{"id":"c97a3108-951c-4c95-9451-8e395e82379d","shortId":"H6GNTL","kind":"x402","title":"Pay-per-call OpenAI token endpoint on Base via x402 — $0.02 per request in USDC.","tagline":"Pay-per-call OpenAI token endpoint on Base via x402 — $0.02 per request in USDC.","description":"lowpaymentfee.com hosts a collection of pay-per-request API endpoints settled on the Base network using the x402 protocol. This specific endpoint (`/api/v1/integrations/openai/token`) is listed as \"Premium API Access\" and returns an x402 challenge requesting payment in USDC (contract 0x8335…2913 on Base). The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD — consistent with the site-wide flat pricing of $0.02 per request.\n\nThe provider advertises a broad catalog of endpoints spanning data & analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing with no API keys, no rate limits, and no minimum commitments. Payment is handled entirely through the x402 payment header on the Base L2 network.\n\nDocumentation is extremely sparse. The site's /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples. The exact behavior of the `/integrations/openai/token` endpoint — what it accepts as input and what it returns — is not documented anywhere in the crawled material. The name suggests it may proxy or provide access tokens for OpenAI services, but this is speculative.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","openai-integration","no-api-key"],"categories":["llm","infrastructure"],"synonyms":["openai proxy","openai token","pay-per-call API","x402 API","USDC API payment","Base network API","micropayment API"],"warnings":["No API documentation, OpenAPI spec, or usage examples available anywhere on the site","The exact function of /api/v1/integrations/openai/token is undocumented — the name suggests OpenAI integration but this is unverified","All non-root pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no content","No request or response schema is provided; callers have no way to know what payload to send"],"endpointUrl":"https://lowpaymentfee.com/api/v1/integrations/openai/token","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/integrations/openai/token","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, confirming pricing and network. However, there is zero documentation on request/response schemas, no OpenAPI spec, and no examples. The purpose of the endpoint ('Premium API Access') is vague and must be guessed from the URL path. This is 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":"2026-04-21T22:08:21.419Z","embedding":[-0.02432251,-0.043914795,0.049072266,-0.0040130615,-0.0018262863,-0.037353516,-0.003780365,0.037322998,0.06689453,-0.07128906,0.02178955,-0.06524658,-0.026397705,-0.041534424,-0.022750854,-0.01335144,-0.014549255,-0.0056915283,-0.03842163,0.011329651,0.013076782,-0.004535675,-0.03894043,0.02949524,-0.008903503,-0.0390625,-0.008514404,-0.012062073,-0.035583496,-0.024291992,0.04815674,-0.01940918,-0.026473999,-0.0031642914,-0.019973755,0.007896423,0.0026988983,0.02027893,0.049224854,-0.008049011,0.0033626556,-0.03869629,-0.01171875,0.0129776,-0.05105591,-0.023452759,0.0041275024,-0.042938232,-0.011360168,0.0039100647,-0.029785156,0.00674057,0.00283432,-0.018096924,0.006252289,0.0234375,-0.004764557,0.001121521,0.011978149,0.013092041,-0.018600464,-0.05215454,-0.013870239,-0.012176514,0.00015544891,0.04196167,-0.030059814,0.051361084,-0.000767231,0.056671143,0.035125732,0.049194336,0.015777588,0.018600464,-0.0018014908,-0.011878967,-0.020523071,0.08099365,-0.019973755,-0.03616333,-0.017425537,-0.02053833,-0.055511475,-0.015609741,0.008872986,-0.051849365,-0.026275635,0.021347046,-0.018966675,0.013252258,-0.08325195,-0.011978149,-0.004081726,-0.003364563,0.0046424866,-0.004917145,-0.025527954,0.013877869,0.003353119,0.017684937,-0.02230835,-0.04257202,0.01411438,0.02494812,0.02558899,0.051330566,0.03930664,0.013969421,0.009529114,-0.009147644,-0.060913086,0.024841309,-0.01751709,-0.0035934448,-0.0025787354,-0.00016152859,-0.03366089,0.026550293,-0.030014038,0.0042152405,-0.03869629,0.04537964,0.015899658,0.014511108,0.011177063,-0.052459717,-0.0017957687,0.011192322,-0.021011353,-0.022445679,0.015388489,0.028656006,0.016815186,-0.015289307,-0.011245728,-0.02456665,-0.015388489,-0.0107421875,-0.05038452,-0.04034424,0.028701782,-0.034973145,0.008071899,0.032226562,-0.109680176,-0.020202637,-0.043884277,-0.017868042,-0.03488159,-0.0012969971,0.0020389557,0.025634766,0.013519287,-0.00982666,-0.034057617,-0.038269043,-0.02204895,0.04257202,0.006706238,0.045043945,-0.026153564,0.050628662,0.030380249,0.019256592,0.021224976,0.046875,-0.0023460388,-0.057159424,-0.08605957,-0.02798462,0.009292603,-0.008384705,-0.038269043,0.0076560974,-0.016616821,-0.07672119,-0.018676758,0.011894226,-0.0041122437,-0.048614502,-0.009811401,-0.02798462,0.011352539,-0.0066566467,-0.05230713,-0.023361206,-0.045837402,0.04574585,0.016036987,0.039367676,0.031555176,-0.008224487,0.05908203,0.01828003,0.0013179779,-0.024810791,0.015655518,-0.035308838,0.032348633,0.0005197525,0.022827148,-0.016799927,0.02973938,0.048187256,0.016708374,-0.03353882,-0.01977539,-0.058654785,-0.032409668,-0.0022068024,0.02268982,0.0034389496,0.005760193,0.00504303,-0.033325195,-0.035980225,0.0027675629,0.013679504,-0.010643005,0.058898926,0.020263672,0.014595032,0.006587982,0.009681702,-0.041503906,0.036132812,0.013259888,0.0065078735,0.00390625,-0.03881836,-0.0018081665,0.05126953,-0.02494812,0.0038318634,-0.014625549,0.026397705,-0.0044288635,-0.010902405,0.008705139,-0.051208496,-0.013023376,-0.048034668,-0.003780365,0.0362854,-0.0026111603,-0.034210205,-0.018356323,-0.05795288,0.057006836,0.034606934,0.03274536,-0.0007443428,0.012893677,-0.013420105,-0.015686035,-0.074645996,0.040771484,0.07312012,-0.033233643,-0.019592285,0.022262573,-0.0017337799,-0.021347046,-0.005554199,-0.017349243,-0.03668213,-0.028747559,0.038391113,-0.04864502,-0.0055656433,0.02142334,0.030212402,0.029220581,-0.026473999,-0.056152344,-0.027023315,-0.008346558,0.002922058,-0.038116455,-0.007675171,-0.0038776398,0.016571045,0.039154053,-0.0009589195,0.024429321,-0.03201294,0.00029611588,0.0011005402,0.005130768,-0.0095825195,-0.03515625,0.029846191,0.008323669,-0.057891846,0.008644104,-0.015151978,0.07507324,-0.032592773,0.029663086,-0.010047913,0.02067566,0.037994385,-0.00522995,-0.06652832,0.029022217,0.005279541,0.03845215,0.07495117,0.014007568,-0.03050232,-0.004600525,0.060516357,-0.030685425,-0.0025863647,0.012718201,0.019348145,0.047821045,0.012878418,-0.03616333,-0.040893555,-0.006706238,-0.018463135,0.019729614,-0.00014066696,0.029937744,-0.0021133423,0.020309448,-0.018203735,-0.0069847107,-0.022109985,0.019500732,-0.0129776,-0.0039978027,-0.010932922,-0.015365601,0.032562256,0.02357483,-0.02218628,0.009490967,0.044128418,0.010116577,-0.011001587,-0.023712158,-0.01789856,-0.026351929,-0.0020599365,0.019836426,0.012779236,0.020706177,0.051574707,-0.02671814,0.0026073456,0.024353027,0.022506714,0.017120361,0.0015249252,0.004550934,-0.079711914,-0.022964478,-0.022613525,-0.04019165,0.034484863,0.022598267,-0.0049858093,0.043029785,-0.01687622,-0.0041923523,-0.015167236,-0.009063721,-0.06085205,-0.010612488,0.045410156,-0.025482178,-0.031463623,-0.005558014,0.0050849915,0.0054359436,0.021118164,0.022460938,0.015914917,0.070617676,0.026382446,-0.010192871,0.038146973,0.001540184,0.004688263,0.014465332,-0.030380249,-0.020492554,-0.013374329,0.027740479,-0.04119873,-0.033447266,-0.04119873,0.058288574,0.044128418,0.06530762,0.016326904,0.0072135925,0.050476074,0.00340271,0.012573242,-0.036621094,-0.018661499,-0.028182983,-0.035339355,0.061798096,0.0017337799,-0.014549255,-0.007572174,0.045532227,-0.009010315,0.028533936,-0.0124435425,0.046203613,0.006416321,-0.007083893,0.011405945,0.0026187897,0.0637207,0.049346924,-0.01828003,0.015823364,-0.004081726,-0.0680542,0.018875122,0.03753662,0.0010995865,-0.011390686,-0.06451416,-0.02003479,0.0143966675,-0.0132751465,-0.06890869,-0.016525269,0.008979797,0.015602112,0.03491211,-0.013114929,-0.008255005,0.0039787292,-0.027938843,-0.0597229,-0.010520935,-0.070495605,-0.004814148,0.03353882,-0.035888672,0.014984131,0.0113220215,-0.015914917,-0.022918701,0.03353882,0.04525757,0.0093688965,-0.0574646,0.019973755,0.013000488,-0.005847931,0.02406311,0.053344727,-0.00093078613,0.015541077,0.033172607,0.029663086,-0.018188477,-0.056671143,0.02130127,-0.03967285,0.0039787292,0.014274597,-0.018295288,-0.0046958923,-0.035095215,-0.019729614,-0.033294678,0.029251099,-0.041137695,-0.026245117,0.014129639,-0.01285553,-0.020233154,-0.07336426,-0.022125244,0.01285553,0.059173584,0.013175964,-0.000031530857,-0.046417236,-0.010955811,0.019042969,-0.0007286072,0.0075645447,-0.012840271,0.0014028549,-0.01512146,-0.031982422,0.0047340393,-0.03878784,0.00907135,-0.029067993,-0.010314941,0.022583008,0.04034424,0.018005371,0.006134033,0.012702942,0.010398865,-0.016235352,0.0039787292,-0.016036987,0.030090332,0.009277344,-0.013473511,-0.04763794,0.02909851,0.014732361,0.037994385,-0.015609741,-0.010345459,-0.0028190613,0.0061187744,0.010787964,-0.022827148,0.002828598,-0.003047943,-0.047332764,-0.04510498,0.040283203,-0.0020942688,0.036010742,0.014007568,0.013092041,0.010673523,-0.028945923,0.015686035,0.035583496,-0.0053520203,-0.02798462,-0.014297485,-0.056427002,-0.003452301,-0.012573242,-0.008407593,0.013969421,-0.015281677,-0.00022363663,-0.006286621,-0.008331299,0.034973145,0.01625061,0.013298035,0.009887695,-0.0066604614,0.028182983,0.027359009,-0.0017690659,-0.055419922,0.028778076,0.0064888,-0.004421234,-0.015266418,0.045440674,0.025253296,0.0006723404,-0.0014638901,-0.004875183,-0.013931274,-0.012878418,-0.007205963,-0.0023059845,0.008255005,0.0004503727,-0.027511597,0.007255554,0.0074920654,-0.016098022,-0.009849548,0.019882202,0.028701782,-0.033813477,0.014953613,0.013252258,0.05581665,-0.023269653,0.0058021545,-0.015449524,0.050323486,0.037475586,0.03378296,-0.0007119179,0.015930176,-0.006538391,-0.0035877228,-0.015640259,-0.018341064,0.016311646,0.001405716,0.037261963,0.018341064,0.014587402,-0.024368286,-0.027954102,0.012130737,-0.01625061,-0.024291992,0.014450073,0.035614014,0.02357483,-0.004764557,0.028015137,-0.0037670135,-0.004753113,-0.0068359375,0.0052871704,0.02885437,-0.045684814,0.0052337646,0.027832031,0.023834229,0.027664185,-0.03186035,-0.016586304,0.018630981,0.0011701584,-0.021224976,-0.037475586,-0.025360107,0.001121521,0.041656494,-0.0063667297,0.035980225,0.031707764,-0.012329102,0.0018615723,0.020065308,0.0010957718,-0.022750854,-0.008934021,-0.04446411,-0.017166138,-0.005645752,0.008010864,-0.028457642,0.0071754456,-0.00374794,-0.036865234,-0.00137043,-0.021713257,-0.0074043274,-0.0056037903,0.008338928,0.026992798,-0.0060691833,0.010719299,-0.014465332,-0.016403198,-0.015716553,0.021148682,0.023895264,-0.045959473,-0.0006155968,-0.02406311,0.02192688,-0.0105896,0.020568848,0.013549805,0.031799316,-0.007007599,0.004257202,-0.05718994,0.047668457,-0.04058838,0.021087646,0.025985718,-0.023223877,-0.0039711,-0.007827759,-0.024429321,0.032440186,-0.030166626,-0.0005054474,-0.028335571,-0.04095459,-0.0040626526,-0.04321289,0.03668213,0.040863037,0.03326416,-0.025634766,0.00075912476,-0.0004439354,0.01423645,-0.016677856,0.004722595,-0.010116577,0.021759033,0.03036499,-0.0013036728,-0.024353027,-0.01689148,-0.007423401,0.0025787354,-0.05429077,-0.028015137,-0.008682251,0.026779175,0.0054893494,-0.005004883,-0.029174805,-0.025909424,0.00315094,-0.030380249,0.014793396,0.012214661,0.022262573,0.023117065,-0.013969421,-0.00674057,0.0014953613,-0.027557373,0.0289917,0.012145996,0.013580322,-0.04876709,0.0020523071,0.031982422,0.019500732,-0.021270752,0.00005275011,-0.0013284683,-0.02822876,-0.050628662,-0.0016393661,-0.0025730133,-0.015403748,-0.020767212,-0.010910034,-0.07092285,-0.003458023,-0.0032653809,0.003004074,0.020721436,0.017364502,0.014205933,-0.010627747,0.020751953,0.0099105835,-0.0034389496,-0.036193848,0.012763977,0.008712769,0.005405426,0.030654907,0.04623413,0.010284424,-0.012001038,-0.0073661804,0.0027542114,0.011512756,-0.010124207,-0.0038204193,-0.017623901,0.017333984,-0.008842468,-0.019332886,-0.03945923,0.0025348663,0.087646484,0.012123108,-0.006427765,-0.011039734,-0.010643005,0.01940918,0.03100586,-0.04043579,-0.003528595,-0.026153564,0.029785156,-0.05041504,0.0099487305,0.00083494186,0.020645142,-0.011276245,-0.037200928,-0.011184692,-0.011451721,0.0047912598,-0.05810547,-0.013023376,-0.07623291,0.004425049,-0.0032787323,-0.030181885,0.0038318634,0.028030396,-0.018661499,-0.07977295,0.0045166016,0.04437256,0.01171875,0.024642944,0.004436493,0.024337769,0.014709473,-0.029373169,0.004825592,0.029586792,-0.025512695,-0.020950317,-0.011985779,0.0132751465,-0.0076141357,-0.011947632,0.024002075,0.0070343018,0.012329102,-0.009208679,0.0052719116,0.01247406,0.027435303,-0.017745972,0.010215759,-0.0016222,0.0006403923,0.022613525,-0.058746338,0.01399231,0.013916016,0.008651733,0.026626587,0.03552246,0.053497314,-0.03982544,-0.001376152,0.0005927086,0.016555786,0.042938232,-0.02961731,0.0546875,0.018356323,-0.018859863,-0.010238647,-0.0013427734,-0.025039673,-0.032928467,-0.028335571,0.029327393,-0.0017299652,0.0076026917,-0.015167236,-0.0040893555,0.001490593,0.010917664,0.010429382,-0.010498047,-0.022384644,-0.02746582,0.00043296814,-0.017318726,0.0027675629,-0.031951904,0.02017212,0.035827637,0.03250122,-0.011169434,-0.0067367554,-0.0072250366,0.01727295,-0.0067596436,0.010131836,0.0259552,-0.0048942566,0.009429932,0.014846802,0.01828003,-0.039031982,0.0048446655,-0.034118652,-0.002603531,0.011787415,-0.012664795,-0.021652222,-0.018218994,0.0074424744,-0.02558899,-0.022369385,-0.016036987,-0.030288696,-0.016082764,-0.01373291,-0.009048462,0.022384644,-0.011558533,0.0035686493,0.004508972,0.008995056,0.04058838,0.002008438,-0.008323669,0.036102295,0.041503906,0.029464722,-0.038970947,-0.009429932,-0.0042915344,-0.0009689331,0.0033683777,-0.027511597,-0.005657196,0.032592773,-0.0049057007,0.015548706,0.007888794,0.019577026,-0.001742363,-0.001964569,0.0008382797,0.0036716461,-0.011390686,0.04727173,-0.05343628,0.014251709,0.0027828217,0.0037021637,0.0025577545,-0.028900146,-0.032165527,0.0052833557,0.0018777847,0.0014848709,0.026626587,0.0018444061,0.034484863,-0.008560181,-0.019042969,0.012794495,-0.031799316,-0.028335571,0.027740479,-0.012664795,-0.0069770813,0.019363403,-0.020950317,0.015609741,-0.042816162,0.004257202,0.0066184998,0.0023460388,-0.014175415,-0.012298584,-0.006729126,-0.0025024414,-0.020812988,-0.004257202,0.0017642975,0.05718994,0.033050537,0.028579712,0.04107666,0.029510498,0.010475159,-0.042633057,-0.018127441,0.0034179688,-0.015602112,0.0152282715,-0.00043225288,0.048034668,0.02015686,-0.0025043488,0.03488159,0.024810791,0.03265381,-0.015655518,0.023880005,-0.004310608,0.0090789795,-0.009094238,0.02331543,-0.01612854,0.04849243,-0.04647827,0.010444641,0.027267456,0.02607727,-0.012466431,0.03475952,0.049224854,0.012634277,-0.012214661,0.021514893,-0.0132369995,0.003850937,-0.003353119,-0.022415161,0.054626465,0.015602112,0.04647827,0.036102295,0.012123108,-0.008010864,-0.009712219,-0.040496826,-0.043701172,0.060913086,0.015640259,-0.015914917,-0.014663696,-0.01727295,0.012901306,-0.04660034,-0.023498535,0.01309967,-0.010055542,0.0011453629,-0.0065193176,-0.014823914,-0.03353882,0.025604248,0.01158905,0.01007843,-0.009994507,0.02456665,0.03353882,0.008483887,0.022781372,0.0032634735,0.030258179,-0.016906738,-0.02822876,0.023483276,0.017822266,-0.0051002502,-0.016601562,0.018676758,0.009918213,0.027709961,0.048065186,-0.019683838,-0.0022506714,0.025115967,0.007896423,-0.0063209534,0.07147217,0.021560669,0.017318726,0.04425049,0.020996094,0.037902832,-0.027786255,0.014266968,-0.00045228004,0.032470703,-0.009788513,-0.012107849,0.0039863586,-0.008972168,0.022705078,-0.010353088,-0.011856079,0.005874634,0.01448822,0.006187439,-0.012763977,-0.006210327,-0.004600525,-0.023330688,0.002035141,0.009849548,0.0015220642,0.022323608,0.021896362,0.04446411,-0.031585693,0.02281189,-0.008399963,-0.019088745,-0.012954712,0.020751953,-0.034729004,0.010345459,0.002565384,0.021621704,-0.036376953,0.0154418945,0.039031982,-0.0037136078,0.021209717,0.01625061,0.007858276,0.014945984,0.040374756,0.021240234,-0.008583069,-0.0025787354,-0.01007843,0.027496338,0.03768921,-0.005054474,0.0005812645,-0.009216309,0.012054443,0.020767212,-0.016052246,0.009727478,-0.00030875206,-0.02078247,-0.022003174,0.015022278,0.030761719,0.022140503,0.034851074,-0.034301758,-0.029846191,0.02218628,0.02658081,-0.0057678223,0.003622055,-0.005001068,0.02482605,-0.003736496,0.043304443,0.03668213,0.005268097,0.028060913,-0.015365601,-0.008811951,0.0042648315,-0.0013217926,0.02998352,-0.022705078,0.0011377335,0.0032043457,0.0284729,-0.025222778,-0.048583984,0.017028809,-0.014907837,-0.01361084,-0.028747559,0.027359009,0.00074768066,0.0236969,0.028701782,0.040740967,-0.028533936,0.05166626,-0.013023376,0.037139893,-0.0016965866,-0.0045700073,0.056427002,0.028213501,0.046813965,0.01499176,0.009963989,-0.03564453,0.012413025,0.033355713,0.020568848,-0.004333496,0.0068740845,0.008003235,0.021316528,0.013519287,0.037017822,-0.019180298,-0.0009851456,0.006954193,-0.0014686584,0.01586914,-0.0037326813,0.0048713684,0.018844604,0.05734253,-0.03741455,-0.009490967,-0.025466919,-0.018432617,0.031799316,-0.003993988,-0.0069885254,-0.0044517517,-0.025405884,-0.009857178,-0.03488159,-0.0044288635,0.0132751465,0.016342163,-0.04547119,0.00051403046,-0.0038871765,0.010505676,-0.02571106,0.021255493,0.0234375,0.014564514,0.008285522,0.03857422,-0.010498047,0.01927185,-0.015365601,0.013015747,0.025238037,0.0031356812,-0.017501831,-0.0021400452,0.0007162094,-0.015106201,0.021438599,0.023513794,-0.011749268,-0.00023984909,-0.0072746277,-0.0077323914,0.0076942444,-0.00051927567,-0.015716553,0.0031089783,-0.020965576,-0.0037612915,-0.0060043335,0.017944336,0.0025691986,0.01411438,-0.02180481,-0.022125244,0.019836426,0.03994751,0.013290405,-0.030380249,-0.019058228,0.012565613,0.019805908,-0.022369385,-0.0035572052,-0.0053215027,-0.013496399,0.0107803345,0.019348145,0.002029419,0.0031032562,-0.023712158,0.0050582886,0.017745972,0.012535095,0.020935059,0.008239746,-0.012741089,0.0015802383,-0.014587402,-0.016189575,-0.0015954971,0.0010204315,0.021530151,0.033233643,0.0044670105,-0.014076233,0.0446167,-0.008651733,0.0132369995,0.011360168,-0.0012521744,0.021865845,-0.022659302,-0.016708374,-0.0074424744,0.01576233,-0.011054993,-0.012367249,-0.0032157898,0.03387451,0.05923462,-0.0158844,-0.01626587,0.034454346,0.023208618,0.015327454,0.030776978,-0.012557983,0.048034668,0.033813477,-0.022659302,-0.01423645,0.0077438354,0.0016050339,-0.016113281,0.01651001,-0.023101807,-0.0048942566,0.030303955,0.008453369,0.0029010773,-0.026306152,-0.014335632,-0.005584717,-0.015991211,0.0053901672,-0.018463135,0.023864746,-0.019638062,-0.030731201,0.009208679,-0.036499023,-0.046295166,-0.017105103,-0.0017299652,-0.012779236,-0.053253174,-0.0039634705,-0.012702942,0.012023926,-0.010566711,0.0027179718,-0.019546509,0.029067993,-0.00856781,-0.0067977905,-0.0066604614,0.014709473,0.019454956,-0.0059051514,0.024414062,-0.01927185,-0.022994995,-0.0040283203,-0.00051641464,-0.013580322,0.021102905,0.0067863464,0.029174805,0.022201538,0.003993988,0.011695862,-0.007156372,-0.013572693,-0.009887695,-0.018157959,-0.027862549,0.013252258,0.0107803345,-0.010940552,-0.012054443,0.02758789,-0.023864746,-0.02420044,0.0059661865,0.039031982,0.0016899109,0.020874023,-0.010025024,0.011360168,-0.020568848,0.012992859,-0.027542114,0.019485474,0.00630188,-0.004386902,0.0050849915,-0.002243042,0.028823853,-0.026031494,0.0045661926,0.017501831,0.008911133,-0.015838623,0.027435303,0.013580322,-0.0014724731,-0.01802063,-0.0030841827,0.0063476562,0.03125,0.012428284,0.006313324,0.004638672,0.005794525,-0.009399414,0.0007133484,0.014595032,-0.022964478,-0.037902832,-0.006011963,-0.036865234,0.017486572,0.008934021,-0.0118637085,-0.0019016266,0.0022716522,-0.01977539,-0.04208374,-0.0146865845,0.017089844,0.010810852,-0.016189575,-0.0073623657,0.010368347,0.01828003,-0.032165527,-0.009086609,-0.06060791,-0.028427124,-0.016357422,0.0010519028,0.011993408,0.018218994,-0.003194809,0.008003235,0.00019967556,-0.0018863678,-0.023422241,0.022994995,-0.012840271,-0.0035076141,0.018127441,0.02456665,-0.013679504,0.009712219,-0.0051345825,0.0043411255,0.0146865845,-0.0046653748,0.016082764,-0.012565613,0.03930664,-0.009727478,-0.0013055801,0.037750244,0.019363403,0.008384705,-0.025604248,0.0014867783,-0.0019035339,-0.0064468384,0.034698486,-0.016174316,-0.028625488,0.010269165,-0.017166138,-0.020614624,-0.0036582947,0.022064209,0.040283203,-0.017929077,0.03656006,-0.0026855469,-0.027938843,0.012306213,0.013580322,-0.016418457,0.014129639,0.039123535,-0.009124756,0.003955841,-0.0041122437,-0.011993408,-0.031799316,-0.0048294067,0.008659363,-0.011291504,-0.008453369,0.034576416,0.013916016,0.048553467,-0.017501831,0.024383545,0.022979736,0.012008667,0.021148682,-0.0062942505,0.042144775,0.002231598,-0.028656006,0.018127441,0.004245758,-0.023406982,0.007896423,0.0028972626,0.00756073,-0.0345459,0.015541077,0.007575989,0.028671265,-0.016830444,-0.011001587,-0.030090332,-0.00008994341,-0.02670288,-0.011260986,-0.024993896,0.0036563873,0.03656006,-0.0063056946,0.015670776,-0.014335632,-0.020202637,0.013931274,0.041656494,-0.00894165,-0.03048706,-0.01474762,0.024337769,-0.0038719177,0.010009766,-0.005619049,-0.016921997,-0.024551392,-0.0014333725,0.0002925396,-0.004142761,-0.012229919,0.009284973,-0.003408432,-0.009284973,-0.009529114,0.014312744,-0.0093688965,-0.004611969,-0.003288269,-0.004219055,0.045288086,0.030807495,-0.008476257,0.020309448,0.015853882,-0.030044556,0.07330322,-0.02607727,0.019485474,-0.017288208,0.018432617,-0.039276123,-0.01058197,-0.028259277,0.005706787],"createdAt":"2026-04-21T18:32:23.248Z","updatedAt":"2026-04-22T15:03:02.677Z","lastSeenAt":"2026-04-22T15:03:02.677Z","tsv":"'/api':182 '/api/v1/integrations/openai/token':56 '/integrations/openai/token':217 '/pricing':183 '/readme':185 '/request':148 '0.02':12,28,94,105,147 '000':85 '0x8335':73 '20':84 '2913':74 '6':90 'Base network API' 'USDC API payment' 'accept':221 'access':62,244 'addit':196 'advertis':110 'ai/ml':119 'amount':79 'analysi':121 'analyt':118 'anywher':231 'api':42,61,152 'base':9,25,47,76,86,172 'base-network' 'behavior':214 'broad':112 'call':4,20,82 'catalog':113 'challeng':67 'classif':123 'collect':36 'commit':160 'connect':191 'consist':96 'contract':72 'convers':140 'crawl':234 'data':117 'decim':91 'detail':198 'document':175,207,230 'embed':124 'endpoint':7,23,43,55,115,143,218 'entir':164 'equal':93 'estim':134 'exact':213 'exampl':211 'exchang':129 'extrem':177 'feed':128 'financ':125 'flat':102 'gas':133 'generat':141 'geocod':138 'handl':163 'header':169 'host':34 'infrastructur':136 'input':223 'key':153 'l2':173 'limit':156 'list':58 'lowpaymentfee.com':33 'materi':235 'maximum':78 'may':240 'micropayment API' 'minimum':159 'name':237 'network':48,174 'no-api-key' 'openai':5,21,247 'openai proxy' 'openai token' 'openai-integration' 'openapi':202 'page':186 'pay':2,18,39 'pay-per-cal':1,17 'pay-per-call API' 'pay-per-request':38 'payment':69,161,168 'per':3,13,19,29,40,81,106 'premium':60 'price':103,127,149 'prompt':193 'protocol':52 'provid':109,243 'proxi':241 'quot':132 'rate':130,155 'render':188 'request':14,30,41,68,107 'request/response':205 'requir':80 'return':64,227 'schema':206 'sentiment':120 'servic':248 'settl':44 'share':144 'site':100,180 'site-wid':99 'span':116 'spars':178 'spec':203 'specif':54 'specul':252 'suggest':238 'summar':122 'technic':197 'token':6,22,131,245 'unit':87 'usag':210 'usd':95 'usdc':16,32,71,89 'usdc-settlement' 'use':49 'util':137 'valid':139 'via':10,26 'wallet':192 'web3':126 'wide':101 'x402':11,27,51,66,167 'x402 API' 'x402-payment'","prices":[{"id":"beb865c8-2861-4f0d-9728-52a9c22a2160","listingId":"c97a3108-951c-4c95-9451-8e395e82379d","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/integrations/openai/token","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:23.248Z"}],"sources":[{"listingId":"c97a3108-951c-4c95-9451-8e395e82379d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/integrations/openai/token","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:23.248Z","lastSeenAt":"2026-04-22T15:03:02.677Z"}],"details":{"listingId":"c97a3108-951c-4c95-9451-8e395e82379d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/integrations/openai/token \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns an x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/integrations/openai/token"},{"claim":"Site-wide pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/integrations/openai/token"}],"useCases":["Agents needing on-demand OpenAI access without managing API keys or subscriptions","Programmatic access to an OpenAI integration endpoint with crypto-native per-call billing","Wallet-authenticated API consumption with no upfront commitment"],"bestFor":["Crypto-native agents that can settle USDC on Base","Developers wanting zero-signup, pay-as-you-go OpenAI access","x402-compatible clients looking for low-cost per-request endpoints"],"notFor":["Users who need detailed API documentation or guaranteed SLAs","High-volume production workloads where $0.02/request adds up significantly","Developers without a Base-compatible wallet or x402 client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:06.077Z"},"updatedAt":"2026-04-22T15:03:02.677Z"}}