{"id":"1ceb23c4-4ac5-400d-88fa-08a041cf78fc","shortId":"dNUNJ6","kind":"x402","title":"Pay-per-request API suite on Base via x402 — data, AI, finance, and utility endpoints at $0.02/call.","tagline":"Pay-per-request API suite on Base via x402 — data, AI, finance, and utility endpoints at $0.02/call.","description":"lowpaymentfee.com offers a collection of pay-per-request API endpoints accessible via the x402 payment protocol on the Base network. The specific endpoint at `/api/v1/orders/32` is labeled \"Premium API Access\" and accepts POST requests, settling payments in USDC (contract 0x8335…2913 on Base). The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request.\n\nThe broader platform advertises four categories of APIs: 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 listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments required.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no detailed documentation available from the crawl. The exact functionality behind the `/api/v1/orders/32` endpoint is unclear beyond its \"Premium API Access\" label.","tags":[],"capabilities":["x402-payment","pay-per-request","usdc-settlement","base-network","data-analytics","ai-inference","sentiment-analysis","text-summarization","embeddings","finance-data","geocoding","no-api-key"],"categories":["api-marketplace","llm","finance","geo"],"synonyms":["low payment fee","x402 api","pay per call api","micropayment api","base usdc api","402 payment api","lowpaymentfee"],"warnings":["Documentation pages (docs, API, pricing, README) all render only 'Connect wallet' with no usable content","No OpenAPI or schema available for any endpoint","The specific purpose and expected input/output of /api/v1/orders/32 ('Premium API Access') is undocumented","The platform lists many endpoint categories but none have verifiable documentation or examples"],"endpointUrl":"https://lowpaymentfee.com/api/v1/orders/32","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/orders/32","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, documentation is essentially nonexistent — all doc/pricing/API pages show only 'Connect wallet'. There is no OpenAPI schema, no request/response examples, and the purpose of the specific /api/v1/orders/32 endpoint is unclear beyond its generic label. The broader platform lists many endpoints but provides no detail on any of them.","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":"2026-04-18T22:51:52.675Z","embedding":[-0.03137207,-0.02923584,0.026687622,-0.001707077,0.016830444,-0.042510986,-0.04296875,0.03161621,0.061187744,-0.072021484,0.023864746,-0.06378174,-0.027816772,-0.039794922,-0.013465881,0.006603241,0.009536743,0.005569458,-0.05355835,0.046813965,0.023025513,-0.012237549,-0.03149414,0.01436615,-0.00957489,-0.017868042,-0.0014762878,-0.0077438354,-0.016448975,-0.041137695,0.04034424,-0.027801514,0.0048675537,0.015655518,-0.011131287,-0.018157959,-0.0096588135,0.050567627,0.031463623,-0.0017719269,-0.009628296,-0.04220581,0.0072746277,-0.013473511,-0.05621338,0.0049972534,0.011680603,-0.028457642,-0.013801575,0.006832123,-0.04827881,0.007396698,-0.015365601,0.00881958,0.019470215,0.025741577,-0.011878967,-0.0027580261,0.008354187,0.011428833,0.0012674332,-0.060424805,-0.019332886,0.0022239685,-0.007926941,0.06713867,-0.01398468,0.04751587,0.015625,0.053588867,0.030426025,0.042663574,0.04083252,0.0035209656,0.017959595,-0.0061187744,-0.001964569,0.08166504,-0.01071167,-0.021911621,-0.029937744,-0.018432617,-0.04156494,-0.0073013306,-0.0079422,-0.061798096,-0.022842407,0.018508911,-0.040405273,0.02168274,-0.066223145,0.00029587746,-0.01939392,0.008872986,0.01360321,-0.0048446655,-0.0058288574,0.030044556,-0.020645142,0.028167725,0.003768921,-0.047821045,-0.0034484863,0.014915466,0.032806396,0.053253174,0.011451721,0.019073486,0.006401062,-0.0070762634,-0.04031372,0.0017843246,-0.022994995,-0.019882202,0.008842468,0.0127334595,-0.030807495,0.009857178,-0.033050537,0.009864807,-0.042053223,0.035095215,0.02357483,-0.0040664673,0.0033035278,-0.046173096,-0.036834717,0.0041542053,-0.018356323,-0.013938904,0.030899048,0.015213013,0.03479004,-0.025375366,-0.027633667,-0.007095337,-0.0014543533,-0.0098724365,-0.035186768,-0.038208008,0.04449463,-0.03555298,0.022766113,0.016326904,-0.10449219,-0.0042266846,-0.060760498,-0.010620117,-0.026306152,-0.010627747,-0.015213013,0.013290405,-0.03277588,-0.022918701,-0.018096924,-0.023895264,-0.00042581558,0.021362305,-0.021102905,0.04699707,-0.022125244,0.020111084,0.017837524,-0.0012130737,0.021774292,0.024398804,-0.0066947937,-0.0826416,-0.08483887,-0.02897644,-0.00699234,-0.016220093,-0.02532959,-0.0107421875,0.006706238,-0.068481445,-0.020568848,-0.010940552,-0.0077705383,-0.037322998,-0.009147644,-0.020767212,0.0007829666,-0.014533997,-0.042907715,-0.012924194,-0.036834717,0.070251465,0.0020809174,0.027023315,0.033721924,-0.0004284382,0.05102539,0.03475952,0.0075035095,-0.022323608,-0.00030708313,-0.016113281,0.023269653,0.0015859604,0.014572144,-0.026367188,0.04928589,0.062438965,0.004142761,-0.023529053,0.0024795532,-0.053863525,-0.03845215,-0.03314209,0.01902771,0.015007019,-0.010734558,0.0368042,-0.035247803,-0.048187256,-0.018295288,0.007068634,0.0056152344,0.06970215,0.014038086,-0.008201599,0.013214111,0.014480591,-0.043182373,0.040496826,0.042999268,-0.0014848709,-0.03277588,-0.022628784,0.03277588,0.049224854,-0.025375366,0.024032593,-0.023040771,0.025604248,-0.018997192,0.008216858,0.021713257,-0.015541077,-0.012077332,-0.025680542,-0.01890564,0.030975342,0.010795593,-0.030654907,-0.032714844,-0.0670166,0.04675293,0.028182983,0.04498291,-0.010810852,0.0015420914,-0.033477783,-0.0062408447,-0.07751465,0.042785645,0.07891846,-0.0043525696,-0.002571106,0.01474762,0.019729614,-0.015838623,0.0093688965,0.0069351196,-0.02243042,-0.013290405,0.0048828125,-0.05014038,0.009315491,0.011352539,0.030593872,0.058013916,-0.012641907,-0.046875,-0.012542725,-0.009117126,-0.01802063,-0.015365601,0.009407043,-0.0074501038,-0.01159668,0.042053223,0.0026779175,0.031173706,-0.0063552856,0.014549255,-0.0020942688,-0.010124207,-0.010604858,-0.024154663,0.014450073,-0.0018663406,-0.07672119,0.009468079,-0.011199951,0.0769043,-0.045440674,0.032989502,-0.0051002502,0.023635864,0.0262146,-0.005504608,-0.026687622,0.013328552,0.02279663,0.0049972534,0.03845215,0.0038719177,-0.02810669,-0.0031166077,0.08355713,-0.012466431,-0.010757446,-0.006580353,0.02130127,0.033477783,-0.007335663,-0.041290283,-0.03817749,-0.0075263977,-0.043304443,0.025863647,-0.009986877,0.015686035,-0.011299133,0.00920105,-0.024139404,-0.0058670044,-0.028274536,0.017059326,-0.00969696,-0.0024986267,-0.0009870529,-0.030899048,0.006591797,0.02796936,-0.00027823448,0.013916016,0.03475952,0.031188965,-0.018005371,-0.037109375,-0.028900146,-0.007423401,0.009010315,0.013031006,0.019012451,0.015205383,0.050231934,-0.039978027,0.0096206665,0.022125244,0.012184143,0.038391113,-0.0077934265,0.014968872,-0.07244873,-0.044952393,-0.03100586,-0.043792725,0.02709961,0.03338623,-0.00806427,0.04812622,0.0015554428,-0.020629883,-0.032043457,-0.0019817352,-0.043395996,0.02003479,0.050720215,-0.017700195,-0.030136108,-0.021026611,-0.015686035,0.003271103,0.046905518,0.012336731,0.018981934,0.06304932,0.030181885,0.0016918182,0.03555298,0.013710022,0.033416748,0.008354187,-0.010925293,-0.032226562,0.0006980896,0.017715454,-0.034729004,-0.015419006,-0.04562378,0.064208984,0.04360962,0.078430176,0.0021247864,0.000024497509,0.047210693,-0.009124756,0.0062675476,-0.011665344,-0.015312195,-0.03692627,-0.031036377,0.027954102,-0.013580322,0.006046295,-0.017028809,0.042877197,-0.0061035156,0.016448975,-0.020248413,0.045043945,-0.0140686035,0.0051651,0.013702393,-0.0008878708,0.047546387,0.04269409,-0.041992188,0.016113281,0.016159058,-0.043670654,0.005302429,0.043060303,-0.03164673,-0.02923584,-0.050628662,-0.03555298,-0.010124207,-0.00029850006,-0.052642822,-0.0029258728,0.0043144226,0.02015686,0.026641846,-0.005065918,-0.014190674,0.008758545,-0.021957397,-0.070251465,0.006336212,-0.038330078,-0.0041160583,0.0435791,-0.016647339,0.00009536743,0.0019989014,-0.01473999,-0.0020751953,0.0051879883,0.03488159,-0.005970001,-0.035858154,0.027954102,0.00020289421,0.016296387,0.037902832,0.031036377,0.047027588,0.01612854,0.044281006,0.0020503998,-0.021102905,-0.05795288,0.009262085,-0.05014038,0.007904053,0.000052809715,-0.028167725,-0.0084991455,-0.01600647,-0.030532837,-0.018829346,0.011489868,-0.029144287,0.0014438629,0.024154663,-0.039001465,-0.026107788,-0.05065918,-0.013702393,-0.0015287399,0.072753906,0.02748108,-0.014228821,-0.056488037,-0.0064697266,0.018585205,0.0113220215,0.021270752,-0.015960693,-0.010231018,-0.018692017,-0.044158936,-0.011299133,-0.023742676,0.026885986,0.004016876,-0.015472412,0.021606445,0.0016946793,0.019622803,-0.0024108887,0.00617218,0.02029419,-0.019729614,0.0019292831,-0.017059326,0.03137207,0.00084733963,-0.00065279007,-0.035125732,0.05960083,0.0059394836,0.04360962,-0.030731201,-0.021896362,-0.018341064,0.0236969,0.02645874,-0.022598267,-0.0029392242,-0.008407593,-0.040527344,-0.040924072,0.03302002,-0.027572632,0.024276733,0.005958557,0.0055770874,0.022949219,-0.014289856,0.023010254,0.024368286,-0.02961731,-0.010383606,-0.020507812,-0.043792725,-0.013572693,-0.00054597855,-0.018432617,0.029800415,-0.025466919,0.0143966675,0.002368927,-0.02293396,0.042999268,0.012069702,0.012741089,0.024169922,0.008285522,0.017105103,0.055145264,0.015823364,-0.045318604,0.02935791,0.002067566,0.022979736,-0.0058670044,0.037963867,0.035217285,-0.020233154,0.0036640167,-0.0024967194,-0.019119263,-0.02067566,-0.0055160522,-0.002313614,0.008674622,-0.009361267,-0.044647217,0.011116028,0.01574707,-0.011192322,-0.03744507,0.010940552,-0.0010824203,-0.044006348,0.019821167,0.031433105,0.062683105,-0.021850586,0.019561768,0.011688232,0.046813965,0.030532837,0.016998291,-0.01927185,0.024642944,-0.004322052,0.0058135986,-0.004459381,-0.0025234222,0.017349243,0.0032424927,0.023498535,0.026412964,0.01234436,-0.027130127,-0.032989502,0.01171875,-0.010559082,-0.018493652,0.031219482,0.030380249,0.02279663,-0.019546509,0.025436401,0.0072250366,-0.018127441,-0.027526855,-0.011062622,0.03842163,-0.019256592,-0.022201538,0.017623901,0.009346008,0.028442383,-0.05014038,-0.009864807,0.02116394,0.018585205,-0.019378662,-0.025299072,-0.042175293,-0.0015802383,0.034484863,0.014297485,0.023620605,0.030151367,0.0078125,0.005558014,0.018554688,0.011924744,-0.010025024,-0.012374878,-0.05126953,-0.019134521,0.0064353943,0.0063972473,-0.03845215,0.021026611,-0.008407593,-0.024719238,0.0034217834,-0.028167725,-0.013397217,-0.017593384,0.0042381287,0.032684326,-0.0024318695,0.023010254,-0.013687134,-0.03213501,-0.008369446,0.0072402954,0.015403748,-0.056488037,0.01737976,-0.005256653,-0.003112793,0.000012934208,0.020690918,0.01676941,0.025375366,0.016662598,0.051849365,-0.040924072,0.040222168,-0.032989502,0.03253174,-0.0042495728,-0.044311523,-0.010223389,-0.031341553,-0.009269714,0.040649414,-0.027282715,-0.016098022,-0.021087646,-0.023269653,-0.011955261,-0.053619385,0.009681702,0.034454346,0.04486084,-0.015823364,0.004711151,0.010131836,0.014091492,-0.028244019,0.0030517578,-0.0024471283,0.008049011,0.027938843,-0.0073623657,-0.023605347,-0.03387451,-0.009208679,-0.0034694672,-0.047302246,-0.055603027,-0.009399414,-0.003604889,0.0014715195,-0.007820129,-0.028320312,-0.039245605,0.0062675476,-0.03753662,0.027023315,-0.0010194778,0.011520386,0.011100769,-0.019439697,0.0017690659,0.013839722,-0.020141602,0.03024292,0.0048332214,-0.019882202,-0.03302002,0.012649536,0.024856567,0.022521973,-0.005531311,-0.01361084,-0.008430481,-0.014289856,-0.038391113,-0.010414124,-0.004753113,-0.0143966675,-0.0064086914,0.0038452148,-0.048614502,-0.006904602,-0.036071777,-0.00548172,0.034454346,0.017715454,0.0040245056,-0.01864624,-0.0018920898,0.0058937073,-0.0021953583,-0.03970337,0.010414124,0.012039185,0.0017147064,0.02017212,0.04626465,-0.007972717,-0.00970459,-0.011741638,0.012557983,0.026107788,-0.021591187,0.008407593,-0.03250122,0.01638794,-0.0039749146,-0.014038086,-0.043518066,-0.0047187805,0.06903076,-0.0059509277,0.00630188,0.000518322,-0.0062446594,0.018539429,0.031707764,-0.035217285,-0.00699234,-0.011642456,0.015144348,-0.022140503,0.0181427,-0.0024490356,0.02217102,-0.020629883,-0.055999756,-0.012359619,0.0027866364,-0.022384644,-0.06390381,-0.020217896,-0.07525635,-0.00806427,-0.004196167,-0.03164673,-0.000024199486,0.0158844,-0.015945435,-0.07141113,0.009925842,0.050689697,0.0044517517,0.030975342,-0.012130737,0.017623901,0.036132812,-0.031188965,-0.010757446,0.030181885,-0.028167725,-0.028060913,-0.015853882,0.022354126,-0.012008667,-0.0073013306,0.014694214,0.013923645,0.022781372,-0.0031929016,0.015159607,-0.01210022,0.02444458,-0.022781372,0.025772095,-0.005897522,-0.015136719,0.052703857,-0.056427002,0.021240234,0.0063323975,-0.007381439,0.011749268,0.025741577,0.041992188,-0.045837402,-0.012702942,0.033477783,0.024124146,0.030456543,-0.021530151,0.048614502,0.019729614,-0.020065308,0.011962891,0.0059394836,-0.024627686,-0.047180176,-0.03878784,0.034332275,-0.010879517,0.007156372,-0.016220093,-0.00024724007,0.009475708,-0.008430481,0.0090789795,-0.020263672,-0.032928467,-0.028320312,-0.001461029,-0.0015439987,-0.0016117096,-0.0016336441,0.02796936,0.023239136,0.03604126,0.0028533936,0.00116539,0.029067993,0.03164673,-0.019821167,-0.0028743744,0.018005371,-0.0035991669,0.014762878,0.023376465,0.013435364,-0.05508423,-0.006828308,-0.042999268,-0.0031318665,-0.0068855286,-0.0143585205,-0.015625,-0.018432617,-0.0062828064,-0.003129959,-0.036071777,0.013496399,-0.02355957,-0.022354126,-0.018600464,-0.006832123,0.02355957,0.015975952,0.004131317,0.020492554,0.0041236877,0.062805176,0.011734009,-0.006175995,0.02532959,0.04397583,0.019638062,-0.027252197,-0.01600647,-0.0024795532,0.00038337708,0.001241684,-0.030014038,0.012283325,0.032806396,-0.010726929,-0.003353119,-0.0029087067,0.021987915,-0.010055542,0.005947113,-0.014419556,0.01550293,-0.013145447,0.039733887,-0.04623413,0.001748085,0.012573242,0.008506775,-0.0030460358,-0.015899658,-0.02696228,0.015266418,-0.0066566467,-0.002986908,0.05709839,-0.009857178,0.025131226,-0.03189087,-0.023376465,0.0035133362,-0.01876831,-0.013038635,0.019714355,-0.0016393661,0.0026226044,0.007080078,-0.017837524,0.027816772,-0.02130127,0.00806427,0.0052833557,0.00907135,-0.017303467,-0.0035266876,-0.029556274,-0.0011835098,-0.0131073,-0.012428284,-0.012207031,0.04272461,0.013374329,0.03552246,0.047454834,0.011405945,0.018585205,-0.03555298,-0.022476196,-0.0052833557,-0.011550903,0.013717651,-0.019348145,0.031677246,0.040924072,0.018310547,0.030517578,0.025772095,0.03378296,-0.00592041,0.009864807,-0.020599365,0.016464233,-0.024490356,0.021438599,0.01096344,0.036834717,-0.025131226,0.013595581,0.015525818,0.02810669,-0.029281616,0.03869629,0.0637207,0.012374878,0.003440857,0.032196045,0.00680542,-0.010948181,-0.006549835,-0.018295288,0.06317139,0.030700684,0.05053711,0.042144775,-0.0032749176,-0.0064964294,0.024139404,-0.04815674,-0.018234253,0.05718994,0.023361206,-0.03201294,-0.001159668,-0.011833191,0.0029010773,-0.0385437,-0.02722168,0.006099701,0.014289856,-0.0012712479,-0.004798889,-0.012268066,-0.013870239,0.014297485,0.013771057,0.008079529,-0.011688232,0.013153076,0.02279663,0.0008158684,0.022598267,-0.0048980713,0.03253174,-0.032714844,-0.018814087,0.015571594,0.0012807846,-0.00969696,-0.008369446,0.023971558,-0.0020656586,0.035064697,0.03579712,-0.011169434,0.0025310516,0.021942139,0.01374054,-0.0060043335,0.060913086,0.037506104,0.018722534,0.04144287,0.046966553,0.030410767,-0.030929565,0.0062065125,-0.015281677,-0.00039958954,-0.014762878,-0.019561768,0.0004892349,-0.01914978,0.022903442,0.007232666,-0.010017395,0.019851685,0.03668213,0.012954712,-0.009208679,-0.01939392,0.0021476746,-0.017074585,-0.009391785,0.012817383,0.0024433136,0.027008057,0.016143799,0.031982422,-0.026321411,0.02746582,-0.01725769,-0.017608643,-0.0029640198,0.021347046,-0.03314209,0.011688232,-0.012008667,-0.0020122528,-0.041534424,0.013114929,0.03250122,-0.011329651,0.018051147,0.019088745,-0.0042152405,-0.014831543,0.0137786865,0.014930725,-0.019073486,-0.018554688,-0.016586304,0.026473999,0.042236328,0.0067596436,0.019546509,-0.011253357,0.0012149811,-0.0055999756,-0.0064926147,-0.000011920929,-0.00085544586,-0.011878967,-0.0022773743,0.022720337,0.022064209,0.014083862,0.037994385,-0.008148193,-0.019882202,0.008682251,0.033294678,0.014862061,0.013450623,-0.0005350113,0.020996094,-0.018371582,0.031280518,0.038085938,0.007293701,0.017562866,-0.008956909,0.0045394897,0.012901306,-0.016082764,0.014953613,-0.018600464,0.010643005,-0.012435913,0.025009155,-0.016815186,-0.051727295,0.011703491,-0.012825012,-0.022460938,-0.026367188,0.0131073,-0.0058135986,0.020904541,0.04425049,0.013702393,-0.038116455,0.06585693,-0.029037476,0.052581787,-0.0057640076,-0.0029773712,0.051574707,0.028625488,0.029174805,0.016220093,0.013175964,-0.027191162,0.022399902,0.047454834,0.028762817,0.009651184,-0.001493454,-0.01259613,0.03765869,0.0016822815,0.03253174,-0.0029010773,0.0069503784,0.016464233,0.00034999847,-0.007858276,-0.0035858154,-0.010688782,0.0005764961,0.043823242,-0.018554688,-0.009735107,-0.025283813,-0.020507812,0.027572632,-0.0085372925,0.0059547424,-0.00008189678,-0.033569336,0.009864807,-0.04171753,-0.018661499,0.013557434,0.02128601,-0.048309326,-0.022613525,0.007080078,0.017456055,-0.02130127,0.02154541,0.016036987,-0.010749817,0.020843506,0.040893555,-0.006504059,0.032806396,-0.014862061,0.021514893,0.034729004,0.004447937,-0.015464783,-0.00036382675,0.013923645,-0.005771637,0.011917114,0.03265381,-0.012458801,-0.0044822693,0.0011749268,-0.004146576,-0.0066452026,0.0027427673,0.00004339218,0.010971069,-0.0014686584,-0.00034070015,0.015930176,0.0006837845,-0.004432678,0.010528564,-0.013572693,-0.010536194,0.01802063,0.0357666,0.034240723,-0.031402588,0.00459671,0.015090942,0.00086402893,-0.010444641,-0.021270752,-0.012512207,-0.024230957,0.015731812,0.0032215118,0.022109985,0.01763916,-0.02444458,0.016830444,0.029586792,0.02142334,0.007980347,-0.003156662,-0.018417358,0.01272583,-0.0138549805,-0.012466431,-0.007095337,-0.015281677,-0.0013008118,0.018508911,-0.0049476624,-0.029586792,0.023376465,-0.013786316,0.009307861,-0.00080919266,-0.011917114,0.0017776489,-0.011306763,-0.015396118,0.0042533875,0.012077332,-0.0055770874,-0.015007019,-0.016159058,0.038085938,0.05847168,-0.016143799,-0.01550293,0.018203735,0.008224487,0.022216797,0.044403076,0.015655518,0.043121338,0.01789856,-0.01663208,-0.0129776,0.014678955,-0.017929077,-0.01777649,0.011390686,-0.0037899017,-0.013183594,0.010955811,0.0036697388,-0.0071792603,-0.0141067505,-0.016342163,-0.012275696,-0.02507019,0.024017334,-0.0012254715,0.022842407,-0.015914917,-0.01386261,0.01171875,-0.037506104,-0.048797607,-0.021484375,0.0041122437,-0.011657715,-0.05731201,0.005004883,-0.027740479,0.012931824,-0.018005371,-0.0018863678,-0.0027675629,0.02758789,-0.019500732,0.003955841,-0.005870819,0.023025513,0.010002136,0.010902405,0.017425537,-0.014984131,-0.02456665,-0.03665161,0.0073623657,-0.0051193237,0.016189575,0.0067863464,0.038879395,0.02810669,-0.0055160522,0.0029449463,-0.019424438,0.0010824203,-0.0077438354,-0.030014038,-0.01927185,0.0076828003,0.01751709,0.002286911,0.000019192696,0.037628174,-0.015258789,-0.008666992,0.021652222,0.042785645,0.0028038025,0.02633667,-0.014556885,-0.009483337,-0.010551453,-0.002626419,-0.0038452148,0.014572144,0.005344391,-0.007019043,0.0021896362,-0.0021953583,0.03555298,-0.024856567,-0.009674072,0.02999878,0.013961792,-0.0057640076,0.052459717,0.025970459,0.008880615,-0.019683838,-0.011428833,0.021560669,0.056884766,0.020187378,0.019515991,0.0068206787,0.0028324127,-0.01927185,0.01663208,0.00459671,-0.015823364,-0.04949951,-0.009346008,-0.037139893,0.02696228,-0.00003552437,0.020706177,-0.00667572,0.0124053955,-0.011161804,-0.041229248,-0.02229309,0.026397705,0.016204834,-0.019226074,-0.016433716,0.009254456,0.016998291,-0.024780273,-0.006652832,-0.03765869,-0.022964478,-0.020599365,-0.007534027,0.024337769,0.012641907,-0.0011329651,-0.0009889603,-0.0030288696,-0.0031166077,-0.007965088,0.01763916,-0.014343262,0.0040740967,0.022384644,0.006801605,-0.034210205,0.024124146,0.0039405823,-0.001414299,0.006801605,-0.022537231,0.020614624,-0.00957489,0.034210205,-0.0007247925,-0.009101868,0.034179688,0.009262085,0.0158844,-0.035247803,0.0066566467,0.0000073313713,0.006336212,0.04144287,-0.018600464,-0.0140686035,0.02041626,-0.020187378,-0.014465332,0.0001424551,0.020446777,0.018859863,-0.023117065,0.041412354,-0.0026569366,0.004512787,0.010520935,0.022705078,-0.01361084,0.00092983246,0.038269043,0.0006313324,0.011512756,0.0051727295,-0.006187439,-0.0345459,-0.01927185,0.013244629,-0.0033130646,-0.020645142,0.024734497,0.009300232,0.053009033,-0.012489319,0.014152527,0.027877808,-0.0066566467,0.03768921,0.0055389404,0.040100098,0.010757446,-0.034851074,0.0012102127,-0.013435364,-0.030899048,-0.004184723,0.007205963,0.015472412,-0.020767212,0.0074768066,-0.014533997,0.022064209,-0.021011353,0.016143799,-0.025146484,-0.016494751,-0.030410767,-0.008308411,-0.029067993,0.014015198,0.043762207,0.0030384064,0.018630981,0.0040245056,-0.022201538,0.02835083,0.054901123,0.0087890625,-0.028060913,-0.027862549,0.01272583,-0.0059127808,0.0075035095,0.014328003,-0.010368347,-0.020889282,0.01247406,-0.006614685,0.0052948,-0.0058937073,0.011169434,-0.0034999847,0.0071144104,-0.00217247,0.0206604,-0.0010194778,-0.0024585724,0.00089645386,0.00077962875,0.036193848,0.026062012,-0.008216858,0.013442993,0.015007019,-0.0317688,0.060821533,-0.012756348,0.030212402,-0.013999939,0.015419006,-0.031143188,-0.02758789,-0.0005555153,0.0025806427],"createdAt":"2026-04-18T18:36:50.465Z","updatedAt":"2026-04-23T15:00:46.076Z","lastSeenAt":"2026-04-23T15:00:46.076Z","tsv":"'/api/v1/orders/32':64,205 '/call':19,38 '0.02':18,37,98,147 '000':89 '0x8335':79 '20':88 '2913':80 '402 payment api' '6':94 'accept':71 'access':50,69,213 'advertis':104 'ai':12,31,116 'ai-inference' 'amount':85 'analysi':120 'analyt':110 'api':5,24,48,68,108,152,168,212 'avail':196 'base':8,27,58,82,90 'base usdc api' 'base-network' 'behind':203 'beyond':209 'broader':102 'categori':106 'classif':123 'collect':42 'commit':160 'connect':177 'content':183 'contract':78 'convers':140 'crawl':199 'data':11,30,109,113 'data-analytics' 'decim':95 'detail':194 'doc':167 'document':162,195 'embed':124 'embeddings' 'endpoint':16,35,49,62,143,206 'equal':97 'estim':134 'exact':201 'exampl':191 'exchang':129 'export':114 'extrem':164 'feed':128 'financ':13,32,125 'finance-data' 'four':105 'function':202 'gas':133 'generat':141 'geocod':138 'geocoding' 'infrastructur':136 'insight':115 'key':153 'label':66,214 'learn':118 'limit':156 'list':145 'low payment fee' 'lowpaymentfee' 'lowpaymentfee.com':39 'machin':117 'maximum':84 'metric':111 'micropayment api' 'minimum':159 'network':59 'no-api-key' 'offer':40 'openapi':187 'page':172 'pay':2,21,45 'pay per call api' 'pay-per-request':1,20,44 'payment':54,75 'per':3,22,46,99,148 'platform':103 'post':72 'premium':67,211 'price':127,169 'prompt':179 'protocol':55 'quot':132 'rate':130,155 'readm':171 'render':174 'report':112 'request':4,23,47,73,100,149 'request/response':190 'requir':86,161 'schema':188 'sentiment':119 'sentiment-analysis' 'settl':74 'spars':165 'specif':61 'suit':6,25 'summar':122 'text':121 'text-summarization' 'token':131 'unclear':208 'unit':91 'usdc':77,93 'usdc-settlement' 'util':15,34,137 'valid':139 'via':9,28,51 'wallet':178 'web3':126 'x402':10,29,53 'x402 api' 'x402-payment'","prices":[{"id":"a3eb6e00-f482-45b9-a79d-cbff9d32f2ae","listingId":"1ceb23c4-4ac5-400d-88fa-08a041cf78fc","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/orders/32","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:36:50.465Z"}],"sources":[{"listingId":"1ceb23c4-4ac5-400d-88fa-08a041cf78fc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/orders/32","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:50.465Z","lastSeenAt":"2026-04-23T15:00:46.076Z"}],"details":{"listingId":"1ceb23c4-4ac5-400d-88fa-08a041cf78fc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/orders/32 \\\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 with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/orders/32"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/orders/32"},{"claim":"All endpoints are listed at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers Data & Analytics, AI & ML, Finance & Web3, and Infrastructure API categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing AI inference endpoints (sentiment, summarization, classification, embeddings) without API key signup","Fetching real-time financial data like token quotes, exchange rates, and gas estimates on a per-call basis","Running utility operations like geocoding, validation, and data conversion with micropayments"],"bestFor":["Agents or developers who want instant API access without registration or API keys","Low-volume or sporadic API usage where per-call pricing is more economical than subscriptions","Crypto-native workflows that can settle payments in USDC on Base"],"notFor":["High-volume production workloads where per-request pricing at $0.02 adds up quickly","Users who need detailed API documentation, schemas, or guaranteed SLAs before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:46.653Z"},"updatedAt":"2026-04-23T15:00:46.076Z"}}