,0.012840271,0.0010566711,0.0033054352,-0.012840271,-0.014213562,-0.009048462,-0.024459839,0.006099701,-0.017913818,-0.00080394745,0.016220093,0.0143966675,0.03451538,0.022460938,0.030975342,0.010070801,-0.0005226135,0.037200928,0.037261963,0.031051636,0.0004682541,-0.03378296,-0.009567261,-0.0036849976,-0.001660347,-0.0070877075,-0.004966736,-0.011657715,-0.027008057,0.015975952,-0.004589081,0.0051193237,0.012565613,0.0017843246,-0.022872925,0.035949707,-0.03201294,-0.030761719,-0.01449585,-0.016662598,0.031036377,0.008110046,0.01763916,-0.0034561157,-0.02494812,0.015380859,0.05065918,-0.008422852,-0.03363037,-0.014312744,0.027130127,0.0026550293,0.010543823,0.017105103,-0.019897461,-0.017944336,-0.008056641,-0.022491455,0.018295288,-0.009925842,0.020812988,0.0135269165,-0.01889038,-0.00063943863,0.037109375,-0.017303467,0.00504303,0.0022830963,-0.0055770874,0.048309326,0.04446411,0.0024433136,0.023635864,0.00869751,-0.049621582,0.030776978,0.0033454895,0.019592285,-0.003944397,-0.018356323,-0.055786133,-0.00573349,-0.01550293,-0.0037059784],"createdAt":"2026-04-18T18:48:29.406Z","updatedAt":"2026-04-29T04:33:44.500Z","lastSeenAt":"2026-04-29T04:33:44.500Z","tsv":"'/api/v1/mortgages/87':30 '0.02':105,133 '000':124 '20':123 '6':129 '87':71 'USDC micropayment API' 'access':165 'across':108 'actual':210 'addit':191 'address':154 'advertis':102,164 'api':47,110,158,177 'appear':62 'avail':85 'base':5,18,55,125,156 'base-network' 'broad':40 'call':9,22 'catalog':41,111 'challeng':97,115 'connect':186 'consist':135 'content':192 'crawl':86 'data':2,15,68,207 'decim':130 'descript':203 'doc':176 'document':82,171 'endpoint':3,16,28,61,89,118,209,213 'entir':219 'equal':132 'exact':74,148 'extrem':173 'flat':104 'gate':167 'home loan API' 'id':70 'infer':218 'input':78 'key':159 'limit':162 'live':91 'lowpaymentfee' 'lowpaymentfee.com':35 'made':144 'materi':87 'maxamountrequir':121 'micropay':170 'mortgag':1,14,66,206 'mortgage API' 'mortgage data' 'mortgage-data' 'mortgage-rel':65 'must':216 'network':56 'no-api-key' 'offer':38 'openapi':196 'page':181 'paramet':79 'part':32 'path':223 'pay':7,20,44 'pay-per-cal':6,19 'pay-per-request':43 'payment':142 'per':8,21,45,106 'platform':36,101 'post':99 'price':141,178 'prompt':188 'protocol':52 'pure':168 'purpos':215 'rate':161 'readm':180 'real estate finance API' 'relat':67 'render':183 'request':46,107 'request/response':199 'resourc':69 'respons':75 'return':93,211 'schema':76,200 'scheme':149 'serv':64 'settl':48 'show':119 'site':138 'spars':174 'spec':197 'specif':60 'specifi':152 'state':140 'though':72 'unit':126 'url':222 'usd':134 'usdc':13,26,58,128 'usdc-settlement' 'use':57 'valid':95 'via':10,23,49,145 'wallet':153,187 'x402':11,24,51,96,114,147 'x402 mortgage' 'x402-payment'","prices":[{"id":"dd19970d-b262-4503-b850-953960ffaf07","listingId":"177b8c65-cc2e-44a3-8cc8-09bb3b929fa9","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/87","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:48:29.406Z"}],"sources":[{"listingId":"177b8c65-cc2e-44a3-8cc8-09bb3b929fa9","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/mortgages/87","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:48:29.406Z","lastSeenAt":"2026-04-29T04:33:44.500Z"}],"details":{"listingId":"177b8c65-cc2e-44a3-8cc8-09bb3b929fa9","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/mortgages/87 \\\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 platform advertises $0.02 per request with no API keys, no rate limits, and instant access on the Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The x402 challenge shows maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base","source_url":"https://lowpaymentfee.com/api/v1/mortgages/87"}],"useCases":["Retrieving mortgage-related data for a specific resource (ID 87) via a single paid API call","Integrating pay-per-use mortgage information into agent workflows without API key management","Programmatic access to mortgage data settled on Base L2 with USDC"],"bestFor":["Agents or apps needing on-demand mortgage data without subscription commitments","Developers experimenting with x402 micropayment-gated APIs","Crypto-native workflows that can settle USDC on Base"],"notFor":["Users who need detailed documentation or guaranteed response schemas before integrating","Bulk mortgage data retrieval where per-call pricing would be cost-inefficient","Users without access to USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:12.636Z"},"updatedAt":"2026-04-29T04:33:44.500Z"}}