{"id":"e2d23dba-4dea-4bdf-9fd0-783081d73ee0","shortId":"zcxSdC","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/claims/45` is listed as \"Premium API Access\" and returns a 402 challenge requesting up to 20,000 base units of USDC (i.e., $0.02) per call. The platform advertises no API keys, no rate limits, and instant access — you simply attach an x402 payment header to each request.\n\nThe broader platform offers 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 priced at $0.02 per request.\n\nHowever, the specific `/api/v1/claims/45` endpoint does not appear in the site's listed API catalog, and its actual functionality is unclear — the description is simply \"Premium API Access\" with no further documentation. The docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no detailed documentation available for any endpoint.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","no-api-key","json-response"],"categories":["api-platform","misc"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","low payment fee API","402 payment protocol"],"warnings":["The endpoint /api/v1/claims/45 is not listed in the site's own API catalog — its purpose is unclear.","No documentation is available: /docs, /pricing, /api, and /README all render only a 'Connect wallet' prompt.","No OpenAPI schema or request/response examples exist for any endpoint.","Actual functionality behind 'Premium API Access' is unspecified — could be anything."],"endpointUrl":"https://lowpaymentfee.com/api/v1/claims/45","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/claims/45","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the specific /api/v1/claims/45 endpoint is not listed in the site's own catalog. Its actual functionality 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":"2026-04-19T04:18:33.068Z","embedding":[-0.029373169,-0.033294678,0.035247803,0.022216797,0.009689331,-0.028045654,-0.026809692,0.01953125,0.07330322,-0.06945801,0.032165527,-0.059936523,-0.02406311,-0.021514893,-0.027770996,0.015472412,-0.00919342,0.0066184998,-0.029647827,0.021957397,0.020812988,-0.0008044243,-0.039215088,0.01210022,0.003900528,-0.012954712,-0.0061302185,-0.020339966,-0.017364502,-0.030578613,0.03842163,-0.023132324,-0.005970001,0.011299133,-0.019622803,-0.011238098,0.00000846386,0.025161743,0.029373169,-0.0010728836,0.0013065338,-0.049072266,0.009643555,-0.018112183,-0.04949951,0.009399414,0.02243042,-0.01626587,0.00090265274,-0.014152527,-0.030349731,-0.0141067505,-0.023956299,0.012817383,0.010910034,0.013755798,0.0037574768,-0.0007958412,0.012542725,0.009994507,-0.012832642,-0.05810547,-0.028747559,-0.006969452,0.0045433044,0.06365967,-0.010398865,0.0368042,0.007167816,0.06225586,0.03338623,0.049987793,0.037322998,0.011528015,-0.008163452,-0.009361267,0.00071287155,0.058746338,-0.009277344,-0.025726318,-0.014076233,-0.0051651,-0.05444336,0.009880066,-0.01121521,-0.044677734,-0.017150879,0.02558899,-0.017486572,0.025650024,-0.066345215,-0.0052108765,-0.0067214966,-0.017166138,0.0029964447,0.0037288666,0.004688263,0.04058838,-0.010749817,0.010231018,-0.0040130615,-0.05053711,0.029342651,0.014953613,0.036956787,0.05545044,0.024795532,0.021148682,0.022384644,0.009513855,-0.0158844,0.013946533,-0.024917603,-0.012466431,0.013702393,-0.0045776367,-0.011253357,0.016174316,-0.027770996,0.022216797,-0.06365967,0.04989624,0.010765076,0.0054473877,0.0023002625,-0.037261963,-0.012199402,0.017486572,-0.0309906,-0.0016469955,0.012611389,0.00995636,0.02178955,-0.021377563,-0.03579712,0.013023376,-0.018707275,-0.024154663,-0.048736572,-0.023986816,0.032714844,-0.027618408,0.021820068,0.04437256,-0.11694336,-0.00818634,-0.041412354,0.0019512177,-0.02709961,-0.005680084,0.002796173,0.042663574,-0.012741089,-0.0027618408,-0.033599854,-0.027618408,-0.0043640137,0.025100708,-0.012359619,0.050964355,-0.015327454,0.024032593,0.028213501,0.011978149,0.02029419,0.023452759,-0.0006766319,-0.072265625,-0.08026123,-0.02027893,-0.016937256,-0.018798828,-0.030944824,0.0121154785,0.0017871857,-0.06890869,-0.013946533,-0.016235352,0.005821228,-0.04135132,0.0012493134,-0.0184021,0.02331543,-0.0135269165,-0.060028076,-0.020065308,-0.015060425,0.06173706,0.027404785,0.029647827,0.022094727,-0.03579712,0.05718994,0.020507812,-0.027999878,-0.016159058,0.0154953,-0.016342163,0.0039634705,-0.0049476624,0.014450073,-0.03817749,0.04031372,0.06970215,-0.0026340485,-0.012870789,-0.014984131,-0.06732178,-0.0357666,-0.020980835,0.014526367,0.010536194,0.004032135,0.038146973,-0.036102295,-0.033050537,-0.0010976791,0.01159668,0.018569946,0.062194824,0.009277344,-0.012382507,0.03062439,0.014053345,-0.060272217,0.038635254,0.0340271,0.012611389,-0.027404785,-0.024230957,0.024963379,0.042633057,-0.020095825,0.0107803345,-0.025650024,0.026260376,-0.010253906,0.00315094,0.02331543,-0.028747559,-0.022567749,-0.035888672,-0.024337769,0.03173828,0.009994507,-0.031707764,-0.03466797,-0.07354736,0.048431396,0.040496826,0.028076172,0.019577026,0.022155762,-0.02078247,0.00069999695,-0.060394287,0.062927246,0.06341553,-0.0013561249,-0.009666443,0.02810669,-0.02178955,-0.028625488,0.0032577515,-0.02305603,-0.035949707,-0.023971558,0.0046806335,-0.046661377,0.0017385483,0.024551392,0.027893066,0.046417236,-0.011154175,-0.03869629,-0.017059326,-0.0015630722,-0.0061798096,-0.017944336,0.0013895035,-0.012702942,0.017684937,0.0075531006,0.0046157837,0.024398804,-0.0041007996,-0.003967285,-0.0017004013,-0.007297516,-0.010543823,-0.03970337,0.01309967,-0.010543823,-0.05090332,-0.004383087,0.009300232,0.07397461,-0.051086426,0.035461426,-0.005874634,0.0104904175,0.0725708,-0.0118637085,-0.047180176,-0.000034213066,0.023544312,0.034332275,0.05142212,0.020248413,-0.026367188,-0.022750854,0.061584473,-0.0010108948,-0.0072898865,0.026138306,0.008491516,0.03994751,-0.014595032,-0.060424805,-0.035949707,-0.006679535,-0.043304443,0.020721436,-0.01979065,0.016830444,-0.011650085,-0.000001013279,-0.021240234,0.0032367706,-0.033996582,0.0058403015,-0.01625061,0.003967285,-0.027877808,-0.017440796,0.005355835,0.013679504,-0.014579773,0.010238647,0.035736084,0.025314331,-0.00390625,-0.028564453,-0.031799316,-0.0099105835,-0.0064086914,0.0149383545,0.016357422,0.025619507,0.043426514,-0.030685425,0.006122589,0.017364502,0.02696228,0.01966858,0.006084442,0.0045700073,-0.074645996,-0.05645752,-0.02998352,-0.04196167,0.032836914,0.021484375,-0.0021400452,0.04360962,0.010948181,-0.015403748,-0.044403076,0.03201294,-0.034423828,-0.0040740967,0.03845215,-0.032318115,-0.034820557,0.0038967133,0.0031280518,0.0020771027,0.03338623,0.018569946,0.035888672,0.07312012,0.041809082,0.00969696,0.017700195,0.004261017,0.020904541,0.0054092407,-0.016906738,-0.03866577,-0.012016296,0.028335571,-0.01725769,-0.02217102,-0.07678223,0.06317139,0.03491211,0.09112549,0.018188477,0.013160706,0.033477783,-0.020629883,0.014427185,-0.035217285,-0.027389526,-0.030761719,-0.043640137,0.029647827,-0.009902954,-0.0055007935,-0.025344849,0.03894043,-0.011512756,0.02532959,-0.02583313,0.046813965,-0.014015198,-0.017166138,0.015548706,0.012123108,0.055847168,0.070007324,-0.033996582,0.02784729,0.03062439,-0.018188477,-0.001168251,0.03451538,-0.010055542,0.0049552917,-0.058624268,-0.031066895,-0.013809204,-0.012069702,-0.04458618,0.008918762,0.0068855286,0.024841309,0.02218628,-0.0077819824,-0.009674072,-0.0077209473,-0.008995056,-0.053375244,-0.006614685,-0.04107666,0.008300781,0.04559326,-0.025894165,0.0022716522,0.008766174,-0.010147095,-0.006576538,0.009399414,0.027664185,0.0006213188,-0.04748535,0.019104004,0.0035476685,0.0021400452,0.017562866,0.03515625,0.021530151,0.034362793,0.046844482,0.013397217,-0.009262085,-0.058624268,0.025466919,-0.049621582,-0.0011816025,0.016647339,-0.026611328,-0.0006093979,-0.013084412,-0.016571045,-0.0126953125,0.016067505,-0.041259766,0.0032901764,0.021453857,-0.012329102,-0.028213501,-0.050842285,-0.01826477,-0.0014076233,0.059143066,0.022613525,0.010856628,-0.05831909,-0.0104599,0.016082764,0.00076436996,0.030166626,-0.013809204,-0.008712769,-0.023025513,-0.0368042,0.0026512146,-0.033050537,0.022781372,-0.013511658,-0.0082473755,0.023162842,0.0137786865,0.02885437,0.01209259,0.008377075,0.029785156,-0.027557373,-0.006263733,-0.011222839,0.03753662,0.010658264,-0.0024299622,-0.047943115,0.051483154,0.014022827,0.02633667,-0.042785645,-0.0025558472,-0.009361267,0.009742737,0.005077362,-0.018051147,-0.016983032,-0.0084991455,-0.051849365,-0.05532837,0.04888916,-0.017318726,0.029754639,0.024093628,0.01071167,0.032318115,-0.007457733,-0.0027999878,0.02355957,-0.019744873,-0.007446289,-0.015235901,-0.03479004,-0.024642944,-0.010482788,-0.020980835,0.025894165,-0.02166748,0.01424408,0.0063056946,-0.020431519,0.02645874,-0.002281189,0.0011138916,0.019439697,0.0031471252,0.02381897,0.03086853,0.01360321,-0.04171753,0.027557373,-0.0012273788,0.014892578,0.0014514923,0.042877197,0.0335083,-0.006504059,-0.00008815527,-0.00793457,-0.020614624,-0.020065308,0.0027179718,0.0049057007,0.01171875,-0.005329132,-0.03668213,0.009773254,0.009933472,-0.026504517,-0.01914978,0.011001587,0.009727478,-0.033325195,0.015670776,0.027999878,0.0463562,-0.022598267,-0.003370285,0.0013771057,0.017105103,0.030395508,0.022079468,-0.00035262108,0.018829346,-0.015060425,0.006137848,-0.0013999939,-0.0124435425,0.013900757,0.0012702942,0.03050232,0.022644043,0.0099105835,-0.01965332,-0.031982422,-0.00075531006,-0.010025024,-0.025909424,0.027633667,0.024307251,0.027816772,-0.024765015,0.019424438,0.01335907,-0.02558899,-0.012817383,-0.00434494,0.03982544,-0.022140503,-0.0044555664,0.015991211,0.0052948,0.036743164,-0.053100586,0.009025574,-0.0018930435,0.016525269,-0.0234375,-0.04248047,-0.04345703,-0.0026512146,0.038116455,0.009353638,0.024780273,0.0345459,0.015777588,0.0181427,0.02255249,-0.005783081,-0.011108398,-0.01007843,-0.040740967,-0.022750854,-0.021652222,-0.007633209,-0.038085938,0.015380859,-0.005466461,-0.03744507,0.00068187714,-0.008262634,-0.0050582886,-0.004020691,0.004787445,0.03881836,0.0109939575,0.018508911,-0.012481689,-0.035491943,0.009025574,0.009498596,0.014556885,-0.04928589,0.0064468384,-0.008842468,-0.011512756,0.0045433044,0.015975952,0.022872925,0.029800415,0.010536194,0.029464722,-0.055236816,0.041107178,-0.042785645,0.01737976,0.010681152,-0.034484863,-0.014221191,-0.024856567,-0.017105103,0.043914795,-0.03326416,-0.0069999695,-0.03387451,-0.031829834,-0.010017395,-0.04650879,0.0064735413,0.048309326,0.036987305,-0.024520874,0.0010728836,0.004863739,0.0026798248,-0.015029907,0.002412796,-0.011421204,0.03488159,0.0143585205,0.0047416687,-0.03378296,-0.023529053,-0.009017944,0.0023899078,-0.043640137,-0.04586792,-0.015419006,0.011405945,-0.008674622,-0.009292603,-0.021209717,-0.02859497,-0.0043411255,-0.029541016,-0.0036354065,0.007911682,0.01689148,-0.002067566,-0.035003662,0.0044136047,0.014770508,-0.012870789,0.044433594,0.0027942657,-0.007850647,-0.040893555,0.024261475,0.020050049,0.022003174,0.0010309219,-0.011489868,-0.0127334595,-0.018737793,-0.058258057,0.00027871132,-0.0045547485,-0.008491516,-0.0066375732,-0.007282257,-0.055786133,-0.00957489,-0.013038635,0.0054244995,0.029083252,0.007801056,0.011238098,-0.00057315826,0.011077881,-0.0042266846,-0.0013923645,-0.029708862,0.01852417,0.0104904175,0.004337311,0.030578613,0.047302246,-0.0021572113,-0.02822876,0.013160706,0.012786865,0.014442444,-0.023635864,0.007385254,-0.013885498,0.017059326,-0.00995636,-0.020446777,-0.043762207,0.0063285828,0.08404541,-0.00573349,-0.0065956116,-0.01687622,-0.013420105,0.020324707,0.03475952,-0.039794922,-0.0033912659,-0.033447266,0.007598877,-0.033081055,0.01586914,-0.0055770874,0.020446777,-0.015991211,-0.054870605,-0.022445679,-0.002954483,-0.010864258,-0.053466797,-0.031555176,-0.064575195,0.0071868896,-0.014167786,-0.02217102,0.002653122,0.013999939,-0.016448975,-0.07531738,-0.0019226074,0.04940796,0.0071372986,0.03152466,-0.0057640076,0.019744873,0.022079468,-0.03805542,0.004096985,0.03250122,-0.02772522,-0.019073486,-0.019805908,0.026062012,-0.015472412,-0.025131226,0.009162903,0.019546509,0.01789856,-0.014595032,0.003578186,0.0009160042,0.024765015,-0.028411865,0.01663208,-0.010620117,-0.01576233,0.032165527,-0.044006348,0.01991272,0.019699097,-0.01600647,0.0007762909,0.034454346,0.051086426,-0.035095215,-0.024307251,0.0132369995,0.010116577,0.042999268,-0.027557373,0.039642334,0.018997192,-0.02508545,0.01675415,-0.01159668,-0.026473999,-0.028930664,-0.023727417,0.017059326,-0.0096206665,0.00982666,-0.019439697,0.008041382,0.02180481,0.0093307495,0.0076828003,-0.009498596,-0.020812988,-0.01637268,0.00078582764,-0.001499176,0.00049209595,0.0016222,0.015548706,0.029724121,0.044128418,0.031402588,-0.011581421,0.011222839,0.020202637,-0.021102905,0.003648758,0.018539429,0.010124207,0.01776123,0.016952515,0.021270752,-0.04046631,-0.019012451,-0.017745972,-0.029052734,-0.004562378,-0.0049362183,-0.011878967,-0.0029087067,0.016906738,-0.003583908,-0.034332275,0.003162384,-0.021575928,-0.029129028,0.00031757355,-0.02810669,0.021377563,0.0030078888,-0.0020256042,0.0022125244,-0.00093889236,0.03717041,0.0006041527,-0.018966675,0.036895752,0.029373169,0.014480591,-0.030059814,0.0000033974648,-0.008369446,-0.011253357,-0.0003912449,-0.03149414,-0.0037059784,0.04196167,-0.016494751,0.004432678,0.01374054,0.029800415,-0.00096035004,0.0048942566,-0.0024375916,0.021820068,-0.012649536,0.037322998,-0.04647827,0.009292603,0.015838623,0.00095176697,-0.017654419,-0.00920105,-0.025939941,0.0066337585,0.0067214966,-0.006252289,0.05935669,0.009460449,0.026870728,-0.016647339,-0.029785156,0.0030555725,-0.021713257,-0.015571594,0.030685425,-0.006729126,-0.0033740997,0.0154418945,-0.024246216,0.035095215,-0.041015625,0.0029582977,-0.002275467,0.0051002502,0.0076828003,-0.021331787,-0.000936985,-0.0038261414,-0.012893677,0.014671326,-0.0033550262,0.05291748,0.011680603,0.030578613,0.049041748,0.037139893,-0.00003683567,-0.038024902,-0.023498535,0.0059661865,-0.024536133,0.027069092,-0.016326904,0.05987549,0.028930664,0.008003235,0.0284729,0.034301758,0.03515625,0.013923645,0.01058197,-0.025726318,0.011360168,0.00082302094,0.035827637,-0.005268097,0.047576904,-0.030838013,0.033447266,0.0059509277,0.015808105,-0.027954102,0.036254883,0.06549072,0.025665283,-0.014282227,0.051116943,-0.0054473877,-0.02027893,-0.008956909,-0.027023315,0.06286621,-0.00060653687,0.042633057,0.050933838,0.016357422,-0.0043525696,0.02015686,-0.03062439,-0.025558472,0.061309814,0.026733398,-0.016189575,-0.015838623,0.00027775764,0.021270752,-0.03829956,-0.02494812,0.033599854,-0.016113281,-0.0032367706,-0.010360718,-0.0065956116,-0.015655518,0.010734558,0.026992798,0.01322937,-0.013572693,0.022781372,0.030426025,0.00308609,0.028335571,-0.002325058,0.032318115,-0.020339966,-0.019882202,0.0059928894,0.019470215,-0.0032367706,-0.02142334,0.018371582,0.0056266785,0.041900635,0.040771484,-0.022247314,0.0084991455,0.025894165,0.01864624,-0.0037994385,0.053741455,0.031677246,0.017501831,0.034088135,0.025650024,0.035095215,-0.038635254,0.03366089,-0.004436493,0.0103302,-0.007980347,-0.013053894,0.0061073303,-0.02230835,0.010383606,-0.0037555695,-0.007774353,0.022613525,0.028411865,-0.0016708374,-0.0110321045,-0.017959595,0.0063705444,-0.030212402,-0.0028018951,0.011161804,-0.01574707,0.035461426,0.017837524,0.034606934,-0.022964478,0.022216797,-0.0013637543,-0.015159607,-0.0032253265,0.018325806,-0.026535034,-0.0012931824,0.003124237,0.003955841,-0.0440979,0.0135269165,0.038116455,-0.01725769,0.031921387,0.007785797,0.0017194748,-0.015106201,0.028900146,0.012245178,0.001200676,-0.00617218,-0.012252808,0.037139893,0.042114258,-0.009880066,-0.004096985,-0.032348633,-0.002626419,0.008041382,-0.0065841675,-0.00009530783,-0.0023937225,-0.013084412,-0.025650024,0.016052246,0.03781128,0.022323608,0.058532715,-0.012992859,-0.00068616867,0.00831604,0.035583496,0.0020694733,-0.0064849854,0.004142761,0.0072631836,-0.024810791,0.043945312,0.026763916,0.009521484,0.040527344,0.0040740967,-0.02267456,0.0066375732,-0.007663727,0.026367188,-0.010192871,0.009773254,-0.007457733,0.028823853,-0.015777588,-0.04547119,0.01789856,-0.012260437,-0.026062012,-0.01474762,0.015007019,0.0118255615,0.021240234,0.036590576,0.031555176,-0.026016235,0.05822754,-0.014915466,0.050689697,-0.0037555695,-0.004447937,0.0473938,0.019622803,0.038970947,0.016647339,0.024230957,-0.033325195,0.018295288,0.032287598,0.027664185,0.013717651,0.0027599335,-0.011650085,0.032165527,0.0035972595,0.03375244,-0.00969696,-0.0027694702,0.024673462,0.0008792877,-0.005279541,-0.0067863464,-0.0063552856,0.011108398,0.045135498,-0.029541016,-0.006351471,-0.016662598,-0.011665344,0.025894165,-0.018798828,0.0031547546,0.006450653,-0.01802063,0.016052246,-0.023391724,-0.031219482,0.010009766,0.022155762,-0.052856445,-0.009727478,-0.00010180473,0.0116119385,-0.020355225,0.032684326,0.02722168,0.0071754456,0.01071167,0.04071045,-0.009239197,0.024673462,-0.0054092407,0.02368164,0.034179688,-0.0011129379,-0.022491455,0.0038604736,0.00065374374,-0.01751709,0.0149002075,0.034332275,-0.011154175,0.00712204,-0.0060272217,-0.010009766,0.008010864,0.005264282,-0.012199402,0.008598328,-0.009429932,-0.01864624,-0.0030593872,0.0065307617,0.00063085556,0.0073547363,-0.005832672,-0.023605347,0.010414124,0.03173828,0.02645874,-0.028259277,-0.0029335022,0.0119018555,0.017929077,-0.025039673,-0.01939392,-0.0016384125,-0.035125732,0.0113220215,0.009407043,0.015357971,0.011489868,-0.024902344,-0.0016908646,0.037628174,0.013046265,0.013832092,-0.0019798279,-0.0071029663,0.007896423,-0.015007019,0.0007390976,-0.0047454834,-0.019485474,0.008872986,0.017745972,-0.0020446777,-0.026794434,0.024215698,-0.00020098686,0.014152527,-0.0026817322,-0.008132935,0.02281189,-0.010192871,0.0077400208,-0.0041999817,0.015716553,-0.0072898865,-0.014282227,-0.012069702,0.04257202,0.060333252,-0.011314392,-0.00674057,0.028045654,0.01411438,0.012527466,0.03793335,-0.003929138,0.04876709,0.025115967,-0.030471802,-0.02545166,0.037017822,-0.011779785,-0.029312134,0.020721436,-0.026733398,-0.019134521,0.013435364,0.0076446533,0.0021476746,-0.0390625,-0.007385254,-0.011154175,-0.008293152,0.019744873,-0.014144897,0.0068855286,-0.027923584,-0.017486572,0.00050497055,-0.025756836,-0.04562378,-0.0262146,-0.009635925,-0.0077819824,-0.055999756,0.0073242188,-0.03186035,0.012382507,-0.032836914,-0.0031223297,-0.01209259,0.017410278,-0.018676758,-0.005367279,0.0043907166,0.019348145,0.024154663,0.00097322464,0.022598267,-0.021759033,-0.030136108,-0.025390625,0.009407043,-0.004512787,0.021652222,0.009498596,0.03704834,0.032409668,-0.012161255,-0.0078125,-0.010375977,-0.009918213,-0.010284424,-0.020523071,-0.02519226,0.025466919,0.005065918,-0.017303467,-0.016677856,0.045440674,-0.026992798,-0.016433716,0.03274536,0.042877197,0.013664246,0.024765015,-0.0124435425,-0.0052452087,-0.011764526,0.0077667236,-0.01335907,0.0016775131,0.006023407,0.004852295,-0.0082092285,0.015640259,0.021774292,-0.0060691833,0.0035419464,0.025970459,0.011894226,-0.004436493,0.0317688,0.007785797,0.010620117,-0.015419006,-0.0043182373,0.022094727,0.056732178,0.017623901,0.016967773,0.0006814003,0.0034103394,-0.018508911,0.008575439,0.013000488,-0.023208618,-0.04257202,-0.015357971,-0.027740479,0.020629883,0.003358841,-0.00068950653,-0.008308411,0.021011353,-0.016799927,-0.02784729,-0.017089844,0.024505615,0.018066406,-0.012130737,-0.002910614,0.01423645,0.009262085,-0.04046631,-0.004940033,-0.037902832,-0.029006958,0.0037975311,-0.025222778,0.031829834,0.016311646,-0.010406494,-0.0036640167,-0.003370285,-0.003211975,-0.0014514923,0.028305054,-0.016174316,0.00016319752,0.036712646,0.02204895,-0.01687622,0.031173706,-0.01927185,0.0069351196,0.020843506,-0.018722534,0.013496399,-0.022247314,0.020324707,-0.014839172,-0.00541687,0.03286743,-0.0103302,0.010917664,-0.037506104,0.0087890625,0.0011167526,-0.01210022,0.023101807,-0.027023315,-0.029541016,0.0020370483,-0.018966675,-0.025314331,0.0000436306,0.017868042,0.03616333,-0.0018482208,0.047790527,-0.017456055,-0.008041382,0.013641357,0.015274048,-0.00749588,0.005882263,0.027801514,0.00089502335,0.007827759,-0.0018100739,-0.019882202,-0.031799316,-0.0061912537,0.01828003,-0.006526947,0.0019435883,0.04296875,0.0107040405,0.047668457,-0.0031929016,0.016906738,0.0034332275,0.0039100647,0.019042969,0.010246277,0.055114746,-0.00187397,-0.029647827,0.008895874,0.008552551,-0.02784729,0.0025558472,-0.010467529,-0.0029067993,-0.033843994,0.013305664,-0.0063209534,0.019210815,-0.03289795,0.021133423,-0.02003479,-0.0013017654,-0.037261963,-0.0079574585,-0.026046753,0.000975132,0.028701782,0.004852295,0.01525116,0.012840271,-0.021728516,0.016433716,0.041137695,-0.008125305,-0.024993896,-0.013572693,0.010116577,-0.0047073364,0.010749817,0.005241394,-0.020095825,-0.010231018,0.008575439,-0.019882202,0.010292053,-0.002861023,0.021759033,0.003835678,-0.011871338,-0.017684937,0.030548096,-0.009155273,-0.0077285767,0.013198853,0.0146484375,0.039245605,0.03945923,-0.00843811,0.020004272,0.011802673,-0.04876709,0.06109619,0.009918213,0.024520874,-0.022384644,0.0068473816,-0.043884277,-0.01878357,-0.019058228,0.011352539],"createdAt":"2026-04-18T18:45:45.873Z","updatedAt":"2026-04-22T07:00:55.973Z","lastSeenAt":"2026-04-22T07:00:55.973Z","tsv":"'/api/v1/claims/45':56,155 '/request':13,28 '0.02':12,27,78,149 '000':72 '20':71 '402':66 '402 payment protocol' 'Base network API' 'USDC micropayment API' 'accept':46 'access':62,92,179 'across':108 'actual':169 'addit':199 'advertis':83 'ai':118 'analysi':122 'analyt':112 'api':5,20,38,61,85,165,178,188 'appear':159 'attach':95 'avail':213 'base':8,23,51,73 'broader':104 'call':4,19,80 'catalog':166 'categori':110 'challeng':67 'classif':125 'connect':194 'content':200 'convers':142 'data':111,115 'descript':174 'detail':211 'doc':185 'document':183,212 'embed':126 'endpoint':55,107,145,156,216 'estim':136 'exampl':208 'exchang':131 'export':116 'feed':130 'financ':127 'four':109 'function':170 'gas':135 'generat':143 'geocod':140 'header':99 'howev':152 'i.e':77 'infrastructur':138 'insight':117 'instant':91 'json-response' 'key':86 'learn':120 'limit':89 'list':58,164 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':31 'machin':119 'metric':113 'network':9,24,52 'no-api-key' 'offer':106 'openapi':204 'page':189 'pay':2,17,35 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request':34 'payment':48,98 'per':3,18,36,79,150 'platform':6,21,39,82,105 'premium':60,177 'price':129,147,186 'prompt':196 'protocol':44 'quot':134 'rate':88,132 'render':191 'report':114 'request':37,68,102,151 'request/response':207 'return':64 'schema':205 'sentiment':121 'simpli':94,176 'site':162 'specif':54,154 'summar':124 'text':123 'token':133 'unclear':172 'unit':74 'usdc':15,30,47,76 'usdc-base-network' 'use':41 'util':139 'valid':141 'via':10,25 'wallet':195 'web3':128 'x402':11,26,43,97 'x402 API' 'x402-payment'","prices":[{"id":"3d445b12-7ed8-408f-9438-5c360c77f44b","listingId":"e2d23dba-4dea-4bdf-9fd0-783081d73ee0","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/claims/45","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:45:45.873Z"}],"sources":[{"listingId":"e2d23dba-4dea-4bdf-9fd0-783081d73ee0","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/claims/45","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:45:45.873Z","lastSeenAt":"2026-04-22T07:00:55.973Z"}],"details":{"listingId":"e2d23dba-4dea-4bdf-9fd0-783081d73ee0","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/claims/45 \\\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 x402 challenge requests maxAmountRequired of 20000 base units of USDC (asset 0x8335…) on Base, equaling $0.02.","source_url":"https://lowpaymentfee.com/api/v1/claims/45"},{"claim":"The platform lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories, all priced at $0.02/request.","source_url":"https://lowpaymentfee.com"},{"claim":"The site advertises no API keys, no rate limits, instant access, and Base network settlement.","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages render only a 'Connect wallet' prompt with no further content.","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Accessing premium API data with per-request USDC micropayments","Agent-driven API consumption without pre-registration or API keys","Programmatic pay-as-you-go access to various utility and data endpoints"],"bestFor":["Developers wanting zero-signup, pay-per-call API access","AI agents that can settle x402 payments on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","High-volume consumers who need bulk pricing or rate guarantees","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:20.632Z"},"updatedAt":"2026-04-22T07:00:55.973Z"}}