{"id":"d01e5826-1d01-404d-9020-965120d531fc","shortId":"E2Nsr7","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, paying per-call in USDC.","tagline":"x402-gated Stripe invoice endpoint on Base, paying per-call in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 payment challenge. The specific resource path (`/api/v1/stripe/invoices/152`) suggests it returns or processes a Stripe invoice record (invoice #152). Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 0.02 USDC per request (20,000 base units at 6 decimals). The endpoint accepts HTTP POST and returns application/json.\n\nThe broader lowpaymentfee.com platform advertises a suite of x402-gated APIs spanning data & analytics, AI/ML inference (sentiment analysis, 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 — payment is handled entirely via the x402 protocol on Base.\n\nDocumentation is extremely sparse: the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawl. The endpoint is confirmed live (402 challenge captured), but the actual behavior behind the paywall is unknown.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","stripe-invoice","per-call-pricing","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 paid API","USDC micropayment API","pay-per-call API","Base network API","lowpaymentfee","crypto payment endpoint"],"warnings":["No API documentation available — /docs, /api, /pricing, and /README all return only 'Connect wallet'","No OpenAPI or schema specification found","Actual response format and content behind the paywall are unknown","The specific invoice endpoint (/invoices/152) may be a static demo resource rather than a general-purpose API","No robots.txt or agents.txt present"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/152","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/stripe/invoices/152","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual functionality behind the paywall is entirely opaque — the description 'Premium API Access' and path '/stripe/invoices/152' are the only hints.","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":"2026-04-19T10:18:33.977Z","embedding":[-0.016189575,-0.016418457,0.025314331,-0.009262085,0.001707077,-0.012382507,-0.021102905,0.012962341,0.0385437,-0.07519531,0.034118652,-0.041778564,-0.054840088,-0.03933716,-0.022338867,0.015541077,-0.020690918,0.02798462,-0.061706543,0.046875,0.03866577,-0.0061416626,0.0008111,0.022079468,-0.0093307495,-0.014663696,-0.016723633,-0.026138306,-0.014022827,-0.020202637,0.04437256,-0.024993896,-0.0038986206,0.0014867783,0.00058984756,-0.00043439865,0.004673004,0.045562744,0.025527954,-0.01096344,-0.026473999,-0.050079346,0.0061302185,-0.0010738373,0.0018491745,0.006034851,0.037475586,-0.0090789795,-0.005836487,0.002067566,-0.051605225,-0.010032654,0.0146102905,-0.009025574,0.011604309,0.027252197,0.015380859,-0.016555786,0.015914917,0.026168823,0.012184143,-0.08892822,-0.011230469,-0.013969421,0.008369446,0.061920166,-0.025802612,0.062927246,0.0017528534,0.03933716,0.0068359375,0.062805176,0.03643799,0.01637268,0.0074653625,-0.032196045,0.026565552,0.059509277,0.0021076202,-0.007598877,-0.0075798035,-0.022277832,-0.08795166,-0.013298035,-0.006175995,-0.046020508,-0.024291992,-0.02217102,-0.034423828,0.033813477,-0.09503174,-0.021057129,-0.005596161,0.0011739731,0.011108398,-0.011741638,-0.02420044,0.0013904572,-0.008651733,0.010978699,0.014221191,-0.01889038,0.013336182,0.009735107,0.0513916,0.029937744,0.03942871,0.026153564,-0.012145996,-0.004917145,-0.027420044,0.016143799,0.0034275055,-0.039855957,0.014732361,0.0025043488,-0.010543823,0.026031494,-0.014343262,0.013450623,-0.059387207,0.047943115,-0.025268555,0.0063171387,0.022644043,-0.04296875,-0.020019531,0.0012731552,-0.03994751,-0.016815186,0.015380859,0.007156372,0.0132751465,-0.034729004,-0.03250122,0.016433716,0.017623901,-0.026275635,-0.04257202,-0.012840271,0.029083252,-0.019744873,0.0231781,0.02166748,-0.08258057,-0.0058670044,-0.046447754,0.0105896,-0.031951904,-0.005142212,0.01171875,0.030258179,-0.003479004,-0.0067634583,-0.034942627,-0.016983032,-0.0073776245,0.026153564,0.0022029877,0.02911377,-0.0051727295,0.019760132,0.059448242,0.023727417,0.021575928,0.04046631,-0.004878998,-0.083618164,-0.07635498,-0.009216309,0.0040359497,-0.018493652,-0.04977417,0.008155823,-0.0062446594,-0.06628418,-0.027328491,-0.017364502,0.0078048706,-0.051605225,-0.027938843,-0.005584717,-0.006198883,-0.024139404,-0.05105591,-0.009048462,-0.030685425,0.045654297,0.029693604,0.05355835,0.02268982,0.005657196,0.043640137,0.03768921,-0.0038089752,-0.026672363,0.03111267,-0.02986145,0.022262573,-0.00819397,0.022018433,-0.03173828,0.03579712,0.062347412,0.005004883,-0.02180481,-0.0096206665,-0.042510986,-0.015357971,-0.011894226,0.0012207031,0.017410278,-0.016021729,0.006122589,-0.049194336,-0.012367249,-0.014411926,0.0070228577,0.038146973,0.047058105,0.0073661804,-0.0011701584,0.010810852,0.011726379,-0.023544312,0.044891357,0.027618408,0.028793335,-0.018692017,-0.028182983,0.027404785,0.018585205,-0.012107849,-0.0025920868,-0.01979065,0.019226074,-0.026290894,-0.021499634,0.010681152,-0.013206482,-0.040374756,-0.021499634,0.015213013,0.0071029663,0.026229858,-0.009666443,-0.041046143,-0.06842041,0.039215088,0.044067383,0.021026611,0.012870789,-0.024017334,-0.017837524,-0.013465881,-0.08087158,0.04949951,0.058929443,-0.005683899,0.0016040802,0.03277588,-0.0032424927,-0.043640137,-0.013267517,-0.014877319,-0.023544312,-0.021484375,0.018478394,-0.044647217,0.004886627,0.010765076,0.012527466,0.06524658,-0.017868042,-0.03201294,-0.03338623,0.0067253113,0.009864807,-0.02571106,0.005039215,-0.0126953125,0.008003235,0.021362305,0.019714355,0.008720398,0.025512695,0.016143799,-0.025665283,0.010612488,-0.030654907,-0.03173828,0.04171753,-0.011932373,-0.059570312,0.020736694,-0.020690918,0.039398193,-0.052093506,0.02268982,-0.023117065,0.018569946,0.040618896,-0.0073661804,-0.030654907,-0.0003209114,0.036193848,0.026107788,0.06262207,0.018325806,0.01386261,-0.024597168,0.046813965,-0.021881104,-0.020492554,0.033111572,0.023422241,0.04208374,0.0012960434,-0.06384277,-0.055236816,0.0070495605,-0.006587982,0.03390503,-0.008956909,0.052368164,-0.012397766,0.010169983,-0.017791748,-0.011291504,-0.019454956,0.023117065,-0.00907135,0.001200676,0.0038585663,-0.024368286,0.011497498,0.0066566467,0.006549835,0.0012807846,0.056793213,0.009346008,-0.043914795,-0.029327393,-0.031982422,-0.01687622,-0.010986328,0.02734375,0.0039138794,0.041046143,0.04623413,-0.050231934,0.011680603,0.019882202,-0.013397217,0.017852783,0.0056495667,0.019210815,-0.0713501,-0.02619934,-0.021881104,-0.05316162,0.032287598,-0.024932861,0.026992798,0.04675293,0.0065841675,-0.032318115,-0.026351929,0.027175903,-0.050964355,0.022338867,0.018203735,-0.0031166077,-0.022705078,-0.0022087097,0.013687134,0.0050086975,0.053588867,0.0071983337,0.025222778,0.07348633,0.034240723,0.009803772,-0.0017747879,-0.0034065247,0.038085938,-0.004837036,-0.009376526,-0.016799927,0.006668091,0.03463745,-0.017944336,-0.031082153,-0.07336426,0.06121826,0.023086548,0.04953003,0.010528564,-0.011116028,0.0524292,0.024963379,-0.0066108704,-0.030334473,-0.024520874,-0.050750732,-0.032043457,0.03289795,-0.01826477,0.012954712,-0.03286743,0.008460999,-0.0128479,-0.004753113,-0.027374268,0.028198242,-0.0041923523,0.008056641,0.022384644,0.011642456,0.07525635,0.056518555,-0.035827637,0.02507019,-0.0066604614,-0.027618408,0.014633179,0.034088135,0.0032291412,-0.020309448,-0.044769287,-0.021133423,0.020111084,-0.022949219,-0.058807373,-0.01197052,0.0026798248,0.02532959,0.022018433,0.004283905,-0.046081543,0.0024547577,-0.027908325,-0.05267334,0.005672455,-0.049682617,0.020019531,0.018295288,-0.02999878,0.013343811,-0.019805908,0.009895325,0.009292603,0.015342712,0.01285553,0.012031555,-0.036376953,0.01838684,0.01776123,0.01776123,0.021408081,0.04156494,0.025253296,0.0060424805,0.03479004,-0.00033831596,-0.006210327,-0.041809082,0.009422302,-0.02142334,0.012031555,0.015144348,-0.025222778,0.004272461,-0.017578125,-0.050964355,-0.026947021,0.00945282,-0.020065308,-0.009597778,0.013954163,-0.024673462,-0.0008773804,-0.054626465,-0.013763428,-0.015213013,0.06774902,0.0075187683,-0.009162903,-0.0715332,-0.0096588135,0.035003662,0.0073127747,0.031066895,-0.015342712,-0.01525116,-0.024353027,-0.042114258,-0.012794495,-0.016967773,0.02532959,0.005168915,-0.03994751,0.027313232,0.008781433,0.04135132,0.0073432922,0.013175964,0.0043792725,-0.017303467,-0.0031852722,-0.0234375,0.027526855,0.012802124,-0.029006958,-0.046142578,0.045837402,-0.0005354881,0.05267334,-0.025039673,-0.011978149,0.0038585663,0.00409317,0.014381409,-0.02583313,0.013656616,0.0138168335,-0.046142578,-0.066589355,0.006164551,-0.011238098,0.020736694,0.003118515,0.014022827,0.021896362,-0.016357422,0.025482178,0.018676758,-0.023223877,-0.011955261,-0.01399231,-0.0395813,-0.0054893494,0.00046944618,-0.00092077255,0.008300781,-0.009925842,0.008979797,-0.010765076,-0.026992798,0.04260254,0.01751709,0.011230469,0.036712646,-0.0032520294,0.020568848,0.04019165,0.014472961,-0.03604126,0.026687622,0.025802612,-0.0034122467,-0.030792236,0.01398468,0.008850098,-0.024459839,0.00081539154,-0.009002686,-0.0047912598,-0.01828003,-0.00066518784,0.015090942,0.04083252,0.013320923,-0.044952393,0.016143799,0.015060425,-0.0055122375,-0.020629883,0.014411926,0.023162842,-0.042510986,0.009475708,0.023864746,0.034820557,-0.020889282,0.013641357,-0.007987976,0.048950195,0.03137207,0.0016431808,0.0041046143,0.016418457,-0.003063202,0.0029964447,0.0031528473,-0.02079773,-0.014465332,-0.004650116,0.027450562,0.02720642,-0.0028877258,-0.009063721,-0.023117065,-0.0071258545,0.0019245148,-0.010658264,0.023880005,0.022109985,0.019577026,-0.006111145,0.017410278,0.017929077,-0.010536194,-0.02330017,0.007724762,0.009971619,-0.015571594,-0.00034189224,0.014259338,0.0021209717,0.037902832,-0.059570312,-0.0009021759,-0.0041885376,0.008575439,-0.02583313,-0.040161133,-0.03125,-0.018371582,0.038513184,-0.013702393,0.011375427,0.021621704,0.011451721,0.0038261414,-0.0073127747,0.020767212,0.0051345825,-0.000024497509,-0.05657959,-0.011390686,-0.015808105,0.0056419373,-0.04675293,0.025024414,-0.017364502,-0.019165039,0.020385742,-0.022994995,0.006626129,-0.0044441223,-0.006538391,0.01171875,0.0035896301,0.017654419,0.012710571,-0.027191162,-0.013587952,0.0022411346,0.029647827,-0.021469116,0.017822266,-0.017974854,0.008003235,-0.013687134,-0.01058197,0.031066895,0.036468506,0.0026626587,0.011131287,-0.024353027,0.040893555,-0.03387451,0.007396698,-0.007843018,-0.012489319,-0.02192688,-0.031982422,-0.01977539,0.037994385,-0.013710022,0.002658844,-0.014839172,-0.043121338,-0.031173706,-0.05517578,0.0072250366,0.022247314,0.05291748,-0.038238525,0.004459381,-0.005077362,0.0053100586,-0.01096344,-0.0052223206,-0.010414124,0.008811951,0.030929565,0.018951416,-0.015007019,-0.024353027,-0.044281006,-0.020874023,-0.049102783,-0.055877686,-0.022064209,0.034179688,0.00381279,-0.0072250366,-0.01802063,-0.021759033,-0.0007534027,-0.030395508,0.017166138,-0.005317688,0.023391724,0.0008587837,-0.009521484,0.0077934265,0.005870819,-0.0019025803,0.021270752,0.006664276,-0.002609253,-0.024551392,0.0024261475,0.011650085,0.005138397,0.026657104,-0.029220581,-0.003829956,-0.030044556,-0.04058838,0.000916481,-0.01235199,0.013900757,-0.0043754578,0.0008664131,-0.048614502,-0.014465332,-0.026748657,-0.010314941,0.015625,0.017944336,0.0049438477,-0.014625549,0.00043725967,-0.014419556,-0.017028809,-0.0423584,0.010986328,0.011062622,0.011100769,0.018096924,0.053649902,-0.011352539,-0.003572464,-0.01335144,0.02029419,0.037506104,-0.006904602,0.021362305,0.007045746,0.0020275116,-0.025161743,-0.0037384033,-0.04220581,0.029037476,0.06439209,0.029052734,-0.005455017,-0.009010315,-0.0118637085,0.016647339,0.026885986,-0.025054932,0.0013685226,-0.04309082,0.015655518,-0.014465332,0.013069153,0.02192688,0.032592773,-0.013153076,-0.054626465,0.0022258759,0.00793457,-0.012840271,-0.05923462,-0.017700195,-0.056365967,0.006099701,-0.01966858,-0.027297974,-0.0062179565,0.020614624,-0.006839752,-0.090148926,0.0118255615,0.036499023,0.017868042,0.049468994,-0.021392822,0.02798462,0.025009155,-0.021743774,-0.0020122528,0.033294678,-0.03086853,-0.02558899,-0.018157959,0.037841797,-0.011955261,-0.03652954,0.008590698,-0.010948181,0.021133423,-0.006084442,0.00831604,-0.02861023,0.02078247,0.0029716492,0.0060806274,-0.005142212,-0.021270752,0.058013916,-0.06890869,0.019012451,-0.013336182,0.00021147728,-0.006122589,0.040985107,0.043060303,-0.03845215,0.0020599365,0.0037727356,0.013175964,0.049224854,-0.015342712,0.03894043,0.017227173,0.011169434,0.010665894,-0.006034851,-0.0055007935,-0.049957275,-0.023040771,0.033416748,0.011817932,-0.0038719177,-0.019348145,-0.010360718,0.012771606,-0.0079574585,-0.00079870224,-0.019378662,-0.005218506,-0.014915466,0.01838684,-0.0009698868,0.011558533,-0.0033836365,0.031799316,0.03164673,0.038482666,-0.0012817383,-0.020248413,0.014945984,0.03050232,0.0075912476,-0.009765625,0.033233643,0.010803223,0.020523071,0.013885498,0.008705139,-0.013160706,-0.02003479,-0.0003323555,-0.006587982,0.010940552,-0.018066406,0.010345459,0.0006322861,0.00157547,0.002254486,-0.0051498413,0.03692627,-0.02897644,-0.021881104,-0.013160706,-0.006801605,0.027359009,0.006336212,-0.001241684,0.028945923,-0.0075798035,0.06088257,0.012466431,0.0040130615,0.034576416,0.0423584,0.013900757,-0.019989014,0.02458191,-0.0006508827,-0.0041999817,0.018096924,-0.027420044,0.025039673,0.03955078,-0.02407837,0.034820557,-0.005458832,0.015396118,-0.009468079,0.014007568,-0.008323669,-0.013221741,-0.01763916,0.053131104,-0.031555176,0.029571533,0.017669678,0.0016145706,-0.010643005,-0.026138306,-0.050445557,0.029891968,0.015274048,0.0118255615,0.042510986,0.00459671,0.025543213,-0.028717041,-0.026824951,-0.009963989,-0.038391113,-0.028686523,0.010528564,-0.0006914139,0.0041160583,0.01940918,-0.0029735565,-0.0035495758,-0.025924683,0.027664185,-0.007671356,0.0029029846,-0.02558899,-0.018371582,-0.017105103,-0.016494751,-0.016998291,0.012580872,0.0005955696,0.025787354,0.026870728,0.006252289,0.02331543,-0.002128601,-0.02468872,-0.020019531,-0.026168823,0.005130768,-0.0178833,-0.00969696,-0.030426025,0.024856567,0.06100464,0.016494751,0.04486084,0.04144287,0.030899048,-0.0045051575,0.036132812,-0.019012451,0.009613037,-0.03414917,0.029266357,0.0046195984,0.020065308,-0.028442383,-0.010795593,0.03050232,0.03466797,-0.007537842,0.021896362,0.06549072,0.016540527,-0.013442993,0.04449463,0.00003552437,-0.007926941,-0.026565552,-0.026855469,0.064331055,0.017181396,0.042053223,0.032104492,0.0025920868,-0.013252258,0.007030487,-0.02017212,-0.024536133,0.060302734,0.0053710938,-0.007457733,-0.029541016,-0.013381958,0.00023138523,-0.027053833,0.0041007996,0.017028809,-0.026321411,0.008911133,-0.01802063,-0.008079529,0.0051078796,0.0025424957,0.005344391,0.018585205,-0.030822754,0.010826111,0.023483276,0.022155762,0.026351929,0.008758545,0.03869629,-0.029907227,-0.026351929,-0.0029258728,0.03253174,0.004688263,-0.00051164627,0.03967285,0.019821167,0.04522705,0.03869629,-0.010467529,-0.008636475,0.02798462,-0.008163452,-0.0049972534,0.044921875,0.03540039,0.01423645,0.036193848,0.033325195,0.023330688,-0.04397583,0.017547607,0.0047454834,0.009681702,-0.013580322,-0.020217896,0.007896423,0.0011615753,0.023727417,-0.011772156,-0.00018775463,0.01675415,0.048431396,-0.008338928,-0.008407593,0.00047326088,-0.004524231,0.0062561035,-0.0051994324,0.020828247,-0.03793335,0.0121536255,0.02041626,0.024627686,-0.021240234,0.023635864,-0.021499634,-0.034484863,-0.007205963,0.020980835,-0.019256592,0.025680542,-0.016281128,0.0051193237,-0.035003662,0.019927979,0.0045394897,0.0038833618,0.0034751892,0.0054512024,0.011169434,0.006000519,0.042938232,0.01398468,-0.005077362,0.0042037964,-0.00381279,0.008644104,0.04574585,-0.004421234,0.018447876,-0.012359619,0.010612488,0.009277344,-0.024597168,-0.029190063,0.016799927,-0.012001038,-0.017623901,-0.0041160583,0.040222168,0.004840851,0.04837036,-0.015701294,-0.008148193,0.028289795,0.015274048,0.017578125,-0.026901245,0.010978699,0.028823853,-0.016647339,0.037109375,0.045043945,0.0015687943,0.022033691,0.010414124,0.011886597,-0.017456055,-0.021484375,0.013214111,-0.035308838,0.016113281,0.00642395,0.02508545,-0.031555176,-0.037506104,0.016235352,-0.019012451,-0.03567505,-0.033081055,0.0138168335,-0.0090408325,0.014129639,0.038330078,0.03366089,-0.033111572,0.06137085,-0.005214691,0.055480957,0.0073165894,0.011932373,0.04168701,0.038208008,0.022384644,0.0052337646,0.03201294,-0.02633667,-0.0030460358,0.035125732,0.0063667297,0.018585205,0.0049972534,-0.014953613,0.043884277,-0.008125305,0.03314209,-0.022277832,-0.0040626526,0.0042495728,-0.008331299,-0.005748749,0.0004506111,0.00009280443,0.023849487,0.044281006,-0.043701172,-0.028396606,-0.031829834,0.0008535385,0.024108887,-0.019714355,0.020874023,0.01574707,-0.00983429,0.009117126,-0.0049972534,-0.018875122,0.03564453,0.024627686,-0.032196045,-0.008071899,0.004131317,0.020339966,-0.003211975,0.025268555,0.028015137,0.0065574646,-0.0006480217,0.05505371,-0.0029506683,0.035125732,0.00034189224,0.036499023,0.035247803,-0.014472961,-0.026733398,-0.0051345825,0.016174316,0.000289917,0.009056091,0.04171753,0.0020961761,-0.008094788,-0.0057296753,-0.002910614,-0.004016876,0.015945435,-0.012039185,-0.011451721,0.0045814514,-0.012466431,0.009628296,-0.0003528595,0.0044288635,-0.004634857,0.010971069,-0.009880066,0.013656616,0.019622803,0.039245605,-0.046203613,0.004470825,0.009719849,-0.016067505,-0.02671814,-0.021270752,0.007785797,-0.033935547,0.023498535,0.013954163,0.025909424,-0.0037021637,-0.030441284,0.020263672,0.038482666,0.011268616,0.03189087,0.009284973,-0.015686035,0.008529663,-0.014381409,-0.0049095154,-0.011947632,0.0038757324,-0.006587982,0.022583008,-0.016784668,-0.02003479,0.034210205,0.0016803741,0.009727478,0.0031490326,0.015930176,0.041809082,-0.0023937225,-0.009162903,-0.014892578,-0.00137043,-0.0040016174,-0.015380859,-0.012382507,0.024963379,0.048828125,-0.01020813,-0.0011253357,0.01939392,0.019302368,0.0345459,0.02999878,0.02709961,0.04119873,0.032928467,-0.010910034,-0.001036644,0.020355225,-0.010437012,-0.037750244,0.020431519,-0.024841309,-0.027404785,0.013320923,0.0015134811,-0.0045166016,-0.023895264,-0.023040771,-0.016540527,-0.010124207,-0.0056991577,-0.0061073303,0.011451721,-0.036224365,-0.011604309,-0.011520386,-0.013168335,-0.024963379,-0.012062073,-0.014205933,-0.013618469,-0.05545044,0.0027542114,-0.022476196,-0.005126953,-0.015541077,0.0077781677,-0.012580872,0.018295288,-0.009971619,-0.011413574,-0.008834839,0.04055786,-0.00022947788,0.004550934,0.008422852,-0.008911133,-0.016525269,-0.01374054,-0.0034103394,-0.022750854,0.046569824,-0.021438599,0.037963867,-0.0067481995,-0.02911377,0.012588501,-0.018615723,-0.024154663,0.015686035,-0.027938843,-0.026062012,0.024429321,0.02305603,0.001616478,0.01146698,0.059173584,-0.0149002075,-0.028396606,0.017425537,0.038269043,0.014076233,0.0385437,-0.008132935,0.01247406,-0.018035889,0.006099701,-0.014823914,-0.0029830933,-0.011131287,0.01209259,0.0087509155,0.024246216,0.013969421,-0.022140503,-0.009292603,0.035247803,0.022827148,-0.016601562,0.05203247,0.016281128,0.00077962875,-0.009552002,0.005428314,-0.0031719208,0.044433594,0.01763916,0.030792236,-0.033325195,0.010223389,-0.025054932,0.013160706,0.013313293,-0.016571045,-0.019989014,-0.011634827,-0.013076782,0.005290985,-0.014183044,0.018035889,-0.015571594,0.0259552,-0.0060539246,-0.03982544,-0.009841919,0.017547607,0.010551453,-0.0006790161,-0.0047721863,0.002817154,0.02281189,-0.0132369995,0.020202637,-0.05758667,-0.0340271,-0.009780884,-0.017364502,0.019378662,-0.00040769577,-0.008972168,0.005252838,-0.0020275116,0.011070251,-0.0047416687,0.029190063,-0.015052795,0.007156372,0.011306763,0.030578613,-0.014732361,0.016815186,-0.012207031,-0.0060043335,0.02218628,-0.0038700104,0.013969421,0.01638794,0.04031372,0.006500244,0.011657715,0.025466919,-0.0049552917,0.0063972473,-0.013435364,-0.012809753,0.0036582947,-0.0065841675,0.017562866,-0.014579773,-0.033111572,0.009124756,-0.01574707,-0.03567505,0.009750366,0.005962372,0.039123535,-0.016845703,0.04562378,-0.018798828,-0.012748718,-0.021987915,0.017288208,-0.008865356,0.013000488,0.029220581,-0.0022411346,0.003408432,-0.0022029877,-0.0008597374,-0.004989624,0.005962372,0.0032844543,-0.0019893646,0.0009975433,-0.0025367737,0.006626129,0.04156494,0.0072364807,-0.0059509277,0.025283813,0.014289856,0.027862549,0.0021133423,0.01134491,0.0033874512,-0.026290894,0.002954483,-0.0005927086,-0.0003414154,0.0044784546,0.00699234,0.005264282,-0.03375244,0.009307861,-0.0017576218,0.052124023,-0.017364502,0.018371582,-0.019180298,0.0146484375,-0.02796936,0.018341064,-0.0423584,0.0024986267,0.03164673,-0.012619019,0.024993896,0.016189575,-0.022567749,0.030014038,0.026672363,0.0021762848,-0.018371582,-0.02041626,0.001832962,0.018966675,-0.0041275024,0.00447464,-0.04019165,-0.013305664,-0.0028362274,0.0062408447,-0.0074386597,-0.012710571,0.012680054,0.017410278,-0.0032749176,-0.013580322,0.03994751,-0.02748108,-0.011558533,-0.0024051666,0.015686035,0.019165039,0.035095215,-0.021759033,0.039794922,0.004261017,-0.013496399,0.06137085,-0.029052734,0.006767273,-0.025161743,-0.0027103424,-0.028686523,-0.014579773,0.0020599365,-0.011169434],"createdAt":"2026-04-18T18:55:39.668Z","updatedAt":"2026-04-25T13:03:04.218Z","lastSeenAt":"2026-04-25T13:03:04.218Z","tsv":"'/api':168 '/api/v1/stripe/invoices/152':46 '/docs':167 '/pricing':169 '/readme':171 '0.02':75,138 '000':80 '0x8335':68 '152':57 '20':79 '2913':69 '402':207 '6':84 'Base network API' 'USDC micropayment API' 'accept':88 'access':36 'actual':212 'advertis':98 'ai/ml':109 'analysi':112 'analyt':108 'api':35,105,143 'application/json':93 'avail':198 'base':8,22,63,81,161 'base-network' 'behavior':213 'behind':37,214 'broader':95 'call':12,26 'captur':209 'challeng':41,208 'classif':114 'commit':151 'confirm':205 'connect':177 'contract':67 'convers':131 'cost':73 'crawl':201 'crypto payment endpoint' 'data':107 'decim':85 'detail':184 'document':162,193 'embed':115 'endpoint':6,20,30,87,134,203 'entir':155 'estim':125 'exampl':197 'exchang':120 'extrem':164 'feed':119 'financ':116 'gas':124 'gate':3,17,104 'generat':132 'geocod':129 'handl':154 'http':89 'infer':110 'infrastructur':127 'invoic':5,19,54,56 'json-response' 'key':144 'limit':147 'list':136 'live':206 'lowpaymentfee' 'lowpaymentfee.com':32,96 'maximum':72 'minimum':150 'network':64 'no-api-key' 'openapi':188 'page':172 'path':45 'pay':9,23 'pay-per-call API' 'payment':40,58,152 'paywal':216 'per':11,25,77,139 'per-cal':10,24 'per-call-pricing' 'platform':97 'post':90 'premium':34 'price':118 'process':51 'prompt':179 'protocol':159 'provid':33 'quot':123 'rate':121,146 'record':55 'render':174 'request':78,140 'request/response':191 'resourc':44 'return':49,92 'schema':192 'sentiment':111 'settl':60 'span':106 'spars':165 'spec':189 'specif':43 'stripe':4,18,53 'stripe invoice API' 'stripe-invoice' 'suggest':47 'suit':100 'summar':113 'technic':183 'token':122 'unit':82 'unknown':218 'usag':196 'usdc':14,28,66,76 'usdc-settlement' 'use':65 'util':128 'valid':130 'via':156 'wallet':178 'web3':117 'x402':2,16,39,103,158 'x402 paid API' 'x402-gated':1,15,102 'x402-payment'","prices":[{"id":"e5cbba0b-45b7-4791-8203-cefe980a1701","listingId":"d01e5826-1d01-404d-9020-965120d531fc","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/stripe/invoices/152","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:39.668Z"}],"sources":[{"listingId":"d01e5826-1d01-404d-9020-965120d531fc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/152","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:39.668Z","lastSeenAt":"2026-04-25T13:03:04.218Z"}],"details":{"listingId":"d01e5826-1d01-404d-9020-965120d531fc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/152 \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge requiring USDC on Base network, maxAmountRequired 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/152"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/152"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Available API categories include Data & Analytics, AI & ML, Finance & Web3, and Infrastructure","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only a 'Connect wallet' prompt with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving or processing a specific Stripe invoice record via a crypto-settled paywall","Demonstrating x402 payment protocol integration for per-call API monetization","Programmatic invoice access without traditional API key authentication"],"bestFor":["Developers experimenting with x402 payment protocol on Base","Agents that can settle USDC micropayments for per-call API access","Projects needing keyless, pay-as-you-go API access patterns"],"notFor":["Users needing detailed API documentation or schema guarantees before purchasing","High-volume invoice processing where $0.02/call adds up significantly","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.867Z"},"updatedAt":"2026-04-25T13:03:04.218Z"}}