{"id":"4f0ca034-6406-4193-9529-893ed8aec5fa","shortId":"hynZ6E","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, paying $0.02 per request in USDC.","tagline":"x402-gated Stripe invoice endpoint on Base, paying $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com exposes a specific Stripe invoice resource (`/api/v1/stripe/invoices/22`) behind an x402 payment wall. It is part of a broader platform that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via the x402 \"exact\" scheme to wallet `0x1A2B…85F3`, with a max amount of 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals). The asset contract `0x8335…2913` is the canonical USDC contract on Base. The response MIME type is `application/json`. No API keys or rate limits are advertised; access is granted purely through per-request micropayment.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no explanation of what data the `/stripe/invoices/22` endpoint actually returns. The endpoint path suggests it retrieves or interacts with a specific Stripe invoice (ID 22), but without documentation this is speculative. The platform's landing page lists many other endpoints but provides no detail on any of them beyond names and prices.","tags":[],"capabilities":["x402-payment","usdc-micropayment","base-network","stripe-invoice","pay-per-request","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 micropayment","USDC pay-per-call","Base network API","lowpaymentfee","invoice endpoint","crypto-gated API"],"warnings":["No documentation available — /docs, /api, /pricing, and /README pages all show only 'Connect wallet' with no content","No OpenAPI or request/response schema provided for this endpoint","The endpoint path references a hardcoded invoice ID (22); unclear if this is a demo or production resource","The broader platform lists many endpoints but none have documented schemas or examples"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/22","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/22","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on what the endpoint accepts or returns. No OpenAPI spec, no examples, no request/response schema. The docs pages are all empty 'Connect wallet' stubs. The specific purpose of '/stripe/invoices/22' is unclear.","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":"2026-04-19T10:20:52.586Z","embedding":[-0.0256958,-0.014450073,0.0077285767,-0.00818634,-0.001250267,-0.016281128,-0.021530151,0.010787964,0.037902832,-0.0770874,0.029067993,-0.034973145,-0.048828125,-0.044647217,-0.016983032,0.02230835,-0.022735596,0.022903442,-0.05255127,0.037628174,0.047821045,-0.016799927,-0.015365601,0.022323608,-0.015716553,-0.017349243,-0.012939453,-0.030838013,-0.012748718,-0.018539429,0.035858154,-0.02279663,0.00059890747,-0.0023021698,0.007160187,0.002357483,0.017089844,0.040924072,0.008361816,-0.005420685,-0.014091492,-0.056152344,0.010025024,-0.008140564,-0.00844574,-0.006011963,0.022399902,-0.000767231,-0.0005841255,0.0079574585,-0.036987305,-0.014099121,0.0060920715,-0.0073432922,0.008590698,0.014884949,0.017059326,-0.0026073456,0.016204834,0.022323608,0.0211792,-0.06976318,-0.010810852,-0.009010315,0.00390625,0.069885254,-0.015037537,0.064575195,0.00566864,0.058532715,0.009498596,0.059539795,0.02659607,0.020904541,-0.011268616,-0.035949707,0.0098724365,0.044311523,-0.014717102,-0.0017061234,-0.016494751,-0.029083252,-0.08734131,-0.025543213,-0.020492554,-0.06512451,-0.030593872,-0.014411926,-0.033111572,0.03353882,-0.10424805,-0.017532349,-0.0036525726,-0.0039024353,0.001991272,-0.01576233,-0.045013428,-0.0042686462,-0.0065193176,0.007003784,0.010116577,-0.026550293,0.007091522,-0.0011510849,0.039916992,0.029067993,0.048614502,0.028274536,-0.016311646,-0.004432678,-0.0368042,0.024124146,0.008804321,-0.036224365,0.019363403,0.005493164,-0.018997192,0.028717041,-0.012763977,0.009651184,-0.06317139,0.050567627,-0.027008057,0.008850098,0.015838623,-0.040740967,-0.025024414,-0.0053367615,-0.058380127,-0.011566162,0.003873825,0.015235901,0.0038890839,-0.03274536,-0.02583313,0.010284424,-0.0113220215,-0.018066406,-0.050872803,-0.003955841,0.036834717,-0.027053833,0.033050537,0.025421143,-0.08331299,-0.017349243,-0.045288086,0.016906738,-0.04296875,0.00095129013,0.023590088,0.026443481,0.0019817352,-0.012763977,-0.036590576,-0.02128601,-0.010276794,0.014572144,0.009147644,0.025817871,-0.016860962,0.01789856,0.049102783,0.032043457,0.012611389,0.041809082,-0.010940552,-0.074401855,-0.06616211,-0.014533997,-0.00029611588,-0.020401001,-0.027160645,-0.00039076805,-0.025421143,-0.050933838,-0.026367188,-0.017578125,0.018463135,-0.062042236,-0.01033783,-0.023742676,-0.0028591156,-0.019256592,-0.06402588,-0.01574707,-0.028778076,0.038970947,0.027648926,0.044128418,0.021850586,0.004924774,0.050323486,0.03652954,-0.010627747,-0.04058838,0.037719727,-0.020904541,0.028381348,-0.0051994324,0.012321472,-0.02281189,0.024993896,0.057434082,0.005607605,-0.017227173,-0.019958496,-0.027389526,-0.030517578,-0.0020618439,0.008338928,0.01096344,-0.018539429,-0.0018196106,-0.036621094,-0.015533447,-0.010978699,0.008285522,0.038970947,0.041015625,0.01134491,0.016723633,0.0075569153,0.019927979,-0.020645142,0.053863525,0.025100708,0.02394104,-0.010482788,-0.026641846,0.023605347,0.018417358,-0.00894165,-0.0046920776,-0.019042969,0.021560669,-0.031280518,-0.018585205,-0.0076560974,-0.016845703,-0.019180298,-0.029006958,0.0077667236,0.0060920715,0.025619507,-0.004627228,-0.04525757,-0.0657959,0.039520264,0.04940796,0.020263672,0.0124053955,-0.02960205,-0.026855469,-0.028930664,-0.07562256,0.039733887,0.057495117,-0.00983429,-0.0016565323,0.037628174,-0.0231781,-0.061035156,0.000023066998,-0.015106201,-0.023620605,-0.019607544,0.017532349,-0.044036865,-0.0066223145,0.006965637,0.031021118,0.057861328,-0.021057129,-0.03778076,-0.029296875,-0.00274086,0.015991211,-0.03152466,0.017410278,0.0039100647,0.014846802,0.015457153,0.024856567,0.0028839111,0.023513794,0.008102417,-0.033111572,0.010787964,-0.016281128,-0.022109985,0.03149414,0.00541687,-0.04071045,0.011405945,-0.02571106,0.0435791,-0.0491333,0.01977539,-0.015388489,0.026947021,0.03302002,0.0064964294,-0.031463623,0.0023880005,0.029006958,0.021865845,0.0814209,0.013710022,0.022140503,-0.022872925,0.04776001,-0.025527954,-0.010070801,0.027786255,0.01751709,0.04598999,0.011207581,-0.05166626,-0.04788208,0.018112183,-0.012336731,0.038757324,-0.020736694,0.05090332,-0.013671875,0.0135650635,-0.020904541,-0.01210022,-0.034210205,0.01424408,-0.017959595,-0.0033721924,-0.01689148,-0.031066895,0.0008611679,-0.0030956268,0.026657104,0.0059814453,0.056762695,-0.0029277802,-0.030441284,-0.021072388,-0.037475586,-0.025482178,-0.01486969,0.02859497,0.0014677048,0.04055786,0.037841797,-0.057250977,0.003955841,0.0063591003,-0.0014228821,0.014373779,0.010070801,-0.0009794235,-0.07110596,-0.029083252,-0.022369385,-0.050811768,0.029006958,-0.021133423,0.018554688,0.053894043,0.008872986,-0.02178955,-0.031036377,0.0262146,-0.043273926,0.011009216,0.021057129,-0.019454956,-0.03527832,0.011116028,0.012260437,0.0048065186,0.042144775,0.014717102,0.019165039,0.06915283,0.034484863,-0.0032577515,0.0005378723,0.0052719116,0.029586792,0.004562378,-0.0158844,-0.022949219,0.0033569336,0.023773193,-0.02494812,-0.035095215,-0.06036377,0.045196533,0.020874023,0.055511475,0.0029010773,0.0012454987,0.044403076,0.016937256,-0.009933472,-0.046203613,-0.03189087,-0.060516357,-0.026824951,0.024719238,-0.013450623,-0.0017671585,-0.031143188,0.0014657974,-0.0032310486,0.00056886673,-0.0368042,0.034179688,-0.011100769,0.004470825,0.01676941,0.018692017,0.08062744,0.06738281,-0.039855957,0.007381439,-0.0011262894,-0.02293396,0.021438599,0.027862549,0.0058898926,0.003314972,-0.050628662,-0.015419006,0.02420044,-0.013824463,-0.070129395,-0.008377075,-0.0026798248,0.02659607,0.026687622,0.01626587,-0.04550171,-0.003074646,-0.026260376,-0.04397583,0.01966858,-0.059265137,0.027755737,0.033325195,-0.03930664,0.030181885,-0.008102417,0.0107421875,-0.0032806396,0.01637268,-0.004070282,0.020263672,-0.037353516,0.021972656,0.014274597,0.01576233,0.013206482,0.048950195,0.024749756,-0.0062713623,0.038085938,0.000682354,-0.015609741,-0.03967285,0.0067825317,-0.015403748,0.02130127,0.029846191,-0.039611816,0.0044784546,-0.009254456,-0.041168213,-0.032592773,0.014633179,0.00072336197,-0.015701294,0.019454956,-0.026657104,-0.009101868,-0.053741455,-0.015182495,0.0061454773,0.06414795,-0.0049362183,-0.012832642,-0.06817627,-0.0068473816,0.024917603,0.0026168823,0.017303467,-0.014503479,0.00037384033,-0.024856567,-0.022064209,-0.018600464,-0.031707764,0.028457642,-0.00233078,-0.021835327,0.042999268,0.029373169,0.036315918,0.021270752,-0.0013341904,0.013519287,-0.017120361,-0.0056915283,-0.02508545,0.033355713,0.009475708,-0.027633667,-0.04788208,0.03829956,-0.0073242188,0.048583984,-0.025161743,-0.010246277,-0.0027065277,0.0053977966,0.01663208,-0.030029297,0.0073051453,0.018295288,-0.047912598,-0.058746338,0.0087890625,0.0027885437,0.02281189,0.00070619583,0.01864624,0.030548096,-0.02645874,0.008102417,0.013381958,-0.014373779,-0.0085372925,-0.009292603,-0.028366089,-0.004421234,-0.0031280518,-0.0104522705,0.010307312,0.0060424805,0.008956909,-0.0019388199,-0.02468872,0.035705566,0.0074157715,0.014465332,0.030181885,-0.0017776489,0.015090942,0.032318115,0.0025787354,-0.045806885,0.036987305,0.025543213,-0.003967285,-0.015144348,0.021713257,0.018676758,-0.0066719055,-0.0020694733,-0.008621216,-0.0022277832,-0.0019044876,-0.0008559227,0.010185242,0.032562256,0.011550903,-0.0413208,0.019836426,0.008522034,-0.022415161,-0.02748108,0.017150879,0.022750854,-0.04296875,0.008720398,0.032806396,0.038085938,-0.025100708,0.015075684,-0.0063667297,0.032806396,0.030761719,-0.0155181885,0.0020523071,0.017608643,-0.0005888939,0.012123108,0.012580872,-0.031402588,0.0040740967,0.009170532,0.027008057,0.019241333,-0.0043182373,-0.009521484,-0.024139404,-0.006591797,-0.004611969,-0.022247314,0.011871338,0.02041626,0.027038574,-0.017868042,0.01940918,0.028823853,-0.016220093,-0.0236969,0.0025482178,0.01939392,-0.02217102,-0.004047394,0.0126953125,0.0040283203,0.039093018,-0.061706543,0.005859375,0.0035572052,0.0016593933,-0.0146865845,-0.048217773,-0.033416748,-0.02532959,0.047332764,-0.016296387,0.003168106,0.023834229,0.008323669,0.0015029907,-0.0032100677,0.011764526,-0.00027537346,-0.002609253,-0.04800415,-0.01663208,-0.012008667,0.014778137,-0.034240723,0.017074585,-0.021499634,-0.010925293,0.029510498,-0.025161743,0.009033203,-0.009033203,-0.008842468,0.022384644,-0.0082092285,0.01689148,0.005832672,-0.030731201,-0.025863647,0.008560181,0.033233643,-0.011497498,0.016937256,-0.016098022,0.0012741089,-0.017288208,-0.008644104,0.016540527,0.03842163,0.010673523,0.017440796,-0.031829834,0.04724121,-0.028961182,0.010932922,-0.01638794,0.004119873,-0.027130127,-0.024368286,-0.024993896,0.03942871,-0.0010175705,0.008102417,-0.0027580261,-0.051208496,-0.03265381,-0.05166626,0.012451172,0.020462036,0.041656494,-0.03756714,0.004020691,-0.004180908,0.013374329,-0.011138916,-0.0071105957,-0.0146484375,0.014503479,0.03652954,0.017745972,-0.026367188,-0.020126343,-0.03503418,-0.00090265274,-0.048706055,-0.054901123,-0.01398468,0.03353882,0.001991272,-0.0072669983,-0.018096924,-0.021331787,-0.010177612,-0.035583496,0.015312195,-0.01260376,0.014099121,0.006275177,-0.018157959,-0.003124237,0.0033626556,-0.0022907257,0.012207031,-0.012840271,-0.0031604767,-0.018936157,-0.0076446533,0.012260437,0.005142212,0.028076172,-0.03326416,-0.0043563843,-0.030471802,-0.044708252,-0.0032730103,-0.026977539,0.012084961,-0.0066108704,0.017349243,-0.0463562,-0.008483887,-0.028518677,-0.005870819,0.0065345764,0.016082764,0.0059127808,-0.011299133,-0.0011415482,-0.008110046,-0.03665161,-0.033294678,-0.0038223267,0.0103302,0.012809753,0.021911621,0.045928955,-0.0033855438,-0.0051345825,-0.013763428,0.021438599,0.03665161,-0.01878357,0.014831543,0.00015211105,0.0043182373,-0.019119263,-0.0039978027,-0.03237915,0.031829834,0.06451416,0.018432617,0.00059604645,-0.010070801,-0.0134887695,0.013656616,0.019821167,-0.024978638,0.0124053955,-0.04071045,0.026489258,-0.025512695,0.0030097961,0.018829346,0.031707764,-0.016616821,-0.0501709,-0.010635376,0.0025901794,-0.014137268,-0.064941406,-0.022445679,-0.071899414,0.007965088,-0.019332886,-0.027420044,-0.01737976,0.005722046,-0.013763428,-0.090026855,0.0070495605,0.04586792,0.02571106,0.0256958,-0.022567749,0.03152466,0.027053833,-0.019012451,-0.00982666,0.034973145,-0.031799316,-0.022140503,-0.017669678,0.051208496,-0.0057144165,-0.035003662,0.003107071,-0.013320923,0.024810791,-0.010597229,0.011169434,-0.020492554,0.014465332,0.00031876564,-0.0070762634,-0.0066070557,-0.024169922,0.056396484,-0.07458496,0.020202637,-0.0061950684,0.0074882507,-0.00005018711,0.038024902,0.02659607,-0.037231445,0.00046753883,0.005844116,0.013244629,0.044677734,-0.016906738,0.032409668,0.016067505,0.005405426,-0.0048179626,-0.012573242,0.0014047623,-0.057037354,-0.03753662,0.03439331,0.0043792725,-0.008026123,-0.015014648,-0.006965637,0.009315491,-0.0012321472,0.0006995201,-0.021774292,-0.0049972534,-0.017196655,0.021774292,0.008674622,0.030151367,-0.00033259392,0.03149414,0.03829956,0.03491211,-0.0060806274,-0.015220642,0.0024909973,0.03640747,0.015220642,-0.00983429,0.030593872,0.0058898926,0.008148193,0.017196655,0.0027503967,-0.017929077,-0.026153564,0.004146576,-0.013786316,0.0060806274,-0.02229309,0.017822266,0.0019931793,0.006084442,-0.0011739731,-0.00881958,0.032714844,-0.020812988,-0.026565552,-0.012199402,-0.0026474,0.01763916,0.005821228,-0.014152527,0.026535034,-0.013244629,0.05529785,0.0053977966,-0.009880066,0.038970947,0.03366089,0.026504517,-0.018325806,0.012641907,-0.013824463,-0.0053977966,0.01247406,-0.02319336,0.016555786,0.050628662,-0.021377563,0.03994751,-0.0134887695,0.025619507,-0.003068924,0.017456055,-0.00440979,-0.009437561,-0.02519226,0.056549072,-0.034118652,0.03591919,0.027191162,-0.0020427704,-0.013450623,-0.014320374,-0.036102295,0.037597656,0.027160645,0.0029659271,0.022720337,-0.0022258759,0.024749756,-0.029510498,-0.023986816,-0.02255249,-0.025009155,-0.03173828,-0.000035703182,0.00043821335,0.012817383,0.016708374,-0.00983429,-0.0029907227,-0.029266357,0.033111572,-0.00598526,0.012184143,-0.023620605,-0.033813477,-0.0055770874,-0.023330688,-0.025512695,0.006046295,0.008224487,0.033233643,0.03643799,-0.0024471283,0.021118164,-0.0016584396,-0.026535034,-0.015335083,-0.02796936,0.0046653748,-0.030731201,-0.008590698,-0.023101807,0.04055786,0.05886841,0.034179688,0.041259766,0.032440186,0.04449463,-0.0075912476,0.043762207,-0.01939392,0.0013990402,-0.035217285,0.022125244,-0.0066452026,0.026504517,-0.025268555,-0.0009660721,0.030670166,0.031982422,-0.0020256042,0.01499939,0.062927246,0.002002716,-0.023010254,0.053894043,-0.012031555,-0.0050964355,-0.027450562,-0.016113281,0.06329346,0.00819397,0.03665161,0.033599854,0.005859375,-0.012145996,0.00869751,-0.020309448,-0.00548172,0.0501709,0.0028457642,-0.0012626648,-0.026138306,-0.0030612946,0.0061187744,-0.02357483,0.0020599365,0.022613525,-0.018814087,0.001405716,-0.016204834,-0.003917694,-0.005756378,-0.0033016205,0.0031738281,0.014801025,-0.030181885,0.0052108765,0.018066406,0.008384705,0.018814087,0.012107849,0.04324341,-0.027038574,-0.032592773,-0.010322571,0.034210205,0.009216309,-0.0005698204,0.038238525,0.025253296,0.03253174,0.03845215,-0.010719299,-0.00630188,0.028884888,0.001745224,-0.0013017654,0.040771484,0.033691406,0.01197052,0.039154053,0.024871826,0.027999878,-0.042541504,0.016540527,0.0023784637,0.029663086,-0.014450073,-0.014518738,0.008300781,0.010215759,0.02659607,-0.011741638,-0.005760193,0.009521484,0.035125732,-0.012901306,-0.0069732666,-0.003019333,0.0060272217,-0.0047721863,-0.002773285,0.0146484375,-0.02859497,0.013557434,0.015380859,0.026824951,-0.020690918,0.03652954,-0.008544922,-0.031280518,-0.0065193176,0.021148682,-0.030944824,0.01977539,-0.01979065,-0.0029697418,-0.042877197,0.01600647,0.0067825317,-0.0011548996,-0.0028324127,0.0012044907,0.005821228,0.00085783005,0.04220581,0.026443481,-0.0012998581,0.011146545,-0.0078048706,-0.0004093647,0.05441284,-0.013206482,-0.001991272,-0.019836426,0.017028809,0.0135650635,-0.027450562,-0.025375366,0.017807007,-0.01713562,-0.024383545,0.0053520203,0.03878784,0.008544922,0.04925537,-0.021911621,0.0008420944,0.014183044,0.027496338,0.019454956,-0.029876709,0.010879517,0.023284912,-0.025390625,0.055847168,0.040161133,0.006362915,0.018417358,0.015640259,-0.005783081,-0.010597229,-0.024169922,0.011199951,-0.038970947,0.0032024384,0.0028247833,0.02267456,-0.031097412,-0.036499023,0.014152527,-0.019332886,-0.034332275,-0.029556274,0.02067566,-0.0076904297,0.009994507,0.040222168,0.041290283,-0.030776978,0.05984497,-0.007270813,0.06008911,0.0016155243,0.013931274,0.030319214,0.038238525,0.030776978,0.0061569214,0.024139404,-0.018508911,0.0021362305,0.021636963,0.0073051453,0.01612854,-0.0013380051,-0.021621704,0.046417236,-0.005756378,0.045196533,-0.020996094,-0.008659363,-0.0005660057,-0.0077934265,-0.012329102,-0.0039405823,-0.009788513,0.018157959,0.04840088,-0.04248047,-0.023162842,-0.028335571,-0.006290436,0.033233643,-0.019104004,0.019760132,0.01322937,-0.01727295,0.010185242,-0.010955811,-0.026321411,0.018234253,0.029403687,-0.03366089,-0.018249512,0.012672424,0.019332886,-0.016204834,0.041168213,0.025405884,-0.003921509,0.0019369125,0.051818848,-0.0016336441,0.037017822,-0.016342163,0.034729004,0.040405273,-0.0077285767,-0.012145996,0.0028266907,0.012413025,-0.008125305,0.015808105,0.044311523,0.0099487305,-0.008293152,0.0021762848,0.004787445,0.0070495605,0.0048446655,-0.018798828,-0.0053215027,-0.0058250427,-0.007648468,0.014335632,0.0072135925,0.00075531006,-0.0027866364,-0.0025978088,-0.020202637,0.009101868,0.036132812,0.047607422,-0.04751587,0.0070495605,0.014060974,-0.015037537,-0.030776978,-0.0046043396,0.023132324,-0.04058838,0.030700684,0.014724731,0.026428223,-0.0038318634,-0.026504517,0.013694763,0.04586792,0.017623901,0.046691895,0.0061035156,-0.008956909,0.008544922,-0.0006685257,0.011474609,-0.0033340454,0.0005636215,-0.01576233,0.02571106,-0.014129639,-0.01398468,0.030960083,0.0028953552,0.011245728,0.0059776306,0.01802063,0.040802002,-0.010696411,0.00053977966,-0.008659363,-0.0034694672,-0.011581421,-0.0031642914,-0.012062073,0.014945984,0.034820557,-0.009391785,0.0038337708,0.023239136,0.020248413,0.033111572,0.02659607,0.02079773,0.039093018,0.017440796,-0.014167786,-0.007434845,0.017944336,-0.005695343,-0.03326416,0.017333984,-0.034576416,-0.029296875,0.02520752,0.016555786,-0.0035152435,-0.030807495,-0.029556274,-0.014831543,-0.012611389,-0.006855011,0.0031375885,0.0047950745,-0.027893066,-0.0028362274,-0.009918213,-0.009162903,-0.029327393,-0.0135650635,-0.01889038,-0.022964478,-0.050720215,-0.0061073303,-0.009399414,0.0076293945,-0.022064209,0.016830444,-0.0154800415,0.010681152,-0.018356323,-0.013870239,-0.0008034706,0.034484863,0.0056915283,0.0002541542,0.009918213,-0.00793457,-0.015975952,-0.004459381,-0.015426636,-0.015068054,0.049804688,-0.011497498,0.043060303,-0.0009717941,-0.016967773,0.0065345764,-0.016723633,-0.02293396,0.013313293,-0.016342163,-0.035064697,0.028625488,0.023666382,0.00083589554,0.0031528473,0.05319214,-0.004634857,-0.015899658,0.013053894,0.032440186,0.01083374,0.030670166,0.001162529,0.0030174255,-0.038330078,0.008483887,-0.014801025,-0.004573822,-0.018249512,0.0085372925,0.003522873,0.037475586,0.016342163,-0.0035419464,-0.013313293,0.03262329,0.025558472,-0.008666992,0.041259766,0.017684937,0.01398468,-0.020736694,0.00289917,0.008995056,0.03503418,0.013450623,0.024719238,-0.030319214,0.019042969,-0.020492554,0.00932312,0.0018148422,-0.015548706,-0.02508545,-0.0011167526,-0.022918701,0.005203247,-0.02079773,0.010032654,-0.0039749146,0.024230957,0.007335663,-0.032073975,-0.0079956055,0.018203735,0.008895874,-0.007019043,-0.0047416687,0.008018494,0.020889282,-0.022384644,0.016464233,-0.047088623,-0.0395813,-0.013908386,-0.016738892,0.03552246,-0.008628845,-0.03111267,0.0008049011,0.001367569,0.0121536255,-0.008094788,0.033477783,-0.0009899139,0.0027179718,0.023773193,0.026748657,-0.0075912476,0.013206482,-0.0077781677,-0.013069153,0.029434204,0.003643036,0.021148682,0.010040283,0.046783447,0.011528015,0.013969421,0.016021729,-0.009529114,0.012260437,-0.014404297,-0.021224976,-0.003753662,-0.005870819,0.013824463,-0.011161804,-0.035949707,-0.005542755,-0.015556335,-0.024734497,0.018814087,0.0011072159,0.03640747,-0.01838684,0.041656494,-0.03050232,-0.019821167,-0.010810852,0.0008420944,-0.015205383,0.017227173,0.022140503,0.0014953613,0.0036029816,-0.00881958,-0.0046539307,-0.017471313,0.01374054,-0.0006365776,-0.0066986084,0.0065994263,-0.0009050369,0.014907837,0.0385437,0.004917145,-0.003900528,0.019592285,0.0118255615,0.019241333,0.0024204254,0.026229858,0.0025920868,-0.016235352,0.0053710938,0.009101868,-0.00793457,0.00995636,-0.0065078735,0.010192871,-0.03845215,0.0022087097,-0.017623901,0.04434204,-0.010971069,0.026657104,-0.023666382,0.025009155,-0.029922485,0.025543213,-0.039123535,0.0022659302,0.031341553,-0.010879517,0.011451721,0.01007843,-0.0262146,0.021133423,0.03302002,0.0031967163,-0.033294678,-0.010093689,0.007472992,0.012886047,-0.005996704,-0.0043182373,-0.034729004,-0.027389526,-0.00982666,0.00116539,-0.010414124,-0.011566162,0.019836426,0.018707275,0.008148193,-0.014450073,0.030960083,-0.018051147,-0.003873825,0.0061798096,0.013175964,0.02520752,0.028335571,-0.034301758,0.026123047,0.005508423,-0.020965576,0.056030273,-0.023620605,0.010292053,-0.025939941,-0.0029640198,-0.02822876,-0.018447876,-0.008392334,-0.011566162],"createdAt":"2026-04-18T18:55:49.280Z","updatedAt":"2026-04-25T10:03:27.394Z","lastSeenAt":"2026-04-25T10:03:27.394Z","tsv":"'/api':172 '/api/v1/stripe/invoices/22':39 '/docs':171 '/pricing':173 '/readme':175 '/stripe/invoices/22':203 '0.02':10,24,74,121 '000':115 '0x1a2b':107 '0x8335':130 '20':114 '22':221 '2913':131 '6':125 '85f3':108 'Base network API' 'USDC pay-per-call' 'accept':94 'access':153 'actual':205 'advertis':152 'ai/ml':64 'amount':112 'analyt':63 'api':60,146 'application/json':144 'asset':128 'base':8,22,83,116,138 'base-network' 'behind':40 'beyond':163,245 'broader':50 'call':59 'canon':134 'challeng':87 'confirm':88 'connect':181 'content':187 'contract':129,136 'crypto-gated API' 'data':62,67,201 'decim':126 'detail':240 'document':162,224 'dozen':54 'endpoint':6,20,30,90,204,208,236 'exact':103 'explan':198 'expos':33 'extrem':168 'finance/web3':66 'gate':3,17 'given':122 'grant':155 'i.e':120 'id':220 'infer':65 'interact':214 'invoic':5,19,37,219 'invoice endpoint' 'json-response' 'key':147 'land':165,231 'limit':150 'list':233 'live':92 'lowpaymentfee' 'lowpaymentfee.com':32 'made':99 'mani':234 'max':111 'micropay':161 'mime':141 'name':246 'network':84 'no-api-key' 'offer':53 'openapi':191 'page':166,176,232 'part':47 'path':209 'pay':9,23,57 'pay-per-cal':56 'pay-per-request' 'payment':43,97 'per':11,25,58,75,159 'per-request':158 'platform':51,229 'post':95 'price':72,248 'prompt':183 'provid':238 'pure':156 'rate':149 'render':178 'request':12,26,76,96,160 'request/response':194 'resourc':38 'respons':140 'retriev':212 'return':206 'schema':195 'scheme':104 'servic':70 'settl':78 'span':61 'spars':169 'spec':192 'specif':35,217 'specul':227 'stripe':4,18,36,218 'stripe invoice API' 'stripe-invoice' 'substant':186 'suggest':210 'type':142 'unit':117 'usdc':14,28,80,119,123,135 'usdc-micropayment' 'util':69 'via':100 'wall':44 'wallet':106,182 'without':223 'x402':2,16,42,86,102 'x402 micropayment' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"430861d9-c293-4048-8114-f6f96ac57ebe","listingId":"4f0ca034-6406-4193-9529-893ed8aec5fa","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/22","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:49.280Z"}],"sources":[{"listingId":"4f0ca034-6406-4193-9529-893ed8aec5fa","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/22","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:49.280Z","lastSeenAt":"2026-04-25T10:03:27.394Z"}],"details":{"listingId":"4f0ca034-6406-4193-9529-893ed8aec5fa","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/22 \\\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, maxAmountRequired 20000 USDC base units on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/22"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/22"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving or interacting with a Stripe invoice via micropayment without API key registration","Programmatic agents paying per-call to access invoice data on Base L2","Demonstrating x402 payment protocol integration with Stripe-related resources"],"bestFor":["Developers experimenting with x402 payment protocol","Agents that need keyless, pay-per-call access to invoice data","Users who prefer crypto micropayments over traditional API subscriptions"],"notFor":["Production use requiring documented request/response schemas","Bulk invoice processing where per-call fees add up","Users who need non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.422Z"},"updatedAt":"2026-04-25T10:03:27.394Z"}}