{"id":"2926492f-a762-4190-b2b5-2d8ed2ad82a0","shortId":"XNZMUR","kind":"x402","title":"Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This x402-enabled endpoint at lowpaymentfee.com provides a \"Premium API Access\" receipt for transaction ID 160. It is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/transactions/160/receipt` accepts POST requests and returns JSON. The x402 challenge confirms it is live, requiring a maximum of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call, paid to address `0x1A2B...85F3` on Base. No API keys or rate limits are advertised; access is gated purely by the x402 micropayment protocol.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the receipt payload actually contains. The platform's landing page lists many other endpoints (sentiment analysis, summarization, geocoding, gas estimates, etc.) at the same $0.02 price point, but without documentation it is unclear what data or functionality each endpoint actually provides.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","transaction-receipt","pay-per-call","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["transaction receipt API","x402 micropayment endpoint","USDC pay-per-call","Base network API","lowpaymentfee","premium API access","402 payment required API"],"warnings":["No documentation available — all doc/API/pricing/README pages render only 'Connect wallet' with no content","No OpenAPI or JSON schema describing request parameters or response format","Unknown what data the transaction receipt actually returns","The endpoint is for a specific transaction ID (160); unclear if other transaction IDs are supported or how they are discovered","Platform lists many endpoints but none have documented behavior"],"endpointUrl":"https://lowpaymentfee.com/api/v1/transactions/160/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/160/receipt","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 no documentation, no OpenAPI schema, no request/response examples, and no explanation of what the receipt contains. The docs pages are all empty wallet-connect prompts. This is 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":"2026-04-19T12:22:02.589Z","embedding":[-0.018875122,-0.03366089,0.034057617,0.009353638,-0.003271103,-0.020874023,-0.008590698,0.036834717,0.06359863,-0.08087158,0.022521973,-0.040252686,-0.027282715,-0.033416748,-0.03375244,0.012649536,-0.004219055,0.02458191,-0.03918457,0.03390503,0.017990112,-0.040771484,-0.029174805,0.024353027,-0.0012512207,-0.024490356,-0.022949219,-0.011260986,-0.04159546,-0.043182373,0.047546387,-0.023132324,-0.017562866,0.015434265,-0.011436462,0.008071899,-0.003627777,0.0074272156,0.032806396,-0.023513794,-0.01108551,-0.043182373,-0.0025539398,-0.007762909,-0.055114746,0.0143966675,0.0021839142,-0.011314392,0.01449585,0.00819397,-0.047027588,-0.0039978027,0.008422852,0.010383606,-0.005004883,-0.005874634,-0.0026798248,-0.0012483597,0.0062828064,0.0036182404,-0.0047721863,-0.07183838,-0.01763916,-0.019821167,-0.006340027,0.055541992,-0.009689331,0.060760498,0.025115967,0.07098389,0.039489746,0.042663574,0.016448975,0.021362305,0.004299164,-0.004070282,-0.0028419495,0.04852295,-0.027679443,-0.022872925,-0.0088272095,-0.020324707,-0.06756592,0.0009365082,-0.019683838,-0.04156494,-0.024154663,0.001996994,-0.020950317,0.033111572,-0.06915283,0.00064992905,0.011016846,0.017547607,0.0020828247,-0.026809692,-0.033447266,0.018569946,-0.015380859,0.011238098,-0.003227234,-0.034851074,0.03604126,-0.0010004044,0.037475586,0.04699707,0.009147644,0.023925781,0.015510559,0.00044345856,-0.03112793,0.024902344,0.028686523,-0.023468018,0.0079956055,-0.0031032562,-0.020904541,0.014511108,-0.029510498,0.020202637,-0.04458618,0.057128906,-0.0033302307,0.00046634674,0.006336212,-0.051727295,-0.03149414,0.017318726,-0.01638794,0.004371643,0.03060913,0.0152282715,0.035614014,-0.025497437,-0.025268555,0.008277893,-0.019699097,-0.0143585205,-0.036834717,-0.030944824,0.024719238,-0.032714844,0.0095825195,0.042541504,-0.08178711,-0.0053253174,-0.052337646,0.007987976,-0.024780273,-0.012763977,0.0033454895,0.006324768,-0.026229858,-0.01524353,-0.01902771,-0.0236969,0.0041046143,0.052642822,-0.0129852295,0.027526855,-0.012420654,0.038208008,0.033569336,0.021591187,0.016220093,0.012329102,0.0047798157,-0.066833496,-0.078186035,0.005012512,0.009246826,-0.028381348,-0.035339355,0.003129959,-0.02784729,-0.07672119,-0.018463135,0.008468628,-0.014099121,-0.04067993,0.009529114,-0.022903442,0.0046195984,-0.026641846,-0.04574585,-0.036895752,-0.030166626,0.05984497,0.034057617,0.02458191,0.020645142,-0.017684937,0.02935791,0.024627686,-0.0016050339,-0.019882202,0.012290955,-0.01184845,0.007286072,-0.0031604767,0.0010757446,-0.033111572,0.022766113,0.072021484,-0.0025997162,-0.05984497,-0.007587433,-0.042877197,-0.02268982,-0.013038635,0.0231781,0.012435913,-0.0031108856,0.04171753,-0.033935547,-0.0042800903,0.031555176,0.03149414,0.0052986145,0.06561279,0.018371582,-0.022659302,0.0234375,0.023147583,-0.03982544,0.054138184,0.02557373,0.011276245,-0.02758789,-0.04916382,0.004901886,0.029632568,-0.030456543,0.005809784,-0.012214661,0.042663574,0.0067863464,0.0019607544,0.036499023,-0.014564514,-0.01991272,-0.022903442,-0.000916481,0.029129028,0.014602661,-0.018707275,-0.04559326,-0.099853516,0.075927734,0.0340271,0.033569336,0.0010519028,0.002040863,-0.01348114,-0.022720337,-0.07696533,0.037200928,0.05078125,-0.016357422,-0.031402588,0.05441284,-0.020385742,-0.04623413,0.010726929,-0.023452759,-0.039764404,-0.018630981,-0.00049066544,-0.046722412,0.00299263,-0.008232117,0.016448975,0.05987549,0.021759033,-0.046081543,-0.018005371,-0.020553589,0.015037537,-0.026916504,-0.0069465637,0.0070877075,0.03048706,0.022460938,0.0015230179,-0.001206398,0.018722534,0.0053977966,-0.027374268,0.0012760162,-0.004135132,-0.031341553,0.00831604,0.012664795,-0.057891846,0.0029697418,-0.010108948,0.08465576,-0.051727295,0.033172607,-0.020690918,0.01449585,0.061767578,-0.017669678,-0.058288574,0.01486969,0.031433105,0.0090408325,0.021087646,0.024230957,-0.01852417,-0.011764526,0.062683105,-0.01890564,-0.009529114,0.010322571,0.01449585,0.044525146,-0.021255493,-0.059539795,-0.046936035,0.022827148,-0.028564453,0.021514893,-0.022232056,0.028427124,-0.01374054,-0.008903503,-0.037597656,0.007183075,-0.0077171326,0.018539429,-0.025650024,-0.0031375885,-0.0099487305,-0.013198853,0.03942871,0.004962921,-0.013137817,-0.0037975311,0.06616211,0.007965088,-0.013702393,-0.028198242,-0.02178955,-0.026168823,-0.012123108,0.022399902,0.026275635,0.01524353,0.042236328,-0.03149414,0.012481689,0.026138306,0.0044898987,0.036010742,0.0006122589,-0.0042152405,-0.07336426,-0.0335083,-0.020202637,-0.06378174,0.038848877,0.023361206,0.00818634,0.05911255,0.017807007,-0.04046631,-0.02809143,0.026763916,-0.037261963,0.012519836,0.04864502,-0.012908936,-0.019592285,-0.016357422,-0.006965637,0.003332138,0.026397705,0.013687134,0.007095337,0.05343628,0.051757812,-0.008201599,0.015716553,-0.0012044907,0.012931824,0.0119018555,-0.02319336,-0.026947021,-0.018417358,0.024673462,-0.019363403,-0.01979065,-0.04736328,0.044799805,0.03869629,0.061584473,0.01802063,0.021728516,0.04046631,0.015548706,0.027328491,-0.003293991,-0.032043457,-0.043701172,-0.035217285,0.03463745,-0.02418518,-0.0071029663,-0.004085541,0.035583496,0.008605957,0.018707275,-0.027069092,0.03665161,-0.007320404,-0.0028915405,0.040618896,0.017211914,0.04748535,0.052642822,-0.038116455,0.007369995,0.025848389,-0.048217773,0.01979065,0.025177002,-0.020263672,-0.0057640076,-0.055267334,-0.032806396,0.005279541,-0.00048470497,-0.0446167,0.0058403015,0.00415802,0.010543823,0.03213501,-0.025177002,-0.032287598,0.006549835,-0.026428223,-0.04309082,0.0014324188,-0.043395996,0.01197052,0.027999878,-0.04598999,0.026046753,0.004878998,0.018936157,-0.019424438,-0.005634308,-0.0010681152,-0.010025024,-0.0362854,0.023666382,0.0039711,-0.0058555603,-0.0024356842,0.025772095,0.01058197,0.040893555,0.042907715,0.016830444,-0.011779785,-0.07232666,0.029144287,-0.05218506,0.016281128,0.028839111,-0.04736328,-0.0030097961,-0.006641388,-0.022827148,-0.027633667,0.00774765,-0.01902771,-0.008995056,0.020477295,-0.023345947,-0.0069465637,-0.06427002,-0.004573822,-0.0013542175,0.054138184,0.0058555603,-0.009559631,-0.07672119,0.0014982224,0.024719238,0.00869751,0.0038261414,-0.013923645,-0.015808105,0.0019607544,-0.0062713623,-0.025558472,-0.011985779,0.02267456,0.0015649796,0.011802673,0.018035889,0.020141602,0.022384644,0.021972656,-0.017532349,0.044311523,-0.0010490417,-0.005355835,0.009521484,0.044281006,0.007858276,-0.030197144,-0.042236328,0.03564453,-0.002735138,0.033355713,-0.038879395,-0.009140015,-0.0028209686,0.011680603,0.0055656433,0.0027561188,-0.0048294067,0.0041542053,-0.04284668,-0.05557251,0.046569824,-0.026763916,0.03427124,0.02645874,0.0069618225,0.026916504,0.0008802414,0.018707275,0.017837524,-0.038848877,-0.034973145,-0.028457642,-0.035064697,-0.025924683,-0.0079956055,-0.03414917,0.022491455,-0.021835327,0.0008907318,-0.004470825,-0.022583008,0.046203613,-0.011520386,0.0075416565,0.014816284,0.0047340393,0.019836426,0.026504517,0.014190674,-0.050323486,0.04119873,-0.010032654,0.013832092,-0.012321472,0.02279663,0.029769897,-0.025878906,0.008796692,-0.015205383,-0.0013141632,-0.0023441315,-0.002128601,-0.012634277,0.008369446,0.010154724,-0.05758667,0.02458191,-0.0015707016,-0.018554688,-0.035339355,0.024353027,0.004436493,-0.024246216,0.01007843,0.032928467,0.05496216,-0.0063591003,-0.00016379356,0.015434265,0.040771484,0.05255127,0.011962891,-0.013648987,0.035003662,0.00081062317,0.0317688,-0.011116028,-0.0049362183,0.011199951,0.00062799454,0.0335083,0.02709961,-0.0003838539,0.002664566,-0.03878784,-0.011222839,-0.00046348572,-0.020187378,0.017349243,0.016845703,0.029663086,-0.020217896,0.01789856,0.022216797,-0.024475098,-0.01424408,-0.0033130646,0.04067993,-0.015357971,-0.020324707,0.0066986084,0.020767212,0.03173828,-0.06427002,-0.011161804,-0.0068244934,0.016448975,0.0012302399,-0.03353882,-0.027297974,0.0031223297,0.041259766,0.011772156,0.0154953,0.032806396,0.014717102,-0.004749298,0.026657104,0.0013332367,-0.010116577,0.0038452148,-0.044281006,-0.0036792755,-0.011146545,0.010513306,-0.028320312,0.021072388,-0.0010261536,-0.017929077,0.0047950745,-0.035827637,0.002368927,-0.019363403,0.0043907166,0.02947998,-0.010261536,0.009735107,-0.009971619,-0.036743164,-0.0023670197,0.017425537,0.007144928,-0.030410767,0.022247314,-0.0154953,0.003364563,-0.00642395,0.011367798,0.019363403,0.004337311,0.013572693,0.028961182,-0.047912598,0.042816162,-0.016464233,0.022827148,0.00043177605,-0.013931274,-0.02243042,-0.026916504,-0.020812988,0.028717041,-0.006965637,-0.0072669983,-0.026428223,-0.049743652,-0.012039185,-0.05895996,0.02456665,0.027557373,0.03753662,-0.01727295,0.0049858093,-0.0093307495,0.0023422241,0.0053710938,0.016540527,-0.019378662,0.03112793,0.0096206665,0.018707275,-0.018310547,-0.0234375,-0.035491943,-0.0015935898,-0.049560547,-0.043792725,-0.00674057,0.016601562,-0.005634308,-0.012237549,-0.04559326,-0.020385742,-0.0010032654,-0.027679443,0.015609741,0.0047569275,0.021713257,0.0016126633,-0.0055999756,0.0025482178,0.009590149,-0.006843567,0.042022705,0.016998291,-0.0034713745,-0.044891357,0.015975952,0.01398468,0.006450653,-0.021087646,-0.008285522,-0.002729416,-0.017913818,-0.06048584,0.01361084,0.0073623657,-0.005657196,-0.014045715,0.017547607,-0.046569824,0.004142761,-0.040771484,-0.01486969,0.019866943,0.019943237,0.0059432983,-0.0065460205,0.006538391,-0.008659363,-0.01663208,-0.04421997,0.020141602,0.00995636,0.008872986,0.015960693,0.060028076,0.009269714,-0.026916504,0.0027103424,-0.010131836,0.0033550262,-0.025360107,0.025161743,-0.0027999878,0.010528564,-0.008964539,-0.0069732666,-0.035736084,0.003955841,0.07128906,-0.00075387955,-0.015403748,-0.01586914,-0.010917664,0.0129852295,0.015457153,-0.029144287,0.014060974,-0.024551392,0.025665283,-0.031921387,-0.0019683838,-0.013870239,0.03817749,-0.017028809,-0.048553467,-0.0040283203,-0.025283813,-0.012901306,-0.06390381,-0.026123047,-0.06298828,0.0041770935,0.01424408,-0.018615723,0.0023918152,0.023803711,-0.021148682,-0.089782715,0.0043563843,0.03677368,0.0068511963,0.022399902,0.0049095154,0.019332886,0.02796936,-0.018066406,-0.01914978,0.016555786,-0.026351929,0.006755829,-0.02418518,0.022399902,-0.010536194,-0.013793945,0.017181396,0.0028972626,0.010688782,-0.010986328,-0.006263733,-0.011581421,0.0028057098,-0.018417358,0.02204895,-0.015167236,-0.00881958,0.038360596,-0.049560547,0.02947998,0.022750854,-0.0010156631,0.0027122498,0.039123535,0.039215088,-0.03149414,0.0003669262,0.017593384,0.020431519,0.052978516,-0.023239136,0.028915405,0.010238647,-0.0030441284,0.0021381378,0.005558014,-0.0033779144,-0.026870728,-0.012039185,0.03277588,0.001004219,-0.0050315857,-0.015930176,0.0087509155,0.0110321045,0.02017212,0.0045433044,-0.004764557,-0.031982422,-0.03741455,0.0013608932,0.0035305023,-0.001496315,-0.004371643,0.017669678,0.030731201,0.03765869,0.028686523,-0.017074585,0.0101623535,0.030151367,-0.010421753,-0.0066452026,0.020767212,-0.0079574585,0.02230835,0.014305115,0.008995056,-0.033416748,-0.021316528,-0.018539429,-0.018966675,0.0014915466,-0.005580902,0.016830444,0.0029678345,0.005130768,0.006439209,-0.028320312,0.0074005127,-0.031280518,-0.038024902,-0.012817383,-0.01979065,0.029144287,-0.0011167526,0.001958847,0.03164673,-0.005279541,0.047607422,0.008148193,-0.020736694,0.037017822,0.037750244,0.02456665,-0.023529053,0.0020694733,-0.017181396,-0.020812988,-0.0065307617,-0.041015625,0.032318115,0.017745972,-0.0072288513,0.001865387,-0.0099487305,0.025268555,-0.022201538,-0.006843567,-0.0146484375,0.018463135,-0.004043579,0.053771973,-0.0340271,0.021011353,0.025115967,-0.012199402,-0.0014753342,-0.0010986328,-0.033599854,0.01348114,0.014968872,-0.0107803345,0.034179688,0.0029678345,0.03314209,-0.031402588,-0.019256592,-0.004047394,-0.025604248,-0.038909912,0.012756348,-0.0065078735,-0.02583313,0.017440796,-0.025177002,0.029174805,-0.026382446,0.018875122,-0.015670776,0.008110046,-0.015396118,-0.01512146,-0.013000488,-0.009475708,-0.0109939575,0.0018491745,-0.0049476624,0.061157227,0.012809753,0.027297974,0.043182373,0.019515991,-0.0002667904,-0.033203125,-0.026504517,0.0005764961,0.00077056885,-0.004585266,-0.020553589,0.05343628,0.044525146,-0.003768921,0.027511597,0.016479492,0.025375366,0.0060806274,0.016601562,-0.013198853,0.0078125,-0.0062446594,0.03289795,-0.0032310486,0.050567627,-0.02558899,0.035308838,0.015022278,0.020324707,-0.028457642,0.029373169,0.07165527,0.011390686,-0.02671814,0.018707275,0.0003671646,-0.01689148,-0.015670776,-0.021484375,0.055847168,0.011184692,0.034729004,0.05987549,0.009361267,0.010391235,0.024887085,-0.02015686,-0.017745972,0.06427002,0.020996094,-0.004398346,-0.01940918,-0.0087509155,0.012077332,-0.041137695,-0.021194458,0.0025253296,-0.024383545,0.005378723,-0.0006546974,-0.00762558,-0.0099105835,0.024169922,0.023605347,0.025985718,-0.018493652,0.030944824,0.01828003,-0.0068130493,0.013626099,-0.0020771027,0.019195557,-0.021911621,-0.025390625,0.0231781,0.029251099,-0.020217896,-0.01939392,0.026489258,0.015007019,0.04827881,0.049316406,-0.026565552,0.0062789917,0.035736084,0.0012302399,0.0039482117,0.052001953,0.03778076,0.012863159,0.050994873,0.03591919,0.037353516,-0.035186768,0.020233154,0.0031280518,-0.0015125275,-0.014778137,0.0042152405,0.0044898987,-0.024642944,0.042236328,-0.0015735626,-0.016998291,0.01689148,0.032226562,0.001285553,-0.0042266846,-0.014846802,0.00356102,-0.024627686,-0.0066986084,0.034851074,-0.015960693,0.02557373,-0.0008649826,0.030227661,-0.042938232,0.02758789,-0.0030212402,-0.021133423,-0.009536743,0.030349731,-0.04244995,0.0038719177,0.0008530617,-0.014793396,-0.04824829,0.0014619827,0.024505615,-0.019592285,0.022476196,0.0075950623,0.001414299,-0.004169464,0.02960205,0.002275467,0.011665344,-0.0079422,-0.025634766,0.019348145,0.0390625,0.012527466,0.0020122528,-0.016357422,0.0029907227,-0.000050008297,-0.01878357,-0.013664246,0.0037403107,-0.019165039,-0.009536743,0.023269653,0.032409668,0.004890442,0.055114746,-0.014457703,-0.016220093,0.009887695,0.02935791,0.007003784,-0.014457703,-0.009727478,0.021820068,-0.025878906,0.04763794,0.039886475,0.0075950623,0.03173828,0.00030350685,-0.015914917,0.008712769,-0.008926392,0.023254395,-0.01499939,0.0013132095,-0.00497818,0.023513794,-0.017654419,-0.018493652,-0.0048561096,-0.024276733,-0.016860962,-0.010803223,0.00945282,0.00013804436,0.022827148,0.041778564,0.008705139,-0.015899658,0.05682373,-0.027740479,0.04144287,0.019104004,-0.019958496,0.04876709,0.03643799,0.05328369,0.01701355,0.024093628,-0.02909851,0.029067993,0.04928589,0.011238098,0.018875122,-0.00017178059,-0.018234253,0.03540039,0.0017414093,0.03414917,-0.0005373955,-0.010528564,0.009849548,-0.011962891,-0.00920105,0.0022296906,-0.014533997,-0.007873535,0.048950195,-0.030410767,-0.008171082,-0.026947021,-0.011268616,0.030685425,-0.011154175,-0.008308411,-0.0011806488,-0.017990112,0.01890564,-0.021255493,-0.010635376,0.0048713684,0.030090332,-0.052642822,0.0026569366,0.01789856,-0.000726223,-0.009536743,0.020843506,0.026992798,-0.006679535,-0.0018262863,0.037261963,-0.023925781,0.0446167,-0.017349243,0.024612427,0.014282227,0.009971619,-0.011161804,0.0045204163,0.0056266785,-0.016159058,0.004398346,0.03729248,-0.027450562,-0.0025577545,0.0014028549,-0.008003235,0.005504608,-0.012237549,-0.008674622,0.010551453,-0.007736206,-0.024536133,0.0073890686,0.01751709,0.003030777,0.007472992,0.007663727,0.001619339,0.01864624,0.036468506,0.028686523,-0.043762207,-0.00022649765,0.009002686,0.0037975311,-0.018463135,-0.01007843,-0.0003273487,-0.043121338,0.0071640015,0.01084137,0.0045700073,0.01586914,-0.013717651,-0.005657196,0.014961243,0.014160156,0.0118637085,-0.0029678345,0.008392334,0.022888184,-0.025161743,-0.010475159,-0.006248474,-0.0038642883,0.01701355,0.02835083,-0.017349243,-0.029174805,0.015571594,-0.011245728,0.018463135,-0.008514404,0.0034160614,0.02456665,-0.013999939,-0.013664246,0.0042419434,0.021102905,-0.0143585205,-0.015007019,-0.0057640076,0.016159058,0.056396484,-0.0044555664,0.0047302246,0.013687134,0.015930176,0.023162842,0.036834717,0.012763977,0.04711914,0.028320312,-0.014831543,0.0026664734,0.012359619,-0.0017738342,-0.03152466,0.01687622,-0.026397705,-0.013885498,-0.0004386902,0.015396118,-0.004135132,-0.026763916,-0.006465912,-0.004837036,-0.008865356,0.01651001,-0.016067505,0.016342163,-0.017105103,-0.0056610107,0.018478394,-0.03277588,-0.042144775,-0.028915405,-0.027175903,-0.0028038025,-0.05392456,0.01108551,-0.026168823,0.018737793,-0.020446777,-0.0055732727,-0.006832123,0.013000488,0.0042419434,-0.026306152,0.005252838,0.033996582,0.016189575,0.021514893,0.024291992,-0.03213501,-0.015289307,-0.019760132,-0.0011949539,-0.012397766,0.027740479,0.0054512024,0.029510498,0.020431519,-0.031204224,-0.009307861,-0.009979248,-0.00592041,-0.008049011,-0.0030345917,-0.017684937,0.0110321045,0.0046157837,0.015571594,-0.00982666,0.04257202,-0.028884888,-0.011695862,0.020706177,0.041290283,-0.0034770966,0.036315918,-0.019546509,0.00012505054,-0.018814087,-0.0032100677,-0.015899658,0.0138549805,0.002450943,0.01449585,-0.0007214546,0.020996094,0.021453857,-0.0005168915,0.005466461,0.033325195,0.010269165,0.0109939575,0.017623901,0.013534546,0.019424438,-0.01058197,-0.010536194,0.013702393,0.033203125,0.030273438,0.0010547638,-0.008125305,0.007801056,-0.014762878,0.010055542,0.020858765,-0.021255493,-0.041412354,-0.018310547,-0.038391113,0.00894165,-0.0023212433,0.01348114,-0.003364563,0.013175964,-0.021453857,-0.02394104,-0.016555786,0.028427124,0.026275635,-0.008300781,-0.0061187744,0.0032596588,0.011779785,-0.028167725,-0.0075035095,-0.05328369,-0.04574585,0.008460999,-0.014137268,0.03503418,0.00081682205,-0.017547607,-0.009277344,-0.014282227,-0.008056641,0.017791748,0.025802612,0.0028915405,-0.008178711,0.021499634,0.030685425,-0.0063591003,0.0289917,-0.011444092,0.016540527,0.018707275,-0.007621765,0.013969421,-0.013282776,0.023864746,-0.0010604858,0.007446289,0.032348633,0.0058555603,0.010284424,-0.046905518,-0.0046691895,0.017074585,-0.004432678,0.033996582,-0.019500732,-0.017532349,0.0018262863,-0.019943237,-0.025680542,-0.0032367706,0.008407593,0.024139404,0.0012073517,0.053375244,-0.012039185,-0.013290405,0.022384644,0.0047187805,-0.017105103,0.012397766,0.029022217,-0.01134491,-0.005504608,-0.008666992,-0.018005371,-0.016281128,0.0030384064,-0.0036849976,-0.014289856,0.0048561096,0.010314941,0.013717651,0.028503418,0.006801605,0.022064209,-0.007331848,0.020233154,0.026382446,0.009757996,0.0357666,-0.009651184,-0.0152282715,0.0032176971,0.0019083023,-0.027328491,0.011505127,-0.0062942505,-0.0003399849,-0.03842163,0.001200676,0.001367569,0.028808594,-0.011993408,0.011276245,-0.013267517,-0.013969421,-0.020568848,-0.0096588135,-0.031951904,0.0138549805,0.024887085,-0.0027484894,0.024398804,-0.00011777878,-0.022079468,0.007160187,0.0491333,-0.0059509277,-0.029144287,-0.0211792,0.019699097,-0.011474609,0.007850647,0.013999939,-0.020553589,-0.022613525,-0.0021018982,-0.0062789917,-0.007408142,-0.012214661,0.0105896,-0.000998497,-0.0064697266,-0.0095825195,0.022064209,0.0040779114,-0.0178833,-0.0009293556,0.00021231174,0.030639648,0.029449463,-0.003288269,0.0031661987,0.022903442,-0.038269043,0.064697266,-0.00705719,0.02519226,-0.013999939,-0.0014667511,-0.052215576,-0.018829346,-0.01727295,-0.007019043],"createdAt":"2026-04-18T18:58:45.512Z","updatedAt":"2026-04-24T22:32:56.455Z","lastSeenAt":"2026-04-24T22:32:56.455Z","tsv":"'/api/v1/transactions/160/receipt':94 '/request':17,34 '0.02':16,33,80,118,210 '000':113 '0x1a2b':130 '160':51 '20':112 '402 payment required API' '6':123 '85f3':131 'Base network API' 'USDC pay-per-call' 'accept':95 'access':46,142 'actual':189,225 'address':129 'advertis':141 'ai/ml':70 'analysi':201 'analyt':69 'api':45,66,135,157 'base':9,26,89,114,133 'base-network' 'broader':57 'call':4,21,65,126 'challeng':103 'confirm':104 'connect':166 'contain':190 'content':172 'data':68,73,220 'decim':124 'descript':183 'doc':156 'document':151,215 'dozen':60 'enabl':38 'endpoint':7,24,39,93,199,224 'estim':205 'etc':206 'exampl':180 'extrem':153 'finance/web3':72 'function':222 'gas':204 'gate':144 'geocod':203 'id':50 'infer':71 'infrastructur':75 'json':100 'json-response' 'key':136 'land':194 'limit':139 'list':196 'live':107 'lowpaymentfee' 'lowpaymentfee.com':41 'mani':197 'maximum':110 'micropay':149 'network':90 'no-api-key' 'offer':59 'openapi':176 'page':161,195 'paid':127 'part':54 'pay':2,19,63 'pay-per-cal':1,18,62 'pay-per-call' 'payload':188 'per':3,20,64,81,125 'platform':58,192 'point':212 'post':96 'premium':44 'premium API access' 'price':78,158,211 'prompt':168 'protocol':150 'provid':42,226 'pure':145 'rate':138 'readm':160 'receipt':6,23,47,187 'render':163 'request':82,97 'request/response':179 'requir':108 'return':99 'schema':177 'sentiment':200 'settl':12,29,84 'sinc':120 'span':67 'spars':154 'specif':92 'substant':171 'summar':202 'transact':5,22,49 'transaction receipt API' 'transaction-receipt' 'unclear':218 'unit':115 'usd':119 'usdc':14,31,86,117,121 'usdc-settlement' 'use':122 'util':76 'via':10,27 'wallet':167 'without':214 'x402':11,28,37,102,148 'x402 micropayment endpoint' 'x402-enabled':36 'x402-payment'","prices":[{"id":"4ad2be2a-5330-4c07-8432-9401b4c58a4a","listingId":"2926492f-a762-4190-b2b5-2d8ed2ad82a0","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/160/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":"2026-04-18T18:58:45.512Z"}],"sources":[{"listingId":"2926492f-a762-4190-b2b5-2d8ed2ad82a0","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/transactions/160/receipt","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:58:45.512Z","lastSeenAt":"2026-04-24T22:32:56.455Z"}],"details":{"listingId":"2926492f-a762-4190-b2b5-2d8ed2ad82a0","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/transactions/160/receipt \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge requiring 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/transactions/160/receipt"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/transactions/160/receipt"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving a transaction receipt for transaction 160 via micropayment","Demonstrating x402 protocol integration for pay-per-call APIs","Agent-driven programmatic access to paid endpoints without API key management"],"bestFor":["Developers experimenting with x402 micropayment protocol","Agents needing keyless, pay-per-use API access on Base","Projects requiring USDC-settled per-call billing"],"notFor":["Production workloads requiring documented request/response schemas","Users who need free or subscription-based API access","Applications needing high-throughput batch processing (no documented rate limits but no guarantees either)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:43.164Z"},"updatedAt":"2026-04-24T22:32:56.455Z"}}