{"id":"708d164e-9890-4452-9cd8-cb422a1c04ca","shortId":"WFDNEg","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, paying $0.02 in USDC per request.","tagline":"x402-gated Stripe invoice endpoint on Base, paying $0.02 in USDC per request.","description":"This endpoint at lowpaymentfee.com provides access to a Stripe invoice resource (invoice #29) behind an x402 paywall. It is part of a broader platform that offers a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per call, settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/stripe/invoices/29` is labeled \"Premium API Access\" and accepts POST requests. Payment is handled via the x402 protocol: callers receive a 402 challenge containing the payment details (asset, amount, payTo address), construct an on-chain USDC payment on Base, and include the payment proof in the X-PAYMENT header to unlock the response. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. The payment timeout is 300 seconds.\n\nDocumentation on the site is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The actual data returned by this invoice endpoint is unknown beyond the stated mime type of application/json. The platform advertises no API keys, no rate limits, and instant access, but these claims cannot be independently verified from the crawled material.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","stripe-invoice","json-response","post-method"],"categories":["finance","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","Stripe invoice API","lowpaymentfee","crypto-paid endpoint"],"warnings":["No OpenAPI spec or request/response schema available","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The specific purpose and response format of /api/v1/stripe/invoices/29 is undocumented","Cannot verify claims of 'no rate limits' or actual data returned"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/29","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/29","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 request/response schemas, no OpenAPI spec, and all doc pages return only a wallet-connect prompt. The purpose of this specific invoice endpoint is unclear beyond its label.","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":"2026-04-19T10:31:18.692Z","embedding":[-0.025680542,-0.0032291412,0.008888245,-0.0068969727,0.018692017,-0.02557373,-0.039123535,0.02406311,0.039093018,-0.08728027,0.023284912,-0.03488159,-0.052642822,-0.040985107,-0.023269653,0.02015686,-0.01927185,0.021911621,-0.061157227,0.058013916,0.0362854,0.010917664,-0.017944336,0.022521973,-0.016098022,-0.017150879,-0.026382446,-0.038146973,-0.010612488,-0.02520752,0.02368164,-0.02444458,0.0035591125,0.0044937134,0.01423645,-0.0027236938,0.000664711,0.05206299,0.01713562,-0.014259338,-0.01965332,-0.054382324,0.010437012,-0.019073486,-0.0028915405,0.00097227097,0.027374268,-0.0073432922,-0.016067505,0.015419006,-0.045043945,-0.0049438477,-0.0043144226,-0.02128601,0.022598267,0.021942139,0.015342712,0.0028381348,0.008430481,0.014503479,0.025238037,-0.0769043,-0.029541016,-0.019134521,0.00087594986,0.070129395,-0.020202637,0.06304932,0.008476257,0.046966553,0.014808655,0.062805176,0.030319214,0.022338867,-0.008224487,-0.026290894,0.02180481,0.060272217,-0.003791809,0.008934021,-0.006916046,-0.011459351,-0.07446289,-0.007369995,-0.023345947,-0.04434204,-0.03970337,-0.014297485,-0.039733887,0.037261963,-0.10021973,-0.014465332,-0.0022125244,0.009941101,0.005531311,-0.013702393,-0.050445557,0.0033893585,-0.016983032,0.015716553,0.015914917,-0.020462036,0.005886078,0.011367798,0.040130615,0.0440979,0.046142578,0.024398804,-0.0141067505,-0.004207611,-0.021133423,0.02696228,-0.0027046204,-0.034057617,0.008598328,0.013450623,-0.02418518,0.023284912,-0.013313293,0.0056915283,-0.054748535,0.04547119,-0.01838684,0.008811951,0.022979736,-0.04434204,-0.03164673,0.0030994415,-0.042663574,-0.026809692,0.017623901,0.016021729,0.021133423,-0.034484863,-0.020385742,0.009666443,0.00207901,-0.0287323,-0.04309082,-0.024765015,0.038604736,-0.01889038,0.034332275,0.028747559,-0.08068848,-0.027008057,-0.05886841,-0.0031204224,-0.044799805,0.0018444061,0.0018053055,0.030136108,-0.0009407997,-0.0047073364,-0.04449463,-0.010444641,-0.0041656494,0.006088257,-0.004131317,0.028549194,-0.018875122,0.017456055,0.05255127,0.016326904,0.029281616,0.039520264,-0.0146102905,-0.08795166,-0.074035645,-0.0032787323,0.013580322,-0.019714355,-0.032165527,0.00017392635,-0.009025574,-0.05908203,-0.029876709,-0.013145447,0.019973755,-0.05569458,-0.022338867,-0.005466461,-0.002002716,-0.01486969,-0.050750732,-0.017242432,-0.03387451,0.037139893,0.03024292,0.04348755,0.03845215,-0.018356323,0.03741455,0.02973938,-0.007537842,-0.040527344,0.030776978,-0.026489258,0.003736496,0.00053977966,0.012046814,-0.023834229,0.01991272,0.05630493,0.019729614,-0.0061073303,0.0035743713,-0.028808594,-0.020248413,-0.01499939,0.0054130554,0.017059326,-0.01939392,0.0012407303,-0.028152466,-0.029556274,-0.020446777,0.00705719,0.040161133,0.036468506,0.008514404,0.0064697266,-0.00007420778,0.008651733,-0.0072135925,0.047088623,0.031173706,0.033477783,-0.02168274,-0.02722168,0.018218994,0.016036987,-0.010597229,-0.0029735565,-0.009338379,0.02180481,-0.014846802,-0.0069732666,0.007472992,-0.0064086914,-0.021316528,-0.031829834,0.015930176,0.026611328,0.031921387,-0.01159668,-0.051361084,-0.058807373,0.0345459,0.045959473,0.018249512,0.018478394,-0.029327393,-0.026184082,-0.020843506,-0.07458496,0.041381836,0.07635498,-0.011680603,0.0008711815,0.02961731,-0.010475159,-0.047943115,0.0027942657,-0.0016584396,-0.012336731,-0.0031986237,0.009803772,-0.040802002,-0.011291504,0.0104522705,0.025375366,0.06756592,-0.027664185,-0.04626465,-0.03010559,0.012573242,0.0027256012,-0.02557373,0.018249512,-0.00178051,0.01663208,0.0099105835,0.039154053,0.020889282,0.011360168,0.020492554,-0.027069092,0.00094747543,-0.023254395,-0.028884888,0.0262146,-0.0025291443,-0.04824829,0.02204895,-0.03543091,0.03894043,-0.036865234,0.021575928,-0.024307251,0.02758789,0.027923584,0.012077332,-0.029190063,0.010826111,0.040985107,0.01802063,0.06933594,0.015388489,0.009597778,-0.019729614,0.055786133,-0.023040771,-0.0027923584,0.025253296,0.035247803,0.049468994,-0.009559631,-0.05517578,-0.051483154,0.0030345917,-0.007965088,0.030731201,-0.015823364,0.047698975,-0.0211792,-0.0010290146,-0.024536133,-0.029220581,-0.026367188,0.018173218,-0.02619934,-0.005191803,-0.00030612946,-0.03125,0.01512146,-0.0038452148,0.0028896332,0.012489319,0.05807495,-0.00076436996,-0.04925537,-0.021896362,-0.018493652,-0.031143188,-0.0006213188,0.021652222,0.016784668,0.040527344,0.03427124,-0.06109619,0.015052795,0.012397766,-0.016693115,0.021636963,0.011360168,0.023483276,-0.05569458,-0.030838013,-0.021484375,-0.059906006,0.02545166,-0.020217896,0.013801575,0.0569458,0.010108948,-0.027008057,-0.03036499,0.03152466,-0.04525757,0.015960693,0.03010559,-0.0025596619,-0.030258179,0.0061302185,0.014961243,0.0064811707,0.050811768,0.004802704,0.009002686,0.068725586,0.041168213,0.010116577,0.012611389,0.008468628,0.028778076,0.0027046204,-0.012184143,-0.022415161,0.020141602,0.033081055,-0.020812988,-0.03555298,-0.06585693,0.038330078,0.022781372,0.04623413,0.00447464,-0.011802673,0.051513672,0.020706177,0.0013656616,-0.031143188,-0.02470398,-0.053710938,-0.015205383,0.020614624,-0.020004272,0.012649536,-0.037353516,0.0035915375,-0.010116577,-0.0036716461,-0.031204224,0.036376953,-0.0038280487,0.023971558,0.018585205,0.011451721,0.062408447,0.055908203,-0.028701782,0.01777649,-0.010650635,-0.024475098,0.017028809,0.032226562,-0.0027160645,-0.015274048,-0.053863525,-0.025970459,0.013191223,-0.014373779,-0.076049805,-0.013793945,0.004432678,0.030578613,0.020187378,0.006336212,-0.051116943,0.0024147034,-0.03149414,-0.052490234,0.008018494,-0.04751587,0.023880005,0.028961182,-0.03451538,0.024734497,-0.015457153,0.016418457,0.014533997,0.0047302246,-0.0021400452,0.008628845,-0.030960083,0.01309967,0.01953125,0.022216797,0.011421204,0.035217285,0.014221191,0.0043182373,0.042663574,0.00006169081,-0.0067977905,-0.033721924,0.006225586,-0.011260986,0.01675415,0.0029563904,-0.027786255,0.0073242188,-0.0046806335,-0.03050232,-0.0340271,0.0063819885,-0.009208679,0.0058250427,0.020935059,-0.035217285,-0.0028152466,-0.046936035,-0.017288208,0.00258255,0.072021484,0.012420654,-0.024749756,-0.07373047,-0.013122559,0.028305054,0.004890442,0.013999939,-0.014289856,-0.0062217712,-0.03326416,-0.030212402,-0.008743286,-0.028442383,0.027404785,0.010070801,-0.03326416,0.05001831,0.01499176,0.032440186,0.011314392,0.006954193,0.021896362,-0.021942139,-0.0014324188,-0.02696228,0.033447266,0.013496399,-0.028442383,-0.051757812,0.039764404,-0.0076293945,0.044158936,-0.028411865,-0.017547607,0.0035743713,0.004749298,0.018936157,-0.036071777,0.0012655258,0.022079468,-0.047546387,-0.06829834,0.007637024,-0.008430481,0.021957397,-0.007701874,0.011260986,0.022872925,-0.016967773,0.009857178,0.019180298,-0.017593384,-0.0053710938,-0.015586853,-0.036590576,-0.0059165955,0.0024414062,-0.008293152,0.0060157776,-0.005432129,0.0096206665,-0.0074424744,-0.028213501,0.037841797,-0.00028586388,0.013336182,0.03427124,0.0019702911,0.017333984,0.031204224,0.008003235,-0.025924683,0.032348633,0.017974854,0.0031967163,-0.03062439,0.01852417,0.0206604,-0.01777649,0.0045280457,-0.008506775,-0.009925842,-0.013755798,0.0019874573,0.017333984,0.038360596,0.0140686035,-0.05053711,0.020065308,0.0077400208,-0.010032654,-0.019500732,0.013908386,0.024017334,-0.044311523,0.019851685,0.028701782,0.041870117,-0.020553589,0.027328491,-0.0005507469,0.034423828,0.03024292,-0.0039901733,-0.0057868958,0.017913818,0.0037212372,0.0034637451,0.009033203,-0.0236969,-0.005897522,0.0017585754,0.033843994,0.022644043,0.0048446655,-0.012908936,-0.013671875,-0.002571106,0.00065135956,-0.010025024,0.012489319,0.027709961,0.026245117,-0.024871826,0.024658203,0.027786255,-0.019714355,-0.025619507,-0.004131317,0.018356323,-0.023223877,-0.0022449493,0.0146484375,0.0075149536,0.048706055,-0.053619385,0.0017251968,0.001502037,-0.001964569,-0.020843506,-0.034820557,-0.034698486,-0.024536133,0.03668213,-0.016296387,0.0014839172,0.029586792,0.019607544,0.0021820068,-0.0013208389,0.021240234,0.0099105835,-0.0008749962,-0.04888916,-0.026382446,-0.0046195984,0.01675415,-0.03125,0.026123047,-0.015068054,-0.011123657,0.0256958,-0.024932861,-0.0029296875,-0.010650635,0.0020580292,0.011192322,-0.0029964447,0.007537842,0.0035743713,-0.023651123,-0.0079422,-0.00054073334,0.02760315,-0.022735596,0.011039734,-0.017745972,0.012397766,-0.012939453,-0.010559082,0.022338867,0.037475586,0.0065727234,0.015899658,-0.016601562,0.041137695,-0.04623413,0.009941101,-0.011413574,-0.0074043274,-0.014221191,-0.032562256,-0.014427185,0.03503418,-0.0047950745,0.005256653,0.0043411255,-0.034484863,-0.029632568,-0.051086426,0.018615723,0.018066406,0.04168701,-0.042907715,0.013122559,0.00010895729,0.013923645,-0.020401001,0.0019321442,-0.009185791,-0.001534462,0.023620605,0.017227173,-0.020996094,-0.025497437,-0.04864502,-0.0138168335,-0.04812622,-0.05078125,-0.017593384,0.04397583,0.008415222,-0.01083374,-0.011917114,-0.016159058,0.00116539,-0.038360596,0.020599365,-0.007499695,0.014724731,0.011138916,-0.0109939575,-0.0064811707,0.00036597252,0.005207062,0.011421204,-0.0048828125,-0.0054512024,-0.01802063,-0.005870819,0.017791748,0.0034732819,0.03378296,-0.018203735,-0.00674057,-0.030807495,-0.043823242,0.009521484,-0.026031494,0.013557434,0.00011920929,0.021469116,-0.05065918,-0.013648987,-0.02394104,-0.020141602,0.025436401,0.018859863,0.0063476562,-0.015457153,-0.006591797,-0.01309967,-0.020965576,-0.03768921,0.0031528473,0.010368347,0.0052490234,0.02319336,0.049316406,-0.019470215,-0.00018239021,-0.021575928,0.011672974,0.049713135,-0.016555786,0.015129089,0.0042037964,0.007408142,-0.030517578,-0.0072784424,-0.04824829,0.03640747,0.05593872,0.007911682,-0.009391785,-0.0236969,-0.00617218,0.0058059692,0.026733398,-0.028930664,0.0054893494,-0.03942871,0.017837524,-0.022247314,0.01966858,0.019683838,0.03050232,-0.016098022,-0.04547119,-0.010910034,0.0031223297,-0.021255493,-0.056671143,-0.012672424,-0.07232666,-0.0015192032,-0.009635925,-0.023788452,-0.010826111,0.020370483,-0.017333984,-0.083740234,0.018814087,0.036193848,0.023223877,0.036102295,-0.02696228,0.04107666,0.024154663,-0.017486572,-0.0031318665,0.035369873,-0.042175293,-0.022628784,-0.017807007,0.0385437,-0.002008438,-0.038879395,0.014663696,0.000055253506,0.028915405,-0.003929138,-0.00060653687,-0.02607727,0.016708374,0.0060195923,0.0017147064,0.0021705627,-0.022506714,0.039855957,-0.06335449,0.011245728,-0.00756073,0.0058631897,-0.0037021637,0.041625977,0.036743164,-0.03656006,-0.002002716,0.01083374,0.009490967,0.040649414,-0.012840271,0.03475952,0.021820068,0.00021588802,0.0061035156,-0.0023422241,-0.005874634,-0.054748535,-0.037261963,0.024093628,0.00044441223,-0.0013341904,-0.0231781,-0.000035643578,0.0070762634,-0.0010480881,-0.0058670044,-0.024963379,-0.0069007874,-0.015777588,0.005832672,0.0075798035,0.020599365,-0.004589081,0.03149414,0.037139893,0.030075073,0.005683899,-0.019882202,0.011558533,0.029434204,0.011474609,-0.013130188,0.021942139,0.0002901554,0.008911133,0.030548096,0.008834839,-0.016357422,-0.020996094,-0.0024642944,-0.0056495667,0.0038928986,-0.008232117,0.010467529,0.008415222,-0.0016269684,-0.0010156631,-0.0079422,0.033355713,-0.029067993,-0.03326416,-0.011917114,-0.005340576,0.016983032,0.0011358261,-0.0054473877,0.039520264,-0.01209259,0.062805176,0.0022335052,0.0060043335,0.035125732,0.05130005,0.012016296,-0.026031494,0.016784668,-0.0063095093,0.0034675598,0.0064048767,-0.024337769,0.02330017,0.041229248,-0.013595581,0.039764404,-0.011802673,0.02319336,-0.0033664703,0.024597168,-0.008735657,-0.0046844482,-0.01966858,0.044830322,-0.029434204,0.016967773,0.02508545,-0.0002770424,-0.0058135986,-0.015625,-0.042388916,0.033599854,0.024719238,0.0011587143,0.032409668,-0.0037670135,0.027999878,-0.037994385,-0.022003174,-0.024368286,-0.033843994,-0.026733398,0.009803772,-0.0043563843,0.012145996,0.019897461,-0.004211426,-0.0116119385,-0.020370483,0.034576416,-0.01235199,0.004764557,-0.021057129,-0.02027893,-0.021026611,-0.01864624,-0.02947998,0.015220642,0.005268097,0.034698486,0.027069092,-0.0006489754,0.029708862,-0.007434845,-0.016983032,-0.016479492,-0.03579712,0.005645752,-0.029373169,-0.012588501,-0.014945984,0.037200928,0.0637207,0.032592773,0.043945312,0.02935791,0.02848816,-0.0023040771,0.038482666,-0.025390625,-0.009567261,-0.036590576,0.030914307,0.010864258,0.023040771,-0.021896362,0.0008735657,0.03010559,0.025939941,0.005924225,0.02418518,0.06738281,0.009185791,-0.02331543,0.05206299,-0.008682251,-0.015312195,-0.027069092,-0.014808655,0.06652832,0.02670288,0.03845215,0.022079468,0.0003311634,-0.01626587,0.010055542,-0.028213501,-0.014259338,0.052642822,0.0019683838,-0.02041626,-0.03552246,-0.0034770966,0.0022125244,-0.04119873,0.0010938644,0.011650085,-0.005378723,0.00068330765,-0.007369995,0.0005631447,-0.0023727417,0.005680084,0.01424408,0.018005371,-0.032196045,0.0004043579,0.021530151,0.018661499,0.019927979,0.014572144,0.046142578,-0.035614014,-0.020950317,-0.0128479,0.02468872,0.0076446533,0.0068511963,0.042755127,0.011169434,0.036712646,0.036712646,-0.012619019,-0.0043029785,0.03289795,-0.005027771,0.0076293945,0.042541504,0.030838013,0.013404846,0.0385437,0.032470703,0.02859497,-0.039245605,0.011329651,-0.003276825,0.024978638,-0.012512207,-0.022247314,0.0029239655,0.006072998,0.02998352,-0.013977051,-0.0029125214,0.015823364,0.051635742,-0.00086832047,-0.0040397644,-0.008636475,-0.009246826,0.002023697,-0.005428314,0.018127441,-0.030151367,0.006023407,0.018692017,0.020233154,-0.027526855,0.018936157,-0.022506714,-0.029586792,-0.0026721954,0.014678955,-0.026901245,0.019470215,-0.017532349,-0.0026302338,-0.039855957,0.010070801,0.011909485,0.0043563843,0.014816284,0.010658264,0.015052795,0.011650085,0.040008545,0.019104004,-0.0024414062,0.0028591156,-0.01096344,0.012573242,0.06317139,-0.006790161,0.0048217773,-0.017242432,0.017700195,0.013763428,-0.03125,-0.021560669,0.02508545,-0.01638794,-0.016799927,-0.002752304,0.043273926,0.006187439,0.048309326,-0.011299133,-0.013183594,0.018707275,0.029174805,0.018554688,-0.031036377,0.015159607,0.027160645,-0.01864624,0.05102539,0.043640137,-0.0015096664,0.01158905,0.010391235,-0.006046295,-0.0061569214,-0.029434204,0.011871338,-0.020843506,0.0055618286,-0.0046920776,0.023468018,-0.025894165,-0.03930664,0.024261475,-0.017120361,-0.030288696,-0.019882202,0.0025615692,-0.0018377304,0.018157959,0.03942871,0.033966064,-0.03717041,0.05984497,-0.005344391,0.056152344,0.0015335083,0.011428833,0.033477783,0.0423584,0.03274536,0.004333496,0.03918457,-0.01512146,0.005203247,0.029846191,0.0085372925,0.012077332,-0.0021781921,-0.014259338,0.041870117,-0.00082826614,0.038757324,-0.023483276,0.0013933182,0.0006508827,-0.0028133392,0.0029335022,-0.0025806427,-0.010795593,0.022705078,0.05328369,-0.044281006,-0.01663208,-0.0289917,0.0017547607,0.022399902,-0.016830444,0.016662598,0.0067214966,-0.026321411,0.010955811,-0.012870789,-0.019500732,0.022247314,0.031677246,-0.020050049,-0.019088745,0.006351471,0.013870239,-0.01033783,0.0362854,0.017105103,-0.0049705505,0.014389038,0.048187256,-0.007423401,0.034729004,-0.00969696,0.035186768,0.038909912,-0.015296936,-0.007293701,0.0024299622,0.00630188,-0.011764526,0.0033855438,0.040649414,0.016937256,-0.006614685,-0.0042533875,-0.0045928955,-0.0026760101,0.010032654,-0.012313843,-0.004814148,0.0026817322,0.002122879,0.012832642,0.007247925,0.0053596497,-0.0041160583,-0.0026550293,-0.015510559,0.015655518,0.020935059,0.05038452,-0.03967285,0.014724731,0.0025138855,-0.019088745,-0.017288208,-0.016357422,0.0075531006,-0.03845215,0.035217285,0.012969971,0.015625,0.007144928,-0.030838013,0.019302368,0.045928955,0.014533997,0.02848816,0.010795593,-0.006175995,0.0049209595,-0.003124237,0.0077934265,-0.0018444061,0.005241394,-0.012756348,0.009887695,-0.018875122,-0.016433716,0.029434204,-0.004749298,0.011299133,0.011672974,0.015106201,0.048706055,-0.013374329,-0.0113220215,-0.009429932,-0.002281189,-0.0055274963,-0.0016813278,-0.01687622,0.013427734,0.044006348,-0.005935669,0.0028362274,0.026901245,0.001077652,0.029815674,0.029190063,0.02520752,0.050842285,0.024612427,-0.01651001,0.0067329407,0.019882202,-0.016921997,-0.03753662,0.015686035,-0.028671265,-0.023284912,0.019592285,0.012268066,-0.016616821,-0.024810791,-0.025558472,-0.009117126,-0.017181396,-0.0013608932,-0.0029525757,0.009765625,-0.032928467,-0.0155181885,-0.0137786865,-0.01108551,-0.035736084,-0.019210815,-0.013702393,-0.020858765,-0.04168701,-0.005882263,-0.0053215027,0.007156372,-0.014183044,0.009811401,-0.014442444,0.023025513,-0.01939392,-0.010772705,-0.006504059,0.030593872,-0.002937317,0.0028800964,0.008399963,-0.0019283295,-0.023651123,-0.010467529,-0.0038833618,-0.020050049,0.05154419,-0.015388489,0.047027588,-0.009742737,-0.0141067505,0.005882263,-0.02017212,-0.015075684,0.013412476,-0.028137207,-0.03363037,0.037475586,0.015571594,0.0045547485,0.012718201,0.05218506,-0.00381279,-0.018722534,0.010116577,0.039611816,0.011016846,0.03265381,-0.0048599243,-0.0015258789,-0.019821167,0.009773254,-0.016540527,-0.004573822,-0.021942139,0.0029239655,0.002878189,0.020126343,0.018478394,-0.01776123,-0.013946533,0.04031372,0.017562866,-0.014183044,0.048553467,0.010597229,0.010917664,-0.012664795,-0.0054512024,0.0015554428,0.03515625,0.020629883,0.032043457,-0.024627686,0.012962341,-0.025375366,0.01436615,0.007507324,-0.009178162,-0.025268555,-0.0045547485,-0.019714355,0.011062622,-0.018569946,0.004108429,-0.0015993118,0.027252197,-0.0037345886,-0.02482605,-0.0048179626,0.022247314,0.004787445,-0.007949829,-0.0053977966,0.0011053085,0.023666382,-0.01449585,0.022445679,-0.054595947,-0.030258179,-0.019226074,-0.015670776,0.037353516,0.0023975372,-0.01689148,0.00289917,0.008705139,0.007671356,-0.016555786,0.031021118,-0.006843567,0.0013141632,0.014793396,0.029037476,-0.012489319,0.021835327,-0.0041236877,-0.017974854,0.028137207,-0.005104065,0.02166748,0.019805908,0.05126953,0.018081665,0.011810303,0.01789856,-0.0012607574,-0.0010671616,-0.011520386,-0.008651733,-0.00028181076,-0.0019006729,0.012275696,-0.012046814,-0.025497437,0.0024986267,-0.016906738,-0.02658081,0.01739502,0.0010032654,0.046081543,-0.0146865845,0.037200928,-0.022109985,-0.016586304,-0.0155181885,0.010437012,-0.01361084,0.0067329407,0.013801575,0.0019798279,-0.006088257,-0.0010604858,-0.0075263977,-0.015403748,0.0075912476,-0.0032196045,-0.008079529,0.0124053955,0.004131317,0.011009216,0.039245605,0.012489319,-0.0138549805,0.016693115,0.017990112,0.028701782,0.0010318756,0.01737976,0.0000027418137,-0.027069092,0.008094788,-0.0025367737,-0.0103302,0.017410278,-0.0028705597,0.010848999,-0.034851074,0.013908386,-0.009468079,0.053222656,-0.022598267,0.016021729,-0.023666382,0.013542175,-0.019180298,0.021118164,-0.042266846,0.009140015,0.024246216,-0.016159058,0.0009698868,0.015014648,-0.021835327,0.02748108,0.03503418,-0.00080633163,-0.034332275,-0.0084991455,-0.0009384155,0.0211792,0.0032615662,-0.015197754,-0.03390503,-0.018249512,-0.0036716461,-0.0004312992,-0.006713867,-0.0009784698,0.010040283,0.017242432,0.009315491,-0.0039596558,0.03829956,-0.021026611,-0.014038086,-0.015289307,0.012710571,0.024490356,0.0317688,-0.0234375,0.045196533,-0.0036067963,-0.01701355,0.06335449,-0.028289795,0.01134491,-0.023620605,-0.0032196045,-0.025146484,-0.026168823,-0.005191803,-0.013259888],"createdAt":"2026-04-18T18:55:53.459Z","updatedAt":"2026-04-25T09:32:50.610Z","lastSeenAt":"2026-04-25T09:32:50.610Z","tsv":"'/api/v1/stripe/invoices/29':89 '0.02':10,24,76,158 '000':149 '20':148 '29':41 '300':163 '402':109 '6':154 'Base network API' 'Stripe invoice API' 'USDC micropayment API' 'accept':96 'access':34,94,233 'actual':206 'addit':188 'address':118 'advertis':224 'ai/ml':66 'amount':116,145 'analyt':65 'api':62,93,174,226 'application/json':221 'asset':115 'avail':204 'base':8,22,84,127,150 'base-network' 'behind':42 'beyond':215 'broader':51 'call':78 'caller':106 'cannot':237 'chain':123 'challeng':110 'claim':236 'connect':183 'construct':119 'contain':111 'content':190 'crawl':243 'crypto-paid endpoint' 'data':64,69,207 'decim':155 'detail':114 'doc':173 'document':165,199 'endpoint':6,20,30,88,212 'equal':157 'exampl':202 'extrem':170 'finance/web3':68 'gate':3,17 'handl':101 'header':138 'includ':129 'independ':239 'infer':67 'instant':232 'invoic':5,19,38,40,211 'json-response' 'key':227 'label':91 'limit':230 'lowpaymentfee' 'lowpaymentfee.com':32 'materi':244 'max':144 'mime':218 'network':85 'offer':54 'on-chain':121 'openapi':194 'page':178 'part':48 'pay':9,23,59 'pay-per-call API' 'pay-per-request':58 'payload':203 'payment':99,113,125,131,137,160 'payto':117 'paywal':45 'per':13,27,60,77 'platform':52,223 'post':97 'post-method' 'premium':92 'price':74,175 'prompt':185 'proof':132 'protocol':105 'provid':33 'rate':229 'readm':177 'receiv':107 'render':180 'request':14,28,61,98 'request/response':197 'requir':146 'resourc':39 'respons':142 'return':208 'schema':198 'second':164 'servic':72 'settl':79 'site':168 'span':63 'spars':171 'spec':195 'specif':87 'state':217 'stripe':4,18,37 'stripe-invoice' 'technic':189 'timeout':161 'type':219 'unit':151 'unknown':214 'unlock':140 'usdc':12,26,81,124,153 'usdc-settlement' 'util':71 'varieti':56 'verifi':240 'via':102 'wallet':184 'x':136 'x-payment':135 'x402':2,16,44,104 'x402 API' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"1ecfab22-329d-46d2-b858-27c55afd16ec","listingId":"708d164e-9890-4452-9cd8-cb422a1c04ca","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/29","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:53.459Z"}],"sources":[{"listingId":"708d164e-9890-4452-9cd8-cb422a1c04ca","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/29","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:53.459Z","lastSeenAt":"2026-04-25T09:32:50.610Z"}],"details":{"listingId":"708d164e-9890-4452-9cd8-cb422a1c04ca","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/29 \\\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":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/29"},{"claim":"Platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/29"},{"claim":"Platform offers APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving Stripe invoice data via a single micropayment without API key registration","Programmatic access to invoice information for automated billing workflows","Agent-driven payment and data retrieval using x402 protocol on Base"],"bestFor":["Developers wanting keyless, pay-per-use API access settled in USDC","AI agents that can autonomously pay for API calls via x402","Users who prefer on-chain micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or OpenAPI specs before integrating","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.232Z"},"updatedAt":"2026-04-25T09:32:50.610Z"}}