{"id":"c9cdca01-180f-4e99-a207-085e830e3bb4","shortId":"EJKjYK","kind":"x402","title":"x402-gated product inventory endpoint on Base, pay-per-request with USDC.","tagline":"x402-gated product inventory endpoint on Base, pay-per-request with USDC.","description":"This endpoint at lowpaymentfee.com provides access to a product inventory resource (product ID 97) via the x402 payment protocol. It is part of a broader platform that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind x402 challenges on the Base network.\n\nThe specific endpoint `/api/v1/products/97/inventory` is listed as \"Premium API Access\" and accepts POST requests. Payment is settled in USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum cost of 0.02 USDC per request (20,000 base units at 6 decimals). The x402 challenge was successfully captured, confirming the endpoint is live. There are no API keys or rate limits advertised; access is granted purely through per-request micropayments.\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the inventory data actually contains or what fields the POST body expects. The endpoint's purpose — whether it returns stock levels, product details, or something else — must be inferred from the URL path alone. Prospective users should expect to experiment or contact the provider for integration details.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","product-inventory","pay-per-request","no-api-key","post-endpoint"],"categories":["commerce","data"],"synonyms":["product inventory API","x402 inventory endpoint","USDC micropayment API","Base network API","pay-per-call inventory","lowpaymentfee API","product stock API"],"warnings":["No documentation available — all doc pages return only a 'Connect wallet' prompt","No request body schema or response schema provided; endpoint behavior must be discovered experimentally","The endpoint path suggests product inventory but the exact data model is unspecified","Listed as 'Premium API Access' which is a generic label, not a descriptive name"],"endpointUrl":"https://lowpaymentfee.com/api/v1/products/97/inventory","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/products/97/inventory","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC per request on Base). However, there is no OpenAPI schema, no request/response examples, and no meaningful documentation — the docs pages all render only a wallet-connect prompt. The actual data returned by this endpoint 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":"2026-04-18T22:00:30.978Z","embedding":[-0.01209259,0.0031433105,0.021377563,0.009925842,0.007118225,-0.044830322,0.010467529,0.04260254,0.06549072,-0.08325195,0.044677734,-0.056365967,-0.0418396,-0.053344727,-0.023345947,0.009239197,-0.017150879,0.02166748,-0.08880615,0.02027893,0.025466919,-0.026107788,-0.011230469,0.026519775,-0.023391724,-0.015556335,-0.021331787,-0.0006699562,-0.01524353,-0.03753662,0.019882202,-0.02772522,-0.021621704,0.026870728,0.00063610077,0.024093628,0.02960205,0.045806885,0.05050659,-0.021087646,-0.009742737,-0.04321289,-0.011894226,-0.0037879944,-0.03805542,-0.0026302338,-0.009841919,-0.025604248,-0.006690979,-0.026443481,-0.01096344,-0.0037498474,-0.0087890625,0.011550903,0.0033283234,0.014961243,-0.0019874573,0.006122589,-0.0056915283,0.036499023,0.018981934,-0.08972168,0.011329651,-0.016983032,0.00024294853,0.050994873,-0.010955811,0.060180664,-0.008575439,0.051239014,0.010360718,0.04067993,-0.015296936,0.018203735,-0.023223877,-0.0025539398,-0.026657104,0.032440186,-0.020843506,-0.026229858,-0.033233643,-0.0044021606,-0.03567505,-0.026535034,-0.020767212,-0.060699463,0.008338928,0.005153656,-0.03161621,0.016479492,-0.09686279,0.0031604767,0.0023708344,0.020935059,-0.025726318,-0.042266846,-0.008308411,0.0053138733,-0.013473511,0.040771484,0.012756348,-0.0017776489,0.016311646,-0.0047454834,0.045166016,0.018188477,0.0070991516,0.024597168,-0.0043945312,-0.051086426,-0.020080566,-0.022827148,-0.0014009476,0.01890564,0.0074539185,-0.009170532,-0.027328491,0.015655518,-0.008613586,0.0463562,-0.044830322,0.06689453,0.0021915436,-0.022918701,0.015853882,-0.037017822,-0.03060913,0.0002965927,-0.028945923,-0.01499939,0.039001465,-0.008308411,0.008384705,-0.045837402,-0.04095459,0.01927185,-0.021026611,-0.027252197,-0.0625,0.0064964294,0.015068054,-0.03756714,0.027389526,0.007019043,-0.093688965,-0.02619934,-0.019134521,0.013343811,-0.026550293,-0.004096985,0.027832031,0.012481689,-0.008964539,-0.04510498,0.00818634,-0.02470398,-0.02507019,0.054016113,0.004638672,0.013694763,-0.006679535,0.023010254,0.039398193,-0.012496948,0.019073486,0.033843994,-0.02130127,-0.07733154,-0.068847656,-0.017486572,0.0087890625,0.0060043335,-0.0126953125,0.0031089783,-0.020080566,-0.045776367,-0.021270752,0.00094270706,-0.017044067,-0.046051025,-0.019317627,-0.05593872,-0.0105896,-0.03515625,-0.05419922,-0.018447876,-0.042999268,0.044677734,0.019012451,-0.00579834,0.01586914,0.015281677,0.047729492,0.030960083,0.015350342,-0.052764893,0.0046539307,-0.022979736,0.05493164,-0.013320923,0.022979736,-0.033294678,0.045898438,0.055786133,-0.0069732666,-0.021453857,-0.0067749023,-0.002090454,-0.042388916,-0.018753052,0.016677856,0.0056381226,0.0047073364,0.033569336,-0.0060157776,-0.022109985,0.011367798,0.048583984,0.0070724487,0.078308105,-0.007507324,0.0070228577,0.0050201416,0.007499695,-0.031555176,0.055786133,0.027252197,0.025741577,0.01626587,-0.0501709,-0.0048446655,0.020385742,-0.015197754,-0.02708435,-0.017211914,0.03640747,-0.027496338,0.002872467,0.016174316,-0.02229309,-0.008201599,-0.047790527,-0.010932922,-0.0025157928,0.020446777,-0.021224976,-0.049560547,-0.08154297,0.040374756,0.04675293,0.016479492,-0.0010948181,0.009735107,-0.018844604,-0.0027275085,-0.07287598,-0.0016555786,0.044525146,-0.03567505,-0.013839722,0.017608643,-0.016403198,-0.026443481,-0.020721436,-0.021240234,-0.0035743713,0.022399902,0.0076065063,-0.05682373,-0.002254486,0.018554688,0.0050354004,0.05795288,-0.027618408,-0.055877686,-0.010269165,-0.018508911,0.008796692,-0.027908325,0.0032424927,-0.020996094,0.022018433,0.01586914,0.008148193,0.022338867,0.021881104,0.017929077,0.03050232,-0.009498596,-0.008583069,-0.007633209,0.026382446,0.0043754578,-0.059631348,0.038909912,-0.014221191,0.06011963,-0.03753662,0.04296875,-0.014724731,0.019042969,0.05517578,-0.008583069,-0.05783081,-0.017944336,0.019714355,0.02960205,0.03050232,0.0028648376,-0.0059280396,-0.021911621,0.05847168,-0.009986877,-0.005870819,0.012710571,0.032958984,0.019348145,-0.0126953125,-0.056610107,-0.022506714,-0.008583069,-0.03869629,0.0335083,-0.012382507,0.030639648,-0.04156494,-0.019241333,-0.03353882,0.002336502,-0.03237915,-0.020965576,-0.0012617111,0.0053710938,-0.007083893,0.0026130676,0.0048599243,0.04095459,-0.015991211,0.000705719,0.016571045,0.043670654,-0.019088745,-0.023529053,-0.029525757,-0.002210617,-0.010253906,-0.0038833618,0.038879395,0.00032138824,0.006664276,-0.034729004,0.00806427,0.033996582,-0.0020313263,0.028182983,-0.009086609,0.0057640076,-0.05545044,-0.051452637,-0.025787354,-0.054229736,0.03262329,0.03652954,0.018417358,0.026992798,-0.041137695,0.020584106,-0.058685303,0.02659607,-0.042144775,0.03274536,0.043518066,-0.019882202,-0.06512451,-0.016677856,0.013702393,0.012306213,0.04321289,0.0075149536,0.032440186,0.085510254,0.036315918,0.019515991,0.01776123,0.025527954,0.0234375,-0.016967773,0.007987976,-0.048706055,-0.022079468,0.016189575,-0.015411377,-0.011894226,-0.04220581,0.017166138,0.014038086,0.072143555,-0.013549805,0.019866943,0.04663086,0.020553589,0.0018968582,-0.027618408,-0.024902344,-0.019622803,-0.03765869,0.042114258,0.009788513,0.010131836,-0.022399902,0.023162842,0.003206253,0.02696228,-0.032958984,0.05078125,0.019485474,-0.01171875,0.019897461,0.028152466,0.058898926,0.05911255,-0.04006958,0.012825012,0.03491211,-0.055389404,-0.005504608,0.011253357,-0.012001038,-0.029846191,-0.051940918,-0.016662598,0.024093628,0.0039482117,-0.037353516,-0.013336182,-0.023223877,0.00818634,0.029403687,-0.016998291,-0.027862549,-0.0017690659,0.00137043,-0.05038452,-0.020935059,-0.03137207,0.0078125,0.0317688,-0.020584106,0.0012741089,0.0006017685,-0.0030326843,-0.035339355,0.003004074,0.00035357475,-0.00818634,0.009086609,-0.007843018,0.0016822815,0.009468079,0.013793945,0.012779236,0.06536865,0.029891968,0.04269409,0.021087646,0.0026721954,-0.05154419,0.01939392,-0.020050049,0.011886597,0.003730774,-0.06463623,-0.013999939,-0.047973633,-0.04449463,0.011642456,0.0012931824,-0.0028896332,-0.019897461,0.03111267,-0.011390686,-0.018875122,-0.06677246,-0.0050697327,0.0023078918,0.1003418,0.016784668,0.008033752,-0.073913574,-0.009674072,0.02229309,0.009338379,0.0069503784,-0.015335083,-0.011421204,-0.025787354,-0.0008687973,-0.02519226,-0.011039734,0.047729492,0.014579773,-0.026885986,0.028915405,-0.016815186,0.0012741089,0.019638062,-0.0013256073,0.026779175,0.0038394928,-0.001449585,-0.020736694,0.044433594,-0.013626099,-0.014060974,-0.046173096,0.037261963,-0.012336731,0.037200928,-0.03137207,0.01184082,-0.006832123,0.016189575,-0.016403198,-0.001408577,-0.014381409,-0.0033073425,-0.051483154,-0.064453125,0.018661499,-0.028396606,0.025283813,0.016784668,-0.012619019,0.0574646,0.0013237,0.022583008,0.024261475,-0.028015137,-0.011039734,-0.03616333,-0.01977539,-0.024398804,-0.01876831,-0.020568848,0.014816284,-0.013534546,0.03717041,-0.014564514,-0.028045654,0.038970947,0.004749298,0.029022217,0.010826111,0.00027012825,0.028152466,0.049468994,-0.011489868,-0.062286377,0.031280518,0.0031814575,-0.0016059875,-0.016784668,0.018081665,0.019332886,-0.0096588135,-0.017028809,-0.008987427,-0.0016727448,-0.044708252,-0.004425049,-0.0149002075,0.04196167,0.0088272095,-0.027435303,0.029190063,0.034332275,-0.019180298,-0.0368042,0.023803711,0.03390503,-0.029373169,0.0025234222,0.028625488,0.049591064,-0.031341553,0.0031108856,0.0154418945,0.0357666,0.02848816,-0.0046195984,-0.013031006,0.0020179749,-0.00014007092,0.005569458,0.004421234,-0.007003784,0.004070282,-0.00932312,0.014404297,0.010665894,0.0024662018,-0.0019435883,-0.022567749,0.0045433044,-0.011543274,-0.0063171387,0.041137695,0.03161621,0.009315491,0.005458832,0.010284424,0.032562256,-0.021957397,-0.0044555664,-0.023483276,0.02684021,0.0023384094,0.006587982,0.013282776,0.0062294006,0.039916992,-0.044525146,-0.007461548,0.0104599,0.018814087,-0.006931305,-0.03387451,-0.041137695,-0.016479492,0.03314209,0.01939392,0.0018625259,0.02420044,0.013931274,0.00459671,0.0066833496,0.00047183037,-0.006958008,-0.027679443,-0.011474609,0.00818634,0.020126343,-0.012252808,-0.022262573,0.022537231,-0.034606934,-0.0069770813,0.022338867,-0.04699707,0.0055885315,0.0047950745,-0.01499176,0.017684937,0.0033359528,0.017501831,-0.0016622543,-0.044189453,-0.01586914,0.017181396,0.029052734,-0.041168213,0.010917664,0.024673462,-0.005268097,-0.01727295,0.014671326,0.022583008,0.028656006,0.02368164,0.03656006,-0.026901245,0.018753052,-0.023071289,-0.013084412,-0.0032234192,-0.028335571,-0.0011482239,-0.015098572,-0.020751953,0.04144287,-0.004787445,0.0067863464,-0.009017944,-0.021377563,-0.028549194,-0.06097412,0.026290894,0.034820557,0.03515625,-0.019226074,0.004180908,0.0027866364,-0.006374359,-0.012298584,-0.024551392,-0.028182983,0.034118652,0.00005120039,0.0038700104,-0.027801514,-0.029632568,-0.024307251,0.009117126,-0.03466797,-0.0446167,0.0011777878,0.0030460358,-0.016723633,0.0023899078,0.0005197525,-0.012077332,0.020553589,-0.03225708,0.0013742447,0.006011963,0.004901886,0.018341064,-0.023590088,0.0049705505,0.023391724,-0.016677856,0.044769287,-0.004470825,0.01159668,-0.048706055,0.0050849915,0.04498291,0.031921387,0.005065918,-0.03515625,0.01134491,-0.029266357,-0.06439209,-0.014923096,0.017501831,0.006717682,-0.007926941,0.00024795532,-0.028198242,-0.0010242462,-0.037017822,0.010444641,-0.010604858,0.037261963,0.008766174,-0.005794525,-0.00089120865,0.017974854,-0.032714844,-0.038024902,0.004447937,0.010955811,-0.024917603,0.028289795,0.064331055,-0.004299164,0.001077652,-0.008285522,-0.0061187744,0.029052734,-0.023849487,-0.0037174225,0.00017905235,0.023895264,-0.015083313,-0.01586914,-0.015792847,0.008590698,0.059265137,0.020584106,0.029891968,-0.015571594,-0.022094727,0.009101868,0.01928711,-0.041992188,0.008232117,-0.03375244,0.02999878,-0.03793335,0.019683838,0.0113220215,0.024490356,0.014297485,-0.015304565,-0.007381439,0.01663208,0.030639648,-0.06695557,-0.026763916,-0.056243896,0.0073890686,-0.009895325,-0.03338623,-0.011642456,-0.009864807,-0.010620117,-0.07720947,0.007965088,0.044708252,0.0027427673,0.013969421,-0.016647339,0.026885986,0.03781128,-0.014183044,-0.030776978,0.010398865,-0.018829346,-0.016311646,-0.034484863,0.03475952,0.0064582825,-0.014656067,0.013038635,-0.020889282,0.025131226,0.005504608,0.013771057,-0.0046043396,-0.011566162,-0.007659912,-0.0030078888,-0.016860962,-0.024490356,0.041534424,-0.043701172,0.009567261,0.03274536,-0.005168915,0.017471313,0.015716553,0.01979065,-0.031829834,0.0025081635,0.025970459,0.020965576,0.030563354,-0.015396118,0.03363037,0.008140564,-0.010192871,0.009811401,-0.029449463,0.0068130493,-0.035339355,-0.011543274,0.017868042,-0.008575439,0.014816284,-0.022155762,-0.0057525635,0.023788452,0.0032405853,0.013000488,-0.015464783,-0.01852417,-0.031433105,0.011222839,0.005821228,-0.007270813,-0.00097084045,0.020065308,0.026489258,0.02909851,0.0028820038,0.012756348,0.0011386871,0.042022705,-0.006668091,0.01486969,-0.0019168854,0.0129470825,0.03829956,-0.0001616478,0.027389526,-0.02607727,0.0021915436,0.0025730133,-0.0046463013,0.011741638,-0.0013751984,0.01701355,0.0014228821,0.0047950745,0.009025574,-0.034942627,0.018417358,-0.030960083,-0.0256958,-0.0048446655,-0.0010204315,0.022842407,0.01727295,-0.015975952,-0.006225586,0.0015182495,0.028259277,0.01586914,-0.00038671494,0.012817383,0.034851074,0.013298035,-0.009384155,-0.011657715,-0.00333786,0.004020691,0.01461792,-0.0044021606,0.024032593,0.028182983,0.008132935,0.007820129,0.007774353,0.025619507,-0.017059326,0.008026123,0.017822266,0.022979736,-0.014801025,0.027542114,-0.033935547,0.0032138824,0.025634766,0.017654419,0.01158905,-0.025238037,-0.038970947,0.03717041,0.014274597,-0.00083351135,0.029129028,-0.011833191,0.03201294,-0.02178955,-0.035125732,-0.011817932,-0.01902771,-0.013442993,-0.013290405,-0.009384155,-0.024658203,0.037261963,-0.044525146,0.030853271,-0.05419922,0.0076141357,0.004219055,-0.001083374,-0.016677856,-0.03060913,-0.0066108704,0.023376465,-0.027679443,-0.01737976,0.009727478,0.03945923,0.0066070557,0.014221191,0.035949707,0.016052246,0.001750946,-0.041137695,-0.018676758,0.0037994385,-0.005168915,0.025039673,-0.035247803,0.060333252,0.0385437,0.013626099,0.038635254,0.022476196,0.05014038,0.0034618378,0.028808594,-0.0005531311,-0.0027694702,-0.018447876,0.010482788,0.0055160522,0.048797607,-0.019546509,0.02192688,0.0065727234,0.051605225,-0.02432251,0.006259918,0.05911255,0.021530151,-0.00037384033,0.0368042,0.008216858,-0.03050232,-0.017944336,0.003578186,0.06213379,-0.0063591003,0.032714844,0.015396118,-0.011932373,-0.0014772415,0.010871887,-0.025299072,-0.03463745,0.055236816,0.03152466,0.025253296,-0.011787415,0.0124053955,0.007785797,-0.027679443,-0.023803711,0.023239136,0.0129776,0.005142212,-0.019439697,-0.005176544,-0.011940002,0.009155273,0.0032405853,-0.0039024353,-0.011329651,0.03463745,0.018829346,0.00026988983,0.038146973,0.0134887695,0.03338623,-0.03555298,-0.004058838,0.005519867,0.025268555,0.0049972534,-0.015533447,0.018005371,0.020217896,0.051574707,0.040161133,-0.0033569336,-0.017684937,0.020767212,-0.011917114,-0.0033035278,0.032104492,0.018188477,0.004337311,0.047332764,0.028839111,0.02532959,-0.03692627,0.013595581,0.009941101,0.023986816,-0.021087646,-0.036254883,-0.012504578,-0.01927185,0.007381439,-0.0026626587,0.00818634,0.037353516,0.037750244,0.011695862,0.004135132,-0.0058135986,0.01687622,0.0013303757,-0.023239136,0.016342163,-0.017654419,0.0035419464,0.0046424866,0.019378662,-0.00086307526,0.03387451,-0.011230469,-0.017684937,0.005924225,0.0009403229,-0.03564453,0.0026474,0.0046958923,0.0060691833,-0.030395508,0.02217102,-0.0019626617,0.023925781,0.022644043,0.0047187805,-0.014724731,0.007171631,0.027435303,0.019866943,-0.00178051,0.014724731,-0.0032176971,-0.001200676,0.037078857,-0.015464783,0.010215759,0.00315094,-0.0024528503,0.00642395,-0.021270752,-0.005138397,0.011245728,0.012245178,-0.027893066,0.013496399,0.036071777,0.022262573,0.042663574,0.0060768127,-0.00083208084,0.00019776821,0.04156494,0.022140503,-0.0057678223,0.0027809143,-0.00055360794,-0.029632568,0.039611816,0.028579712,-0.0028076172,0.021453857,-0.02923584,-0.0018186569,0.01424408,-0.015304565,0.0056610107,-0.021209717,-0.0026111603,0.0065994263,0.017044067,-0.02168274,-0.025405884,-0.005168915,-0.032440186,-0.00995636,-0.028518677,0.0050315857,0.012329102,0.005340576,0.04333496,0.022857666,-0.00756073,0.056732178,-0.011222839,0.022216797,-0.018188477,0.0036354065,0.045135498,0.0385437,0.025238037,0.0006008148,-0.009437561,-0.009063721,-0.011543274,0.026306152,0.023971558,0.00756073,-0.031829834,-0.02709961,0.03024292,-0.012336731,0.0178833,0.031036377,-0.003063202,0.0025901794,-0.016860962,-0.021133423,-0.017578125,0.0026664734,-0.013061523,0.043151855,-0.004398346,0.025390625,-0.02243042,-0.0088272095,0.025772095,0.00052165985,0.014541626,-0.007335663,-0.027496338,0.034484863,-0.0069389343,0.0039901733,0.00007534027,0.018920898,-0.05404663,0.011207581,0.0054740906,0.012542725,-0.010513306,0.04437256,0.017227173,-0.013999939,-0.0014801025,0.041015625,-0.028579712,0.028808594,-0.013259888,0.05041504,0.049865723,-0.024887085,-0.0009508133,0.004749298,0.0035915375,-0.015052795,0.003604889,0.030090332,0.0066947937,0.01663208,-0.000024139881,0.003578186,0.0018625259,0.025436401,-0.0035858154,-0.00070238113,-0.024337769,-0.0074882507,0.032287598,0.01133728,0.009819031,-0.00073957443,0.015151978,-0.008865356,0.0033473969,0.043518066,0.0048179626,-0.047729492,0.00944519,0.0062713623,0.016525269,-0.027282715,-0.0129470825,0.0009160042,-0.03982544,-0.006401062,0.020462036,0.0036373138,0.014312744,-0.030090332,-0.008651733,0.036865234,0.019119263,0.008468628,0.019546509,0.005554199,0.013267517,-0.04135132,0.004962921,-0.017623901,0.00843811,0.021881104,0.007633209,-0.0034656525,-0.001168251,0.011672974,0.032287598,0.010803223,0.017364502,-0.014221191,0.044830322,-0.027694702,-0.009506226,0.00034976006,0.017227173,-0.03353882,-0.000685215,-0.010795593,0.026550293,0.036132812,-0.02319336,-0.0066871643,0.0077590942,0.027862549,-0.001288414,0.024154663,0.010597229,0.053588867,0.019927979,-0.028366089,-0.03048706,0.018585205,-0.02519226,-0.033233643,-0.0050697327,-0.024841309,-0.0049858093,0.005935669,0.029312134,0.0022354126,-0.012702942,-0.019897461,0.006580353,-0.005176544,0.023239136,-0.009391785,0.003944397,-0.0027236938,-0.0017681122,0.019012451,-0.013557434,-0.02027893,-0.015281677,-0.03137207,-0.012641907,-0.047698975,-0.0017309189,-0.004047394,0.0063209534,-0.017959595,0.001701355,-0.020248413,0.022460938,-0.014831543,-0.0050468445,0.025039673,0.038269043,0.016189575,-0.0033779144,0.0101623535,-0.0135269165,-0.04006958,-0.032440186,-0.019866943,-0.00756073,0.020751953,-0.020492554,0.03503418,0.02709961,0.013214111,0.00028967857,0.004425049,-0.01424408,-0.012771606,0.00039863586,-0.019744873,0.021484375,0.011688232,0.01020813,-0.00055885315,0.022949219,-0.015823364,-0.019638062,0.0062294006,0.047332764,0.01474762,0.011947632,0.018157959,0.0033740997,-0.02722168,-0.008560181,-0.00008863211,0.00096178055,0.00919342,0.004337311,-0.016159058,0.033477783,0.011245728,-0.012763977,0.00018286705,0.043670654,0.011886597,0.0038375854,0.047698975,0.012107849,0.011833191,-0.027175903,-0.02947998,0.0017499924,0.015823364,0.000341177,0.028259277,0.00058460236,0.0048103333,-0.020401001,0.01423645,0.004878998,-0.021011353,-0.03656006,-0.012275696,-0.038085938,0.02180481,0.009124756,0.0024604797,-0.01878357,0.012649536,-0.007522583,-0.024871826,-0.02998352,0.02178955,0.027359009,-0.011695862,-0.031585693,0.0061149597,0.0037765503,-0.009300232,-0.0004775524,-0.04724121,-0.02507019,-0.0064964294,-0.009216309,0.0043029785,-0.0004079342,-0.037841797,0.0018205643,-0.0096588135,-0.0110321045,-0.0047569275,0.033721924,-0.009552002,0.0018568039,0.032836914,0.008491516,0.014579773,0.009857178,-0.026382446,-0.0073547363,0.023147583,0.00248909,0.0022602081,-0.008346558,0.04537964,0.013626099,-0.011642456,0.011817932,0.009849548,0.037902832,0.008880615,0.0023555756,-0.023742676,-0.0044174194,0.024856567,-0.015556335,-0.02178955,0.0039138794,-0.0045166016,-0.019424438,0.01398468,0.017837524,0.010139465,-0.021270752,0.013404846,-0.024658203,-0.033416748,0.01033783,0.014656067,-0.017166138,0.0020065308,0.0362854,0.001373291,-0.0051994324,0.012588501,0.00041151047,-0.0073432922,-0.009284973,-0.00033926964,-0.03793335,-0.0030937195,-0.0037117004,-0.004589081,0.06304932,0.014801025,0.015625,0.025634766,0.008300781,0.030670166,0.009590149,0.023986816,0.0018634796,0.009811401,0.0033340454,0.016647339,-0.013038635,0.0023345947,-0.027618408,-0.0063819885,-0.0206604,-0.0044441223,-0.003900528,0.013511658,-0.012168884,0.0064353943,-0.0024795532,0.0072364807,-0.03074646,0.030593872,-0.017807007,-0.00040745735,0.04611206,0.030883789,0.022964478,-0.0023784637,-0.033203125,0.018936157,0.054382324,-0.024368286,-0.03164673,0.012771606,0.021377563,0.005680084,-0.0016937256,0.001086235,-0.035980225,-0.019012451,-0.0054626465,0.005191803,-0.015823364,0.006702423,0.028259277,0.011543274,0.0109939575,-0.0014209747,0.025939941,-0.009803772,0.0051612854,0.01828003,0.0032043457,0.014549255,0.007144928,-0.030212402,0.02218628,0.011016846,-0.03640747,0.05996704,-0.012496948,-0.0052833557,-0.0050582886,0.004699707,-0.036956787,-0.00793457,-0.0062942505,-0.012359619],"createdAt":"2026-04-18T18:35:33.713Z","updatedAt":"2026-04-22T18:30:46.915Z","lastSeenAt":"2026-04-22T18:30:46.915Z","tsv":"'/api/v1/products/97/inventory':86 '0.02':111 '000':116 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':105 '20':115 '6':120 '97':42 'Base network API' 'USDC micropayment API' 'accept':94 'access':34,92,142 'actual':190 'advertis':141 'ai/ml':67 'alon':220 'analyt':66 'api':63,91,136,158 'base':8,22,81,103,117 'base-network' 'behind':76 'bodi':197 'broader':53 'call':62 'captur':127 'challeng':78,124 'confirm':128 'connect':167 'contact':228 'contain':191 'content':173 'contract':104 'cost':109 'crawl':156 'crypto':70 'data':65,189 'decim':121 'descript':184 'detail':209,233 'doc':157 'document':151 'dozen':57 'els':212 'endpoint':6,20,30,85,130,200 'exampl':181 'expect':198,224 'experi':226 'extrem':153 'field':194 'financ':69 'gate':3,17,75 'grant':144 'id':41 'infer':68,215 'integr':232 'inventori':5,19,38,188 'key':137 'level':207 'limit':140 'list':88 'live':132 'lowpaymentfee API' 'lowpaymentfee.com':32 'maximum':108 'micropay':150 'must':213 'network':82 'no-api-key' 'offer':56 'openapi':177 'page':162 'part':50 'path':219 'pay':10,24,60 'pay-per-cal':59 'pay-per-call inventory' 'pay-per-request':9,23 'payment':46,97 'per':11,25,61,113,148 'per-request':147 'platform':54 'post':95,196 'post-endpoint' 'premium':90 'price':159 'product':4,18,37,40,208 'product inventory API' 'product stock API' 'product-inventory' 'prompt':169 'prospect':221 'protocol':47 'provid':33,230 'pure':145 'purpos':202 'rate':139 'readm':161 'request':12,26,96,114,149 'request/response':180 'resourc':39 'return':164,205 'schema':178 'servic':73 'settl':99 'someth':211 'span':64 'spars':154 'specif':84 'stock':206 'substant':172 'success':126 'unit':118 'url':218 'usdc':14,28,101,112 'usdc-settlement' 'user':222 'util':72 'via':43 'wallet':168 'whether':203 'x402':2,16,45,77,123 'x402 inventory endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"bb6ea82d-cdb7-400e-8e6f-0951a78c4d88","listingId":"c9cdca01-180f-4e99-a207-085e830e3bb4","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/products/97/inventory","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:35:33.713Z"}],"sources":[{"listingId":"c9cdca01-180f-4e99-a207-085e830e3bb4","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/products/97/inventory","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:33.713Z","lastSeenAt":"2026-04-22T18:30:46.915Z"}],"details":{"listingId":"c9cdca01-180f-4e99-a207-085e830e3bb4","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/products/97/inventory \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{}'","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 with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/products/97/inventory"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, 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/products/97/inventory"},{"claim":"Docs, API, pricing, and README pages all returned only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Querying product inventory data with per-request USDC micropayments","Integrating inventory checks into agent workflows without API key management","Programmatic access to product-level data on a crypto-native payment rail"],"bestFor":["Agents or bots that need keyless, pay-as-you-go API access","Developers building on Base who want USDC-settled data endpoints","Prototyping inventory integrations without subscription commitments"],"notFor":["Users needing detailed API documentation or guaranteed SLAs before integrating","High-volume inventory queries where per-request pricing may add up versus bulk plans","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:50.352Z"},"updatedAt":"2026-04-22T18:30:46.915Z"}}