{"id":"62155884-8166-424b-b0a2-f2641b7ce875","shortId":"4x7dtA","kind":"x402","title":"DeFi ETH liquidity data via x402 micropayment on Base — $0.02 per request.","tagline":"DeFi ETH liquidity data via x402 micropayment on Base — $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides DeFi liquidity data for ETH, accessible via the x402 payment protocol. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). The endpoint accepts POST requests and returns JSON.\n\nThe provider operates a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced uniformly at $0.02 per request. No API keys or rate limits are advertised; access is gated solely by the x402 payment header. Settlement occurs on the Base L2 network using USDC (contract 0x8335…2913).\n\nDocumentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed description of what the liquidity endpoint returns. The endpoint is confirmed live (402 challenge captured), but the actual data payload and input parameters are unknown.","tags":[],"capabilities":["defi-liquidity-data","eth-liquidity","x402-payment","base-network","usdc-settlement","pay-per-request","no-api-key"],"categories":["defi","finance"],"synonyms":["ETH liquidity","DeFi liquidity API","Ethereum liquidity data","liquidity pool data","DeFi analytics","ETH DeFi endpoint"],"warnings":["No API documentation available — /docs, /api, /pricing, and /README all return only a wallet-connect prompt","No OpenAPI or JSON schema describing request parameters or response format","Actual data returned by the liquidity endpoint is completely unknown","Provider catalog is very broad (analytics, AI, finance, utils) with uniform pricing, which may indicate placeholder or thin implementations"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/ETH/liquidity","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/defi/ETH/liquidity","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 confirmed) and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and no description of what data is actually returned. 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":"2026-04-18T21:46:06.885Z","embedding":[-0.026672363,-0.02897644,0.015853882,0.022323608,0.033203125,-0.009994507,-0.03326416,0.036712646,0.03656006,-0.0703125,0.0074653625,-0.034729004,-0.01966858,-0.059783936,0.000046133995,0.009063721,-0.0025463104,-0.017044067,-0.051940918,0.05206299,0.038726807,-0.022323608,-0.047821045,0.030700684,-0.0057029724,-0.016616821,0.013534546,-0.0028648376,-0.028945923,-0.06100464,0.054718018,-0.020248413,0.034240723,-0.0030460358,-0.0016794205,-0.002105713,0.0057868958,0.040130615,-0.008354187,-0.028793335,-0.011764526,-0.06286621,-0.020767212,0.009002686,-0.030776978,-0.05206299,0.015930176,-0.033843994,0.031982422,-0.00831604,-0.046295166,-0.002149582,-0.014015198,0.024002075,0.027709961,0.00093460083,-0.003856659,-0.00039339066,0.0017004013,-0.013618469,0.027954102,-0.047454834,-0.0039138794,-0.00856781,0.015823364,0.04949951,-0.018997192,0.050048828,-0.019866943,0.07940674,0.033355713,0.05718994,0.012512207,0.01348114,-0.012489319,-0.025009155,-0.011238098,0.040893555,-0.027832031,-0.0074539185,0.009429932,-0.0016679764,-0.08001709,-0.009864807,-0.03878784,-0.052978516,-0.028060913,0.010505676,-0.0090408325,0.04888916,-0.074401855,-0.0211792,-0.028671265,-0.004535675,-0.0037956238,-0.012176514,-0.0015802383,-0.004852295,-0.018081665,0.0053482056,-0.007095337,-0.030853271,0.010948181,0.00072193146,0.038360596,0.022140503,-0.00030446053,0.006916046,0.005130768,-0.02418518,-0.014091492,-0.005558014,-0.0009775162,-0.023925781,0.012916565,0.010314941,-0.025299072,0.028747559,-0.039978027,0.04046631,-0.05206299,0.0546875,0.013282776,0.002696991,0.033325195,-0.032348633,-0.009002686,-0.00021064281,-0.053344727,-0.03717041,0.072021484,0.01411438,0.010940552,0.014549255,-0.049957275,0.037902832,-0.0046691895,0.0015611649,-0.012580872,-0.059783936,0.027160645,-0.0022449493,0.034179688,0.0440979,-0.066589355,0.010314941,-0.031829834,-0.01272583,-0.041259766,-0.034210205,0.02192688,-0.013694763,-0.021362305,0.00078487396,-0.020248413,-0.039886475,-0.0022029877,0.017425537,0.0036029816,0.040100098,-0.02859497,0.061645508,0.018722534,-0.00047945976,-0.00084495544,0.055023193,-0.034423828,-0.058532715,-0.08502197,-0.017364502,-0.011009216,-0.00048828125,-0.0029449463,0.0047302246,-0.014533997,-0.09259033,-0.01084137,-0.0055389404,-0.0011663437,-0.04144287,-0.025115967,-0.039886475,0.011650085,-0.016052246,-0.042999268,0.002483368,-0.055114746,0.08746338,0.014785767,0.041900635,-0.015007019,0.05343628,0.062438965,0.012962341,-0.013671875,0.0006747246,0.033935547,-0.01524353,0.018554688,-0.015106201,0.01360321,-0.013374329,0.038146973,0.049743652,-0.0027999878,0.008644104,-0.0119018555,-0.06982422,-0.043518066,0.012390137,0.018798828,0.034606934,-0.019927979,-0.013900757,-0.039489746,0.004589081,-0.012786865,0.00016570091,0.0178833,0.04638672,0.011116028,0.029144287,0.049804688,0.018981934,-0.039764404,0.02758789,0.018341064,0.023345947,-0.013214111,-0.024520874,0.027267456,0.029418945,-0.04168701,0.020996094,0.008346558,0.022399902,-0.04901123,-0.0077552795,0.010879517,-0.012084961,-0.023803711,-0.042755127,-0.027999878,0.02394104,0.009628296,-0.024246216,-0.041229248,-0.05758667,0.051116943,0.02508545,-0.012550354,-0.009437561,0.0040397644,-0.033935547,-0.016937256,-0.078063965,0.033325195,0.04840088,-0.028549194,-0.031707764,0.023330688,-0.012214661,-0.03643799,-0.01209259,-0.0060653687,-0.02885437,-0.031051636,0.02482605,-0.04034424,0.01586914,0.03604126,0.012207031,0.04309082,-0.0022010803,-0.039733887,-0.03302002,0.0037612915,0.00014746189,-0.03869629,0.004764557,-0.009338379,-0.01663208,0.020141602,0.011672974,0.0057640076,0.00674057,0.026321411,0.0027656555,0.031219482,0.001159668,-0.006450653,0.036315918,0.024459839,-0.05432129,0.03881836,-0.017333984,0.05987549,-0.049987793,0.02243042,-0.016586304,0.01776123,0.055114746,0.0037670135,-0.040222168,0.018569946,0.029052734,0.02798462,0.04663086,-0.002128601,-0.016540527,-0.0058135986,0.057434082,-0.0049324036,-0.008201599,0.0056991577,0.016845703,0.050598145,0.036712646,-0.04156494,-0.06384277,0.019638062,-0.03289795,0.038269043,-0.02746582,0.029449463,-0.026290894,0.00015163422,-0.03439331,-0.01411438,-0.040985107,0.024398804,-0.006263733,0.023330688,-0.02293396,0.00982666,0.0035820007,0.023666382,-0.032836914,0.03274536,0.053100586,0.009719849,0.0045394897,0.0004916191,-0.033843994,0.009727478,-0.010375977,0.015289307,0.02998352,0.01939392,0.028198242,-0.04425049,-0.0034179688,-0.020904541,0.007083893,0.03488159,0.018585205,-0.009254456,-0.06970215,-0.03479004,-0.029708862,-0.02758789,0.005279541,0.01576233,-0.0016355515,0.04812622,-0.0053710938,-0.004299164,-0.020584106,0.012191772,-0.06402588,0.00062179565,0.03451538,-0.008010864,-0.0044174194,0.011123657,-0.02911377,0.015609741,0.05255127,0.018218994,0.03237915,0.070007324,0.0063438416,-0.00022828579,-0.0076560974,-0.0019626617,0.027755737,-0.027755737,0.026428223,-0.022201538,-0.0011405945,0.023773193,-0.037322998,-0.0107421875,-0.062316895,0.037139893,0.037353516,0.068847656,0.023468018,0.02583313,0.0048980713,-0.008575439,-0.032470703,-0.013458252,-0.02381897,-0.033813477,-0.015113831,0.029418945,-0.010635376,-0.004386902,-0.011299133,0.018569946,-0.012664795,0.017623901,-0.032043457,0.021438599,-0.02229309,-0.010818481,0.034698486,0.01687622,0.05001831,0.04937744,-0.034606934,0.0015201569,-0.0063934326,-0.022338867,0.023361206,0.017974854,0.008911133,-0.029067993,-0.056518555,-0.03591919,0.016983032,0.014930725,-0.033233643,-0.01574707,-0.008544922,0.050720215,-0.0063285828,-0.0035324097,-0.036743164,0.0013408661,0.011253357,-0.04626465,0.0015077591,-0.040405273,0.0060653687,0.041015625,-0.012901306,0.0154418945,0.009231567,0.007858276,-0.019195557,-0.012466431,0.043273926,0.015930176,-0.026000977,0.019470215,-0.008804321,0.01953125,0.018997192,0.033355713,0.010856628,0.0079422,0.05834961,0.015426636,-0.008773804,-0.03604126,0.021713257,-0.028427124,-0.0105896,0.008110046,-0.050048828,-0.025512695,-0.006088257,-0.019607544,-0.009460449,0.022399902,-0.035980225,0.025970459,0.035461426,-0.04360962,-0.026870728,-0.10308838,-0.03439331,0.009140015,0.055999756,0.007156372,-0.0045547485,-0.034423828,-0.0015974045,0.03237915,-0.011268616,0.03390503,-0.013137817,-0.012962341,-0.0064926147,-0.04498291,-0.015914917,-0.0004453659,0.019424438,0.010231018,-0.011177063,0.0056648254,0.013534546,0.026473999,0.0022850037,-0.0121536255,-0.011184692,-0.010276794,0.0143585205,-0.012390137,0.034179688,0.026351929,-0.019241333,-0.044799805,0.036315918,0.0020370483,0.026870728,-0.0335083,0.00023412704,-0.014434814,0.015281677,0.008621216,-0.018936157,0.0027122498,-0.022445679,-0.03878784,-0.061645508,0.037628174,0.005493164,0.03314209,-0.0017414093,-0.00605011,0.031433105,-0.0003902912,-0.0028018951,0.016189575,-0.021697998,-0.0067977905,-0.02885437,-0.021865845,-0.025527954,-0.009857178,-0.018325806,0.018600464,-0.023773193,0.004589081,-0.0034255981,-0.021347046,0.017227173,0.02609253,-0.0024642944,0.008361816,0.0047683716,0.01348114,0.044830322,0.0101623535,-0.045166016,0.036834717,-0.0035572052,-0.014808655,-0.001876831,0.031707764,0.026290894,-0.025878906,-0.012001038,-0.0045547485,-0.008705139,-0.017929077,0.0028076172,-0.0017004013,-0.0056991577,0.0063285828,-0.040252686,0.021362305,0.01449585,-0.030426025,-0.0035820007,0.021408081,-0.0076141357,-0.030700684,0.013412476,0.007896423,0.06072998,-0.01689148,0.024230957,0.016281128,0.06201172,0.016540527,-0.012245178,0.01260376,0.017501831,-0.019180298,0.008743286,0.022781372,-0.03390503,0.036315918,0.006587982,0.027740479,-0.015052795,0.010047913,-0.0017175674,-0.029220581,-0.014968872,-0.0038013458,-0.027832031,0.031204224,0.006401062,0.020767212,-0.010948181,0.0074157715,0.04196167,-0.0068588257,-0.035003662,0.0028476715,0.042877197,-0.012763977,-0.012062073,0.02545166,0.009887695,0.041046143,-0.055755615,-0.0013866425,0.010520935,0.017074585,-0.025405884,-0.053344727,-0.029785156,-0.021362305,0.016220093,-0.019302368,0.0064582825,0.014953613,-0.0060310364,-0.0079574585,0.008171082,-0.013160706,0.0028533936,-0.05987549,-0.04397583,0.002588272,-0.016586304,0.023925781,-0.060058594,0.021194458,-0.03451538,-0.025375366,0.0109939575,-0.036346436,0.0015249252,-0.010574341,-0.0051193237,0.008270264,0.0033035278,0.020812988,0.011245728,-0.03286743,0.0050735474,0.0146102905,0.0129776,-0.026229858,0.0054092407,0.0023231506,0.027908325,-0.027740479,0.014297485,0.03881836,0.019241333,-0.0037326813,0.024551392,-0.0010156631,0.039978027,-0.028656006,-0.007484436,-0.012260437,-0.03253174,-0.0066566467,-0.04421997,-0.016021729,0.03274536,-0.013580322,-0.0121536255,-0.012939453,-0.068237305,-0.0033054352,-0.048187256,0.020217896,0.025039673,0.039855957,-0.012481689,0.011711121,0.00605011,0.034973145,-0.021499634,-0.0056533813,-0.0061912537,0.02897644,0.025024414,0.029937744,-0.017730713,-0.034210205,-0.023269653,-0.0034446716,-0.027069092,-0.035125732,-0.021850586,0.013473511,-0.002696991,0.034606934,-0.039520264,-0.0256958,0.0052604675,-0.020462036,-0.002298355,-0.0082473755,0.009605408,0.01146698,-0.016967773,0.0009441376,0.037384033,-0.017227173,0.021896362,0.012504578,-0.0035476685,-0.036865234,0.008491516,0.040130615,0.0115737915,0.020706177,-0.045562744,0.002008438,0.0025558472,-0.059326172,-0.013580322,-0.015960693,-0.012756348,0.0041007996,-0.018875122,-0.054138184,-0.013442993,-0.030563354,-0.010116577,0.012687683,0.043945312,0.024414062,-0.0061035156,0.028030396,0.014732361,-0.009521484,-0.0132369995,0.0124053955,0.008468628,0.0063209534,0.020889282,0.016906738,-0.0037765503,-0.016113281,-0.013214111,-0.0029850006,0.011856079,-0.019805908,-0.0035324097,-0.022216797,0.0128479,-0.0023517609,-0.012458801,-0.054229736,-0.015579224,0.068359375,-0.023223877,0.007396698,-0.013839722,-0.013641357,0.020462036,0.049804688,-0.05230713,0.010253906,-0.015838623,0.021362305,-0.020248413,0.0031261444,0.006160736,0.032440186,-0.016921997,-0.02607727,-0.022018433,-0.0071792603,0.0005264282,-0.041870117,-0.021865845,-0.055908203,-0.007671356,-0.021911621,-0.020019531,0.004245758,0.009681702,-0.0077056885,-0.06500244,0.0025405884,0.037872314,0.01134491,0.028625488,-0.007965088,0.050689697,0.02494812,-0.03945923,-0.005016327,0.030761719,-0.043121338,-0.01689148,-0.03744507,0.027511597,0.0124435425,-0.023239136,0.03314209,0.025238037,0.022979736,-0.016296387,0.03274536,-0.013801575,-0.003578186,0.009544373,0.03237915,-0.0061569214,0.002067566,0.045654297,-0.031829834,0.035491943,0.013519287,0.027389526,0.006839752,0.02168274,0.025970459,-0.039154053,-0.017547607,0.0030326843,0.0090789795,0.0317688,-0.02458191,0.02027893,0.038604736,0.012886047,-0.005756378,-0.0146102905,-0.010116577,-0.04598999,-0.04547119,0.022537231,0.030258179,0.025802612,0.0028896332,-0.009605408,0.020477295,0.005138397,0.010650635,-0.013595581,-0.0345459,-0.03967285,0.018753052,0.010246277,-0.010902405,-0.005607605,0.017990112,0.01739502,0.03250122,0.0070266724,0.002090454,0.0140686035,0.029174805,-0.016052246,0.0035476685,0.034606934,0.025924683,0.031829834,0.021957397,0.018554688,-0.03010559,-0.024230957,0.0146865845,0.0007004738,0.017288208,-0.012519836,-0.022079468,0.00617218,0.004261017,-0.007850647,-0.007156372,-0.008766174,-0.020736694,-0.03274536,0.0004479885,-0.013084412,0.009284973,-0.0034255981,0.0027618408,0.016906738,0.0041923523,0.041900635,-0.0010681152,0.010795593,0.031677246,0.04498291,0.02748108,-0.012237549,0.001917839,-0.02268982,-0.011054993,-0.022521973,-0.006679535,0.020477295,0.052581787,-0.0011177063,0.010940552,-0.0032405853,0.028778076,0.00012731552,-0.011726379,-0.010261536,0.021865845,-0.00541687,0.013336182,-0.05429077,-0.0034732819,0.013381958,0.028259277,-0.006828308,-0.0028820038,-0.012062073,0.015113831,0.013793945,0.0024299622,0.026794434,0.0021419525,0.024642944,-0.018173218,-0.011657715,0.01348114,-0.018066406,-0.013702393,0.028503418,-0.007896423,-0.0007443428,0.019500732,0.00026726723,0.014968872,-0.037475586,0.011665344,0.0055732727,0.006828308,-0.015960693,-0.026153564,-0.005657196,-0.020202637,-0.026428223,-0.020019531,-0.0052108765,0.027114868,0.029937744,0.032226562,0.036315918,0.02053833,0.03982544,-0.035461426,-0.031585693,-0.0064811707,-0.033966064,-0.005908966,-0.014953613,0.03225708,0.03250122,0.01348114,0.028457642,0.03878784,0.06402588,0.01864624,0.007980347,-0.0025844574,0.01763916,-0.023956299,0.008934021,-0.009719849,0.037902832,-0.012145996,0.0107040405,0.01071167,0.023727417,-0.00856781,0.008003235,0.062438965,0.00031900406,0.0028686523,0.046020508,-0.007396698,-0.020431519,-0.009651184,-0.03378296,0.05508423,0.022018433,0.03591919,0.05441284,0.006401062,0.0026798248,-0.00048971176,-0.024536133,-0.03552246,0.068725586,0.040802002,-0.05206299,-0.020904541,-0.0027198792,0.010658264,-0.041900635,-0.006679535,0.03768921,0.0124435425,0.0034255981,0.0056533813,0.008682251,-0.010353088,0.0072135925,0.03048706,0.0095825195,-0.008705139,0.038482666,0.017486572,-0.010040283,0.023513794,-0.0034008026,0.0184021,-0.030380249,-0.022888184,0.0062179565,0.026824951,-0.009010315,-0.0034694672,0.018707275,0.005344391,0.036315918,0.03555298,-0.03036499,-0.0064201355,0.008781433,0.008369446,0.0012626648,0.036254883,0.018325806,0.024841309,0.04196167,0.046295166,0.023208618,-0.008865356,0.011070251,0.0060768127,0.0024757385,-0.0049705505,-0.006351471,0.0053138733,-0.013572693,0.037017822,-0.022155762,0.016967773,0.01763916,0.017410278,-0.019165039,0.0112838745,-0.0010671616,0.011650085,-0.029891968,0.0076026917,0.018356323,-0.0074539185,0.011688232,0.032104492,0.038879395,-0.040924072,0.02168274,0.01449585,-0.0066108704,-0.0046844482,0.015548706,-0.038513184,0.00034308434,-0.0052604675,0.003168106,-0.026916504,0.014472961,0.038330078,0.004512787,0.007987976,0.01576233,-0.006351471,-0.01902771,0.03540039,0.027740479,0.00090932846,0.008834839,0.012962341,-0.009010315,0.06137085,0.010528564,-0.015327454,-0.017944336,0.011650085,0.005065918,0.0118637085,-0.0012493134,-0.009346008,-0.014129639,-0.004463196,0.019134521,0.018737793,0.00283432,0.03250122,-0.012763977,0.014297485,0.024032593,0.02267456,0.00008422136,-0.012283325,0.0025234222,0.021316528,-0.023910522,0.055908203,0.0390625,-0.0006556511,0.026687622,0.0043754578,-0.032226562,0.026519775,-0.017852783,0.03543091,-0.010009766,-0.016448975,0.0024700165,0.024169922,-0.02268982,-0.018081665,0.012786865,-0.009811401,-0.019561768,-0.020492554,0.0034484863,0.0069007874,0.014259338,0.03439331,0.028381348,-0.014328003,0.070007324,-0.0044898987,0.036071777,0.008216858,-0.01335907,0.06262207,0.004310608,0.024887085,0.019210815,0.01928711,-0.035095215,0.011299133,0.017959595,0.019989014,0.011375427,-0.0039482117,-0.004348755,0.036010742,0.002090454,0.031433105,-0.010574341,-0.028823853,0.008743286,0.005176544,-0.025878906,-0.0040130615,-0.0042762756,0.010009766,0.032806396,-0.013435364,-0.0072288513,-0.023651123,-0.017440796,0.005882263,-0.0054512024,0.0052757263,0.016586304,-0.033599854,0.00242424,-0.023040771,-0.023803711,0.013160706,-0.0027656555,-0.04119873,-0.015388489,0.044036865,0.016677856,-0.015991211,0.028137207,0.062438965,0.010948181,0.011383057,0.040374756,-0.008033752,0.023986816,-0.0126571655,0.029342651,0.03274536,0.01259613,-0.005466461,-0.0038204193,-0.00018751621,-0.025802612,0.022415161,0.030059814,-0.027145386,0.029464722,0.015411377,0.012107849,-0.0055770874,0.014984131,-0.01802063,-0.0032367706,-0.023605347,-0.035003662,0.01360321,0.012779236,-0.0079422,0.010650635,-0.009780884,-0.011741638,0.024978638,0.024551392,0.013221741,-0.03942871,0.0046195984,0.017074585,-0.003967285,-0.0068511963,-0.016677856,-0.011100769,-0.025039673,0.03616333,-0.0058250427,0.011604309,0.006969452,-0.004043579,0.0025749207,0.025970459,0.012641907,0.01448822,0.009925842,0.010627747,0.020523071,-0.0038604736,0.004699707,-0.0042686462,-0.000279665,0.0023918152,0.023864746,-0.0074653625,-0.025436401,0.008979797,-0.023208618,0.0025939941,0.016525269,0.008979797,-0.0028076172,-0.0041618347,0.010124207,0.010475159,0.026351929,-0.018432617,-0.018737793,0.0066566467,0.008453369,0.05239868,-0.01802063,0.00043606758,0.016281128,0.011657715,0.004058838,0.026565552,0.005455017,0.022491455,0.019851685,-0.011100769,-0.022659302,0.016571045,-0.0140686035,-0.0231781,0.013618469,-0.031219482,0.0012559891,0.026870728,0.02293396,-0.017654419,-0.03945923,-0.019805908,0.009681702,-0.030654907,0.019592285,-0.003129959,0.006866455,0.0018634796,0.01448822,0.021240234,-0.0015325546,-0.014389038,0.0063819885,0.015525818,-0.0077705383,-0.039642334,0.013145447,-0.0034828186,0.029647827,-0.035369873,0.016525269,-0.0044021606,0.03253174,-0.009307861,-0.018997192,0.0035686493,0.019882202,0.025756836,0.016052246,0.023132324,-0.040496826,-0.019195557,-0.023117065,0.01550293,-0.0062294006,0.023513794,0.015945435,0.029449463,0.011657715,-0.023483276,-0.0041122437,-0.010383606,-0.027832031,0.0012245178,-0.012863159,-0.020355225,0.021148682,0.016784668,-0.014312744,-0.01411438,0.025512695,0.012062073,-0.011405945,0.015289307,0.024658203,-0.0013847351,0.0368042,0.009399414,0.017700195,-0.010551453,0.0026550293,-0.0026130676,0.0019130707,-0.016418457,0.02128601,0.012741089,0.008781433,0.018814087,-0.023910522,-0.018081665,0.048431396,0.030380249,0.010391235,0.031585693,0.016433716,-0.011650085,-0.017303467,0.00039553642,0.005104065,0.031433105,0.014038086,0.018417358,0.0004441738,0.012916565,-0.008460999,0.0074653625,0.022079468,-0.018234253,-0.04925537,-0.018218994,-0.030685425,0.021392822,0.011276245,0.013893127,-0.0057525635,0.028671265,0.010429382,-0.041168213,0.0017375946,0.036987305,0.033843994,-0.014587402,-0.012939453,0.0022182465,0.015014648,-0.012687683,-0.01890564,-0.03439331,-0.026794434,-0.026626587,0.000688076,0.016906738,0.008285522,0.009338379,0.014450073,-0.006877899,0.009361267,-0.020385742,0.011581421,-0.01889038,-0.014549255,0.008918762,0.03491211,-0.0039520264,-0.014892578,0.0077209473,-0.026000977,0.013771057,0.0027694702,0.01448822,-0.012550354,0.0289917,0.0012893677,0.010925293,0.015670776,0.019165039,0.011734009,-0.033569336,-0.008995056,-0.0021381378,0.0009551048,0.02468872,-0.013534546,-0.026824951,0.014213562,0.004634857,-0.02758789,0.012786865,0.0007095337,0.04031372,-0.012168884,0.033843994,-0.035369873,-0.03466797,-0.015090942,0.008514404,-0.019638062,-0.0043792725,0.028457642,0.023117065,-0.0110321045,-0.0056877136,0.022155762,-0.019882202,-0.020553589,-0.004917145,-0.017089844,-0.0055999756,0.02279663,0.007129669,0.042175293,0.02229309,0.0061798096,0.012397766,0.018188477,0.040771484,-0.02619934,0.030166626,-0.0077819824,-0.009483337,-0.00057029724,0.0012025833,-0.01777649,0.00806427,-0.0061454773,-0.007019043,-0.023925781,0.00032663345,0.009475708,0.029373169,-0.00894165,0.0065307617,-0.008285522,-0.0021247864,-0.021759033,0.00079631805,-0.04248047,-0.014953613,0.023071289,0.019500732,0.013900757,-0.012458801,-0.010261536,0.046051025,0.037353516,-0.010261536,-0.048828125,-0.016448975,-0.0029773712,0.012901306,-0.0072364807,-0.008720398,-0.015312195,-0.0109939575,0.0023097992,0.012702942,0.029968262,-0.024368286,0.028671265,-0.0015640259,-0.026565552,-0.01928711,0.030532837,-0.0158844,-0.0072135925,-0.011024475,0.023803711,0.032104492,0.019927979,-0.022766113,0.019378662,0.01725769,-0.051452637,0.040924072,-0.014434814,0.00434494,0.0067863464,0.016662598,-0.03112793,-0.019470215,-0.018737793,0.0006904602],"createdAt":"2026-04-18T18:35:12.076Z","updatedAt":"2026-04-22T23:00:54.033Z","lastSeenAt":"2026-04-22T23:00:54.033Z","tsv":"'/api':132 '/docs':131 '/pricing':133 '/readme':135 '0.02':10,22,44,93 '000':46 '0x8335':123 '20':45 '2913':124 '402':171 '6':58 'DeFi analytics' 'DeFi liquidity API' 'ETH DeFi endpoint' 'ETH liquidity' 'Ethereum liquidity data' 'accept':62 'access':35,104 'actual':176 'advertis':103 'ai/ml':83 'analyt':82 'api':79,97 'base':9,21,47,53,117 'base-network' 'broad':72 'call':78 'captur':173 'catalog':73 'challeng':172 'confirm':169 'connect':141 'content':147 'contract':122 'cost':43 'crawl':130 'data':4,16,32,81,177 'decim':59 'defi':1,13,30 'defi-liquidity-data' 'descript':159 'detail':158 'document':125 'endpoint':26,61,164,167 'eth':2,14,34 'eth-liquidity' 'exampl':155 'extrem':127 'finance/web3':85 'gate':106 'header':112 'infer':84 'infrastructur':87 'input':180 'json':67 'key':98 'l2':118 'limit':101 'liquid':3,15,31,163 'liquidity pool data' 'live':170 'lowpaymentfee.com':28 'micropay':7,19 'network':54,119 'no-api-key' 'occur':114 'openapi':151 'oper':70 'page':136 'paramet':181 'pay':76 'pay-per-cal':75 'pay-per-request' 'payload':178 'payment':39,111 'per':11,23,77,94 'post':63 'price':90 'prompt':143 'protocol':40 'provid':29,69 'rate':100 'request':12,24,42,64,95 'request/response':154 'return':66,138,165 'schema':152 'settlement':113 'sole':107 'span':80 'spars':128 'substant':146 'uniform':91 'unit':48 'unknown':183 'usdc':50,56,121 'usdc-settlement' 'use':120 'util':88 'via':5,17,36 'wallet':142 'x402':6,18,38,110 'x402-payment'","prices":[{"id":"182a0c0d-0ee3-4c8c-8eb7-06746b681f4f","listingId":"62155884-8166-424b-b0a2-f2641b7ce875","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/defi/ETH/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:35:12.076Z"}],"sources":[{"listingId":"62155884-8166-424b-b0a2-f2641b7ce875","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/ETH/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:12.076Z","lastSeenAt":"2026-04-22T23:00:54.033Z"}],"details":{"listingId":"62155884-8166-424b-b0a2-f2641b7ce875","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/ETH/liquidity \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","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/defi/ETH/liquidity"},{"claim":"All APIs priced at $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 is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/ETH/liquidity"}],"useCases":["Querying real-time ETH liquidity metrics for DeFi dashboards","Automated agents fetching on-chain liquidity data without API key management","Pay-per-call DeFi data access for trading bots or portfolio trackers"],"bestFor":["Agents needing keyless, pay-per-call DeFi data access","Developers building on Base who want USDC-settled API calls","Low-volume or sporadic DeFi data consumers who prefer no subscriptions"],"notFor":["High-volume consumers needing bulk/discounted pricing","Users who need detailed API documentation or guaranteed SLAs before integrating","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:51.423Z"},"updatedAt":"2026-04-22T23:00:54.033Z"}}