{"id":"01339c57-0c2e-436e-bafc-08a4311b1fc6","shortId":"jsenrF","kind":"x402","title":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.","tagline":"x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.","description":"lowpaymentfee.com is a collection of x402-protocol pay-per-call API endpoints hosted on the Base network. The specific endpoint `/api/v1/benefits/75` is listed as \"Premium API Access\" and returns a 402 challenge requesting payment in USDC (contract 0x8335…2913 on Base). The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. Payment is made via the x402 exact scheme with no API keys or rate limits required.\n\nThe broader lowpaymentfee.com platform advertises endpoints across four categories: 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\nThe `/api/v1/benefits/75` endpoint itself does not have detailed documentation beyond the title \"Premium API Access.\" There is no OpenAPI schema, no request/response examples, and the crawled docs, pricing, and API pages all returned only a \"Connect wallet\" prompt with no additional content. The exact functionality behind this specific endpoint path is unclear — it may be a generic or placeholder route. Agents should be aware that the actual response payload and input parameters are undocumented.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-settlement","base-network","no-api-key","no-rate-limit","json-response"],"categories":["api-gateway","infrastructure"],"synonyms":["pay-per-call API","x402 API","micropayment API","USDC API access","Base network API","low fee API","premium endpoint"],"warnings":["No documentation available for this specific endpoint — functionality is unknown","No OpenAPI or input/output schema provided","Docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no useful content","The endpoint path '/api/v1/benefits/75' does not match any of the advertised API categories on the homepage"],"endpointUrl":"https://lowpaymentfee.com/api/v1/benefits/75","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/benefits/75","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 pricing and payment details. However, there is no OpenAPI schema, no request/response examples, and no documentation beyond the endpoint title. The crawled docs/pricing/API pages are empty (wallet-connect only). The actual functionality of /api/v1/benefits/75 is entirely undocumented, 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":"2026-04-19T17:49:44.421Z","embedding":[-0.017105103,-0.025634766,0.05911255,0.02822876,0.011062622,-0.023742676,-0.020812988,0.041107178,0.07434082,-0.06573486,0.0390625,-0.054992676,-0.02532959,-0.02407837,-0.029800415,0.0027713776,-0.013381958,0.0071525574,-0.059448242,0.030273438,0.039367676,0.00052547455,-0.011123657,0.04248047,0.015823364,-0.022247314,0.0031375885,-0.022964478,-0.006778717,-0.031555176,0.03189087,-0.025375366,-0.002620697,0.010055542,-0.013961792,-0.0076675415,-0.002090454,0.0423584,0.027694702,-0.011131287,-0.0037498474,-0.047088623,0.006832123,-0.0015907288,-0.05218506,-0.009544373,0.018569946,-0.018997192,-0.015197754,0.000313282,-0.04147339,-0.011146545,-0.008132935,0.0018901825,0.018539429,0.008476257,-0.00843811,-0.016784668,0.00995636,0.0072631836,-0.013404846,-0.060791016,-0.023849487,0.012390137,0.0077171326,0.0552063,-0.0090408325,0.03817749,0.0064888,0.054626465,0.038330078,0.060821533,0.03387451,0.019195557,-0.0031318665,-0.006652832,0.0015230179,0.056610107,-0.010406494,-0.019744873,-0.010696411,-0.012794495,-0.05569458,-0.0005917549,-0.0056610107,-0.04864502,-0.024383545,0.0026168823,-0.019866943,0.036102295,-0.07208252,-0.020370483,-0.02432251,0.0052871704,0.008888245,-0.000004529953,-0.012718201,0.014457703,-0.0060195923,0.009063721,0.0047302246,-0.04324341,0.015716553,0.03729248,0.059936523,0.03894043,0.015899658,0.029083252,0.014640808,-0.012260437,-0.01651001,0.008308411,-0.020706177,-0.0032043457,0.024368286,0.004924774,-0.02230835,0.026550293,-0.013702393,0.020385742,-0.053741455,0.052612305,0.024627686,-0.021636963,0.006942749,-0.043029785,-0.0033283234,0.01285553,-0.02532959,-0.012962341,0.018661499,0.009880066,0.03942871,-0.018875122,-0.037017822,0.008117676,-0.009361267,-0.03338623,-0.054840088,-0.022949219,0.032409668,-0.030197144,0.03363037,0.022537231,-0.099853516,-0.0034370422,-0.046844482,0.0065841675,-0.035064697,0.00024175644,-0.016098022,0.026870728,-0.016662598,-0.01638794,-0.015434265,-0.028121948,-0.006362915,0.02607727,-0.01108551,0.04586792,-0.01309967,0.02420044,0.0103302,0.0057754517,0.030700684,0.04562378,-0.0025558472,-0.0803833,-0.085632324,-0.029022217,-0.0033817291,-0.017593384,-0.040100098,0.0032615662,0.0061798096,-0.08843994,-0.0262146,-0.014709473,0.0020637512,-0.02355957,0.0034008026,-0.022842407,0.008850098,-0.015274048,-0.06286621,-0.029220581,-0.029754639,0.07312012,0.011077881,0.01940918,0.027786255,-0.018249512,0.06854248,0.0131073,-0.0234375,-0.02406311,0.015701294,-0.033325195,0.020339966,0.004760742,0.008636475,-0.052520752,0.050689697,0.056640625,0.00061798096,-0.012748718,-0.0063209534,-0.043884277,-0.02659607,-0.025878906,0.009155273,0.018966675,-0.0018224716,0.044036865,-0.02268982,-0.03656006,-0.0061683655,-0.00058603287,0.027740479,0.064697266,0.011665344,-0.013694763,0.0077552795,0.01864624,-0.05105591,0.030807495,0.035858154,0.022979736,-0.032318115,-0.01689148,0.02444458,0.036254883,-0.024505615,-0.0016384125,-0.026428223,0.019943237,0.0008816719,-0.0031223297,0.033355713,-0.022659302,-0.03463745,-0.030578613,-0.013069153,0.02545166,0.0019006729,-0.031707764,-0.041931152,-0.06854248,0.02609253,0.049102783,0.028640747,0.0013360977,0.010726929,-0.03262329,-0.01600647,-0.06072998,0.060455322,0.07299805,-0.0058670044,-0.010871887,0.039764404,-0.014877319,-0.01663208,-0.01776123,-0.0028743744,-0.023071289,-0.032470703,0.0082473755,-0.038146973,0.01171875,0.02822876,0.028274536,0.055114746,-0.018478394,-0.044799805,-0.017745972,0.00655365,-0.0013771057,-0.0143585205,-0.010353088,-0.013648987,0.014160156,0.026565552,-0.009544373,0.038391113,-0.0087509155,0.015625,0.00036382675,-0.015525818,-0.020965576,-0.020965576,0.03543091,0.0013074875,-0.07562256,0.011947632,0.004047394,0.056152344,-0.04208374,0.04071045,-0.017593384,0.010467529,0.073791504,-0.020614624,-0.037841797,0.018325806,0.021759033,0.042541504,0.039093018,0.0067443848,-0.011459351,-0.001663208,0.05609131,-0.010047913,0.0015640259,0.006286621,0.013328552,0.028503418,0.00044441223,-0.054748535,-0.022033691,-0.013877869,-0.03479004,0.020187378,-0.03503418,0.030059814,-0.016464233,0.00017559528,-0.024017334,-0.0012168884,-0.04953003,0.024871826,-0.011405945,-0.0018854141,-0.0048446655,-0.021209717,0.020568848,0.022201538,-0.019302368,0.0015516281,0.036895752,0.02015686,-0.010818481,-0.04058838,-0.02330017,-0.017044067,0.012481689,0.03744507,0.034820557,0.018692017,0.044647217,-0.030334473,0.010787964,0.03326416,0.02281189,0.032836914,-0.014846802,0.023513794,-0.0541687,-0.052337646,-0.020965576,-0.049468994,0.027236938,0.010177612,0.010948181,0.047973633,0.018188477,-0.012649536,-0.036346436,0.04144287,-0.03591919,0.006095886,0.037017822,-0.009628296,-0.03970337,0.0074310303,0.013313293,0.008857727,0.038269043,0.012176514,0.004272461,0.06149292,0.033203125,0.005332947,0.017822266,0.018157959,0.019515991,-0.0015735626,-0.020141602,-0.030807495,-0.019424438,0.02659607,-0.0082473755,-0.021743774,-0.08312988,0.04598999,0.03942871,0.062561035,0.017959595,0.01209259,0.030303955,-0.010269165,-0.0014562607,-0.019332886,-0.015045166,-0.031341553,-0.0423584,0.018096924,-0.009513855,0.0069389343,-0.027618408,0.03378296,0.009300232,0.015487671,-0.036346436,0.055236816,-0.006088257,-0.018585205,0.022445679,0.0044784546,0.044677734,0.054382324,-0.048583984,0.027801514,0.023269653,-0.03353882,-0.0013799667,0.033081055,-0.0049552917,-0.013694763,-0.068725586,-0.03652954,-0.002462387,-0.019683838,-0.04550171,-0.006324768,0.010246277,0.025268555,0.019729614,-0.019165039,-0.022506714,-0.0058174133,-0.02418518,-0.04864502,-0.009933472,-0.034240723,0.01777649,0.055999756,-0.014526367,0.0054740906,0.0038261414,-0.014793396,-0.014038086,0.022766113,0.006439209,-0.0025901794,-0.043060303,0.023284912,-0.00049066544,0.011352539,0.025390625,0.024597168,0.035186768,0.01727295,0.059448242,0.008453369,-0.009963989,-0.05709839,0.0003581047,-0.053985596,0.0021247864,-0.0015420914,-0.01448822,0.0055236816,-0.020019531,-0.019851685,-0.017669678,-0.0019664764,-0.035003662,0.017105103,0.02810669,-0.031982422,-0.036346436,-0.06451416,-0.022415161,0.011367798,0.06707764,0.04208374,0.0026721954,-0.06298828,-0.026062012,0.021408081,-0.0034675598,0.017440796,-0.01676941,-0.002336502,-0.018692017,-0.047607422,-0.019439697,-0.034088135,0.02558899,0.0018281937,-0.040985107,0.01525116,-0.005393982,0.021621704,0.0028018951,0.008232117,0.022750854,-0.029937744,0.007194519,-0.040252686,0.024429321,0.008277893,0.0019950867,-0.04107666,0.052581787,0.018508911,0.036987305,-0.043640137,0.002105713,-0.0015611649,0.023498535,0.020446777,-0.017547607,-0.015777588,-0.0029087067,-0.044647217,-0.078308105,0.04006958,-0.021606445,0.02658081,0.00022304058,0.01675415,0.03265381,-0.0011091232,-0.010932922,0.028503418,-0.0234375,-0.004272461,-0.031829834,-0.03604126,-0.019195557,0.007633209,-0.011039734,0.015182495,-0.026535034,0.012466431,-0.0058937073,-0.020187378,0.01626587,0.010795593,0.0031166077,0.03475952,0.0033302307,0.019729614,0.040893555,0.009170532,-0.026138306,0.02255249,0.0042800903,-0.0025043488,-0.0057411194,0.035125732,0.027252197,-0.023773193,-0.011131287,-0.0016965866,-0.006465912,-0.025894165,-0.007347107,-0.0030651093,0.036743164,0.011810303,-0.0413208,0.018920898,0.009292603,-0.029464722,-0.012710571,0.017028809,0.0234375,-0.03491211,0.014198303,0.019073486,0.05291748,-0.03338623,-0.010017395,0.009178162,0.026275635,0.02507019,0.019058228,-0.011772156,0.018325806,-0.010368347,0.012374878,-0.00015592575,-0.0062828064,-0.00065517426,-0.008705139,0.022903442,0.033081055,0.019882202,-0.030410767,-0.027908325,0.0019760132,-0.006351471,-0.02609253,0.020599365,0.024551392,0.0076446533,-0.012992859,0.023208618,0.023132324,-0.033569336,-0.018951416,-0.021728516,0.043670654,-0.021987915,-0.006259918,0.015113831,0.00022542477,0.027740479,-0.04220581,-0.00040006638,0.006324768,0.019378662,-0.0154418945,-0.04171753,-0.039367676,-0.0065078735,0.021850586,0.0027389526,0.0134887695,0.026733398,-0.0028457642,0.013267517,0.012123108,0.004261017,-0.015571594,-0.025634766,-0.0501709,-0.010688782,-0.0051651,-0.00605011,-0.03881836,0.002105713,-0.020828247,-0.037994385,0.00069379807,-0.013656616,-0.009597778,-0.010772705,0.01146698,0.021881104,0.008491516,0.018478394,-0.015068054,-0.028808594,0.012512207,0.005870819,0.017684937,-0.050109863,0.005748749,-0.022384644,-0.000998497,-0.008972168,0.018707275,0.022506714,0.031402588,0.0011386871,0.016906738,-0.049194336,0.03555298,-0.026351929,0.019348145,0.008926392,-0.0446167,-0.014045715,-0.023880005,-0.02406311,0.034576416,-0.017623901,0.0011291504,-0.028396606,-0.02281189,-0.02154541,-0.039642334,0.015335083,0.034179688,0.03918457,-0.024612427,-0.002439499,0.008682251,0.0072364807,-0.0061187744,0.0057411194,0.006450653,0.026657104,0.024368286,0.0028438568,-0.03729248,-0.02468872,-0.0025177002,-0.007949829,-0.047790527,-0.05126953,-0.024429321,0.012924194,-0.007797241,0.0026607513,-0.021209717,-0.017822266,0.0076675415,-0.033172607,0.0047416687,0.012458801,0.025894165,0.011672974,-0.023880005,0.0066719055,0.029830933,-0.026275635,0.03543091,0.009803772,-0.00078725815,-0.039001465,0.0128479,0.026733398,0.01763916,-0.0048675537,-0.011795044,0.0066337585,-0.021255493,-0.05706787,0.000872612,-0.009025574,0.0014467239,-0.0018320084,-0.011566162,-0.054138184,-0.017715454,-0.018218994,0.012489319,0.022644043,0.01651001,0.017303467,-0.009552002,0.016113281,-0.01914978,0.00088119507,-0.04171753,0.020339966,0.012664795,-0.006980896,0.011077881,0.056854248,0.008964539,-0.012367249,-0.0015239716,0.0071868896,0.013031006,-0.022766113,0.015777588,-0.012802124,0.0042800903,0.0068855286,-0.023803711,-0.043792725,0.0010757446,0.082214355,-0.004386902,-0.0012655258,-0.016113281,-0.0070724487,0.012031555,0.03463745,-0.042999268,-0.016937256,-0.039367676,0.016082764,-0.020111084,0.023132324,0.01020813,0.01550293,-0.017593384,-0.056396484,-0.006706238,0.010223389,-0.006504059,-0.050720215,-0.017120361,-0.03970337,-0.006084442,-0.01260376,-0.02243042,-0.0014839172,0.01953125,-0.0075569153,-0.08618164,0.012145996,0.05505371,0.0074920654,0.01965332,-0.0211792,0.01777649,0.026748657,-0.028320312,-0.01751709,0.02279663,-0.02319336,-0.012138367,-0.02897644,0.029312134,-0.021224976,-0.028579712,0.019104004,0.011795044,0.018981934,-0.007499695,0.005973816,-0.0055122375,0.014930725,-0.014862061,0.019012451,-0.010307312,-0.008049011,0.027511597,-0.050048828,0.017791748,0.011238098,-0.011039734,-0.0033283234,0.018554688,0.039855957,-0.04232788,-0.010848999,0.032592773,0.012954712,0.040802002,-0.03100586,0.04953003,0.024642944,-0.016921997,0.0231781,-0.019943237,-0.03540039,-0.046691895,-0.028778076,0.008705139,0.015991211,0.012046814,-0.018341064,-0.005241394,0.02772522,-0.010169983,0.00806427,-0.009796143,-0.025802612,-0.023071289,0.008331299,0.006248474,-0.0014877319,-0.008140564,0.023880005,0.017852783,0.051849365,0.0038375854,-0.011436462,0.014007568,0.012268066,-0.020477295,0.010169983,0.01499939,0.013954163,0.014862061,0.017425537,0.005458832,-0.034301758,-0.021484375,-0.029968262,-0.026748657,0.0127334595,0.005466461,-0.005443573,0.0005450249,0.004852295,-0.0036182404,-0.040740967,0.014831543,-0.024337769,-0.03253174,0.00062322617,-0.016174316,0.001080513,0.0071754456,-0.00598526,0.0072288513,0.0010766983,0.056732178,0.005180359,-0.0014896393,0.01727295,0.0423584,0.0115737915,-0.03326416,-0.00092983246,0.002084732,-0.01802063,0.00066185,-0.021530151,0.013717651,0.03427124,-0.029754639,0.005935669,-0.00037002563,0.02532959,-0.0028743744,0.008125305,-0.0011386871,0.0101623535,-0.02154541,0.042419434,-0.0473938,0.0061836243,0.01966858,0.011932373,-0.002855301,-0.01878357,-0.04473877,0.01902771,-0.0046463013,-0.014205933,0.03930664,-0.0073280334,0.026306152,-0.028717041,-0.017608643,0.0072631836,-0.021530151,-0.018630981,0.048706055,-0.0011196136,-0.0042304993,0.020767212,-0.020599365,0.033691406,-0.044403076,0.019683838,-0.0030269623,-0.013122559,-0.0033245087,-0.021224976,-0.015625,-0.001461029,-0.012611389,-0.011405945,-0.0040740967,0.048095703,0.022659302,0.031341553,0.03466797,0.014808655,0.0028858185,-0.046844482,-0.037200928,0.0021820068,-0.023971558,0.031173706,-0.021896362,0.043792725,0.043395996,-0.0037498474,0.034820557,0.03942871,0.020492554,-0.001124382,0.0154418945,-0.0030918121,0.013130188,-0.008834839,0.030776978,0.00040245056,0.05090332,-0.027664185,0.01586914,0.006175995,0.02381897,-0.01586914,0.032714844,0.0803833,0.0284729,-0.0050849915,0.037750244,-0.0017108917,-0.017059326,-0.0055122375,-0.028381348,0.059326172,0.0032920837,0.049591064,0.041259766,0.016998291,-0.014289856,0.027175903,-0.02583313,-0.040649414,0.058624268,0.026443481,-0.016052246,-0.0073394775,-0.015625,0.008415222,-0.047180176,-0.025772095,0.018737793,-0.00093746185,0.0067100525,-0.016342163,-0.0016613007,-0.018936157,0.026748657,0.015960693,0.01751709,-0.012802124,0.020339966,0.026977539,0.010261536,0.031585693,0.0034484863,0.03427124,-0.01864624,-0.021011353,0.007751465,0.021408081,0.00016462803,-0.0015239716,0.018173218,0.015914917,0.04168701,0.0413208,-0.017196655,-0.008171082,0.029632568,0.018951416,0.00031113625,0.035491943,0.026565552,0.007904053,0.034973145,0.04559326,0.028076172,-0.03152466,0.017608643,-0.010215759,0.011245728,0.003408432,-0.018249512,0.008262634,-0.013961792,0.01373291,-0.00015306473,-0.0045547485,0.021697998,0.029754639,0.003610611,0.0011348724,-0.009315491,-0.0016460419,-0.012413025,0.0065574646,0.011734009,-0.016418457,0.015266418,0.013282776,0.03414917,-0.014541626,0.019989014,-0.002822876,-0.019348145,-0.011360168,0.019073486,-0.041656494,0.0006837845,-0.0004427433,-0.0028648376,-0.04119873,0.01889038,0.02494812,-0.006324768,0.038360596,0.013923645,-0.0011987686,-0.00046563148,0.021469116,0.016296387,-0.017715454,-0.016235352,-0.015014648,0.035247803,0.04296875,0.0006761551,0.012107849,-0.009895325,-0.0054740906,0.010787964,-0.005432129,0.0013380051,-0.015388489,-0.0042304993,-0.039916992,0.012138367,0.03604126,0.017242432,0.037963867,-0.01007843,-0.011482239,0.0057029724,0.031829834,0.0069236755,0.0066375732,-0.011161804,0.022857666,-0.012786865,0.04067993,0.035461426,-0.0066223145,0.024673462,-0.023468018,-0.012756348,0.00548172,-0.005882263,0.02746582,-0.0021514893,0.0072288513,-0.0101623535,0.02015686,-0.019577026,-0.043151855,0.008468628,-0.019119263,-0.0129776,-0.0236969,0.009788513,-0.0016489029,0.014419556,0.04272461,0.017593384,-0.028945923,0.068481445,-0.006034851,0.051757812,-0.01676941,-0.0009689331,0.05609131,0.049346924,0.035949707,0.028533936,0.029693604,-0.035247803,0.0032367706,0.04067993,0.021316528,0.011299133,0.010894775,-0.02104187,0.039642334,0.003643036,0.03050232,-0.016418457,0.0018701553,0.017654419,-0.0058784485,-0.010444641,0.0022258759,0.005596161,0.019683838,0.040802002,-0.02911377,-0.0076675415,-0.020584106,-0.010810852,0.02986145,-0.0056037903,0.0012168884,-0.008384705,-0.02067566,0.014457703,-0.028778076,-0.02003479,0.015556335,0.022949219,-0.039886475,-0.0026073456,0.0008368492,0.023849487,-0.029083252,0.0256958,0.020050049,-0.00026392937,0.009300232,0.05166626,-0.003967285,0.040496826,-0.014503479,0.026733398,0.039123535,0.0017061234,-0.029724121,0.014083862,0.0071754456,-0.019180298,0.00843811,0.03100586,-0.012428284,0.012245178,0.003572464,-0.015838623,0.0062065125,0.01889038,-0.0027866364,0.0022945404,0.0044555664,-0.013648987,-0.0020160675,-0.0010137558,0.007637024,0.009727478,-0.0048065186,-0.0140686035,0.0063056946,0.03186035,0.011962891,-0.031921387,-0.0022907257,0.0121154785,0.023742676,-0.02180481,-0.02633667,-0.00907135,-0.031082153,0.01725769,0.022750854,0.0050964355,0.0054855347,-0.017333984,-0.0009384155,0.020126343,0.0040779114,0.008781433,0.0018224716,0.0031318665,0.014846802,-0.025344849,0.0027599335,-0.006755829,-0.0022506714,0.024002075,0.014015198,-0.017364502,-0.03250122,0.009216309,-0.005794525,0.01260376,-0.0010871887,-0.008903503,0.027526855,-0.011177063,-0.005092621,-0.0015249252,0.015289307,-0.005252838,-0.02609253,-0.020324707,0.028747559,0.060333252,-0.011138916,-0.010147095,0.016174316,0.019546509,0.022003174,0.03463745,0.011016846,0.038146973,0.024520874,-0.019760132,-0.028015137,0.021118164,0.00051498413,-0.038116455,0.019561768,-0.0021629333,-0.014526367,0.01777649,0.00466156,-0.004306793,-0.017166138,-0.020126343,-0.026016235,-0.021728516,0.032440186,-0.013969421,0.0047836304,-0.020370483,-0.007835388,0.008705139,-0.014831543,-0.03945923,-0.029327393,-0.0051460266,-0.01158905,-0.044799805,0.013542175,-0.023330688,0.005252838,-0.00919342,0.013450623,-0.013900757,0.04135132,-0.00015425682,-0.0016021729,0.014945984,0.030166626,0.008621216,0.01789856,0.021911621,-0.021606445,-0.024765015,-0.017364502,-0.004081726,-0.003326416,0.014503479,-0.012878418,0.046875,0.0072517395,-0.005973816,-0.00069379807,-0.0051651,-0.016296387,-0.0035209656,-0.035339355,-0.00737381,0.012535095,0.025299072,-0.012107849,-0.014656067,0.051818848,-0.012802124,-0.020645142,0.019805908,0.026809692,0.009170532,0.025253296,-0.018478394,-0.014778137,-0.010002136,0.0005559921,-0.017608643,-0.002910614,0.017974854,0.010574341,-0.00091838837,0.0047569275,0.012901306,-0.01386261,-0.0028095245,0.01146698,-0.010932922,-0.00894165,0.03741455,0.012191772,-0.0020484924,-0.015434265,-0.014656067,0.011726379,0.049072266,0.018859863,0.009536743,-0.0149002075,0.013763428,-0.013717651,0.012580872,0.02267456,-0.02142334,-0.02142334,-0.024230957,-0.026794434,0.02519226,0.001241684,0.014350891,-0.005466461,0.0128479,-0.015319824,-0.029220581,-0.01637268,0.016540527,-0.0005788803,-0.013557434,-0.005584717,-0.0008382797,0.005241394,-0.024154663,-0.0019168854,-0.040740967,-0.025817871,-0.01550293,-0.029159546,0.009590149,0.012550354,-0.012336731,0.0008664131,-0.012496948,-0.011421204,-0.0026283264,0.02508545,-0.021820068,-0.0003502369,0.013412476,0.011421204,-0.0206604,0.020568848,-0.015510559,-0.012168884,0.022277832,-0.0038471222,0.010322571,-0.025375366,0.015304565,0.011566162,-0.005554199,0.033416748,0.010314941,0.005897522,-0.02255249,0.0047454834,0.004470825,-0.00831604,0.031311035,-0.01789856,-0.035247803,0.0033130646,-0.0209198,-0.040649414,0.005378723,0.04046631,0.043304443,-0.009628296,0.044128418,-0.0037288666,-0.01852417,0.0039634705,0.020629883,-0.020690918,-0.0059013367,0.034301758,0.007850647,-0.002735138,0.011268616,-0.010093689,-0.02949524,-0.005016327,0.01902771,-0.010864258,-0.009788513,0.03945923,0.014427185,0.046936035,-0.00038862228,0.023590088,0.028579712,0.0066871643,0.03756714,0.0027370453,0.050842285,0.005748749,-0.04373169,-0.003211975,0.0023117065,-0.0040016174,-0.009567261,0.0026893616,0.0015573502,-0.03579712,0.019454956,0.0063667297,0.03994751,-0.026138306,0.014579773,-0.018035889,-0.012870789,-0.029968262,-0.008010864,-0.023773193,0.0032138824,0.031402588,0.018188477,0.017318726,0.016036987,-0.02696228,0.034179688,0.044311523,-0.0008678436,-0.034606934,-0.015266418,0.010719299,0.005355835,-0.0064086914,0.025970459,-0.028945923,-0.013618469,0.004676819,-0.030883789,0.013122559,0.008468628,0.02520752,0.01133728,-0.015525818,-0.015991211,0.024871826,-0.003648758,0.000644207,0.01146698,0.00881958,0.032165527,0.027694702,-0.0066871643,0.016693115,0.026779175,-0.03970337,0.045684814,-0.017105103,0.0154418945,-0.023590088,0.006023407,-0.034484863,-0.009140015,-0.016738892,0.011405945],"createdAt":"2026-04-18T20:29:38.311Z","updatedAt":"2026-04-22T05:31:54.730Z","lastSeenAt":"2026-04-22T05:31:54.730Z","tsv":"'/api/v1/benefits/75':61,169 '0.02':10,29,99,165 '000':90 '0x8335':78 '20':89 '2913':79 '402':71 '6':95 'Base network API' 'USDC API access' 'access':6,25,67,182 'across':123 'actual':234 'addit':208 'advertis':121 'agent':228 'ai':133 'amount':84 'analysi':137 'analyt':127 'api':5,24,51,66,111,181,197 'awar':231 'base':8,27,56,81,91 'base-network' 'behind':213 'beyond':177 'broader':118 'call':50,87 'categori':125 'challeng':72 'classif':140 'collect':42 'connect':203 'content':209 'contract':77 'convers':157 'crawl':193 'data':126,130 'decim':96 'detail':175 'doc':194 'document':176 'embed':141 'endpoint':52,60,122,160,170,216 'equal':98 'estim':151 'exact':107,211 'exampl':190 'exchang':146 'export':131 'feed':145 'financ':142 'four':124 'function':212 'gas':150 'gate':3,22 'generat':158 'generic':224 'geocod':155 'host':53 'infrastructur':153 'input':238 'insight':132 'json-response' 'key':16,35,112 'learn':135 'limit':19,38,115 'list':63 'low fee API' 'lowpaymentfee.com':39,119 'machin':134 'made':103 'maximum':83 'may':221 'metric':128 'micropayment API' 'network':57 'no-api-key' 'no-rate-limit' 'openapi':186 'page':198 'paramet':239 'path':217 'pay':9,28,48 'pay-per-cal':47 'pay-per-call API' 'pay-per-request' 'payload':236 'payment':74,101 'per':11,30,49,86,166 'placehold':226 'platform':120 'premium':4,23,65,180 'premium endpoint' 'price':144,163,195 'prompt':205 'protocol':46 'quot':149 'rate':18,37,114,147 'report':129 'request':12,31,73,167 'request/response':189 'requir':85,116 'respons':235 'return':69,200 'rout':227 'schema':187 'scheme':108 'sentiment':136 'specif':59,215 'summar':139 'text':138 'titl':179 'token':148 'unclear':219 'undocu':241 'uniform':162 'unit':92 'usd':100 'usdc':14,33,76,94 'usdc-settlement' 'util':154 'valid':156 'via':104 'wallet':204 'web3':143 'x402':2,21,45,106 'x402 API' 'x402-gated':1,20 'x402-payment' 'x402-protocol':44","prices":[{"id":"940ea77e-7bbc-4fec-9166-8c1726a57da2","listingId":"01339c57-0c2e-436e-bafc-08a4311b1fc6","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/benefits/75","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T20:29:38.311Z"}],"sources":[{"listingId":"01339c57-0c2e-436e-bafc-08a4311b1fc6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/benefits/75","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T20:29:38.311Z","lastSeenAt":"2026-04-22T05:31:54.730Z"}],"details":{"listingId":"01339c57-0c2e-436e-bafc-08a4311b1fc6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/benefits/75 \\\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 endpoint returns a 402 challenge requesting 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/benefits/75"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/benefits/75"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Programmatic access to a premium API endpoint without needing API keys or subscriptions","Agent-driven workflows that pay per call using USDC on Base","Testing x402 payment protocol integrations with a low-cost endpoint"],"bestFor":["Developers experimenting with x402 pay-per-call protocols","AI agents that need keyless, on-demand API access settled in crypto","Low-volume or sporadic API consumers who prefer pay-as-you-go pricing"],"notFor":["Users who need detailed API documentation or guaranteed SLAs","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:25.437Z"},"updatedAt":"2026-04-22T05:31:54.730Z"}}