{"id":"4403f28d-a153-46f0-88b4-6836ffcf0498","shortId":"qK3fx9","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC.","tagline":"x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC.","description":"This endpoint at lowpaymentfee.com provides access to a Stripe invoice resource (invoice ID 180) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe broader lowpaymentfee.com platform advertises a suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto market data, and utility services (geocoding, validation, conversion, generation), all priced at $0.02 per request. However, this specific listing covers only the `/api/v1/stripe/invoices/180` endpoint, which appears to expose a Stripe invoice object. The exact response schema is not documented, and the crawled docs/pricing/README pages returned only a wallet-connect prompt with no additional detail.\n\nBecause there is no OpenAPI spec, no example request/response payloads, and the documentation pages are effectively empty beyond the landing page summary, the actual behavior of this endpoint is largely opaque. Callers should expect a JSON response related to a Stripe invoice but should be prepared for undocumented fields or behaviors.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","stripe-invoice","pay-per-call","no-api-key","json-response"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 paid endpoint","USDC micropayment API","Base network API","pay-per-request invoice","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available for this endpoint","Documentation pages (/docs, /api, /pricing, /README) return only a wallet-connect prompt with no content","The endpoint exposes a single Stripe invoice (ID 180) — unclear what data is returned or what POST body is expected","Response format and fields are entirely undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/180","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/180","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 no OpenAPI spec, no documented request/response schema, no examples, and all documentation pages beyond the landing page are empty wallet-connect stubs. The purpose of this specific invoice endpoint 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":"2026-04-19T10:30:53.835Z","embedding":[-0.02394104,-0.0112838745,-0.001449585,-0.005176544,0.00907135,-0.025299072,-0.028152466,0.005218506,0.04547119,-0.07196045,0.025360107,-0.045135498,-0.050628662,-0.03302002,-0.012481689,0.017578125,-0.011680603,0.030532837,-0.04663086,0.054260254,0.035125732,-0.006210327,-0.0060691833,-0.005054474,-0.015853882,-0.024993896,-0.027053833,-0.032958984,-0.007881165,-0.009666443,0.029144287,-0.02709961,-0.0020179749,-0.0073928833,-0.0060653687,-0.0079422,-0.000025689602,0.032684326,0.021774292,-0.014930725,-0.034362793,-0.047180176,0.01675415,-0.0071868896,-0.004722595,0.018661499,0.03265381,-0.0015153885,0.0034255981,0.009048462,-0.047546387,-0.020431519,0.018981934,-0.0028209686,0.019226074,0.028549194,0.0209198,-0.006450653,0.024902344,0.027359009,0.017608643,-0.088134766,-0.0064468384,-0.022415161,0.011604309,0.0670166,-0.02619934,0.06506348,-0.004245758,0.055603027,0.009124756,0.06732178,0.020767212,0.014671326,0.009307861,-0.027908325,0.029190063,0.0513916,-0.01939392,-0.009017944,-0.009727478,-0.030426025,-0.08111572,-0.0067634583,-0.0062294006,-0.03967285,-0.026000977,-0.03213501,-0.021530151,0.0335083,-0.09918213,-0.033081055,0.003528595,0.0036296844,0.013832092,-0.016555786,-0.03579712,-0.00447464,0.0028190613,0.003168106,0.018661499,-0.0071487427,0.020950317,0.010192871,0.031219482,0.03765869,0.03955078,0.029296875,-0.010124207,0.0074653625,-0.032318115,0.02633667,-0.0043296814,-0.04638672,0.010719299,0.007888794,-0.031204224,0.033691406,-0.022018433,0.007549286,-0.054779053,0.038146973,-0.016738892,0.023040771,0.02859497,-0.04522705,-0.026611328,-0.0001872778,-0.038635254,-0.008651733,0.006652832,0.010429382,-0.011131287,-0.03778076,-0.041625977,0.023605347,0.0022296906,-0.018127441,-0.045043945,-0.02444458,0.048461914,-0.0118255615,0.021133423,0.015960693,-0.088256836,-0.011909485,-0.02949524,-0.0030727386,-0.04046631,0.004463196,0.019638062,0.03274536,0.003490448,-0.008781433,-0.03491211,-0.01626587,0.007965088,0.008621216,0.0113220215,0.03878784,-0.030426025,0.021484375,0.066589355,0.013999939,-0.0009531975,0.031021118,-0.013420105,-0.076660156,-0.06604004,-0.0014543533,-0.0023097992,-0.013496399,-0.032104492,0.009498596,-0.023986816,-0.04937744,-0.016662598,-0.02519226,0.021484375,-0.058532715,-0.022964478,-0.007858276,-0.0073280334,-0.030136108,-0.0574646,-0.019424438,-0.043884277,0.045715332,0.0357666,0.05810547,0.017562866,-0.007347107,0.035186768,0.045318604,-0.0040512085,-0.033081055,0.029571533,-0.030014038,0.00818634,-0.010063171,0.02998352,-0.031982422,0.027435303,0.068725586,0.00869751,-0.021759033,-0.017303467,-0.030395508,-0.012275696,-0.014656067,0.010658264,0.020721436,-0.022155762,0.008178711,-0.04058838,-0.02079773,-0.008651733,0.0043525696,0.03729248,0.041290283,0.004989624,0.011634827,0.013374329,0.014389038,-0.030212402,0.035614014,0.018966675,0.009559631,-0.01763916,-0.0423584,0.033843994,0.020874023,-0.0033302307,-0.004611969,-0.014526367,0.012481689,-0.032989502,-0.027816772,-0.0052986145,-0.009735107,-0.029708862,-0.017608643,0.016204834,-0.0052223206,0.02178955,-0.0036258698,-0.029449463,-0.07849121,0.036834717,0.036956787,0.023361206,0.022369385,-0.0335083,-0.017822266,-0.02911377,-0.07489014,0.039611816,0.042938232,0.006565094,0.0019350052,0.05291748,-0.0065612793,-0.04562378,0.0048675537,-0.009407043,-0.023330688,-0.015457153,0.010116577,-0.050842285,0.02268982,0.0062332153,0.023483276,0.06762695,-0.018798828,-0.04788208,-0.022003174,-0.001964569,-0.00046133995,-0.014862061,0.002746582,-0.014930725,-0.00072193146,0.0055160522,0.027542114,0.002254486,0.025497437,0.0022640228,-0.033081055,0.006412506,-0.026565552,-0.022247314,0.0463562,-0.0047950745,-0.050842285,0.010910034,-0.042053223,0.042907715,-0.05456543,0.019592285,-0.022079468,0.019226074,0.037353516,0.0056152344,-0.020706177,-0.00027418137,0.034118652,0.01612854,0.064331055,0.014320374,0.0019989014,-0.018249512,0.039093018,-0.02017212,-0.012008667,0.018554688,0.015716553,0.040100098,-0.006477356,-0.059265137,-0.04699707,0.0019607544,-0.0050697327,0.02720642,-0.025344849,0.044403076,-0.0073928833,0.0079956055,-0.015151978,-0.022903442,-0.025009155,0.024932861,-0.0020198822,0.0015707016,-0.0018033981,-0.030548096,0.010070801,-0.006793976,0.014312744,0.008560181,0.04663086,0.01763916,-0.04107666,-0.022979736,-0.03756714,-0.016815186,-0.0075302124,0.026046753,0.012054443,0.051239014,0.029037476,-0.044647217,0.016906738,0.023712158,-0.017150879,0.004562378,-0.001871109,0.013267517,-0.07342529,-0.013046265,-0.02709961,-0.059295654,0.019821167,-0.033996582,0.02079773,0.046173096,0.0107040405,-0.027954102,-0.026062012,0.030273438,-0.05105591,0.025344849,0.010932922,-0.021057129,-0.031143188,0.0037975311,0.010177612,-0.0033550262,0.064575195,0.0031585693,0.016601562,0.062561035,0.019592285,0.00907135,-0.010383606,0.0004925728,0.03466797,0.0022621155,-0.0055351257,-0.015670776,0.0056915283,0.036499023,-0.016967773,-0.027801514,-0.061309814,0.043395996,0.028778076,0.05368042,0.006008148,-0.0082473755,0.049468994,0.016403198,-0.006511688,-0.02558899,-0.01727295,-0.059417725,-0.017486572,0.01335907,-0.019226074,0.021911621,-0.031677246,0.00869751,-0.0012264252,-0.004055023,-0.035064697,0.029083252,-0.0072250366,0.02432251,0.00844574,0.019256592,0.07171631,0.07348633,-0.037353516,0.015899658,0.0010251999,-0.019546509,0.029220581,0.030715942,-0.0028762817,-0.016799927,-0.056427002,-0.008018494,0.02633667,-0.020629883,-0.0725708,-0.0035037994,0.0018529892,0.035949707,0.011444092,0.02470398,-0.042236328,-0.0041275024,-0.026062012,-0.05029297,0.014823914,-0.05255127,0.010520935,0.016647339,-0.019866943,0.02746582,-0.019470215,0.012214661,0.0068969727,0.014862061,0.012046814,0.016906738,-0.031982422,0.015701294,0.011680603,0.018539429,0.013305664,0.034484863,0.013900757,0.010108948,0.023925781,-0.016113281,-0.0026779175,-0.0345459,0.014480591,-0.014503479,0.017745972,0.023910522,-0.043304443,0.015327454,0.0012655258,-0.045318604,-0.02772522,0.016693115,-0.019546509,-0.012458801,0.015174866,-0.020706177,-0.0045166016,-0.053527832,-0.017303467,0.0058174133,0.058624268,0.0064315796,-0.009963989,-0.06665039,-0.016159058,0.030059814,0.0062217712,0.020584106,-0.013999939,-0.00843811,-0.030960083,-0.036956787,-0.009010315,-0.01914978,0.020599365,0.0022449493,-0.04815674,0.033203125,0.0073051453,0.03878784,0.022003174,0.018493652,-0.0055160522,-0.02330017,0.010414124,-0.023498535,0.043060303,0.015159607,-0.03677368,-0.05331421,0.03753662,-0.013290405,0.047332764,-0.020126343,-0.021118164,-0.0044174194,0.0010499954,0.018417358,-0.026992798,0.01701355,0.020950317,-0.0385437,-0.06896973,-0.0003042221,-0.0008034706,0.023468018,0.0049209595,0.022979736,0.022750854,-0.0068130493,0.014579773,0.009941101,-0.015945435,-0.01701355,-0.0077667236,-0.034301758,-0.020980835,0.0006465912,-0.0031032562,0.0071372986,-0.005378723,0.017929077,-0.0009803772,-0.028335571,0.040405273,0.020233154,0.022857666,0.028442383,-0.0019350052,0.023498535,0.035308838,0.01335907,-0.033691406,0.04171753,0.024276733,0.00932312,-0.026489258,0.0034294128,0.02406311,-0.018478394,0.0025672913,-0.009002686,-0.00028705597,-0.015274048,0.0010757446,0.016784668,0.04031372,0.009437561,-0.0385437,0.017959595,0.0054397583,-0.011482239,-0.032440186,0.015960693,0.018554688,-0.044525146,0.012290955,0.039764404,0.034240723,-0.024276733,0.022781372,-0.0076065063,0.03982544,0.02003479,-0.00894928,0.012634277,0.019134521,-0.009529114,0.007183075,0.00894928,-0.027404785,-0.009277344,0.0030441284,0.037872314,0.027664185,-0.005672455,-0.0025482178,-0.027404785,-0.0023784637,-0.00018262863,-0.026367188,0.0236969,0.01928711,0.0154800415,-0.015151978,0.015571594,0.026916504,-0.011299133,-0.027511597,0.0050201416,0.0039978027,-0.023208618,-0.0044288635,0.020477295,0.0079193115,0.045959473,-0.0625,0.00060510635,-0.005428314,0.008049011,-0.028564453,-0.033111572,-0.030212402,-0.03086853,0.051116943,-0.02281189,0.0043144226,0.032165527,0.016189575,0.008369446,-0.02029419,0.020141602,0.006603241,-0.008880615,-0.050811768,-0.02859497,-0.01826477,0.010246277,-0.04156494,0.02720642,-0.0072250366,-0.02293396,0.028518677,-0.023864746,0.010353088,-0.0014438629,-0.014984131,0.0076789856,0.004924774,0.024429321,0.01512146,-0.032928467,-0.024551392,-0.00573349,0.03579712,-0.015731812,0.013999939,-0.0121536255,0.009963989,-0.015640259,-0.0102005005,0.015060425,0.0501709,0.009567261,0.01436615,-0.0231781,0.050994873,-0.030883789,0.0020217896,-0.01701355,0.0012321472,-0.024505615,-0.022369385,-0.0073928833,0.031036377,-0.007156372,0.009529114,-0.0023460388,-0.04537964,-0.026046753,-0.05380249,0.00365448,0.0020122528,0.04638672,-0.03753662,0.011253357,-0.0072021484,0.011131287,-0.010971069,0.0002439022,-0.009590149,-0.007633209,0.03112793,0.022232056,0.006477356,-0.035736084,-0.046539307,-0.015136719,-0.04748535,-0.055603027,-0.002735138,0.03793335,0.006134033,-0.0158844,-0.008811951,-0.011138916,-0.0014848709,-0.024856567,0.027023315,-0.005771637,0.01676941,-0.0027885437,-0.010520935,0.0066986084,0.00069761276,0.0093307495,0.019226074,0.013305664,0.0024547577,-0.009780884,-0.0072250366,-0.0011081696,-0.0038318634,0.025405884,-0.022354126,-0.008125305,-0.023498535,-0.041107178,0.00043845177,-0.023071289,0.010810852,-0.009811401,0.018341064,-0.040985107,-0.010559082,-0.026748657,-0.0026016235,0.010848999,0.017944336,0.0033454895,-0.02810669,0.013397217,-0.01222229,-0.019363403,-0.03652954,0.0032444,0.009864807,0.008529663,0.017990112,0.045806885,-0.016860962,0.000048339367,-0.012672424,0.010231018,0.035949707,-0.008911133,0.013664246,0.018661499,-0.0047836304,-0.025146484,-0.004211426,-0.04043579,0.032989502,0.05105591,0.013679504,-0.00724411,-0.025405884,-0.0119018555,0.0067100525,0.02041626,-0.012420654,0.0040626526,-0.04220581,0.01737976,-0.018585205,0.023254395,0.014877319,0.03289795,-0.009490967,-0.038116455,-0.00969696,0.0012435913,-0.017211914,-0.048706055,-0.015991211,-0.06829834,0.01360321,-0.02142334,-0.032714844,-0.008399963,0.022079468,-0.010360718,-0.076049805,0.011184692,0.033325195,0.023513794,0.047546387,-0.018554688,0.031066895,0.019744873,-0.011795044,0.008049011,0.021072388,-0.035461426,-0.019882202,-0.018951416,0.03366089,-0.00881958,-0.042907715,0.0011234283,-0.022155762,0.019714355,-0.0051994324,0.0028152466,-0.034179688,0.015838623,0.0010004044,0.0047416687,-0.005130768,-0.018325806,0.06414795,-0.06640625,0.020477295,-0.00995636,-0.0052719116,-0.0000833869,0.048706055,0.03982544,-0.033599854,0.0076522827,0.00111866,0.014762878,0.055145264,-0.02772522,0.024169922,0.018981934,0.0008149147,0.0044021606,-0.008575439,0.012130737,-0.062042236,-0.019973755,0.04043579,0.011489868,-0.0146865845,-0.026535034,-0.015365601,0.014312744,-0.008094788,0.005455017,-0.025726318,0.001420021,-0.022247314,0.015792847,-0.0048065186,0.019561768,-0.01386261,0.028152466,0.0234375,0.020385742,0.009819031,-0.025375366,0.022994995,0.0368042,0.021911621,-0.010215759,0.03353882,-0.007980347,0.017486572,0.025100708,0.0007762909,-0.013641357,-0.022277832,-0.0013332367,-0.0021400452,0.004219055,-0.018249512,0.0181427,0.0013151169,-0.002122879,-0.0034751892,-0.0046691895,0.030319214,-0.024673462,-0.022857666,-0.010604858,-0.009155273,0.032958984,-0.0020484924,-0.005531311,0.044555664,-0.019119263,0.05657959,0.01461792,0.00013196468,0.022781372,0.040649414,0.018966675,-0.016326904,0.027618408,-0.0044136047,-0.0014829636,0.008354187,-0.034240723,0.030838013,0.037078857,-0.021377563,0.04095459,0.0023956299,0.02017212,-0.0033874512,0.020462036,-0.004550934,-0.017227173,-0.01701355,0.051452637,-0.030731201,0.03729248,0.015357971,-0.004535675,-0.010093689,-0.026138306,-0.045898438,0.031433105,0.025375366,0.000579834,0.03805542,0.0014162064,0.021835327,-0.016326904,-0.01940918,-0.01914978,-0.024795532,-0.030685425,0.009971619,0.004676819,0.017929077,0.013023376,0.0064086914,-0.012832642,-0.016830444,0.037628174,-0.007381439,0.0064315796,-0.030273438,-0.033599854,-0.007972717,-0.017807007,-0.019592285,0.011413574,0.00642395,0.027511597,0.024810791,-0.00289917,0.029891968,-0.0018033981,-0.02848816,-0.008651733,-0.016189575,0.0009832382,-0.01979065,-0.01121521,-0.02571106,0.036346436,0.06628418,0.022857666,0.03466797,0.035858154,0.03451538,0.0051574707,0.039367676,-0.020889282,-0.006275177,-0.033843994,0.032165527,0.00793457,0.009788513,-0.02268982,-0.0126571655,0.025177002,0.045928955,0.0021743774,0.01675415,0.070739746,0.0046958923,-0.014480591,0.049072266,-0.0026836395,-0.020477295,-0.018859863,-0.020706177,0.06286621,0.018844604,0.041900635,0.024246216,-0.0013751984,0.002117157,-0.009307861,-0.031921387,-0.016937256,0.05102539,0.008796692,-0.0025672913,-0.04260254,-0.014480591,-0.0054473877,-0.031341553,-0.005317688,0.015151978,-0.023223877,-0.0001347065,-0.007858276,-0.008804321,0.006187439,-0.011238098,-0.0009589195,0.01928711,-0.029525757,0.009513855,0.02607727,0.02229309,0.01600647,0.009147644,0.04650879,-0.029266357,-0.029632568,-0.0062332153,0.021072388,0.0064811707,-0.0030879974,0.046875,0.015380859,0.03366089,0.042785645,-0.0018615723,0.00010305643,0.030456543,-0.019073486,0.0028076172,0.047027588,0.0385437,0.014015198,0.03262329,0.019592285,0.035095215,-0.042877197,0.022125244,0.0010061264,0.019470215,-0.004940033,-0.011260986,0.0093307495,0.008796692,0.03604126,-0.016738892,0.0025672913,0.018753052,0.05419922,-0.012359619,-0.0065841675,-0.00010043383,-0.00818634,-0.00010383129,-0.000066280365,0.016799927,-0.038024902,0.0051574707,0.022644043,0.023742676,-0.015701294,0.025177002,-0.01625061,-0.033294678,-0.0067367554,0.021560669,-0.021392822,0.02456665,-0.009674072,0.012786865,-0.042175293,0.022628784,-0.00054883957,0.017303467,0.0025501251,0.009841919,0.012397766,0.005115509,0.042541504,0.013702393,0.0020523071,0.00655365,-0.0009946823,0.012245178,0.048217773,-0.017303467,0.011138916,-0.007598877,0.007873535,0.0079956055,-0.020751953,-0.03488159,0.021743774,-0.008125305,-0.012748718,0.002439499,0.043121338,0.0069885254,0.055633545,-0.018936157,-0.006023407,0.022903442,0.025924683,0.011795044,-0.037109375,0.027618408,0.022201538,-0.014205933,0.041625977,0.04171753,0.010604858,0.014259338,0.017700195,0.0074653625,-0.014427185,-0.021469116,0.0012998581,-0.03086853,0.010238647,0.0082473755,0.027130127,-0.037841797,-0.045715332,0.017486572,-0.01838684,-0.03729248,-0.027160645,0.01838684,-0.014038086,0.019714355,0.03250122,0.0368042,-0.028900146,0.054351807,0.0066719055,0.059783936,0.006149292,0.013793945,0.03817749,0.035736084,0.025131226,0.0047302246,0.033233643,-0.022766113,-0.010505676,0.023635864,0.006008148,0.022537231,-0.0027713776,-0.012016296,0.0357666,-0.018249512,0.034057617,-0.037109375,-0.0054512024,0.011398315,-0.00365448,-0.0068130493,-0.0049057007,-0.0006184578,0.026687622,0.04058838,-0.04763794,-0.009857178,-0.035461426,-0.002313614,0.023757935,-0.023086548,0.023971558,0.02671814,-0.0118637085,0.0079193115,-0.0069770813,-0.028671265,0.017364502,0.025299072,-0.016082764,-0.014373779,0.011726379,0.023971558,0.0029258728,0.030838013,0.022033691,0.008834839,-0.004360199,0.049743652,-0.007637024,0.033325195,-0.014167786,0.035125732,0.044403076,-0.011306763,-0.01965332,-0.0053215027,0.010406494,-0.0052375793,0.015327454,0.04815674,0.003458023,-0.00086450577,-0.006275177,0.0088272095,-0.0019874573,0.0178833,-0.01260376,-0.0063705444,0.006954193,-0.006412506,0.0079193115,-0.001039505,0.008148193,-0.008934021,0.019134521,-0.012786865,0.006790161,0.016662598,0.058776855,-0.038116455,0.0045166016,0.014480591,-0.014579773,-0.0155181885,-0.01939392,0.008850098,-0.03149414,0.031341553,0.0026836395,0.03112793,0.0038166046,-0.027694702,0.013252258,0.04296875,0.010719299,0.03149414,0.015586853,-0.012763977,0.01084137,0.0066223145,-0.008422852,-0.0022964478,0.0018148422,-0.014671326,0.021942139,-0.01525116,-0.020965576,0.032806396,-0.010353088,0.019836426,0.007019043,0.020080566,0.042755127,-0.0038700104,0.00025606155,-0.011627197,-0.012130737,-0.008644104,-0.005832672,0.0019836426,0.024459839,0.039093018,-0.006324768,0.0045776367,0.030807495,0.012168884,0.03161621,0.027069092,0.02947998,0.039764404,0.03579712,-0.011207581,0.0062217712,0.02609253,-0.008483887,-0.024124146,0.018569946,-0.02482605,-0.039276123,0.014198303,0.012512207,-0.007949829,-0.01739502,-0.023971558,-0.0096206665,-0.0011854172,-0.0056991577,-0.00422287,0.006664276,-0.023635864,-0.0009899139,-0.017333984,-0.019104004,-0.036132812,-0.019744873,-0.007183075,-0.012626648,-0.056884766,0.0008831024,-0.0076065063,0.0053482056,-0.01965332,0.007911682,-0.024871826,0.016540527,-0.010147095,-0.0070533752,-0.013870239,0.045715332,0.00051259995,0.005542755,0.0040130615,-0.0003042221,-0.011138916,0.0009355545,-0.011329651,-0.013664246,0.050811768,-0.009712219,0.0368042,-0.0031871796,-0.02508545,0.006828308,-0.011634827,-0.028671265,0.019805908,-0.0061836243,-0.029754639,0.032348633,0.013809204,0.0015859604,0.014671326,0.051208496,-0.012802124,-0.018203735,0.023269653,0.038635254,0.012321472,0.034820557,-0.0047416687,0.007835388,-0.015777588,0.0019683838,-0.013282776,-0.0030174255,-0.01626587,0.002494812,0.013412476,0.035095215,0.011352539,-0.01826477,-0.029968262,0.032714844,0.033599854,-0.00920105,0.041931152,0.019927979,0.0042304993,-0.010520935,0.00015723705,-0.0007863045,0.04360962,0.01928711,0.0357666,-0.021530151,0.0069503784,-0.022766113,0.010803223,0.0027370453,-0.022476196,-0.032104492,0.0030975342,-0.013618469,0.013824463,-0.02671814,0.014183044,-0.008781433,0.022491455,-0.0051651,-0.028701782,-0.014198303,0.025177002,0.009613037,0.0016727448,-0.011932373,0.016830444,0.021743774,-0.0069236755,0.020980835,-0.047698975,-0.033447266,0.0056533813,-0.007926941,0.020019531,-0.0071487427,-0.010185242,0.005718231,-0.0047683716,0.007865906,-0.021530151,0.021392822,-0.016082764,0.009178162,0.0134887695,0.03363037,0.0030441284,0.015609741,-0.008224487,-0.0075302124,0.028625488,0.0062713623,0.020095825,0.015380859,0.052490234,0.02015686,0.012710571,0.023269653,-0.0024280548,-0.004776001,-0.012016296,-0.011833191,-0.0013599396,-0.0032596588,0.013320923,-0.020507812,-0.036315918,0.00016474724,-0.0181427,-0.025726318,0.018676758,0.0068855286,0.040985107,-0.026504517,0.046875,-0.023986816,-0.01335907,-0.027023315,0.013885498,-0.01424408,0.007335663,0.020217896,0.0011444092,0.010147095,-0.0028820038,-0.0019989014,-0.008575439,0.0043907166,0.0028247833,0.0011863708,0.0077400208,-0.0067481995,0.015991211,0.03768921,0.017120361,-0.001584053,0.01902771,0.0155181885,0.017608643,0.0001167655,0.017074585,0.00096702576,-0.016983032,0.004310608,-0.0079193115,0.006385803,0.0061912537,0.0016098022,0.0038871765,-0.028442383,0.009986877,-0.016952515,0.046722412,-0.015609741,0.018844604,-0.018508911,0.019897461,-0.024093628,0.00466156,-0.035980225,0.007987976,0.024154663,-0.03201294,0.015022278,0.013435364,-0.0061531067,0.020645142,0.026138306,-0.002122879,-0.019119263,-0.014526367,-0.0022354126,0.021881104,-0.001742363,-0.0053520203,-0.035095215,-0.026992798,0.004890442,0.0019550323,-0.0074768066,-0.00027251244,0.013153076,0.019439697,0.009017944,-0.012199402,0.037902832,-0.03149414,-0.016220093,-0.00970459,0.022445679,0.022949219,0.030761719,-0.023086548,0.038604736,-0.00920105,-0.016494751,0.06124878,-0.026687622,-0.0009274483,-0.028259277,-0.0011873245,-0.025558472,-0.019454956,0.00466156,-0.0019207001],"createdAt":"2026-04-18T18:55:52.254Z","updatedAt":"2026-04-25T10:03:27.473Z","lastSeenAt":"2026-04-25T10:03:27.473Z","tsv":"'/api/v1/stripe/invoices/180':150 '0.02':72,140 '000':76 '0x8335':65 '180':42 '20':75 '2913':66 '6':80 'Base network API' 'USDC micropayment API' 'accept':49 'access':34 'actual':206 'addit':181 'advertis':108 'ai/ml':120 'analysi':123 'analyt':119 'api':83,116 'appear':153 'attach':92 'base':8,22,60,77 'base-network' 'behavior':207,233 'behind':43 'beyond':200 'broader':105 'call':12,26,115 'caller':90,214 'classif':125 'connect':177 'contract':64 'convers':135 'cost':70 'cover':147 'crawl':169 'data':118,129 'decim':81 'detail':182 'docs/pricing/readme':170 'document':166,195 'effect':198 'embed':126 'empti':199 'endpoint':6,20,30,48,151,210 'exact':161 'exampl':190 'expect':216 'expos':155 'field':231 'finance/crypto':127 'gate':3,17 'generat':136 'geocod':133 'header':97 'howev':143 'id':41 'infer':121 'invoic':5,19,38,40,158,224 'json':54,218 'json-response' 'key':84 'land':202 'larg':212 'limit':87 'list':146 'lowpaymentfee' 'lowpaymentfee.com':32,106 'market':128 'maximum':69 'network':61 'no-api-key' 'object':159 'opaqu':213 'openapi':187 'page':171,196,203 'pay':10,24,113 'pay-per-cal':9,23,112 'pay-per-call' 'pay-per-request invoice' 'payload':192 'payment':55,96,102 'paywal':46 'per':11,25,73,114,141 'platform':107 'post':50 'prepar':228 'price':138 'prompt':178 'proof':103 'provid':33 'rate':86 'relat':220 'request':51,74,142 'request/response':191 'requir':89 'resourc':39 'respons':162,219 'return':53,172 'schema':163 'sentiment':122 'servic':132 'settl':57 'simpli':91 'span':117 'spec':188 'specif':145 'stripe':4,18,37,157,223 'stripe invoice API' 'stripe-invoice' 'suit':110 'summar':124 'summari':204 'undocu':230 'unit':78 'usdc':14,28,63 'usdc-settlement' 'use':62 'util':131 'valid':100,134 'wallet':176 'wallet-connect':175 'x':95 'x-payment':94 'x402':2,16,45,101 'x402 paid endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"cc0e3854-c31d-44cb-91ba-7a64b8107f7d","listingId":"4403f28d-a153-46f0-88b4-6836ffcf0498","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/180","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:52.254Z"}],"sources":[{"listingId":"4403f28d-a153-46f0-88b4-6836ffcf0498","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/180","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:52.254Z","lastSeenAt":"2026-04-25T10:03:27.473Z"}],"details":{"listingId":"4403f28d-a153-46f0-88b4-6836ffcf0498","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/180 \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\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 advertising USDC on Base network at maxAmountRequired 20000","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/180"},{"claim":"Platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/180"}],"useCases":["Retrieving Stripe invoice data via a single micropayment without needing an API key","Programmatic access to invoice #180 for automated billing or reconciliation workflows","Agent-driven payment-gated data retrieval on Base L2"],"bestFor":["Developers experimenting with x402 payment-gated APIs","Agents that can settle USDC payments on Base for per-call access","Use cases requiring keyless, pay-as-you-go invoice data retrieval"],"notFor":["Bulk invoice processing requiring batch access to many invoices at once","Users who need comprehensive Stripe API coverage (this is a single-resource endpoint)","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.34Z"},"updatedAt":"2026-04-25T10:03:27.473Z"}}