{"id":"dcf98097-d05a-4831-8d78-a96779695d45","shortId":"S6y27x","kind":"x402","title":"x402-gated Stripe invoice endpoint on Base, pay $0.02 per request in USDC.","tagline":"x402-gated Stripe invoice endpoint on Base, pay $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. It is part of a broader platform offering pay-per-request APIs across categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The specific endpoint `/api/v1/stripe/invoices/140` appears to be related to Stripe invoice data, though the exact response payload is not documented.\n\nPayment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum cost of $0.02 per request (20000 base units at 6 decimals). The platform advertises no API keys, no rate limits, and instant access — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The endpoint accepts POST requests and returns application/json.\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 further technical detail. There is no OpenAPI spec, no example request/response bodies, and no description of what data the invoices endpoint actually returns.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","stripe-invoices","json-response","no-api-key"],"categories":["finance","infrastructure"],"synonyms":["stripe invoice API","x402 paid endpoint","USDC micropayment API","Base network API","pay-per-call API","lowpaymentfee"],"warnings":["No OpenAPI spec or schema available","Documentation pages (/docs, /pricing, /README) render only 'Connect wallet' with no content","Exact request body format and response payload are unknown","The purpose of '/api/v1/stripe/invoices/140' is unclear — it may be a demo or placeholder endpoint"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/invoices/140","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/140","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear, but there is no documentation, no OpenAPI spec, no example request/response, and the actual functionality of the invoices endpoint is undocumented. Effectively a stub listing.","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":"2026-04-19T10:22:08.641Z","embedding":[-0.020950317,-0.010169983,0.006679535,-0.012580872,0.00969696,-0.018035889,-0.03616333,0.024902344,0.030822754,-0.08154297,0.009605408,-0.025466919,-0.05758667,-0.04623413,-0.021881104,0.018035889,-0.011543274,0.031051636,-0.04989624,0.057250977,0.033050537,0.0026187897,-0.004798889,0.014984131,-0.014633179,-0.01235199,-0.01210022,-0.03152466,-0.007293701,-0.022079468,0.0289917,-0.025161743,-0.00015425682,0.008415222,0.00806427,-0.0112838745,0.006389618,0.048980713,0.025756836,-0.004306793,-0.020401001,-0.053588867,0.0110321045,0.00026917458,-0.009460449,0.00021517277,0.030685425,-0.011703491,-0.002746582,0.012649536,-0.041381836,-0.02859497,0.0068359375,-0.0073623657,0.026397705,0.03186035,0.023406982,-0.01625061,0.014274597,0.020309448,0.03314209,-0.07281494,-0.023666382,-0.01687622,0.012077332,0.067871094,-0.023651123,0.05834961,0.010192871,0.04989624,0.016647339,0.058746338,0.020263672,0.011817932,-0.0030174255,-0.035095215,0.028625488,0.06390381,-0.011230469,0.0087890625,-0.008911133,-0.008224487,-0.07727051,-0.013061523,-0.023590088,-0.055236816,-0.018371582,-0.024612427,-0.027023315,0.028747559,-0.1060791,-0.02571106,-0.006214142,0.002040863,0.010719299,-0.011741638,-0.035827637,-0.0042037964,-0.023117065,0.0015659332,0.015365601,-0.017486572,0.0058555603,0.009361267,0.038604736,0.03363037,0.04006958,0.037200928,-0.011207581,-0.00082588196,-0.031082153,0.033966064,-0.00008100271,-0.03488159,0.00793457,0.016204834,-0.03640747,0.027267456,-0.013023376,0.008934021,-0.06008911,0.04660034,-0.018997192,0.02128601,0.007904053,-0.038085938,-0.026000977,0.0047187805,-0.035247803,-0.012130737,0.009986877,0.014823914,0.0013628006,-0.024963379,-0.028274536,0.021148682,0.0009441376,-0.021224976,-0.046569824,-0.015541077,0.040649414,-0.016067505,0.028305054,0.022720337,-0.09680176,-0.01889038,-0.049224854,0.015914917,-0.040985107,-0.000344038,0.004634857,0.04333496,-0.0053634644,-0.0112838745,-0.03640747,-0.013076782,-0.003730774,0.006679535,0.0051231384,0.028152466,-0.02128601,0.023406982,0.05706787,0.018936157,0.02659607,0.040496826,-0.013114929,-0.08746338,-0.064086914,-0.014564514,-0.008041382,-0.020309448,-0.033325195,0.014663696,-0.00340271,-0.060668945,-0.031433105,-0.0181427,0.016983032,-0.05078125,-0.021835327,-0.00907135,-0.0056495667,-0.015609741,-0.06210327,-0.0065689087,-0.03829956,0.050079346,0.030532837,0.0423584,0.031204224,-0.008018494,0.04360962,0.042419434,-0.011100769,-0.045288086,0.017456055,-0.028152466,0.007926941,-0.013214111,0.018188477,-0.033935547,0.021743774,0.061645508,-0.0006403923,-0.01348114,-0.01247406,-0.032104492,-0.022888184,-0.012557983,0.0022182465,0.020492554,-0.02355957,0.0042495728,-0.037322998,-0.028137207,-0.014427185,0.0015468597,0.047607422,0.037139893,0.0073928833,0.00026106834,0.011878967,0.019210815,-0.030059814,0.043273926,0.02482605,0.022262573,-0.016799927,-0.03616333,0.022964478,0.025527954,-0.0048675537,0.001534462,-0.022521973,0.014587402,-0.017440796,-0.02444458,-0.0013914108,-0.020217896,-0.029266357,-0.027023315,0.0048942566,0.018798828,0.03302002,-0.011100769,-0.045440674,-0.059539795,0.037078857,0.053497314,0.013832092,0.013748169,-0.028793335,-0.028137207,-0.021865845,-0.07598877,0.04727173,0.062805176,-0.010948181,0.0141067505,0.04055786,-0.0037727356,-0.040893555,-0.00029683113,-0.0093688965,-0.017944336,-0.02168274,0.006629944,-0.04724121,0.014785767,0.010391235,0.016799927,0.06185913,-0.016967773,-0.030761719,-0.023864746,0.0020885468,0.011604309,-0.028579712,0.0035419464,0.00381279,0.009307861,0.022460938,0.030654907,0.007896423,0.009544373,0.013198853,-0.029464722,0.003736496,-0.027023315,-0.030975342,0.038757324,-0.0049438477,-0.03753662,0.025177002,-0.032958984,0.05014038,-0.045532227,0.021575928,-0.02192688,0.0209198,0.019958496,0.0026760101,-0.025115967,0.0049438477,0.032928467,0.015541077,0.06945801,0.012580872,0.012496948,-0.015129089,0.04421997,-0.018218994,-0.008270264,0.014411926,0.031829834,0.0496521,0.005329132,-0.057739258,-0.055267334,-0.00010371208,0.0035915375,0.032806396,-0.031311035,0.050628662,-0.0072669983,0.0021133423,-0.026123047,-0.024490356,-0.02003479,0.031585693,-0.004272461,-0.018920898,0.0036811829,-0.024658203,0.0138549805,0.0015945435,0.018798828,-0.0067100525,0.05380249,0.008529663,-0.043121338,-0.022918701,-0.03894043,-0.019577026,-0.002292633,0.023406982,0.012573242,0.03036499,0.039642334,-0.05899048,0.011489868,0.008613586,-0.01663208,0.016540527,0.021011353,0.01828003,-0.07470703,-0.023376465,-0.023757935,-0.052612305,0.019302368,-0.0234375,0.013053894,0.05239868,-0.0020217896,-0.036010742,-0.016159058,0.026626587,-0.052886963,0.022918701,0.01979065,-0.011138916,-0.030929565,0.007911682,0.015350342,0.0070648193,0.049743652,0.0015096664,0.020828247,0.06713867,0.03866577,0.014289856,0.0036811829,0.01260376,0.032836914,-0.0006790161,-0.010032654,-0.00756073,0.018951416,0.033416748,-0.019302368,-0.037475586,-0.055114746,0.050933838,0.030426025,0.05126953,0.008476257,-0.011619568,0.048431396,0.0062713623,0.0007472038,-0.028152466,-0.01739502,-0.05883789,-0.033721924,0.018341064,-0.009773254,0.012107849,-0.037719727,0.007621765,-0.008377075,-0.007434845,-0.036010742,0.034698486,-0.011306763,0.022659302,0.014007568,0.007858276,0.073913574,0.058380127,-0.038116455,0.015403748,-0.0013628006,-0.032348633,0.012931824,0.032989502,-0.00046777725,-0.022109985,-0.05718994,-0.02986145,0.01486969,-0.009025574,-0.073791504,-0.007335663,-0.0046691895,0.034088135,0.016830444,0.012260437,-0.03765869,0.006668091,-0.036987305,-0.049072266,0.008407593,-0.052001953,0.013023376,0.021728516,-0.027496338,0.02532959,-0.01436615,0.012588501,0.02456665,0.004699707,0.0018835068,0.019500732,-0.033935547,0.011657715,0.022338867,0.018096924,0.015144348,0.035461426,0.023483276,0.0014667511,0.03326416,-0.012039185,-0.021484375,-0.036132812,0.011749268,-0.018127441,0.007663727,0.011360168,-0.018630981,0.0027999878,-0.017044067,-0.038726807,-0.030975342,0.0075645447,-0.011291504,-0.0067977905,0.020996094,-0.02520752,0.009559631,-0.0597229,-0.023025513,0.00025868416,0.074157715,0.013656616,-0.023971558,-0.069885254,-0.009284973,0.035369873,0.0041885376,0.02671814,-0.012611389,-0.008422852,-0.021530151,-0.03250122,-0.008491516,-0.018936157,0.02079773,0.013473511,-0.02494812,0.037200928,0.014411926,0.03967285,0.010231018,0.010871887,0.008659363,-0.017471313,-0.0034427643,-0.023239136,0.021408081,0.008453369,-0.02607727,-0.052215576,0.047851562,-0.01574707,0.046051025,-0.03366089,-0.019058228,-0.0099105835,0.0052719116,0.028945923,-0.03338623,0.00623703,0.013336182,-0.045013428,-0.058380127,0.012992859,-0.009147644,0.018661499,0.0003912449,0.015823364,0.025665283,-0.003479004,0.006855011,0.01966858,-0.020233154,-0.0067367554,-0.007820129,-0.035095215,-0.011558533,0.0031471252,-0.006164551,0.0063819885,-0.0072746277,0.009010315,-0.0077056885,-0.03314209,0.03805542,0.01335144,0.012046814,0.034729004,0.0037631989,0.025985718,0.040496826,0.0044288635,-0.03225708,0.030426025,0.02670288,0.0041923523,-0.029846191,0.0073165894,0.018875122,-0.020812988,0.003982544,-0.00039482117,-0.006587982,-0.012939453,-0.00011694431,0.015716553,0.041290283,0.0152282715,-0.040283203,0.017578125,0.0066604614,-0.007545471,-0.028305054,0.010070801,0.015266418,-0.03967285,0.011184692,0.037994385,0.03942871,-0.017593384,0.017318726,-0.0028572083,0.04019165,0.026916504,-0.01158905,0.0024909973,0.0181427,0.00021612644,0.0017662048,0.01058197,-0.020935059,-0.0041885376,0.005016327,0.03152466,0.035888672,-0.0035037994,-0.015449524,-0.02255249,-0.009544373,-0.0000073313713,-0.017028809,0.018997192,0.022384644,0.020263672,-0.015365601,0.020339966,0.033203125,-0.016784668,-0.028625488,0.0009441376,0.008201599,-0.014526367,0.0020503998,0.01436615,0.0060806274,0.05368042,-0.056671143,0.006252289,-0.004119873,0.0038108826,-0.019088745,-0.03137207,-0.029251099,-0.02166748,0.038848877,-0.016830444,0.009803772,0.03289795,0.0146865845,-0.0020866394,-0.0031547546,0.011703491,0.006538391,-0.0022602081,-0.059387207,-0.03265381,-0.00737381,0.012062073,-0.037475586,0.026229858,-0.017700195,-0.01876831,0.035064697,-0.024353027,0.012741089,-0.017745972,-0.0046310425,0.0043563843,0.0007019043,0.014846802,0.014968872,-0.027908325,-0.015304565,0.010383606,0.031555176,-0.018493652,0.0138549805,-0.013420105,0.0046806335,-0.012649536,-0.01058197,0.02420044,0.055633545,0.0039482117,0.021316528,-0.023223877,0.04815674,-0.040496826,0.0034828186,-0.022918701,-0.0038013458,-0.021606445,-0.028137207,-0.011230469,0.03942871,-0.005580902,0.009506226,-0.0021457672,-0.04019165,-0.0340271,-0.052612305,-0.0034294128,0.012962341,0.040008545,-0.038391113,0.018798828,0.0024719238,0.009277344,-0.015579224,-0.0033626556,-0.008583069,-0.0045547485,0.03262329,0.02017212,-0.0028896332,-0.027023315,-0.04333496,-0.01751709,-0.043884277,-0.048736572,-0.01689148,0.03302002,0.0013551712,-0.011619568,-0.01979065,-0.026870728,0.0034370422,-0.03427124,0.023330688,-0.008308411,0.025360107,0.0013656616,-0.010055542,-0.006263733,0.00957489,-0.0009794235,0.01739502,-0.003238678,0.0022258759,-0.01828003,-0.0072250366,0.011978149,-0.00415802,0.033172607,-0.015914917,-0.0076026917,-0.020736694,-0.050354004,0.0045700073,-0.02407837,0.012565613,-0.009590149,0.0072135925,-0.041290283,-0.015167236,-0.022857666,-0.005882263,0.00919342,0.031463623,0.0050315857,-0.016525269,0.0000070929527,-0.00869751,-0.022140503,-0.04534912,0.010696411,0.008605957,0.010948181,0.02671814,0.05810547,-0.010238647,0.00069761276,-0.015365601,0.012313843,0.04812622,-0.0110321045,0.0096206665,0.0010814667,0.003019333,-0.021362305,-0.013412476,-0.04953003,0.033477783,0.05908203,0.01864624,-0.012916565,-0.011871338,-0.005706787,0.008514404,0.03692627,-0.025558472,0.00043463707,-0.038635254,0.023864746,-0.014846802,0.011047363,0.013931274,0.036376953,-0.008911133,-0.045898438,-0.00111866,0.00020563602,-0.021774292,-0.052215576,-0.019805908,-0.06854248,0.004512787,-0.019805908,-0.018569946,-0.010192871,0.020629883,-0.017364502,-0.06518555,0.009010315,0.03503418,0.021469116,0.04144287,-0.022323608,0.039642334,0.0287323,-0.02331543,0.0018978119,0.030761719,-0.032104492,-0.017318726,-0.020217896,0.04031372,-0.011047363,-0.033325195,0.013694763,-0.013198853,0.021606445,-0.0102005005,0.011955261,-0.030776978,0.01449585,0.005908966,0.008964539,-0.0037708282,-0.024887085,0.05255127,-0.06185913,0.015792847,-0.007858276,-0.0036087036,-0.00983429,0.044036865,0.042938232,-0.03326416,-0.0027198792,0.00630188,0.014633179,0.04421997,-0.018203735,0.03186035,0.022079468,-0.0013008118,0.005153656,-0.006095886,-0.0010032654,-0.05987549,-0.029388428,0.039398193,0.002986908,-0.007133484,-0.011520386,0.0016222,0.010116577,-0.008178711,-0.005847931,-0.024169922,-0.0015554428,-0.01777649,0.015380859,0.007965088,0.020095825,0.003534317,0.027267456,0.035064697,0.029708862,0.0033245087,-0.018508911,0.016418457,0.037750244,0.010414124,-0.011680603,0.030960083,-0.00064849854,0.019454956,0.01876831,0.005634308,-0.020965576,-0.012916565,0.0065612793,-0.0042266846,0.0031337738,-0.01600647,0.011161804,-0.0009737015,-0.0049934387,-0.009613037,-0.0064582825,0.029663086,-0.027709961,-0.025634766,-0.004585266,0.0023765564,0.016967773,-0.0017595291,-0.0033226013,0.042297363,-0.015213013,0.062042236,0.010528564,0.0067100525,0.038391113,0.041168213,0.015930176,-0.021438599,0.017608643,-0.0070533752,-0.0050239563,0.017913818,-0.026153564,0.024841309,0.04498291,-0.018417358,0.032409668,-0.008544922,0.016708374,-0.003643036,0.02330017,-0.0069274902,-0.005706787,-0.025161743,0.049743652,-0.026901245,0.019470215,0.014450073,0.0017347336,-0.008255005,-0.010681152,-0.04269409,0.028656006,0.019805908,0.00043344498,0.026245117,-0.002603531,0.022460938,-0.028793335,-0.015853882,-0.015167236,-0.029846191,-0.033081055,0.0020275116,-0.0046157837,0.011856079,0.011978149,0.00000166893,-0.008354187,-0.020339966,0.028274536,-0.00034856796,0.020568848,-0.027816772,-0.02407837,-0.013580322,-0.025787354,-0.016235352,0.011329651,0.0087890625,0.024383545,0.025466919,-0.0049934387,0.03375244,0.002658844,-0.024642944,-0.017059326,-0.033966064,0.011833191,-0.026397705,-0.0075912476,-0.017913818,0.043518066,0.060028076,0.030380249,0.037841797,0.029388428,0.03869629,-0.0037727356,0.04135132,-0.025238037,0.0003926754,-0.0418396,0.030090332,0.0054359436,0.011993408,-0.027023315,-0.009269714,0.021331787,0.035217285,-0.014373779,0.017822266,0.059173584,0.013572693,-0.020385742,0.05026245,-0.0018281937,-0.012390137,-0.027954102,-0.015655518,0.07373047,0.032226562,0.035217285,0.028671265,0.0047454834,0.002664566,0.0047454834,-0.034088135,-0.015602112,0.05923462,-0.000767231,-0.014205933,-0.038238525,-0.0040245056,-0.002817154,-0.040893555,-0.0075645447,0.009559631,-0.011054993,0.00040555,-0.0013360977,-0.0071983337,0.0009007454,0.00466156,0.005596161,0.013092041,-0.03036499,0.0024967194,0.024047852,0.013648987,0.029342651,0.005355835,0.042907715,-0.025680542,-0.028137207,-0.012130737,0.03062439,0.0053367615,0.009742737,0.039611816,0.0068588257,0.027069092,0.04083252,-0.012954712,-0.005317688,0.026992798,-0.012718201,0.005207062,0.043762207,0.037963867,0.012184143,0.03768921,0.030532837,0.032958984,-0.047790527,0.019699097,-0.0012159348,0.016174316,-0.012718201,-0.01512146,0.0054626465,0.007446289,0.022003174,-0.01008606,-0.009284973,0.021697998,0.047851562,-0.0028476715,-0.0066184998,-0.00045728683,-0.0014019012,-0.003036499,0.0045776367,0.020751953,-0.033233643,0.016906738,0.028152466,0.025680542,-0.022979736,0.030181885,-0.017822266,-0.02532959,-0.0085372925,0.013191223,-0.02508545,0.018539429,-0.019088745,0.005695343,-0.040985107,0.014526367,0.0132751465,-0.008338928,0.0008506775,0.011947632,0.009674072,-0.0030155182,0.038970947,0.013374329,-0.001121521,0.0032081604,-0.008354187,0.0051574707,0.05279541,-0.009887695,0.013175964,-0.015365601,0.014770508,0.015068054,-0.02180481,-0.022598267,0.019485474,-0.007904053,-0.018295288,-0.0025634766,0.044647217,-0.002073288,0.048614502,-0.012046814,-0.008224487,0.01777649,0.029571533,0.019134521,-0.01927185,0.014328003,0.032714844,-0.017623901,0.040924072,0.047576904,0.0027618408,0.015792847,0.009468079,0.005844116,-0.009185791,-0.028457642,0.0011997223,-0.033599854,0.005203247,0.00046038628,0.024459839,-0.024154663,-0.041290283,0.020370483,-0.018554688,-0.03942871,-0.027664185,0.020202637,-0.012199402,0.025558472,0.042419434,0.029464722,-0.034698486,0.052642822,-0.0024700165,0.05770874,0.009178162,0.015777588,0.038635254,0.0335083,0.03640747,0.0028934479,0.0357666,-0.009315491,-0.0029850006,0.034088135,0.0065612793,0.016113281,0.001326561,-0.014846802,0.048431396,0.0038452148,0.034576416,-0.033111572,-0.002910614,-0.0050086975,0.0007596016,0.0006222725,-0.002948761,0.0009241104,0.023544312,0.051361084,-0.051849365,-0.019088745,-0.0368042,-0.0008993149,0.02684021,-0.021316528,0.024612427,0.009338379,-0.02909851,0.0078125,-0.010253906,-0.024032593,0.024154663,0.02961731,-0.024246216,-0.015914917,0.0023498535,0.024261475,-0.0048103333,0.035736084,0.016281128,-0.0004734993,0.013221741,0.049926758,-0.008300781,0.04537964,-0.005596161,0.0345459,0.034576416,-0.008659363,-0.0093688965,-0.001964569,0.016967773,-0.0064888,0.0023612976,0.042938232,0.008735657,-0.007896423,-0.0020370483,0.0053901672,-0.0011072159,0.018920898,-0.016830444,-0.005580902,0.0030269623,-0.0067100525,0.015792847,0.005744934,0.000647068,0.0011339188,0.0016002655,-0.017318726,0.016616821,0.020385742,0.05645752,-0.03942871,0.009269714,0.012336731,-0.019470215,-0.011802673,-0.013694763,0.008918762,-0.032806396,0.034851074,0.014823914,0.021514893,0.00068998337,-0.027313232,0.01676941,0.046691895,0.017333984,0.022521973,0.022415161,-0.009750366,0.009300232,0.0014686584,-0.0055122375,0.0027160645,0.010818481,-0.015655518,0.020858765,-0.016494751,-0.015129089,0.030700684,0.0023784637,0.010673523,0.008132935,0.018356323,0.044769287,-0.0019226074,-0.004550934,-0.0069885254,-0.006225586,-0.008148193,-0.0072364807,-0.012069702,0.018737793,0.041381836,-0.0054779053,-0.0038776398,0.024536133,0.011291504,0.025665283,0.024307251,0.031433105,0.03768921,0.026046753,-0.008491516,0.0039405823,0.022140503,-0.016174316,-0.03050232,0.02178955,-0.034332275,-0.035369873,0.024749756,0.00667572,-0.014907837,-0.025634766,-0.021560669,-0.004840851,-0.0073776245,-0.005783081,-0.0018358231,0.013832092,-0.024093628,-0.010574341,-0.009628296,-0.0072135925,-0.029373169,-0.017242432,-0.008369446,-0.011276245,-0.04425049,-0.010757446,-0.010147095,0.0102005005,-0.022781372,0.0064964294,-0.011100769,0.013809204,-0.020904541,-0.0025730133,-0.0066108704,0.042877197,-0.007926941,0.008682251,0.006580353,-0.010566711,-0.012832642,-0.009292603,-0.001162529,-0.01852417,0.042816162,-0.008712769,0.04776001,-0.010818481,-0.018966675,0.004688263,-0.018005371,-0.025039673,0.013053894,-0.015090942,-0.032348633,0.020126343,0.018966675,0.010948181,0.015808105,0.062042236,-0.011123657,-0.029174805,0.011421204,0.040496826,0.018692017,0.041015625,-0.0040283203,0.0033626556,-0.01802063,0.0036182404,-0.015022278,-0.0015506744,-0.016967773,-0.00016736984,-0.0036525726,0.02003479,0.011642456,-0.022399902,-0.018463135,0.023757935,0.028945923,-0.015640259,0.047790527,0.016708374,0.0024414062,-0.019851685,-0.0026187897,-0.00050878525,0.037353516,0.020370483,0.029067993,-0.023849487,0.009635925,-0.022613525,0.014953613,0.0029296875,-0.011489868,-0.029785156,-0.011962891,-0.02746582,-0.0028915405,-0.0127334595,0.014732361,-0.008598328,0.026443481,-0.0005121231,-0.029052734,-0.00096416473,0.02494812,0.010223389,-0.0011072159,-0.0066490173,0.00856781,0.022079468,-0.02268982,0.026519775,-0.051849365,-0.034301758,-0.006134033,-0.013412476,0.029067993,-0.0035991669,-0.0053253174,0.0118637085,-0.0022945404,0.0046195984,-0.016708374,0.033691406,-0.012702942,-0.003479004,0.01309967,0.030456543,-0.0073165894,0.016555786,0.007801056,-0.014427185,0.028533936,-0.003534317,0.018569946,0.020050049,0.049957275,0.014411926,0.01096344,0.01979065,-0.0006198883,0.0004954338,-0.007633209,-0.0046920776,-0.00073337555,-0.00045108795,0.014335632,-0.015792847,-0.03302002,0.0023212433,-0.014030457,-0.023040771,0.018478394,-0.004470825,0.040863037,-0.019714355,0.040374756,-0.02507019,-0.014137268,-0.016143799,0.016983032,-0.028549194,0.004371643,0.020141602,-0.0012426376,-0.0011138916,-0.010383606,-0.0059547424,-0.014625549,0.0022888184,-0.0070533752,-0.0064086914,0.0029754639,-0.003358841,0.018585205,0.03366089,0.014137268,-0.008079529,0.027908325,0.0140686035,0.021377563,-0.0044555664,0.032562256,0.0006456375,-0.0138168335,0.007205963,-0.0063171387,0.002401352,0.01109314,-0.0052490234,0.016998291,-0.023025513,0.0061454773,-0.008644104,0.0569458,-0.02204895,0.016174316,-0.022262573,0.009567261,-0.026000977,0.010536194,-0.042816162,0.010116577,0.02986145,-0.0143966675,0.012962341,0.009895325,-0.021652222,0.025726318,0.0368042,-0.0005187988,-0.031051636,-0.010261536,-0.0012722015,0.01776123,-0.002313614,-0.0055732727,-0.03366089,-0.016326904,-0.0023231506,0.0027046204,-0.0088272095,-0.0042152405,0.0008120537,0.013122559,0.009712219,-0.008483887,0.038513184,-0.02229309,-0.008224487,-0.017288208,0.014389038,0.033325195,0.03262329,-0.023330688,0.04623413,0.0028743744,-0.012702942,0.06512451,-0.022705078,0.0012483597,-0.027755737,-0.0045928955,-0.024139404,-0.018554688,0.0060539246,-0.008712769],"createdAt":"2026-04-18T18:55:40.855Z","updatedAt":"2026-04-25T13:03:04.195Z","lastSeenAt":"2026-04-25T13:03:04.195Z","tsv":"'/api':155 '/api/v1/stripe/invoices/140':69 '/docs':154 '/pricing':156 '/readme':158 '0.02':10,24,102 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':96 '20000':105 '6':109 'Base network API' 'USDC micropayment API' 'accept':139 'access':36,122 'across':55 'actual':190 'advertis':113 'ai/ml':60 'analyt':59 'api':35,54,115 'appear':70 'application/json':144 'attach':125 'base':8,22,91,106 'beyond':146 'bodi':180 'broader':47 'caller':123 'categori':56 'connect':164 'contract':95 'cost':100 'data':58,77,186 'decim':110 'descript':183 'detail':171 'document':85,145 'endpoint':6,20,30,68,138,189 'exact':80 'exampl':178 'extrem':151 'finance/web3':62 'gate':3,17 'header':130 'includ':57 'infer':61 'infrastructur':64 'instant':121 'invoic':5,19,76,188 'json-response' 'key':116 'land':148 'limit':119 'lowpaymentfee' 'lowpaymentfee.com':32 'maximum':99 'network':92 'no-api-key' 'offer':49 'openapi':175 'page':149,159 'part':44 'pay':9,23,51 'pay-per-call API' 'pay-per-request':50 'payload':82 'payment':40,86,129,135 'per':11,25,52,103 'platform':48,112 'post':140 'premium':34 'prompt':166 'proof':136 'protocol':41 'provid':33 'rate':118 'relat':73 'render':161 'request':12,26,53,104,141 'request/response':179 'respons':81 'return':143,191 'settl':88 'simpli':124 'spars':152 'spec':176 'specif':67 'stripe':4,18,75 'stripe invoice API' 'stripe-invoices' 'technic':170 'though':78 'unit':107 'usdc':14,28,94 'usdc-base-network' 'use':93 'util':65 'valid':133 'via':37 'wallet':165 'x':128 'x-payment':127 'x402':2,16,39,134 'x402 paid endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"ce2f33fb-2916-4b12-bec0-673b4819dff9","listingId":"dcf98097-d05a-4831-8d78-a96779695d45","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/140","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:55:40.855Z"}],"sources":[{"listingId":"dcf98097-d05a-4831-8d78-a96779695d45","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/invoices/140","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:55:40.855Z","lastSeenAt":"2026-04-25T13:03:04.195Z"}],"details":{"listingId":"dcf98097-d05a-4831-8d78-a96779695d45","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/140 \\\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/140"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/invoices/140"}],"useCases":["Retrieving Stripe invoice data without traditional API key management","Programmatic access to invoice information via crypto micropayment","Agent-driven financial data retrieval with per-call settlement"],"bestFor":["Developers wanting keyless API access paid per request","AI agents that can settle x402 payments on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed documentation or guaranteed SLAs","High-volume batch processing where per-call fees add up","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:51.867Z"},"updatedAt":"2026-04-25T13:03:04.195Z"}}