{"id":"a0d4a1c1-c3a5-4aa7-b568-d7ef27390e88","shortId":"BsRPaB","kind":"x402","title":"Transaction receipt endpoint on Base, paid per-call via x402 with USDC.","tagline":"Transaction receipt endpoint on Base, paid per-call via x402 with USDC.","description":"This endpoint at lowpaymentfee.com provides access to a transaction receipt (transaction ID 85) behind an x402 paywall. The broader lowpaymentfee.com platform advertises a suite of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all priced at $0.02 per request, settled in USDC on the Base network with no API keys or rate limits required.\n\nThe specific endpoint `/api/v1/transactions/85/receipt` returns a 402 challenge requesting up to 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02 per call. Payment is made via the x402 exact scheme by including an X-PAYMENT header. The response MIME type is application/json. The endpoint accepts POST requests and is marked as discoverable.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The actual content returned by this receipt endpoint (field names, structure) is unknown. The platform appears to be a demonstration or early-stage x402 API marketplace rather than a mature production service.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","transaction-receipt","per-call-pricing","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["transaction receipt API","x402 paid endpoint","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee","crypto payment API"],"warnings":["No OpenAPI or schema documentation available — request body and response structure are completely unknown","All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no content","This is a single transaction-specific receipt endpoint (transaction 85); unclear if it generalizes","Platform appears to be early-stage or a demonstration; production readiness is uncertain"],"endpointUrl":"https://lowpaymentfee.com/api/v1/transactions/85/receipt","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/transactions/85/receipt","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (returns a valid 402 x402 challenge), but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The docs pages are empty beyond a wallet-connect prompt. The specific purpose of this receipt endpoint is unclear, and the broader platform appears to be a demo or early-stage project.","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":"2026-04-19T13:54:07.983Z","embedding":[-0.026657104,-0.03463745,0.027923584,0.014701843,-0.0043411255,-0.010917664,-0.015068054,0.034698486,0.04473877,-0.0657959,0.022872925,-0.030761719,-0.021377563,-0.042266846,-0.013793945,0.016189575,0.0062332153,0.022888184,-0.053375244,0.037963867,0.030944824,-0.037322998,-0.022323608,0.015472412,-0.012626648,-0.02319336,-0.03024292,-0.014518738,-0.048980713,-0.036376953,0.055114746,-0.014129639,-0.018005371,0.010902405,-0.0036754608,0.01763916,0.0048065186,0.008377075,0.037200928,-0.021865845,-0.009681702,-0.038085938,0.00080537796,-0.0018625259,-0.044952393,0.011711121,-0.00030183792,-0.011558533,0.022262573,-0.0076179504,-0.05657959,-0.009361267,0.0049819946,0.018707275,-0.0074157715,-0.0041770935,-0.0050468445,0.014251709,0.018249512,-0.0018415451,-0.0063476562,-0.060577393,-0.0073051453,-0.030059814,-0.0012350082,0.04876709,-0.021362305,0.061523438,0.022354126,0.049713135,0.03857422,0.041809082,0.03881836,0.018554688,0.010673523,-0.013305664,-0.0018587112,0.0340271,-0.044891357,-0.020980835,0.0065307617,-0.031066895,-0.07006836,-0.0015106201,-0.012542725,-0.042266846,-0.025894165,-0.012550354,-0.012611389,0.027175903,-0.06335449,0.009414673,0.021148682,0.019638062,-0.0017194748,-0.051574707,-0.029953003,-0.0023593903,-0.015129089,-0.001036644,-0.022064209,-0.035583496,0.040008545,-0.0014457703,0.029846191,0.02961731,-0.010002136,0.020767212,-0.006511688,0.0054512024,-0.015258789,0.033843994,0.022781372,-0.035583496,0.009002686,-0.0038776398,-0.021011353,0.012557983,-0.02168274,0.035339355,-0.053619385,0.059326172,0.0038280487,-0.010215759,-0.0037441254,-0.037597656,-0.030838013,0.023422241,-0.028625488,0.0066833496,0.064208984,0.030136108,0.0016174316,-0.013999939,-0.025482178,0.0059890747,-0.009727478,-0.012390137,-0.029556274,-0.037750244,0.025970459,-0.032684326,0.0057029724,0.04421997,-0.08129883,0.009475708,-0.038269043,-0.0062789917,-0.019317627,-0.015640259,0.0013046265,-0.012527466,-0.025741577,-0.027359009,-0.012809753,-0.027740479,0.00081062317,0.053253174,-0.00014829636,0.021987915,-0.016799927,0.032440186,0.021820068,0.027648926,0.014701843,0.019012451,-0.0017213821,-0.076538086,-0.08428955,0.008010864,0.022628784,-0.031799316,-0.045562744,0.0012512207,-0.04043579,-0.07788086,-0.0063285828,0.012649536,0.007385254,-0.047943115,0.008918762,-0.025939941,-0.0014066696,-0.031036377,-0.041137695,-0.02633667,-0.04083252,0.06958008,0.03604126,0.029434204,-0.011436462,-0.0031375885,0.03152466,0.022888184,0.0017604828,-0.026657104,-0.0056152344,-0.016464233,0.028686523,-0.015571594,0.0107421875,-0.032165527,0.022949219,0.08477783,-0.012306213,-0.045043945,-0.006614685,-0.036712646,-0.024734497,-0.017318726,0.027389526,0.0041007996,-0.013664246,0.028060913,-0.042114258,-0.0056495667,0.02722168,0.03567505,0.010238647,0.058258057,0.017944336,-0.017227173,0.011390686,0.029037476,-0.013381958,0.056640625,0.024658203,0.01637268,-0.025115967,-0.058258057,0.00053834915,0.021057129,-0.030685425,-0.0057296753,-0.011940002,0.047607422,-0.001991272,-0.015823364,0.031036377,-0.001950264,-0.0112838745,-0.019760132,0.00957489,0.024475098,0.017044067,-0.021057129,-0.056488037,-0.090148926,0.08203125,0.0413208,0.02243042,0.009521484,-0.01727295,-0.016021729,-0.021072388,-0.06744385,0.039245605,0.056427002,-0.0019569397,-0.019760132,0.051483154,-0.015350342,-0.038848877,-0.00447464,-0.036376953,-0.029281616,-0.0021743774,-0.0055236816,-0.036376953,0.012565613,-0.015350342,0.003293991,0.058807373,0.01777649,-0.048339844,-0.015701294,-0.022140503,0.00044679642,-0.0141067505,-0.0069503784,0.0058784485,0.02798462,-0.00065517426,0.008087158,0.0036525726,0.03466797,0.009162903,-0.020690918,0.013000488,-0.0010995865,-0.018707275,0.010391235,0.0035076141,-0.054504395,0.008155823,0.0057525635,0.06750488,-0.06188965,0.047058105,-0.026870728,0.0026435852,0.05267334,-0.0035209656,-0.046569824,0.016845703,0.026184082,0.008758545,0.01486969,0.021957397,-0.0022678375,-0.017242432,0.068725586,-0.012413025,-0.008026123,0.005809784,0.011795044,0.034851074,-0.022079468,-0.0413208,-0.057159424,0.024612427,-0.030258179,0.02482605,-0.004234314,0.04510498,-0.017044067,-0.013496399,-0.03515625,0.00094652176,-0.009414673,0.0181427,-0.03186035,-0.0065956116,-0.035583496,-0.025222778,0.040771484,0.007801056,-0.010276794,-0.0004181862,0.06719971,0.028579712,-0.0057411194,-0.03265381,-0.027038574,-0.024856567,-0.0062332153,0.024887085,0.0109939575,0.015792847,0.038970947,-0.021987915,0.006378174,0.025482178,-0.009361267,0.023483276,-0.0044174194,0.0032863617,-0.064819336,-0.022598267,-0.016937256,-0.06298828,0.031021118,0.013267517,0.010185242,0.06286621,0.0107040405,-0.03555298,-0.030441284,0.04385376,-0.051696777,0.013313293,0.04638672,-0.018539429,-0.007949829,-0.011398315,-0.010604858,0.01234436,0.037384033,0.01713562,0.026687622,0.059753418,0.03378296,-0.0074043274,0.027618408,0.019073486,0.022094727,-0.00047254562,-0.008781433,-0.02696228,-0.032440186,0.028076172,-0.024795532,-0.03024292,-0.04949951,0.04437256,0.032928467,0.048706055,0.0262146,0.029434204,0.038635254,0.032348633,0.014297485,0.004535675,-0.023223877,-0.029922485,-0.021133423,0.02017212,-0.03237915,-0.0029678345,0.0005812645,0.013648987,0.008514404,0.010795593,-0.027404785,0.03050232,-0.01914978,-0.0118255615,0.030853271,0.021270752,0.041137695,0.03555298,-0.030258179,0.0043563843,0.022827148,-0.04989624,0.026428223,0.025283813,-0.009346008,-0.010314941,-0.045928955,-0.035247803,0.0058555603,-0.019485474,-0.045196533,0.015220642,0.0042800903,0.026306152,0.02810669,-0.044525146,-0.03869629,0.022201538,-0.012435913,-0.031707764,0.007904053,-0.049957275,0.025619507,0.029693604,-0.04006958,0.030059814,0.0013427734,0.000790596,-0.012916565,-0.0032958984,-0.005088806,-0.0051574707,-0.03564453,0.032440186,-0.0018901825,0.010383606,0.014717102,0.014732361,0.020050049,0.048339844,0.035186768,0.021530151,-0.02218628,-0.052856445,0.02003479,-0.04046631,-0.011871338,0.037506104,-0.031677246,0.015701294,0.011207581,-0.019058228,-0.039855957,0.0037250519,-0.024002075,0.0045166016,0.018920898,-0.04083252,-0.0020599365,-0.05718994,-0.020355225,-0.018814087,0.059387207,0.005718231,-0.001001358,-0.070129395,0.007610321,0.027648926,0.010627747,0.016281128,-0.014442444,-0.011230469,-0.014778137,-0.016174316,-0.025268555,-0.013458252,0.026229858,0.0032958984,-0.0119018555,0.01828003,0.016479492,-0.007949829,0.022827148,-0.00843811,0.031036377,-0.014732361,-0.003200531,0.011436462,0.034973145,0.010620117,-0.037597656,-0.042785645,0.035369873,-0.025344849,0.032165527,-0.03704834,-0.01676941,0.0011148453,0.0013942719,0.016235352,-0.0050239563,-0.0036010742,-0.00024414062,-0.033935547,-0.050720215,0.037231445,-0.007221222,0.03515625,0.030395508,0.017578125,0.032592773,-0.010055542,0.010612488,0.0034427643,-0.038604736,-0.027816772,-0.028656006,-0.032226562,-0.018737793,0.0059013367,-0.030166626,0.015602112,-0.008522034,0.011650085,-0.0071258545,-0.020462036,0.05911255,-0.00058174133,0.013145447,0.009613037,0.009063721,0.018112183,0.017501831,0.028213501,-0.058807373,0.05026245,-0.010505676,0.0043411255,-0.013244629,0.01890564,0.030258179,-0.034973145,0.024032593,-0.0047950745,-0.018051147,-0.0075912476,0.00072193146,-0.003112793,0.0034561157,0.008354187,-0.058441162,0.03265381,-0.0019798279,-0.025314331,-0.043823242,0.034454346,0.024780273,-0.045135498,0.018981934,0.022827148,0.041900635,-0.002090454,0.007461548,-0.0037117004,0.044830322,0.044708252,0.002729416,-0.009773254,0.044952393,-0.011566162,0.036621094,-0.00283432,-0.004005432,0.008880615,0.00068330765,0.029800415,0.026321411,0.011734009,0.0030975342,-0.049560547,-0.012275696,0.0033607483,-0.016708374,0.024871826,0.0052452087,0.01638794,-0.014312744,0.025650024,0.02255249,-0.026489258,-0.0078125,0.008911133,0.050598145,-0.012825012,-0.008178711,0.0074157715,0.022491455,0.0126571655,-0.059020996,-0.008598328,-0.004131317,0.019134521,-0.0037384033,-0.046447754,-0.027557373,-0.006275177,0.036468506,0.0063705444,0.00566864,0.03463745,0.011917114,-0.0014743805,0.022781372,0.009048462,-0.003238678,-0.0006055832,-0.043151855,-0.019515991,0.003522873,0.016540527,-0.024383545,0.025177002,0.0014457703,-0.009666443,0.0022201538,-0.03378296,0.014533997,-0.010040283,-0.001581192,0.04119873,-0.006629944,0.008659363,0.0034751892,-0.036010742,0.008384705,0.008964539,0.018554688,-0.024673462,0.027816772,-0.019989014,-0.0051002502,-0.015670776,0.007247925,0.012870789,0.011688232,0.02670288,0.029174805,-0.028549194,0.050323486,-0.011802673,0.018554688,0.008766174,-0.019256592,-0.0127334595,-0.0317688,-0.014732361,0.028945923,-0.00018715858,-0.0057792664,-0.027511597,-0.064086914,-0.020523071,-0.055999756,0.023147583,0.011940002,0.05117798,-0.014297485,0.008682251,-0.021575928,0.007118225,0.006866455,0.0056915283,-0.016921997,0.045532227,0.01637268,0.023254395,-0.0011587143,-0.021133423,-0.030654907,-0.004852295,-0.057556152,-0.04083252,0.0049057007,0.03439331,-0.0061187744,-0.009986877,-0.03439331,-0.021652222,-0.0023002625,-0.017211914,0.014602661,-0.010292053,0.018218994,0.0003554821,0.0076828003,0.0033073425,0.021652222,-0.021484375,0.03149414,0.025604248,-0.004272461,-0.029556274,0.02407837,0.011428833,0.010070801,-0.016174316,-0.015853882,0.0037078857,-0.023147583,-0.041931152,0.026153564,-0.005191803,-0.011978149,-0.024932861,0.016525269,-0.0446167,0.0019798279,-0.052856445,-0.013961792,0.023925781,0.015930176,0.01399231,-0.0070991516,0.006477356,-0.0006227493,0.0030212402,-0.045074463,0.021118164,0.0102005005,0.013305664,0.008293152,0.05999756,0.0064888,-0.015388489,-0.0054893494,-0.038360596,0.005756378,-0.025726318,0.02810669,-0.006549835,0.0033740997,-0.012893677,-0.009681702,-0.04864502,0.02003479,0.06298828,-0.0049095154,-0.014289856,-0.010398865,0.004295349,0.024017334,0.036132812,-0.036193848,0.011222839,-0.014289856,0.015144348,-0.019943237,0.009544373,-0.012283325,0.026947021,-0.026275635,-0.04812622,0.00067567825,-0.034301758,-0.005168915,-0.06439209,-0.025558472,-0.042938232,-0.0006699562,0.023071289,-0.022094727,0.015296936,0.029174805,-0.023040771,-0.087646484,0.0037593842,0.039489746,-0.0056419373,0.025360107,0.0066223145,0.01977539,0.021484375,-0.019927979,-0.016983032,0.0019445419,-0.029327393,-0.0044517517,-0.028366089,0.021652222,-0.010185242,-0.0019836426,0.012702942,-0.0006227493,0.016983032,-0.00687027,-0.008583069,-0.02696228,0.0040512085,-0.013648987,0.014846802,-0.0137786865,-0.0098724365,0.043121338,-0.05947876,0.030960083,0.02192688,0.012565613,0.0041122437,0.04559326,0.03933716,-0.024963379,0.013206482,0.019699097,0.022842407,0.056274414,-0.028167725,0.029907227,0.013961792,-0.0018167496,-0.0085372925,-0.0075149536,-0.0023918152,-0.03375244,-0.007663727,0.028442383,-0.0076904297,-0.00957489,-0.013702393,-0.0064811707,0.010696411,0.025726318,-0.009376526,-0.022445679,-0.0206604,-0.029922485,0.004234314,0.0055236816,-0.003490448,-0.007106781,0.022598267,0.041931152,0.045410156,0.016921997,-0.017822266,0.0256958,0.03414917,-0.012069702,-0.021728516,0.019805908,0.0067100525,0.014831543,0.018493652,0.022018433,-0.029403687,-0.02507019,-0.01525116,-0.0061302185,0.01033783,-0.012107849,0.014404297,0.005180359,0.008529663,0.008407593,-0.024429321,0.0013160706,-0.024414062,-0.04510498,-0.008979797,-0.0043411255,0.031173706,-0.00869751,-0.024383545,0.03201294,-0.022354126,0.044189453,0.0022735596,-0.027069092,0.022979736,0.039154053,0.02407837,-0.02508545,-0.0013170242,-0.007106781,-0.029067993,-0.008659363,-0.024505615,0.04058838,0.004173279,0.0014457703,0.00687027,-0.016860962,0.024215698,-0.02684021,0.0073776245,-0.015625,0.026290894,-0.01386261,0.055999756,-0.044006348,0.028244019,0.0231781,0.0040893555,0.00856781,-0.0012664795,-0.028778076,0.026260376,0.012260437,-0.012702942,0.0287323,0.0074882507,0.040374756,-0.020614624,-0.01789856,-0.012413025,-0.015991211,-0.027511597,0.006690979,-0.015914917,-0.009437561,0.015235901,-0.025512695,0.03515625,-0.018417358,0.010635376,-0.011260986,0.0059509277,-0.0048561096,-0.0043525696,-0.011383057,-0.015327454,-0.01953125,-0.0034713745,0.001200676,0.06640625,0.01966858,0.02722168,0.02722168,0.011039734,0.01360321,-0.041412354,-0.036193848,0.007129669,-0.009162903,-0.0019798279,-0.017150879,0.052978516,0.059814453,-0.0013914108,0.030685425,0.011146545,0.027770996,0.006587982,0.02645874,-0.020217896,0.013458252,-0.010757446,0.030853271,-0.014587402,0.032226562,-0.016311646,0.025177002,0.011352539,0.019302368,-0.014030457,0.017929077,0.08319092,0.008552551,-0.012161255,0.014701843,0.00047659874,-0.028335571,-0.015037537,-0.030578613,0.043060303,0.017730713,0.029281616,0.06021118,0.012023926,0.024353027,0.017578125,-0.019241333,-0.013290405,0.054595947,0.02268982,-0.0016117096,-0.020446777,-0.021469116,0.012466431,-0.03225708,-0.012046814,-0.00069856644,-0.02583313,-0.0028457642,-0.00032162666,-0.008140564,-0.008514404,0.023468018,0.015342712,0.026306152,-0.012794495,0.03475952,0.01386261,0.0022335052,0.011230469,0.0049858093,0.019729614,-0.031280518,-0.020233154,0.018829346,0.025466919,-0.011436462,-0.028625488,0.029907227,0.00504303,0.039764404,0.034118652,-0.029510498,-0.00077438354,0.017364502,0.0051727295,0.0009803772,0.058044434,0.024810791,0.009262085,0.039642334,0.030578613,0.032562256,-0.029067993,0.016174316,-0.014823914,0.009132385,-0.025390625,0.014122009,0.012870789,-0.013870239,0.048095703,-0.004611969,-0.0019607544,0.0012226105,0.025024414,0.005203247,-0.0042304993,-0.029022217,0.0020771027,-0.020767212,-0.003490448,0.020645142,-0.007320404,0.013404846,0.0059013367,0.030258179,-0.04473877,0.023345947,0.0008330345,-0.017456055,-0.029022217,0.0124435425,-0.051635742,0.0029277802,-0.00090932846,-0.012290955,-0.042266846,0.011520386,0.010848999,-0.008171082,0.011856079,0.021102905,-0.0026283264,-0.01234436,0.031829834,0.012329102,-0.0053863525,-0.002626419,-0.01184082,0.010177612,0.038757324,0.008468628,-0.011924744,-0.010917664,-0.008491516,0.001121521,-0.009353638,-0.012084961,0.008552551,-0.012023926,-0.019073486,0.020553589,0.031097412,0.0017662048,0.056884766,-0.013420105,-0.006286621,0.008392334,0.031921387,0.001502037,-0.028579712,-0.012138367,0.01586914,-0.028656006,0.052246094,0.040527344,0.008224487,0.030654907,0.0070533752,-0.016433716,-0.0061035156,-0.026275635,0.03314209,-0.008491516,-0.0040779114,-0.006931305,0.016189575,-0.019058228,-0.029129028,-0.0031585693,-0.024032593,0.0004286766,0.00016498566,0.017837524,0.0046463013,0.022888184,0.03970337,0.010948181,-0.022918701,0.05718994,-0.024169922,0.049224854,0.0011720657,-0.016998291,0.052612305,0.039733887,0.06347656,0.0027561188,0.014846802,-0.029464722,0.027801514,0.024093628,0.021560669,0.01260376,0.011566162,-0.010604858,0.034454346,-0.0039024353,0.037994385,-0.0118637085,-0.0051078796,0.021270752,-0.028701782,-0.0107421875,-0.0006661415,-0.010177612,-0.0014209747,0.04937744,-0.040771484,-0.000808239,-0.023269653,-0.0155181885,0.021392822,-0.008605957,-0.008148193,-0.0022735596,-0.013130188,0.023788452,-0.013549805,-0.001709938,0.01626587,0.029846191,-0.04058838,0.005344391,0.023910522,-0.007129669,-0.01309967,0.020767212,0.039367676,0.00016641617,-0.0013303757,0.03643799,-0.026016235,0.05126953,0.007209778,0.03050232,0.01802063,0.015655518,-0.01399231,0.014862061,0.01322937,-0.014259338,0.008628845,0.027359009,-0.020248413,-0.00013566017,-0.0018491745,-0.0036945343,-0.0017633438,-0.0009756088,-0.014755249,0.015129089,-0.006439209,-0.022613525,0.006351471,0.015182495,0.005847931,0.00025081635,0.015365601,-0.0058288574,0.013641357,0.013809204,0.033081055,-0.046081543,-0.002576828,0.00844574,0.006587982,-0.011672974,-0.01828003,-0.012939453,-0.041381836,-0.0015163422,0.013496399,0.0056152344,0.014251709,-0.019134521,-0.016281128,0.019073486,0.011230469,0.013175964,-0.0010852814,-0.000013411045,0.022201538,-0.0335083,0.01108551,-0.006023407,-0.0154953,0.012512207,0.022415161,-0.01687622,-0.020019531,0.014587402,-0.014518738,0.01928711,0.00049829483,0.013938904,0.028442383,-0.0046806335,0.0061149597,0.0041999817,0.020309448,-0.02268982,-0.013885498,-0.0007715225,0.006832123,0.05218506,0.003452301,0.009140015,0.010520935,0.030578613,0.018798828,0.029388428,0.019302368,0.04574585,0.026870728,-0.026519775,-0.003314972,0.005493164,-0.004714966,-0.027069092,0.012138367,-0.023757935,-0.016052246,-0.003873825,0.018844604,0.00096845627,-0.03314209,-0.008621216,-0.0001295805,-0.0039634705,0.015037537,-0.011054993,0.02973938,-0.01626587,-0.006134033,0.015640259,-0.022964478,-0.028335571,-0.022247314,-0.022094727,-0.014381409,-0.05569458,0.0039520264,-0.025054932,0.016738892,-0.01361084,0.005218506,0.0038032532,0.0068206787,0.0038871765,-0.025177002,0.0050697327,0.05065918,0.013717651,0.021438599,0.015258789,-0.026947021,-0.019073486,-0.015380859,0.0016889572,-0.02003479,0.041900635,0.008377075,0.025680542,0.01386261,-0.047821045,-0.009307861,-0.00970459,-0.004562378,-0.0034656525,-0.0013608932,-0.008575439,0.0029468536,0.023254395,0.018798828,-0.007785797,0.041656494,-0.028945923,-0.001663208,0.028320312,0.036499023,0.00058984756,0.046722412,-0.01651001,0.0001103878,-0.036376953,-0.00093364716,-0.005947113,0.0026512146,-0.010482788,0.036315918,-0.0072746277,0.029174805,0.0068855286,-0.01763916,0.016021729,0.021438599,0.018218994,0.014862061,0.020904541,0.023208618,0.019210815,-0.01889038,0.006477356,-0.0074768066,0.048858643,0.025390625,0.001821518,-0.019454956,0.012084961,-0.029129028,0.002735138,0.019622803,-0.02229309,-0.03967285,-0.021865845,-0.032409668,0.019866943,-0.012260437,0.02267456,-0.004814148,0.013572693,-0.0018787384,-0.024551392,-0.035491943,0.024780273,0.006439209,-0.02798462,-0.005657196,0.0040130615,0.020965576,-0.021087646,-0.0105896,-0.044891357,-0.038604736,0.012237549,-0.013381958,0.038635254,-0.002407074,-0.0074806213,-0.0178833,-0.0098724365,-0.01737976,0.026168823,0.01675415,-0.0058631897,-0.009483337,0.008804321,0.04269409,-0.008811951,0.02444458,-0.001964569,0.01977539,-0.00045776367,-0.009307861,0.031555176,-0.017211914,0.025177002,0.001701355,0.0031642914,0.026138306,0.0003273487,0.008621216,-0.04083252,0.0017290115,0.00881958,-0.00082826614,0.039642334,-0.003314972,-0.039154053,-0.004699707,-0.023483276,-0.029327393,0.0035591125,0.015975952,0.017044067,-0.006629944,0.039276123,0.0010480881,-0.013389587,0.0033092499,0.020431519,-0.02407837,-0.0037727356,0.016799927,-0.014472961,-0.0016469955,-0.009757996,-0.014831543,-0.010070801,-0.012565613,0.0013418198,-0.013244629,0.004005432,0.0010280609,0.023391724,0.026351929,0.016708374,0.027770996,0.0023860931,0.013153076,0.020751953,0.013824463,0.030258179,-0.015731812,-0.024490356,-0.0060539246,0.0029125214,-0.026138306,0.022735596,0.003982544,-0.0028533936,-0.03640747,0.006298065,0.009315491,0.026397705,0.0021305084,0.020187378,-0.017044067,-0.022354126,-0.01586914,-0.002576828,-0.034118652,0.018569946,0.037353516,-0.0007472038,0.018035889,0.003692627,-0.025848389,0.0048713684,0.03805542,-0.011100769,-0.026351929,-0.026870728,0.011161804,-0.0014810562,0.006298065,0.007843018,-0.027175903,-0.014732361,0.001996994,-0.01473999,-0.012084961,-0.0096588135,0.012161255,0.006149292,-0.022247314,-0.024383545,0.018661499,-0.0028743744,-0.009529114,-0.0034236908,0.009338379,0.02859497,0.02267456,-0.00868988,-0.0013837814,0.024993896,-0.036590576,0.066101074,-0.019836426,0.02722168,-0.02078247,0.0044555664,-0.05923462,-0.005130768,-0.005958557,-0.012001038],"createdAt":"2026-04-18T19:27:08.228Z","updatedAt":"2026-04-24T00:32:40.268Z","lastSeenAt":"2026-04-24T00:32:40.268Z","tsv":"'/api':155 '/api/v1/transactions/85/receipt':89 '/docs':154 '/pricing':156 '/readme':158 '0.02':68,111 '000':98 '0x8335':103 '20':97 '2913':104 '402':92 '6':107 '85':39 'Base network API' 'USDC micropayment API' 'accept':137 'access':32 'actual':187 'advertis':48 'ai':57 'analyt':56 'api':52,80,211 'appear':201 'application/json':134 'avail':185 'base':5,18,76,99,106 'base-network' 'behind':40 'beyond':146 'broader':45 'call':9,22,113 'categori':53 'challeng':93 'connect':164 'content':188 'crypto payment API' 'data':55 'decim':108 'demonstr':205 'detail':171 'discover':144 'document':145,180 'earli':208 'early-stag':207 'endpoint':3,16,28,88,136,193 'equal':110 'exact':120 'exampl':183 'extrem':151 'field':194 'financ':60 'header':128 'id':38 'includ':54,123 'infrastructur':63 'json-response' 'key':81 'land':148 'learn':59 'limit':84 'lowpaymentfee' 'lowpaymentfee.com':30,46 'machin':58 'made':116 'mark':142 'marketplac':212 'matur':216 'mime':131 'name':195 'network':77 'no-api-key' 'openapi':175 'page':149,159 'paid':6,19 'pay-per-call API' 'payload':184 'payment':114,127 'paywal':43 'per':8,21,69,112 'per-cal':7,20 'per-call-pricing' 'platform':47,200 'post':138 'price':66 'product':217 'prompt':166 'provid':31 'rate':83 'rather':213 'receipt':2,15,36,192 'render':161 'request':70,94,139 'request/response':178 'requir':85 'respons':130 'return':90,189 'schema':179 'scheme':121 'servic':218 'settl':71 'spars':152 'spec':176 'specif':87 'stage':209 'structur':196 'suit':50 'technic':170 'transact':1,14,35,37 'transaction receipt API' 'transaction-receipt' 'type':132 'unit':100 'unknown':198 'usdc':13,26,73,102 'usdc-settlement' 'util':64 'via':10,23,117 'wallet':165 'web3':61 'x':126 'x-payment':125 'x402':11,24,42,119,210 'x402 paid endpoint' 'x402-payment'","prices":[{"id":"e2c7f76e-c169-459f-a6a6-801652a6383d","listingId":"a0d4a1c1-c3a5-4aa7-b568-d7ef27390e88","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/transactions/85/receipt","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:27:08.228Z"}],"sources":[{"listingId":"a0d4a1c1-c3a5-4aa7-b568-d7ef27390e88","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/transactions/85/receipt","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:27:08.228Z","lastSeenAt":"2026-04-24T00:32:40.268Z"}],"details":{"listingId":"a0d4a1c1-c3a5-4aa7-b568-d7ef27390e88","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/transactions/85/receipt\n# Returns 402 with x402 challenge. Include X-PAYMENT header with signed USDC payment to proceed.","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requesting up to 20,000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)","source_url":"https://lowpaymentfee.com/api/v1/transactions/85/receipt"},{"claim":"All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers Data & Analytics, AI & ML, Finance & Web3, and Infrastructure API categories","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only a 'Connect wallet' prompt with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving a transaction receipt for transaction 85 via programmatic x402 payment","Demonstrating x402 protocol integration with USDC on Base","Agent-driven per-call API access without API key management"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that need keyless, pay-per-call API access on Base","Testing USDC micropayment flows"],"notFor":["Production workloads requiring documented request/response schemas","Bulk or high-volume data retrieval (no batch endpoints documented)","Users who need fiat-only payment options"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:35.964Z"},"updatedAt":"2026-04-24T00:32:40.268Z"}}