{"id":"0181d829-6ac4-4b07-b562-f86772ed375e","shortId":"g5b75u","kind":"x402","title":"Pay-per-call token data endpoint for ETH via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call token data endpoint for ETH via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides premium API access to ETH token data, payable per request using the x402 protocol. The endpoint is live and returns a 402 challenge requesting payment of up to 20,000 base units of USDC (0x8335…2913 on Base network), which equals $0.02 per call. Payment is settled on-chain via the Base L2 network with no API keys, rate limits, or upfront commitments required.\n\nThe provider operates a broader platform offering dozens of endpoints across data & analytics, AI/ML inference, finance & Web3, and infrastructure utilities — all priced uniformly at $0.02 per request. This specific endpoint (`/api/v1/tokens/ETH`) appears to serve ETH-related token information, though the exact response schema is not documented. The x402 challenge specifies a JSON MIME type for the response and a 300-second payment timeout.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of what fields the endpoint returns. The endpoint is confirmed live via the 402 challenge, but consumers should be prepared to experiment with the POST body to discover the actual input/output contract.","tags":[],"capabilities":["x402-payment","per-call-pricing","usdc-settlement","base-network","token-data","eth-data","no-api-key","json-response"],"categories":["crypto","finance"],"synonyms":["ETH token API","Ethereum price data","token information endpoint","crypto data API","x402 paid API","USDC micropayment API","Base network API"],"warnings":["No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'","No OpenAPI or schema definition for request or response payloads","Exact data returned by /api/v1/tokens/ETH is undocumented and must be discovered experimentally","Provider description is generic ('Premium API Access') with no specifics about this endpoint"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/ETH","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/tokens/ETH","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge with clear pricing, but there is no OpenAPI spec, no documented input/output schema, no example requests or responses, and the docs pages are empty. The actual data returned is unknown, making this 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":"2026-04-18T20:32:04.208Z","embedding":[-0.016357422,-0.03817749,0.029296875,-0.0004415512,0.002008438,-0.018600464,-0.0015602112,0.059783936,0.049072266,-0.058288574,0.022857666,-0.039154053,-0.018554688,-0.061157227,-0.027069092,-0.009338379,-0.01171875,-0.0010290146,-0.032470703,0.010124207,0.023498535,-0.016143799,-0.04272461,0.031219482,-0.00019586086,-0.018966675,-0.006374359,-0.0070762634,-0.023345947,-0.037506104,0.048858643,-0.031982422,0.029434204,-0.041931152,-0.012184143,-0.0071105957,0.014862061,0.03677368,0.009536743,-0.03086853,-0.011955261,-0.06878662,-0.016296387,0.012832642,-0.04559326,-0.043182373,-0.0013008118,-0.017562866,0.0099105835,-0.014595032,-0.03201294,-0.0026397705,-0.0035896301,0.021621704,0.0044670105,-0.0104599,-0.004020691,0.002275467,-0.0015888214,0.010803223,0.0019226074,-0.07067871,-0.0063972473,-0.007522583,0.015144348,0.046051025,-0.014442444,0.030593872,-0.0050315857,0.08251953,0.04901123,0.05819702,0.011688232,0.019515991,-0.005504608,0.0014305115,0.0049972534,0.045074463,-0.006755829,-0.035583496,-0.016647339,-0.027618408,-0.07550049,-0.01360321,-0.019577026,-0.03866577,-0.032409668,-0.015823364,-0.014717102,0.028320312,-0.09057617,-0.016311646,-0.0032424927,-0.027908325,-0.005317688,-0.018173218,-0.00705719,0.002204895,-0.0022888184,-0.0049858093,0.00062179565,-0.024017334,0.0040893555,0.01663208,0.04626465,0.03744507,0.017486572,0.008644104,0.008995056,-0.0090789795,-0.040008545,0.027404785,-0.0021266937,-0.017227173,0.005897522,0.0038089752,-0.015007019,0.01838684,-0.021408081,0.024368286,-0.034454346,0.018966675,0.0057029724,0.009292603,0.007221222,-0.02470398,-0.0029525757,0.004470825,-0.016815186,-0.0037193298,0.014854431,0.033050537,0.030258179,0.015853882,-0.049316406,0.018875122,-0.017578125,0.0007376671,-0.028396606,-0.05505371,0.028381348,-0.03012085,0.020584106,0.045562744,-0.089904785,-0.002166748,-0.04360962,0.008033752,-0.04827881,-0.02330017,0.0056915283,0.010093689,0.028182983,-0.009979248,-0.014045715,-0.033966064,-0.0002373457,0.040496826,-0.023376465,0.03262329,-0.014709473,0.04208374,0.033935547,0.016662598,0.015113831,0.036987305,0.0062179565,-0.06616211,-0.07336426,-0.036010742,0.013160706,-0.008270264,-0.0076065063,0.021942139,-0.014968872,-0.079589844,-0.0143585205,0.019088745,-0.014274597,-0.0463562,-0.009559631,-0.033477783,0.006931305,0.010261536,-0.050842285,-0.007827759,-0.051879883,0.088256836,0.013137817,0.02798462,0.009780884,0.013412476,0.078125,-0.004184723,-0.024597168,-0.009407043,0.017349243,-0.029052734,0.02192688,0.009162903,0.031311035,-0.024139404,0.020889282,0.064941406,0.017318726,-0.020568848,-0.023361206,-0.064453125,-0.02470398,-0.006706238,0.02670288,0.008049011,0.005432129,0.025863647,-0.030059814,-0.00274086,-0.0020141602,0.021255493,0.025817871,0.044158936,-0.013053894,0.0317688,0.048614502,0.013870239,-0.04663086,0.022994995,0.0019350052,0.0025634766,-0.009605408,-0.047027588,0.004928589,0.03189087,-0.021453857,0.016189575,-0.01033783,0.021270752,-0.02861023,-0.020706177,0.017242432,-0.018447876,-0.017166138,-0.040863037,-0.016983032,0.020309448,-0.007858276,-0.035003662,-0.028549194,-0.074401855,0.045318604,0.029541016,0.031951904,-0.003791809,0.0317688,-0.025527954,-0.01687622,-0.0748291,0.045959473,0.07305908,-0.013557434,-0.0006866455,0.02760315,0.008369446,-0.040496826,0.0002939701,-0.0028057098,-0.041046143,-0.04901123,0.019897461,-0.0440979,-0.012435913,0.035491943,0.009284973,0.03933716,-0.029968262,-0.0602417,-0.03756714,-0.0041542053,-0.002035141,-0.024841309,0.016738892,-0.027267456,0.003528595,0.0158844,-0.014587402,0.010948181,-0.012702942,0.021514893,0.0038280487,0.023208618,-0.0012378693,-0.007255554,0.0040016174,0.010253906,-0.060760498,0.013809204,-0.023406982,0.07836914,-0.035003662,0.01687622,-0.008918762,-0.00843811,0.055786133,-0.017929077,-0.062347412,0.010566711,0.008003235,0.022903442,0.05331421,0.0016393661,-0.033172607,-0.011543274,0.048736572,-0.0077934265,-0.009246826,0.013633728,0.022216797,0.045898438,0.022415161,-0.05432129,-0.03488159,0.015151978,-0.025253296,0.03213501,-0.00957489,0.018447876,-0.03466797,-0.0090408325,-0.019760132,0.01826477,-0.038208008,-0.007911682,-0.029846191,0.023406982,-0.010437012,0.022827148,0.035583496,0.002653122,-0.014091492,0.03793335,0.047180176,0.022445679,-0.030227661,-0.014381409,-0.03805542,-0.007896423,-0.005569458,0.011131287,0.029724121,0.004711151,0.055633545,-0.038238525,0.000057816505,0.009727478,0.008621216,0.022232056,-0.014839172,-0.0017642975,-0.072631836,-0.037017822,-0.021270752,-0.03186035,0.02571106,0.012992859,-0.00028777122,0.06317139,0.0036373138,-0.03149414,-0.01826477,0.016586304,-0.061920166,-0.017990112,0.026901245,0.0028572083,-0.012313843,0.0033626556,-0.02230835,0.0064048767,0.04776001,0.007827759,0.0013027191,0.064575195,0.016464233,-0.0019483566,0.014045715,-0.00029182434,0.028762817,-0.01789856,-0.000017225742,-0.031707764,-0.009407043,0.034362793,-0.01134491,-0.028900146,-0.05215454,0.06750488,0.04837036,0.04611206,0.0062675476,0.017837524,0.03781128,0.0052948,-0.007499695,-0.006965637,-0.02204895,-0.011955261,-0.03555298,0.023040771,-0.031173706,0.0024909973,-0.008804321,0.030471802,0.0020122528,0.027526855,-0.037475586,0.024917603,-0.0026893616,0.0073661804,0.023788452,-0.010238647,0.040252686,0.054656982,-0.035614014,0.010612488,0.010124207,-0.0390625,0.0049095154,0.043304443,0.00894165,-0.02809143,-0.053619385,-0.0061836243,0.005680084,0.015823364,-0.032196045,-0.0041503906,0.0025520325,0.011604309,0.010559082,-0.0057907104,-0.026947021,-0.024398804,-0.0178833,-0.029266357,0.012214661,-0.04727173,-0.00349617,0.013969421,-0.027023315,0.011978149,0.009170532,0.0023670197,-0.02130127,0.005882263,0.048095703,0.0034885406,-0.049560547,0.020217896,0.0051231384,0.033843994,0.02407837,0.026855469,-0.023986816,0.017150879,0.06652832,0.004802704,-0.03604126,-0.046417236,0.018676758,-0.035339355,-0.007987976,0.016693115,-0.04663086,-0.012809753,-0.015457153,-0.016937256,0.0013523102,0.020355225,-0.038269043,0.035888672,0.021759033,-0.013160706,-0.03527832,-0.07354736,-0.014160156,0.018066406,0.034973145,0.012992859,-0.015144348,-0.052642822,-0.0010442734,0.014160156,-0.010139465,0.0056610107,-0.011985779,-0.011802673,-0.015731812,-0.031341553,-0.0070648193,-0.011253357,0.016571045,-0.013694763,-0.0072631836,0.01638794,0.02243042,0.034240723,0.01675415,0.00024151802,0.039398193,-0.026870728,0.014282227,-0.029846191,0.04269409,0.0063209534,-0.022705078,-0.055114746,0.017364502,0.021835327,0.036956787,-0.05480957,-0.0038490295,-0.01675415,0.01701355,0.0025157928,-0.01096344,-0.0028152466,-0.012825012,-0.04562378,-0.07312012,0.03491211,0.0039253235,0.03677368,0.02268982,-0.0044937134,0.022277832,-0.004711151,0.024780273,0.0154800415,0.0090789795,-0.015670776,-0.041503906,-0.034301758,-0.03326416,-0.023864746,-0.022094727,0.03326416,-0.023406982,-0.0059509277,0.021209717,-0.0184021,0.02067566,0.025405884,-0.005558014,0.018600464,-0.011505127,0.0030937195,0.00724411,0.004245758,-0.060272217,0.025985718,0.012504578,0.00605011,-0.0057525635,0.052490234,0.03201294,-0.014213562,0.010498047,-0.0020866394,-0.008979797,-0.024017334,0.0047683716,-0.0016317368,0.0034980774,0.0058288574,-0.03643799,0.032073975,-0.0016031265,-0.020690918,-0.01272583,0.007232666,0.015899658,-0.023773193,0.016220093,0.016357422,0.051239014,-0.02293396,0.012481689,0.00687027,0.030715942,0.020812988,0.022384644,0.021148682,0.008155823,-0.008232117,0.019729614,0.0031147003,-0.015396118,0.019866943,-0.013633728,0.018188477,0.0020580292,0.0018644333,-0.0063667297,-0.027359009,0.00009649992,-0.022262573,-0.0034446716,0.026397705,0.03390503,0.0082092285,-0.011154175,0.01398468,0.004333496,-0.0030975342,-0.017501831,0.014091492,0.029312134,-0.041778564,-0.024398804,0.0054359436,0.030090332,0.038360596,-0.057922363,-0.010314941,0.0014829636,-0.011558533,-0.017837524,-0.02810669,-0.023422241,0.0015678406,0.031158447,0.0018863678,0.01838684,0.022369385,0.012245178,0.0076026917,0.0037059784,0.0074005127,-0.011131287,-0.022735596,-0.03805542,0.00007110834,-0.012176514,0.003255844,-0.021224976,-0.0029087067,-0.018676758,-0.03479004,0.012504578,-0.016830444,0.003358841,0.0036411285,0.003326416,0.030883789,0.0003964901,0.015258789,-0.02130127,-0.03778076,-0.00016212463,0.0046844482,0.0019350052,-0.030548096,0.02331543,-0.010551453,0.018081665,0.006511688,0.029724121,0.034332275,0.027267456,-0.009475708,0.007686615,-0.051513672,0.041992188,-0.029846191,0.008705139,0.03274536,-0.03479004,-0.016677856,-0.027572632,-0.019470215,0.048797607,-0.020751953,-0.019973755,-0.027618408,-0.07293701,0.010505676,-0.061157227,0.030334473,0.03933716,0.05014038,-0.0018529892,-0.011154175,-0.006778717,0.021759033,-0.017547607,-0.0052452087,-0.0011377335,0.03338623,0.035064697,0.0026893616,-0.022567749,-0.017715454,-0.005947113,-0.016403198,-0.046539307,-0.050567627,-0.020568848,0.011856079,-0.011169434,-0.0016555786,-0.022415161,-0.03842163,-0.012954712,-0.047698975,0.006652832,0.0059928894,0.014877319,0.013198853,-0.017440796,-0.017456055,0.015457153,-0.0035800934,0.037628174,0.002412796,0.0017156601,-0.03074646,0.010055542,0.03768921,0.016403198,0.0046691895,-0.017028809,-0.0003387928,-0.020904541,-0.057861328,-0.011054993,-0.00881958,-0.02017212,0.0048332214,-0.02166748,-0.038085938,-0.0072402954,-0.020065308,-0.007881165,0.004348755,0.0075035095,0.028060913,0.006313324,0.022491455,-0.005470276,0.0021820068,-0.022033691,0.024230957,0.007709503,0.008026123,0.025543213,0.037475586,-0.01626587,-0.012199402,-0.004211426,-0.0077323914,0.015396118,-0.028518677,-0.0029659271,-0.029067993,0.017349243,0.0023097992,-0.021697998,-0.044403076,0.012588501,0.084228516,0.007171631,-0.022445679,-0.019058228,-0.016799927,0.0066833496,0.045837402,-0.046875,0.010635376,-0.019104004,0.008880615,-0.0256958,0.009277344,-0.011108398,0.02015686,-0.022735596,-0.032226562,-0.0036582947,-0.014526367,0.006324768,-0.052215576,-0.025009155,-0.0635376,-0.0032901764,-0.027145386,-0.005886078,-0.000055730343,0.027160645,-0.011390686,-0.05871582,-0.002275467,0.04864502,0.016525269,0.038848877,-0.029388428,0.02784729,0.014343262,-0.040130615,-0.009353638,0.050354004,-0.037109375,-0.00724411,-0.04107666,0.022628784,0.015731812,-0.0017719269,0.02041626,-0.011688232,0.020690918,-0.026031494,0.01247406,0.005809784,0.0076293945,-0.023025513,0.018417358,-0.007106781,-0.0051078796,0.02331543,-0.053833008,0.019699097,0.007827759,0.012809753,0.01663208,0.04055786,0.035461426,-0.04107666,-0.021514893,0.008377075,-0.0006670952,0.05331421,-0.029937744,0.025650024,0.014694214,0.005207062,-0.009162903,-0.023162842,0.0027179718,-0.04815674,-0.02456665,0.020095825,0.0151901245,0.012138367,-0.018737793,-0.009979248,0.026397705,0.026443481,0.024017334,-0.028152466,-0.030670166,-0.031921387,0.017868042,-0.0047302246,0.006187439,-0.008979797,0.025299072,0.025909424,0.019897461,0.02128601,0.0013942719,0.0034713745,0.023834229,0.0027561188,0.014877319,0.026321411,0.008895874,0.0079422,0.023284912,0.0035076141,-0.034362793,-0.008590698,-0.019119263,0.0018672943,0.019073486,-0.0075302124,-0.028442383,0.00086402893,0.001627922,-0.001613617,-0.030349731,-0.018844604,-0.013534546,-0.022918701,0.0023269653,-0.005542755,0.010482788,0.0047340393,0.0155181885,0.007888794,-0.000729084,0.019882202,-0.005001068,-0.010070801,0.040618896,0.022842407,0.029632568,-0.017547607,0.018814087,-0.01966858,-0.004322052,-0.006351471,-0.00724411,0.0012283325,0.037994385,-0.022506714,0.014923096,0.005962372,0.0033798218,-0.009109497,0.009643555,-0.009017944,0.012184143,-0.005672455,0.04498291,-0.05291748,0.011512756,0.011619568,-0.0014839172,-0.016342163,-0.0077171326,-0.03201294,0.018920898,0.00945282,-0.012557983,0.028427124,0.0026359558,0.031677246,-0.0051002502,-0.021636963,0.00017392635,-0.0418396,-0.02331543,0.014381409,-0.02015686,0.0062217712,0.012702942,-0.024108887,0.015701294,-0.02279663,0.019195557,0.0013303757,0.004837036,-0.011314392,-0.0256958,0.0019216537,-0.017715454,-0.033172607,0.018493652,-0.0028419495,0.04525757,0.018966675,0.041290283,0.04260254,0.031799316,0.01878357,-0.042999268,-0.027557373,0.00447464,-0.019897461,0.008857727,-0.019104004,0.040374756,0.028152466,-0.00035905838,0.024261475,0.03012085,0.032684326,0.02178955,0.019729614,0.00497818,-0.0066223145,-0.011512756,0.014503479,-0.00818634,0.042236328,-0.037353516,0.02281189,0.034301758,0.041412354,0.005329132,0.030227661,0.06951904,0.006919861,-0.006198883,0.022140503,-0.033569336,-0.009971619,-0.0146102905,-0.030349731,0.04724121,0.028900146,0.035736084,0.046722412,0.0020484924,-0.0070152283,-0.0059814453,-0.03213501,-0.04043579,0.057678223,0.026229858,-0.017181396,-0.0025424957,-0.014961243,0.011749268,-0.05908203,-0.011749268,0.023834229,-0.014549255,0.019180298,-0.007286072,-0.033172607,-0.0054893494,0.028549194,0.016525269,0.027450562,-0.00630188,0.043395996,0.042816162,0.0063552856,0.016296387,-0.008865356,0.004673004,-0.02897644,-0.03451538,0.044311523,0.021011353,-0.020751953,0.0013475418,0.008102417,0.02897644,0.037841797,0.051513672,-0.012893677,0.011581421,0.016937256,0.013870239,-0.019180298,0.0446167,0.020706177,0.02645874,0.047912598,0.029220581,0.035003662,-0.036499023,0.038848877,0.013946533,0.0074691772,0.011978149,-0.005012512,0.0051193237,-0.0033798218,0.028961182,-0.02368164,0.00009012222,0.017974854,0.011558533,-0.011421204,-0.004386902,-0.004207611,-0.01890564,-0.018951416,0.011787415,0.020126343,-0.0026683807,0.026916504,0.017333984,0.04550171,-0.031051636,0.0317688,-0.0017671585,-0.013160706,-0.016143799,0.010673523,-0.038269043,0.022857666,-0.0024433136,0.008842468,-0.029251099,0.008522034,0.035369873,0.0025024414,0.008354187,-0.00070381165,0.0024642944,0.018218994,0.037750244,0.037506104,0.005935669,-0.004611969,-0.018188477,0.016235352,0.045043945,-0.005207062,0.004234314,-0.03250122,0.002029419,0.02798462,-0.005302429,-0.008239746,-0.022277832,-0.019226074,-0.011260986,0.01701355,0.023605347,0.0018339157,0.05355835,-0.010093689,-0.014213562,0.027801514,0.019256592,-0.021316528,-0.019927979,-0.010002136,0.019821167,-0.014015198,0.057769775,0.0357666,-0.0018987656,0.037597656,-0.0009636879,-0.02571106,0.019943237,-0.011268616,0.030426025,-0.012580872,-0.0050621033,0.0031700134,0.029266357,-0.0345459,-0.036010742,0.011268616,-0.020050049,-0.033813477,-0.02130127,0.0042037964,0.0038375854,0.02809143,0.036712646,0.023284912,-0.024871826,0.05618286,-0.012626648,0.0340271,0.009429932,-0.009887695,0.050720215,0.0016374588,0.044677734,0.01864624,0.02658081,-0.02859497,0.011405945,0.016983032,0.011672974,0.0003681183,0.011314392,-0.033294678,0.035308838,-0.0034828186,0.029388428,-0.0088272095,-0.0031261444,0.012535095,0.018844604,-0.019729614,0.0011577606,-0.01285553,0.0066337585,0.028839111,-0.024795532,-0.007949829,-0.00035357475,-0.019836426,0.020996094,-0.0077705383,0.008987427,-0.00006407499,-0.0099487305,0.015975952,-0.029937744,-0.023849487,0.0044059753,0.0034828186,-0.03878784,-0.0105896,0.014511108,0.021011353,-0.01727295,0.01776123,0.033233643,0.0054130554,0.0003130436,0.03704834,-0.0016555786,0.020019531,-0.02494812,0.010246277,0.023864746,-0.0140686035,-0.03338623,0.0078048706,0.013076782,-0.029922485,0.029678345,0.02406311,-0.009933472,0.005508423,-0.003616333,-0.004501343,-0.012916565,-0.002128601,-0.019958496,-0.0088272095,-0.026977539,-0.028717041,0.005744934,0.017532349,0.0003476143,-0.0010557175,0.0045661926,-0.026000977,0.017486572,0.03768921,0.031982422,-0.058135986,0.004333496,0.010528564,0.016433716,-0.0005478859,-0.009338379,0.004886627,-0.026367188,0.008087158,0.006755829,0.012969971,0.001868248,-0.01171875,-0.0014066696,0.013458252,0.0014381409,0.03164673,0.01247406,0.015899658,0.026611328,-0.012031555,-0.025131226,-0.008216858,0.0049438477,0.013206482,0.029968262,0.01058197,-0.032806396,0.011932373,-0.0058288574,0.0047569275,0.027938843,-0.0052757263,0.018127441,-0.017730713,0.013183594,0.0037403107,0.012138367,-0.006801605,-0.02798462,0.013954163,0.03881836,0.05230713,0.00037527084,-0.01424408,0.024963379,0.025619507,0.011528015,0.030288696,-0.0011577606,0.04031372,0.018600464,-0.018096924,-0.009216309,0.026611328,0.004611969,-0.024139404,0.0027580261,-0.02494812,0.0046043396,0.021408081,0.015655518,-0.0046844482,-0.044525146,-0.023605347,-0.009849548,-0.034332275,0.009315491,-0.0093307495,0.009338379,-0.004589081,-0.007888794,0.012641907,-0.019378662,-0.039093018,0.0017051697,0.010650635,-0.018066406,-0.0680542,0.010551453,-0.0084991455,-0.0038814545,-0.0149383545,0.004550934,-0.0024967194,0.03930664,0.019134521,-0.0057029724,0.012763977,0.016357422,0.035583496,0.012794495,0.010307312,-0.016296387,-0.014564514,-0.012771606,0.0056495667,-0.024139404,0.018707275,0.0028457642,0.02420044,0.010444641,-0.0054244995,0.008293152,-0.007949829,-0.018341064,0.00894165,-0.030456543,-0.041656494,0.007007599,0.014549255,-0.03475952,-0.029708862,0.030700684,0.000114023685,-0.029067993,0.028137207,0.03137207,0.0018033981,0.04095459,-0.0037212372,0.011566162,-0.0061950684,0.0017557144,-0.035614014,0.014678955,-0.0015907288,0.017456055,0.009101868,0.010307312,0.020828247,-0.020446777,-0.0127334595,0.03543091,0.03164673,-0.022857666,0.015312195,0.025360107,0.0033931732,-0.003967285,0.0007214546,0.01109314,0.023849487,0.017974854,0.011054993,0.011894226,0.022415161,-0.013343811,0.016174316,0.017654419,-0.029769897,-0.0491333,0.0029850006,-0.020462036,0.018157959,0.010116577,-0.010772705,-0.0146102905,0.012504578,-0.0032901764,-0.04647827,0.0006709099,0.012046814,0.03842163,-0.008201599,-0.020065308,-0.0028133392,0.009490967,-0.03741455,-0.014427185,-0.04473877,-0.010093689,-0.0032024384,0.0045700073,-0.0016059875,0.016937256,-0.00009429455,-0.019134521,-0.00033068657,0.009857178,-0.026412964,0.013694763,0.0008444786,-0.0023231506,0.03213501,0.047698975,-0.006340027,0.010040283,-0.024749756,-0.012664795,0.014862061,-0.0038795471,0.0046310425,-0.028015137,0.026565552,-0.018051147,-0.01737976,0.021591187,0.00995636,0.0072517395,-0.033813477,-0.0068740845,-0.012619019,0.0009613037,0.014678955,-0.020126343,-0.008666992,0.013473511,-0.0005965233,-0.029510498,-0.017684937,0.0027198792,0.057861328,-0.011833191,0.0418396,-0.01625061,-0.032287598,-0.006816864,-0.004047394,-0.0231781,0.0054740906,0.025375366,0.0020503998,-0.0028133392,0.008506775,-0.0068740845,-0.025131226,-0.013748169,0.017333984,-0.030456543,0.010047913,0.022003174,-0.012176514,0.049835205,0.0069503784,0.02104187,0.0013523102,0.017211914,0.034729004,-0.031311035,0.038909912,-0.009277344,-0.026519775,0.0050354004,0.0032482147,-0.010383606,0.0008831024,0.0035552979,-0.0115737915,-0.034851074,0.032470703,-0.015434265,0.011161804,-0.015563965,-0.004688263,-0.026046753,-0.00831604,-0.01914978,0.0118637085,-0.038635254,-0.01234436,0.03665161,0.00011539459,0.0093688965,-0.011314392,0.0011711121,0.028961182,0.054473877,-0.0017461777,-0.04815674,-0.02822876,0.01525116,0.008674622,0.02331543,0.0067367554,-0.040100098,-0.0043258667,-0.005279541,0.018585205,0.011726379,-0.03213501,0.008346558,-0.00044178963,-0.013519287,-0.009300232,0.040893555,-0.005504608,-0.003894806,-0.0034675598,0.018569946,0.02166748,0.008956909,-0.0064849854,0.013511658,0.0055007935,-0.038085938,0.061340332,-0.014923096,0.013244629,-0.01586914,0.011627197,-0.053497314,-0.0070877075,-0.030700684,-0.00982666],"createdAt":"2026-04-18T18:33:13.889Z","updatedAt":"2026-04-23T20:01:25.657Z","lastSeenAt":"2026-04-23T20:01:25.657Z","tsv":"'/api/v1/tokens/eth':139 '/request':19,38 '0.02':18,37,85,133 '000':73 '0x8335':78 '20':72 '2913':79 '300':169 '402':65,220 'Base network API' 'ETH token API' 'Ethereum price data' 'USDC micropayment API' 'access':46 'across':119 'actual':236 'ai/ml':122 'analyt':121 'api':45,101,181 'appear':140 'base':13,32,74,81,96 'base-network' 'bodi':232 'broader':113 'call':4,23,87 'chain':93 'challeng':66,158,221 'commit':107 'confirm':216 'connect':187 'consum':223 'contract':238 'crypto data API' 'data':6,25,50,120 'descript':206 'detail':194 'discov':234 'doc':178 'document':155,173 'dozen':116 'endpoint':7,26,40,59,118,138,211,214 'equal':84 'eth':9,28,48,144 'eth-data' 'eth-rel':143 'exact':150 'exampl':201 'experi':228 'extrem':175 'field':209 'financ':124 'infer':123 'inform':147 'infrastructur':127 'input/output':237 'json':161 'json-response' 'key':102 'l2':97 'limit':104 'live':61,217 'lowpaymentfee.com':42 'mime':162 'network':82,98 'no-api-key' 'offer':115 'on-chain':91 'openapi':198 'oper':111 'page':182 'pay':2,21 'pay-per-cal':1,20 'payabl':51 'payload':203 'payment':68,88,171 'per':3,22,52,86,134 'per-call-pricing' 'platform':114 'post':231 'premium':44 'prepar':226 'price':130,179 'prompt':189 'protocol':57 'provid':43,110 'rate':103 'relat':145 'render':184 'request':53,67,135 'request/response':202 'requir':108 'respons':151,166 'return':63,212 'schema':152 'second':170 'serv':142 'settl':14,33,90 'spars':176 'spec':199 'specif':137 'specifi':159 'technic':193 'though':148 'timeout':172 'token':5,24,49,146 'token information endpoint' 'token-data' 'type':163 'uniform':131 'unit':75 'upfront':106 'usdc':16,35,77 'usdc-settlement' 'use':54 'util':128 'via':10,29,94,218 'wallet':188 'web3':125 'x402':11,30,56,157 'x402 paid API' 'x402-payment'","prices":[{"id":"abb32450-ca14-40e8-a574-1856b664488e","listingId":"0181d829-6ac4-4b07-b562-f86772ed375e","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/tokens/ETH","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:13.889Z"}],"sources":[{"listingId":"0181d829-6ac4-4b07-b562-f86772ed375e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/ETH","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:13.889Z","lastSeenAt":"2026-04-23T20:01:25.657Z"}],"details":{"listingId":"0181d829-6ac4-4b07-b562-f86772ed375e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/ETH \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge requesting up to 20,000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/tokens/ETH"},{"claim":"All endpoints priced at $0.02 per request with no API keys, rate limits, or minimums","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/ETH"},{"claim":"Platform offers endpoints across data & analytics, AI/ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching ETH token data or price information on demand with per-call payment","Integrating pay-per-use crypto data into autonomous agent workflows","Accessing token information without managing API keys or subscriptions"],"bestFor":["Agents or bots that need on-demand ETH token data with no subscription overhead","Developers experimenting with x402 payment-gated APIs on Base","Low-volume consumers who prefer pay-per-call over monthly plans"],"notFor":["High-volume consumers needing bulk token data at lower per-call cost","Users who need detailed API documentation or guaranteed SLAs before integrating","Anyone without a Base-network USDC wallet for payment"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:52:41.73Z"},"updatedAt":"2026-04-23T20:01:25.657Z"}}