{"id":"1871d136-a06d-4c5c-a62c-45c5e244cdfc","shortId":"4rKXKG","kind":"x402","title":"Pay-per-call API platform on Base network via x402 — $0.02/request in USDC.","tagline":"Pay-per-call API platform on Base network via x402 — $0.02/request in USDC.","description":"lowpaymentfee.com is a pay-per-request API platform that uses the x402 protocol to accept USDC payments on the Base network. The specific endpoint `/api/v1/wire/125` is listed as \"Premium API Access\" and returns a standard x402 402 challenge requesting up to 20,000 base units of USDC (i.e., $0.02) per call. No API keys or rate limits are required; callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe broader platform advertises multiple API categories including Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are uniformly priced at $0.02 per request.\n\nHowever, the specific functionality behind `/api/v1/wire/125` is not documented beyond the label \"Premium API Access.\" The crawled docs, pricing, and README pages all returned only a \"Connect wallet\" prompt with no additional technical documentation, input/output schemas, or usage examples. Without knowing what this endpoint actually returns, callers should treat it as an opaque paid endpoint until further documentation is available.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","no-api-key","http-post"],"categories":["api-platform","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","premium API access","crypto-paid API"],"warnings":["No documentation available — docs, pricing, and README pages all render only 'Connect wallet' with no content.","The specific functionality of /api/v1/wire/125 ('Premium API Access') is completely undocumented.","No OpenAPI spec, no input schema, and no output schema are provided.","No example requests or responses are available to verify what data the endpoint returns."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/125","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/wire/125","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 402 challenge, confirming it accepts USDC on Base at $0.02/request. However, there is no documentation of what the endpoint actually does, no input/output schema, no examples, and the docs/pricing/README pages are all empty beyond a wallet-connect prompt. The specific purpose of /api/v1/wire/125 is unknown.","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":"2026-04-19T14:46:11.215Z","embedding":[-0.010772705,-0.040496826,0.017211914,0.01008606,0.00048971176,-0.022598267,-0.014907837,0.020874023,0.06185913,-0.07562256,0.02406311,-0.036132812,-0.03475952,-0.027236938,-0.0074806213,0.014816284,0.006893158,0.010185242,-0.019958496,0.020904541,0.0236969,0.004764557,-0.024124146,0.025375366,0.003314972,-0.0078048706,-0.009887695,-0.002117157,-0.012496948,-0.032470703,0.033355713,-0.026916504,-0.009925842,0.0055007935,-0.03363037,-0.02305603,-0.0010824203,0.029159546,0.018447876,0.0030555725,-0.0064888,-0.054656982,0.00060653687,-0.02645874,-0.04626465,-0.0052719116,-0.010429382,0.0005431175,0.011100769,0.0007481575,-0.039276123,-0.0036182404,-0.013839722,0.0031661987,-0.0079422,0.011940002,0.0029563904,-0.013313293,-0.00023126602,0.006515503,-0.0035247803,-0.061340332,-0.014518738,-0.012886047,0.017791748,0.057281494,-0.0099105835,0.045440674,0.01890564,0.07849121,0.03945923,0.057128906,0.04119873,0.0048713684,-0.0071525574,-0.013023376,-0.006401062,0.046569824,-0.019485474,-0.013587952,-0.024597168,-0.021102905,-0.0592041,0.013656616,-0.022415161,-0.04650879,-0.01576233,0.020523071,-0.003993988,0.016296387,-0.08154297,0.0011510849,-0.0037994385,-0.005634308,0.0007100105,0.0022068024,-0.0016231537,0.019470215,-0.02180481,0.021148682,-0.0072517395,-0.030654907,0.010185242,0.017288208,0.022705078,0.046813965,0.023971558,0.01210022,-0.007133484,-0.0002901554,-0.024032593,0.008605957,-0.012077332,-0.007774353,0.019195557,-0.000067055225,-0.0051193237,0.009735107,-0.0105896,0.032592773,-0.048675537,0.048339844,0.008705139,-0.009994507,0.007583618,-0.03515625,-0.02659607,0.024490356,-0.004055023,-0.005302429,0.016586304,0.013442993,0.03286743,-0.034301758,-0.02444458,0.025283813,-0.033081055,-0.008094788,-0.04724121,-0.024246216,0.054107666,-0.016937256,0.016860962,0.025177002,-0.07727051,0.0033931732,-0.045440674,0.0011529922,-0.025787354,-0.016738892,-0.0004911423,0.031341553,-0.0115737915,-0.014945984,-0.020996094,-0.014564514,0.0023269653,0.035980225,-0.013839722,0.046020508,-0.017578125,0.027252197,0.011795044,0.014045715,0.010093689,0.016662598,-0.017868042,-0.07714844,-0.076538086,-0.005443573,-0.0032958984,-0.011619568,-0.028533936,0.019210815,0.0018453598,-0.06958008,-0.012886047,-0.023239136,0.004878998,-0.03753662,0.007499695,-0.024276733,0.005973816,0.0009326935,-0.07421875,-0.032348633,-0.024658203,0.070495605,0.030517578,0.017623901,0.030410767,-0.009963989,0.056488037,0.029037476,-0.01348114,-0.0050697327,0.019088745,-0.02180481,0.012779236,-0.016036987,0.004142761,-0.04071045,0.039642334,0.068359375,0.0058937073,-0.0035209656,-0.006259918,-0.0748291,-0.04248047,-0.036590576,0.015930176,0.00027799606,0.0027942657,0.04144287,-0.032806396,-0.050598145,0.012641907,0.0046539307,0.010719299,0.054473877,0.017593384,-0.010154724,0.02067566,0.027770996,-0.05722046,0.029846191,0.032318115,0.011238098,-0.021820068,-0.016571045,0.02960205,0.04220581,-0.013793945,0.011665344,-0.013916016,0.03817749,-0.01713562,0.0058059692,0.014518738,-0.023803711,-0.023345947,-0.033233643,-0.027389526,0.03314209,-0.001241684,-0.026229858,-0.030181885,-0.07733154,0.048706055,0.045837402,0.04244995,-0.0048446655,0.0044403076,-0.012176514,-0.010475159,-0.06762695,0.06750488,0.064453125,0.013061523,-0.012390137,0.034423828,-0.0030593872,-0.024627686,0.01777649,-0.0016565323,-0.033355713,-0.0064926147,0.014381409,-0.039031982,0.0087509155,0.01222229,0.033721924,0.06530762,-0.011741638,-0.062408447,-0.018829346,-0.0021781921,0.004142761,-0.01776123,0.009284973,-0.009300232,0.010231018,0.015327454,0.000012636185,0.007259369,-0.0024414062,-0.015823364,0.000099003315,0.0029411316,-0.02053833,-0.025299072,0.019622803,-0.012710571,-0.061767578,0.01751709,0.007232666,0.06829834,-0.05026245,0.033691406,-0.017578125,-0.004924774,0.06149292,0.0035305023,-0.047821045,0.0051498413,0.018814087,0.014205933,0.042785645,0.010322571,-0.045806885,-0.0068855286,0.0814209,-0.010406494,-0.01360321,0.0056114197,0.021652222,0.04272461,-0.0079193115,-0.0597229,-0.025405884,0.0030841827,-0.032409668,0.027862549,-0.035705566,0.023757935,-0.007446289,0.0061950684,-0.02822876,-0.0008788109,-0.03729248,0.00844574,0.0035114288,0.015419006,-0.019622803,-0.016433716,0.009803772,-0.0012235641,-0.010543823,-0.0043907166,0.047424316,0.016296387,0.00040578842,-0.040802002,-0.026535034,-0.006298065,0.0019664764,0.019577026,0.025527954,0.032409668,0.05999756,-0.03765869,0.013954163,0.025848389,0.029190063,0.038848877,-0.017791748,0.012802124,-0.07287598,-0.047729492,-0.025970459,-0.057647705,0.038330078,0.010406494,-0.005012512,0.051757812,0.03152466,-0.017303467,-0.038391113,0.021896362,-0.04309082,0.004459381,0.04650879,-0.020553589,-0.024536133,0.0069236755,0.005355835,0.01235199,0.0390625,0.023529053,0.029220581,0.072753906,0.036621094,0.0018434525,0.01838684,-0.0053901672,0.034088135,0.008300781,-0.012786865,-0.038757324,-0.016235352,0.04675293,-0.017303467,-0.016448975,-0.08685303,0.05355835,0.028121948,0.08929443,0.016555786,0.008522034,0.030044556,-0.02720642,-0.011688232,-0.043151855,-0.018585205,-0.0127334595,-0.041168213,0.035217285,-0.029403687,-0.0027751923,-0.024246216,0.031097412,0.0003182888,0.025146484,-0.009185791,0.04260254,-0.021652222,-0.0022201538,0.0096588135,0.021606445,0.03817749,0.068359375,-0.038330078,0.023803711,0.025482178,-0.01701355,0.0055732727,0.030288696,-0.016036987,0.009971619,-0.060821533,-0.022247314,-0.010063171,-0.011039734,-0.052490234,0.015060425,0.0031337738,0.027145386,0.03503418,-0.008560181,-0.008277893,-0.014152527,-0.0135650635,-0.051208496,0.0132369995,-0.031036377,-0.0018424988,0.04006958,-0.011306763,-0.0128479,0.0010576248,-0.011993408,-0.021316528,0.018127441,0.024246216,0.009147644,-0.04547119,0.03375244,0.014228821,0.0058250427,-0.0010795593,0.03137207,0.013206482,0.032440186,0.048583984,0.007167816,-0.01928711,-0.06323242,0.016845703,-0.04562378,0.0023002625,0.028137207,-0.024154663,-0.0044174194,-0.01701355,-0.026321411,-0.023040771,0.02330017,-0.026733398,0.017166138,0.00178051,-0.022994995,-0.019699097,-0.046875,-0.02305603,-0.0053138733,0.066101074,0.029052734,0.0052261353,-0.058166504,-0.01499939,0.013092041,0.007461548,0.04171753,-0.0143966675,-0.0016584396,-0.019821167,-0.04724121,0.0004556179,-0.030670166,0.01675415,-0.004009247,0.000019550323,0.026138306,-0.002986908,0.025482178,0.020645142,0.011421204,0.03555298,-0.023986816,-0.014724731,0.0027065277,0.04446411,0.019607544,0.004425049,-0.046844482,0.043518066,0.026290894,0.032073975,-0.03918457,-0.007858276,-0.008781433,0.010391235,0.0044555664,-0.009521484,0.00056123734,0.0051078796,-0.04748535,-0.056640625,0.048095703,-0.012123108,0.016189575,0.024993896,-0.012565613,0.016479492,-0.00497818,0.007335663,0.008995056,-0.026443481,0.0029678345,-0.00017106533,-0.035583496,-0.01864624,-0.017974854,-0.030517578,0.025421143,-0.014160156,0.013191223,0.011695862,-0.013282776,0.026687622,-0.00198555,-0.01399231,0.014656067,-0.012336731,0.031341553,0.042755127,-0.0010128021,-0.04748535,0.018356323,-0.00016450882,0.014373779,0.0018129349,0.027679443,0.0259552,0.010604858,-0.001203537,-0.011634827,-0.021194458,-0.017990112,0.0008583069,0.016571045,-0.0013208389,0.003484726,-0.049926758,0.010826111,0.0047836304,-0.042633057,-0.020812988,0.005794525,0.005130768,-0.034240723,0.016403198,0.03604126,0.042907715,-0.020080566,-0.0051841736,0.002319336,0.026031494,0.043518066,0.010292053,-0.020645142,0.027404785,-0.022888184,-0.0011205673,-0.0024909973,-0.016937256,0.019638062,0.0031166077,0.025848389,0.031982422,0.00447464,-0.03152466,-0.031143188,0.0043792725,-0.0070343018,-0.0259552,0.029403687,0.023468018,0.02720642,-0.0209198,0.014205933,0.012260437,-0.01777649,-0.012321472,-0.01210022,0.04171753,-0.019317627,-0.022613525,0.0140686035,0.012756348,0.029663086,-0.056030273,-0.015838623,0.0070495605,0.0023384094,-0.02017212,-0.03616333,-0.044952393,0.012634277,0.03933716,-0.002073288,0.01285553,0.03756714,-0.0035114288,0.006023407,0.028900146,-0.000052154064,-0.031402588,-0.008346558,-0.035247803,-0.015670776,-0.02671814,-0.016021729,-0.021392822,0.014213562,-0.006401062,-0.03564453,0.002626419,0.0040740967,-0.0027484894,-0.002286911,0.014503479,0.03475952,0.0010595322,0.015991211,-0.020812988,-0.041625977,-0.015106201,0.00007337332,-0.0006055832,-0.043884277,0.011253357,-0.021606445,-0.012992859,0.021850586,0.008903503,0.016906738,0.022354126,0.012954712,0.033996582,-0.047912598,0.053771973,-0.035705566,0.0060806274,-0.0072364807,-0.04650879,-0.0056114197,-0.014266968,-0.008087158,0.040100098,-0.029525757,-0.0057373047,-0.026947021,-0.031707764,-0.0045051575,-0.0440979,0.015945435,0.040924072,0.02885437,-0.02999878,0.0068511963,-0.00039315224,0.008880615,-0.0178833,-0.0006804466,-0.025039673,0.025299072,0.016571045,-0.0021400452,-0.040008545,-0.034332275,-0.017440796,0.0022640228,-0.030395508,-0.050933838,-0.017181396,-0.0036754608,-0.007335663,-0.01663208,-0.021575928,-0.028015137,-0.0016155243,-0.047210693,0.016204834,0.018585205,0.024154663,-0.0017967224,-0.026473999,0.005252838,0.020370483,-0.02180481,0.038726807,0.0006451607,-0.008483887,-0.045928955,0.015106201,-0.002439499,0.026672363,-0.0015525818,-0.020462036,-0.012168884,-0.012931824,-0.051635742,-0.002538681,-0.0074005127,-0.016616821,-0.011558533,0.0033912659,-0.046447754,-0.013771057,-0.008911133,0.013511658,0.021026611,0.0051574707,0.017150879,-0.004638672,0.015144348,-0.0036125183,-0.013458252,-0.029220581,0.016143799,0.010765076,-0.007572174,0.030303955,0.0463562,0.0064468384,-0.031280518,0.0062217712,0.019485474,0.012588501,-0.032928467,0.0059547424,-0.01977539,0.005470276,-0.014839172,-0.017730713,-0.032104492,-0.006767273,0.089904785,-0.0025482178,-0.029312134,-0.015388489,-0.013198853,0.01838684,0.011489868,-0.027542114,-0.011756897,-0.01474762,0.018234253,-0.023025513,0.013641357,-0.0054092407,0.01876831,-0.013748169,-0.054656982,-0.029815674,-0.010749817,-0.023803711,-0.060668945,-0.03387451,-0.07385254,0.0068855286,0.005634308,-0.028793335,0.0011711121,0.00806427,-0.020568848,-0.08026123,0.0146865845,0.049804688,0.0061302185,0.020462036,-0.009864807,0.017929077,0.028320312,-0.04144287,-0.004463196,0.027954102,-0.022583008,-0.02029419,-0.015419006,0.009536743,-0.016036987,-0.009597778,0.0005469322,0.018676758,0.024337769,-0.011131287,0.011100769,-0.0068855286,0.013755798,-0.012107849,0.01008606,-0.01776123,-0.004753113,0.04244995,-0.05126953,0.019439697,0.0058135986,-0.009590149,0.0140686035,0.03491211,0.043029785,-0.040649414,-0.01084137,0.023132324,0.016601562,0.027435303,-0.014434814,0.042053223,0.01600647,-0.029296875,0.03353882,-0.0129852295,-0.017440796,-0.021621704,-0.027755737,0.01789856,-0.0090789795,0.021606445,-0.028457642,-0.005092621,0.011833191,-0.0029067993,0.019943237,0.0013360977,-0.028533936,-0.011383057,0.001537323,0.013473511,0.00020492077,-0.0085372925,0.027908325,0.032043457,0.025100708,0.014541626,-0.016479492,0.0011024475,0.024368286,-0.016281128,0.0044670105,0.030471802,0.0032672882,0.0211792,0.005836487,0.020568848,-0.0435791,-0.021728516,-0.020614624,-0.04083252,-0.0109939575,-0.003824234,-0.018554688,-0.012573242,0.01008606,-0.0032138824,-0.018844604,0.0010852814,-0.020492554,-0.025177002,-0.0072250366,-0.008026123,0.039398193,0.00086402893,0.011917114,0.003004074,0.0052490234,0.043823242,-0.010475159,-0.018463135,0.021987915,0.031799316,0.018844604,-0.028686523,0.002374649,-0.009391785,-0.007865906,-0.0042152405,-0.04650879,0.0074653625,0.04058838,-0.025909424,0.0074806213,0.0030937195,0.012176514,-0.00945282,0.0038928986,-0.012634277,0.013839722,-0.0021800995,0.03137207,-0.03945923,0.01675415,0.006263733,-0.0024204254,-0.016601562,-0.011260986,-0.025558472,0.022354126,0.008010864,-0.017211914,0.05215454,0.0004963875,0.034240723,-0.022064209,-0.018310547,0.007972717,-0.026885986,-0.029754639,0.042114258,-0.006576538,-0.0002617836,0.00920105,-0.024108887,0.03753662,-0.02293396,0.025619507,-0.013381958,0.0028324127,-0.0014324188,-0.026489258,-0.0006928444,-0.010772705,-0.018737793,0.018997192,0.009353638,0.05355835,0.016403198,0.035125732,0.05883789,0.028045654,-0.009284973,-0.030731201,-0.0178833,-0.00089502335,-0.014122009,0.02154541,-0.011192322,0.055145264,0.020812988,0.0043563843,0.02885437,0.039367676,0.036254883,0.006919861,0.00010186434,-0.016036987,0.0014352798,0.00069761276,0.039093018,-0.00365448,0.03491211,-0.035186768,0.035491943,0.00554657,0.023757935,-0.035980225,0.028015137,0.071899414,0.012321472,-0.023391724,0.049224854,-0.0143585205,-0.0135269165,-0.0024852753,-0.013969421,0.051635742,0.007511139,0.045776367,0.05050659,0.018966675,0.006198883,0.027862549,-0.02154541,-0.016342163,0.059509277,0.033325195,-0.012283325,-0.01574707,-0.0011262894,0.0057907104,-0.05230713,-0.022644043,0.025100708,-0.012893677,0.007217407,-0.015296936,-0.0026721954,-0.014656067,0.009780884,0.0062408447,0.009101868,-0.015312195,0.022628784,0.031951904,-0.003944397,0.027404785,-0.00617218,0.031555176,-0.021591187,-0.021636963,0.01689148,0.02468872,-0.010437012,-0.005710602,0.01852417,0.013954163,0.023086548,0.044891357,-0.021911621,0.0234375,0.036590576,0.017089844,-0.01109314,0.05493164,0.03363037,0.0022335052,0.043395996,0.023269653,0.034606934,-0.032409668,0.025482178,-0.006187439,0.011199951,-0.0063095093,-0.009269714,0.0044021606,-0.01159668,0.008300781,-0.0036582947,-0.016113281,0.02381897,0.027359009,-0.00038981438,-0.008583069,-0.023162842,-0.007545471,-0.017089844,-0.00217247,0.0029830933,-0.021713257,0.037841797,0.008422852,0.0154800415,-0.016921997,0.011421204,-0.005973816,-0.023254395,-0.0060157776,0.032440186,-0.0357666,0.017440796,-0.007865906,0.00097322464,-0.047698975,0.00029563904,0.035827637,-0.009025574,0.025054932,0.011657715,0.00034689903,-0.0032348633,0.023635864,0.0006055832,-0.0014343262,-0.010772705,-0.02960205,0.037719727,0.052124023,-0.0041770935,0.003232956,-0.027938843,-0.008712769,-0.0009965897,-0.01235199,-0.011222839,-0.005256653,-0.021621704,-0.02949524,0.026763916,0.03765869,0.03277588,0.06304932,-0.017593384,-0.011131287,0.007419586,0.045074463,0.007095337,-0.013824463,-0.0065193176,0.011184692,-0.018173218,0.051330566,0.025238037,0.0061569214,0.03817749,0.004447937,-0.03152466,0.008628845,-0.011039734,0.021392822,-0.0045433044,0.012527466,-0.015609741,0.02772522,-0.01424408,-0.035095215,0.016830444,-0.024551392,-0.019058228,-0.014656067,0.00036597252,0.0026988983,0.030441284,0.03475952,0.021072388,-0.02368164,0.062927246,-0.0017280579,0.05429077,0.0054016113,-0.0057258606,0.04925537,0.008392334,0.026504517,0.01424408,0.011192322,-0.040161133,0.015289307,0.026992798,0.021530151,0.015960693,0.010696411,-0.018310547,0.035858154,-0.0011615753,0.030853271,-0.011581421,-0.0057907104,0.011947632,0.00831604,-0.0039787292,-0.0070610046,-0.0046806335,0.009521484,0.03555298,-0.029556274,-0.00434494,-0.019073486,-0.011276245,0.024383545,-0.015792847,0.001376152,0.005443573,-0.019821167,0.016555786,-0.022827148,-0.03503418,-0.0042419434,0.02053833,-0.03930664,-0.020843506,0.012573242,0.028381348,-0.013076782,0.03488159,0.017105103,0.010932922,-0.0036411285,0.046691895,-0.008728027,0.030075073,-0.026763916,0.009277344,0.01979065,0.0101623535,-0.018554688,-0.0027675629,0.0018596649,-0.0057411194,0.020324707,0.039123535,-0.0016775131,0.008407593,-0.006099701,-0.000082075596,-0.0033416748,0.012969971,-0.013641357,0.020874023,-0.0034561157,-0.010726929,-0.0036449432,-0.00554657,-0.0053253174,0.009674072,-0.013198853,-0.013206482,0.0017690659,0.031341553,0.015022278,-0.031463623,-0.002216339,0.012298584,0.024658203,-0.024932861,-0.01473999,-0.0021858215,-0.025375366,0.00970459,0.00522995,0.006729126,0.008018494,-0.017745972,-0.0023612976,0.024841309,0.010719299,0.009109497,0.0020999908,-0.0065994263,0.028579712,-0.0047683716,-0.0058059692,-0.0059394836,-0.014343262,0.011436462,0.034057617,-0.009773254,-0.036346436,0.029663086,-0.0064086914,0.020965576,-0.00819397,-0.0088272095,0.01687622,-0.008094788,0.007972717,0.0018110275,0.017044067,-0.00623703,-0.005584717,-0.006893158,0.040618896,0.054718018,-0.027023315,-0.009552002,0.022003174,0.02166748,0.008285522,0.040496826,0.008781433,0.043304443,0.016708374,-0.026519775,-0.029846191,0.037963867,-0.008110046,-0.0234375,0.007335663,-0.014228821,-0.019821167,0.011451721,0.017303467,-0.0013332367,-0.026046753,-0.009422302,-0.016311646,-0.010681152,0.008468628,-0.02104187,0.010139465,-0.026229858,-0.0014266968,0.00032663345,-0.029663086,-0.052490234,-0.028198242,-0.006275177,-0.013954163,-0.0519104,-0.0010299683,-0.028717041,0.019226074,-0.029449463,-0.01159668,-0.01108551,0.008888245,-0.0178833,0.0064697266,0.022613525,0.021743774,0.018661499,0.012077332,0.02835083,-0.027648926,-0.018035889,-0.022888184,0.0056152344,-0.0059814453,0.020751953,0.008354187,0.04006958,0.02911377,-0.009788513,-0.0048103333,-0.011360168,0.003534317,-0.018066406,-0.020629883,-0.034057617,0.017608643,0.0090408325,-0.0051574707,-0.019073486,0.043060303,-0.033813477,-0.019561768,0.031036377,0.06008911,0.0007748604,0.01852417,-0.020812988,-0.0065078735,-0.0033779144,0.005092621,-0.001449585,0.0049934387,0.0067214966,-0.009841919,0.000834465,0.0060920715,0.033203125,-0.017837524,-0.020477295,0.015609741,-0.0018129349,-0.015899658,0.035339355,0.012634277,0.00012397766,-0.0069885254,-0.023162842,0.01499939,0.04144287,0.0181427,0.005886078,-0.003967285,0.0013122559,-0.021209717,0.003791809,0.019042969,-0.022979736,-0.040008545,-0.021453857,-0.01966858,0.017929077,0.0044784546,0.015556335,-0.015022278,0.011672974,-0.019500732,-0.010009766,-0.02923584,0.041534424,0.019088745,-0.00737381,-0.017166138,0.008522034,0.004348755,-0.04147339,-0.004550934,-0.053833008,-0.030334473,0.0040893555,-0.026229858,0.03265381,0.006538391,-0.008338928,0.00024485588,0.0021839142,-0.0064697266,-0.0031814575,0.033691406,-0.019439697,-0.005180359,0.042022705,0.02217102,-0.022918701,0.01524353,-0.013092041,-0.0005030632,0.014518738,0.004459381,0.010498047,-0.01235199,0.031585693,-0.011627197,-0.01676941,0.027023315,-0.0073165894,0.0024299622,-0.023757935,0.01675415,0.0048103333,-0.0046157837,0.043762207,-0.031097412,-0.028060913,0.003709793,-0.018112183,-0.014060974,0.006614685,0.012451172,0.02218628,0.010932922,0.04333496,-0.016174316,-0.011688232,0.011428833,0.0018129349,-0.012168884,0.011375427,0.024017334,-0.0012674332,0.0005350113,-0.00024414062,-0.019241333,-0.029708862,-0.004825592,0.025970459,-0.005504608,-0.008796692,0.025787354,0.020370483,0.05770874,-0.0024547577,0.009986877,0.0067214966,-0.0018062592,0.028167725,0.013061523,0.07006836,-0.007041931,-0.034942627,0.012840271,-0.0044937134,-0.020767212,-0.012214661,-0.0082092285,0.0067100525,-0.047698975,0.017166138,-0.00920105,0.023635864,-0.019195557,0.01386261,-0.021759033,-0.0101623535,-0.028930664,-0.014175415,-0.028533936,0.0104522705,0.024169922,0.008033752,0.037261963,0.0009560585,-0.02128601,0.0050239563,0.03729248,-0.008117676,-0.033477783,-0.015716553,0.01763916,0.0058784485,0.022949219,0.009628296,-0.027282715,-0.016418457,0.021224976,-0.0075912476,0.004196167,0.0009331703,0.0073432922,0.013328552,-0.0068473816,-0.005821228,0.028640747,-0.0048675537,0.0022525787,0.011245728,0.012741089,0.036865234,0.024169922,-0.019378662,0.013511658,0.016647339,-0.015037537,0.057495117,-0.0020771027,0.02015686,-0.020812988,0.0061073303,-0.05130005,-0.027313232,-0.020629883,0.014923096],"createdAt":"2026-04-18T19:28:37.383Z","updatedAt":"2026-04-22T20:01:46.318Z","lastSeenAt":"2026-04-22T20:01:46.318Z","tsv":"'/api/v1/wire/125':56,160 '/request':13,28 '0.02':12,27,80,152 '000':74 '20':73 '402':68 'Base network API' 'USDC micropayment API' 'accept':46 'access':62,169 'actual':199 'addit':186 'advertis':108 'ai':120 'analysi':124 'analyt':114 'api':5,20,38,61,84,110,168 'attach':93 'avail':214 'base':8,23,51,75 'behind':159 'beyond':164 'broader':106 'call':4,19,82 'caller':91,201 'categori':111 'challeng':69 'classif':127 'connect':181 'convers':144 'crawl':171 'crypto-paid API' 'data':113,117 'doc':172 'document':163,188,212 'embed':128 'endpoint':55,147,198,209 'estim':138 'exampl':193 'exchang':133 'export':118 'feed':132 'financ':129 'function':158 'gas':137 'generat':145 'geocod':142 'header':98 'howev':155 'http-post' 'i.e':79 'includ':112 'infrastructur':140 'input/output':189 'insight':119 'key':85 'know':195 'label':166 'learn':122 'limit':88 'list':58 'lowpaymentfee' 'lowpaymentfee.com':31 'machin':121 'metric':115 'multipl':109 'network':9,24,52 'no-api-key' 'opaqu':207 'page':176 'paid':208 'pay':2,17,35 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request':34 'payment':48,97,103 'per':3,18,36,81,153 'platform':6,21,39,107 'premium':60,167 'premium API access' 'price':131,150,173 'prompt':183 'proof':104 'protocol':44 'quot':136 'rate':87,134 'readm':175 'report':116 'request':37,70,154 'requir':90 'return':64,178,200 'schema':190 'sentiment':123 'simpli':92 'specif':54,157 'standard':66 'summar':126 'technic':187 'text':125 'token':135 'treat':203 'uniform':149 'unit':76 'usag':192 'usdc':15,30,47,78 'usdc-base-network' 'use':41 'util':141 'valid':101,143 'via':10,25 'wallet':182 'web3':130 'without':194 'x':96 'x-payment':95 'x402':11,26,43,67,102 'x402 API' 'x402-payment'","prices":[{"id":"6e6f04b2-cf7c-4260-b8b3-135a5ffd0a98","listingId":"1871d136-a06d-4c5c-a62c-45c5e244cdfc","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/wire/125","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:37.383Z"}],"sources":[{"listingId":"1871d136-a06d-4c5c-a62c-45c5e244cdfc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/125","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:37.383Z","lastSeenAt":"2026-04-22T20:01:46.318Z"}],"details":{"listingId":"1871d136-a06d-4c5c-a62c-45c5e244cdfc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/125 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge requesting up to 20,000 base units of USDC ($0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/wire/125"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/125"},{"claim":"Available API categories include Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure","source_url":"https://lowpaymentfee.com"}],"useCases":["Programmatic access to a paid API endpoint without traditional API key registration","Agent-driven workflows that need to pay per call using USDC on Base","Testing x402 protocol integrations with a low-cost endpoint"],"bestFor":["Developers experimenting with x402 payment protocol","AI agents that can autonomously pay for API calls via crypto","Users who want no-signup, no-rate-limit API access"],"notFor":["Users who need detailed documentation or guaranteed SLAs before integrating","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.701Z"},"updatedAt":"2026-04-22T20:01:46.318Z"}}