{"id":"f81aa773-6382-431a-a124-2204055a8673","shortId":"rHxYsm","kind":"x402","title":"Get the current price of API3 token via a pay-per-call x402 endpoint on Base.","tagline":"Get the current price of API3 token via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current price of the API3 token. It is part of a broader suite of pay-per-request APIs hosted at lowpaymentfee.com, which spans data analytics, AI/ML inference, finance/Web3 market data, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint at `/api/v1/tokens/API3/price` accepts POST requests and returns JSON. The cost per request is $0.02 (20,000 base units of USDC with 6 decimals). No API keys are required; payment is handled inline via the x402 `X-PAYMENT` header. The provider advertises no rate limits and instant access.\n\nThe endpoint was confirmed live, returning a proper 402 challenge with x402 version 1. Documentation on the site is minimal — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema beyond the x402 `outputSchema` stub, and no example responses available. The token price data source and update frequency are unknown.","tags":[],"capabilities":["token-price-lookup","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","json-response"],"categories":["finance","crypto"],"synonyms":["API3 price","token price API","crypto price feed","API3 USD price","x402 price endpoint","pay-per-call crypto data","Base USDC API"],"warnings":["No OpenAPI or detailed API documentation available — docs pages render only 'Connect wallet'","No example request or response bodies documented; response schema is unknown","Data source and update frequency for API3 token price are not disclosed","The endpoint path suggests token-specific pricing but no list of supported tokens is documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/API3/price","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/API3/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no example payloads, and the documentation pages are empty beyond a wallet-connect prompt. The actual data source and response format are unknown.","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":"2026-04-18T20:18:33.363Z","embedding":[-0.039886475,-0.021652222,0.050964355,-0.021270752,0.017333984,-0.04586792,0.0017881393,0.031433105,0.06384277,-0.079711914,-0.00919342,-0.031951904,-0.04711914,-0.052459717,-0.039245605,-0.008590698,0.0070648193,-0.02015686,-0.041015625,0.014259338,0.023757935,-0.008857727,-0.04360962,0.028045654,-0.0009851456,-0.0119018555,0.012939453,-0.014724731,-0.033966064,-0.0395813,0.017944336,-0.019348145,-0.022369385,0.009483337,-0.031066895,-0.007545471,-0.019073486,0.024414062,0.044189453,-0.034973145,0.006954193,-0.023529053,-0.023010254,0.0115737915,-0.039276123,-0.01272583,0.00667572,-0.020233154,-0.010284424,-0.0075035095,-0.03378296,-0.0013208389,-0.025161743,0.02166748,0.000113129616,0.0211792,-0.0034980774,-0.009262085,0.022140503,-0.011177063,-0.0030593872,-0.066711426,0.003993988,-0.015701294,-0.006526947,0.05441284,0.014305115,0.059692383,-0.0017004013,0.03955078,0.04324341,0.05429077,0.016799927,0.013908386,-0.016357422,0.012519836,-0.017303467,0.043029785,0.0051612854,-0.04171753,-0.027999878,-0.03125,-0.066589355,0.018432617,0.0065460205,-0.046020508,0.0012245178,-0.012565613,-0.009025574,0.03010559,-0.08270264,-0.013206482,0.009857178,-0.0058135986,-0.03286743,-0.034729004,-0.014434814,0.0062828064,-0.009017944,0.018005371,-0.010215759,-0.02784729,0.026504517,0.029800415,0.025878906,0.038970947,0.028533936,-0.0015354156,-0.0030517578,-0.021377563,-0.034942627,0.051483154,-0.013046265,-0.026000977,-0.015342712,0.031204224,-0.0093688965,0.0059280396,-0.019515991,-0.018981934,-0.034942627,0.020050049,0.031433105,0.011474609,0.016616821,-0.037506104,-0.0070724487,-0.026000977,-0.03451538,-0.021026611,0.023788452,0.015411377,0.04446411,-0.012825012,-0.0036144257,-0.03036499,-0.022262573,0.0015678406,-0.04156494,-0.008644104,0.040527344,-0.032806396,0.00749588,0.022125244,-0.09967041,-0.0008444786,-0.019592285,-0.017562866,-0.020980835,-0.0024337769,-0.008514404,0.0047340393,-0.013748169,-0.029525757,-0.013198853,-0.017166138,0.017852783,0.02281189,0.023757935,0.03643799,-0.052734375,0.046203613,0.019561768,-0.016082764,0.0009088516,0.041870117,0.02027893,-0.061340332,-0.078430176,-0.026412964,0.029312134,-0.0124053955,-0.046142578,-0.017303467,-0.01902771,-0.07733154,-0.0036239624,0.029190063,-0.001912117,-0.0079574585,0.011833191,-0.042419434,0.013420105,0.001964569,-0.001584053,0.013450623,-0.030685425,0.05493164,0.023223877,0.05001831,0.01272583,0.0024147034,0.028961182,-0.0015926361,-0.018814087,-0.04562378,0.008598328,-0.015052795,0.05090332,0.028396606,0.06439209,-0.016998291,0.032287598,0.050079346,0.039215088,-0.022216797,0.018844604,-0.044403076,-0.045410156,-0.022628784,0.02229309,0.0004594326,-0.008605957,0.006855011,-0.033294678,-0.015335083,-0.022354126,0.027542114,0.003074646,0.060821533,-0.0013132095,0.00016129017,0.049194336,0.013122559,-0.017410278,0.028305054,0.029006958,0.024902344,0.0010652542,-0.04269409,0.017974854,0.034729004,-0.0048942566,0.00730896,-0.008773804,0.025619507,-0.007472992,0.006248474,0.0071868896,-0.014259338,-0.030410767,-0.032958984,-0.019699097,0.046447754,-0.0035934448,-0.041381836,-0.008460999,-0.08300781,0.03668213,0.054992676,0.015792847,0.018676758,0.018798828,-0.015426636,0.0067863464,-0.027954102,0.026229858,0.06854248,-0.023208618,-0.033996582,0.024993896,0.01285553,-0.030761719,-0.024749756,-0.002790451,-0.029968262,-0.008102417,0.04336548,-0.04095459,-0.009063721,0.029190063,0.004840851,0.05456543,-0.015235901,-0.031951904,-0.032714844,-0.025299072,0.018432617,-0.019485474,-0.0032787323,-0.0015153885,0.03488159,0.05432129,0.007537842,-0.005996704,-0.00097227097,0.029968262,0.013870239,-0.006778717,-0.033966064,-0.022323608,0.012237549,0.016342163,-0.00793457,-0.009681702,0.013977051,0.05255127,-0.05053711,0.025894165,-0.016723633,0.0011863708,0.03488159,-0.0115356445,-0.03488159,0.0017023087,0.013496399,0.011703491,0.0033435822,-0.01159668,-0.025848389,-0.013549805,0.080200195,-0.027542114,-0.049713135,0.013725281,0.014549255,0.014541626,0.0039749146,-0.07574463,-0.020401001,0.017410278,-0.017044067,0.028442383,-0.020523071,0.01902771,-0.042266846,0.026977539,-0.02619934,0.01146698,-0.016693115,0.026016235,-0.024780273,0.00907135,-0.033691406,-0.0129470825,0.061645508,0.00016498566,0.00010126829,0.016403198,0.04119873,0.028167725,0.00409317,-0.029220581,-0.045013428,-0.01423645,-0.03062439,-0.0014190674,-0.012588501,0.03527832,0.025802612,-0.033325195,0.012870789,0.03857422,-0.028656006,0.015136719,-0.002822876,-0.03062439,-0.05987549,-0.041046143,-0.022705078,-0.038269043,0.028030396,-0.0041618347,-0.004875183,0.04849243,-0.005619049,-0.038360596,-0.025253296,-0.0021972656,-0.043548584,-0.0058403015,0.020462036,-0.017425537,-0.03387451,-0.006591797,-0.0289917,0.013313293,0.03894043,0.008110046,0.000017285347,0.03652954,-0.011978149,0.009155273,0.022644043,0.0026340485,0.0038337708,-0.009918213,0.008140564,-0.027114868,0.0025596619,0.043151855,-0.02142334,-0.027816772,-0.06677246,0.04522705,0.0126571655,0.054504395,0.014282227,0.021514893,0.0670166,-0.005531311,0.009033203,-0.03366089,-0.05606079,0.0045700073,-0.024169922,0.040802002,-0.0050315857,-0.0065574646,-0.033935547,0.02482605,0.0050811768,0.022415161,-0.03286743,0.039886475,0.028915405,-0.007850647,0.026412964,0.024337769,0.050354004,0.05343628,-0.04989624,0.03213501,0.0132751465,-0.047668457,0.015701294,0.025848389,-0.014389038,-0.015388489,-0.03366089,-0.0035057068,0.014656067,-0.01626587,-0.048339844,-0.0057640076,0.04196167,0.013641357,0.0047683716,0.014831543,0.022354126,-0.035247803,-0.026794434,-0.050079346,-0.0055389404,-0.052459717,0.0013170242,0.018615723,-0.051330566,-0.02168274,0.027740479,-0.0033073425,-0.029220581,0.0029850006,0.048339844,0.019927979,-0.028182983,0.043518066,0.004940033,-0.022491455,0.064331055,0.01876831,0.009086609,0.012252808,0.016738892,-0.0033454895,-0.047729492,-0.031341553,0.050689697,-0.030776978,-0.037200928,0.0066223145,-0.022766113,-0.02609253,-0.028869629,-0.027954102,0.005191803,0.011306763,-0.051513672,0.014961243,0.037231445,-0.008895874,0.0012140274,-0.049926758,-0.009986877,0.0025539398,0.06036377,0.022781372,-0.016021729,-0.048431396,-0.009117126,0.047546387,-0.01828003,0.00667572,-0.010986328,-0.0018043518,0.003004074,-0.048828125,-0.0031967163,0.013046265,0.038391113,-0.0023612976,0.00053977966,0.03668213,0.015914917,0.033081055,0.011871338,0.003665924,0.052825928,-0.023284912,-0.0040779114,-0.022338867,0.008850098,0.025848389,-0.0051002502,-0.040252686,0.008270264,-0.007911682,0.020858765,-0.03555298,0.008911133,0.010543823,0.016204834,0.04385376,-0.018493652,0.013687134,-0.017196655,-0.059326172,-0.053497314,0.02684021,-0.032806396,0.03277588,0.015167236,0.009361267,0.031082153,-0.014045715,0.03567505,0.03050232,0.0048942566,-0.041229248,-0.032592773,-0.036193848,-0.0066566467,-0.01586914,-0.0104522705,0.015068054,-0.018676758,0.021377563,-0.006351471,-0.0110321045,0.039489746,0.04156494,-0.0034275055,-0.000497818,-0.02067566,0.015472412,0.013221741,0.011833191,-0.04473877,0.04623413,0.01676941,-0.00019919872,-0.020965576,0.02178955,0.02947998,0.01979065,-0.00068569183,0.0063056946,-0.019165039,-0.02406311,0.0026340485,0.0368042,0.032806396,0.011314392,-0.006877899,0.021270752,0.033599854,-0.010643005,-0.033233643,0.025650024,0.033294678,-0.0181427,0.0071487427,0.02758789,0.04940796,-0.012275696,0.026229858,0.005050659,0.062927246,0.022521973,0.008148193,-0.003030777,0.013557434,-0.022460938,-0.004627228,-0.013557434,-0.00844574,0.027679443,0.014213562,0.03186035,0.02078247,-0.005054474,0.007987976,-0.053619385,0.026931763,-0.019699097,0.02017212,0.029449463,-0.005016327,-0.013847351,-0.0012025833,0.016098022,-0.007858276,-0.005493164,0.00018882751,0.00315094,0.02973938,-0.004688263,-0.00881958,0.020523071,0.035827637,0.0181427,-0.041656494,0.018234253,0.008132935,0.0041503906,-0.020248413,-0.038116455,-0.04437256,0.0009088516,0.023544312,0.0020313263,0.030029297,0.007396698,-0.010574341,0.02720642,0.027893066,0.0066871643,-0.0057258606,-0.021133423,-0.03466797,-0.015159607,0.029052734,-0.010818481,-0.011421204,0.001540184,-0.03756714,-0.035095215,0.013931274,-0.014259338,-0.024459839,0.009086609,-0.0066986084,0.03967285,0.0016069412,0.026535034,-0.023605347,-0.031219482,0.04171753,0.019546509,-0.0075187683,-0.037597656,0.037475586,-0.0058021545,0.02746582,-0.0033798218,0.019851685,0.010246277,0.017044067,0.019180298,0.014694214,-0.043640137,0.02229309,-0.033996582,0.0061302185,0.018692017,-0.004524231,0.0043678284,-0.024215698,-0.033081055,0.042053223,-0.03744507,0.0011987686,-0.029525757,-0.047821045,0.009346008,-0.039031982,0.005592346,0.017303467,0.023345947,-0.0021381378,-0.000664711,0.013793945,0.008071899,-0.005004883,-0.00044894218,-0.031219482,0.027893066,0.019302368,0.008895874,-0.0046920776,-0.0004374981,-0.020126343,-0.0012321472,-0.070007324,-0.0345459,-0.0071411133,0.02053833,-0.016723633,0.0041999817,-0.029846191,-0.04437256,0.010772705,-0.031707764,0.020629883,0.0028705597,0.0345459,-0.0026226044,0.0043144226,-0.0040893555,0.013999939,-0.0010318756,0.053253174,0.005317688,0.006668091,-0.026443481,-0.016998291,0.00856781,0.010238647,-0.020217896,-0.029922485,-0.016464233,-0.04989624,-0.07232666,-0.010002136,0.023757935,-0.010437012,-0.010650635,0.01210022,-0.036193848,-0.0020217896,-0.006389618,0.002702713,0.0031204224,0.014328003,0.010398865,0.012107849,0.01474762,-0.0028953552,-0.0007162094,-0.020080566,0.026489258,0.0067863464,-0.007701874,0.0057907104,0.026992798,0.005092621,-0.0074806213,-0.014793396,0.01977539,0.010063171,-0.01789856,-0.01689148,-0.0027484894,0.02456665,-0.028396606,0.0035800934,-0.061187744,0.010353088,0.06707764,0.003791809,-0.02305603,0.0013608932,-0.029846191,0.005012512,0.03125,-0.04550171,-0.00856781,-0.023269653,0.01449585,-0.05307007,-0.00472641,-0.00037693977,0.0032901764,-0.030731201,-0.036834717,0.02973938,-0.0042648315,0.0076141357,-0.043884277,-0.011627197,-0.041046143,0.016433716,-0.012702942,-0.008926392,-0.0031738281,0.008872986,-0.0036411285,-0.049713135,-0.002204895,0.03817749,0.018753052,0.036834717,0.000374794,0.028869629,0.023269653,-0.053985596,-0.008842468,0.037719727,-0.015579224,-0.0036525726,-0.012084961,0.024993896,0.010681152,-0.012084961,0.017578125,-0.008041382,0.022644043,-0.002494812,0.0211792,0.0029258728,0.016921997,-0.022857666,0.022583008,-0.011955261,0.017242432,0.023757935,-0.035980225,0.012016296,0.01007843,0.014266968,0.024505615,0.019638062,0.012237549,-0.04043579,0.015335083,0.0124053955,0.0046424866,0.054779053,-0.03805542,0.03488159,0.02583313,-0.00756073,-0.005306244,-0.0206604,-0.005760193,-0.02947998,-0.049560547,0.06878662,0.010597229,0.0082473755,0.00049209595,0.0076141357,-0.0060424805,0.017791748,0.012809753,-0.014984131,-0.03488159,-0.01008606,0.011878967,-0.011802673,0.001288414,-0.023162842,0.023086548,0.04260254,0.029708862,-0.0062026978,-0.008300781,-0.008323669,0.0340271,0.02331543,-0.006538391,0.025756836,-0.011199951,0.011459351,0.025054932,0.0016393661,-0.061065674,-0.007472992,-0.037719727,0.008811951,0.012191772,0.00223732,-0.0017528534,0.0031642914,0.0024528503,0.0046577454,-0.029312134,-0.0129470825,-0.020477295,-0.010368347,-0.0028915405,-0.008415222,0.013008118,0.0067596436,-0.0028266907,-0.017501831,-0.008224487,0.034423828,-0.023391724,-0.017044067,0.033416748,0.027282715,0.023773193,-0.032806396,-0.012367249,-0.014480591,-0.018051147,-0.01285553,-0.04171753,0.015792847,0.046539307,-0.013397217,0.030593872,0.00094747543,0.0062179565,-0.019302368,-0.002948761,-0.003791809,0.012763977,-0.014198303,0.026321411,-0.04574585,0.011528015,0.0023784637,0.013427734,-0.018463135,-0.013198853,-0.028869629,-0.0012016296,-0.009811401,-0.0105896,0.0211792,-0.0115737915,0.026809692,-0.00749588,0.00894165,0.013923645,-0.02116394,-0.035491943,0.015930176,-0.0073394775,-0.01159668,0.005619049,-0.039733887,0.014259338,-0.012802124,0.02067566,0.023208618,0.016601562,-0.00028181076,-0.024734497,-0.0065994263,-0.0038852692,-0.027328491,-0.022918701,0.004470825,0.058776855,0.019729614,0.0395813,0.044525146,0.022644043,0.0032634735,-0.053009033,-0.0084991455,-0.017318726,-0.018066406,0.03250122,0.009605408,0.050079346,0.023880005,-0.010887146,0.031311035,0.010475159,0.01235199,0.008460999,0.031982422,-0.0008854866,-0.0026664734,-0.014831543,0.009765625,-0.01914978,0.014213562,-0.044677734,0.013397217,0.026504517,0.043914795,-0.023849487,0.034301758,0.046539307,0.023071289,0.0020561218,0.039367676,-0.017593384,0.0077781677,-0.01939392,-0.007724762,0.060638428,0.014343262,0.050201416,0.033935547,0.0004506111,-0.006626129,-0.006412506,-0.025131226,-0.036376953,0.052001953,0.05722046,-0.015007019,-0.03643799,-0.0064353943,0.0029067993,-0.042907715,-0.033599854,0.04550171,-0.031219482,0.008476257,0.0033798218,-0.026397705,-0.012168884,0.014419556,-0.0040130615,0.00642395,-0.020767212,0.04107666,0.021453857,0.016021729,0.017547607,-0.007408142,0.035491943,-0.042297363,-0.02545166,0.03942871,0.03112793,-0.011138916,-0.01461792,0.023864746,-0.0032253265,0.06365967,0.048065186,-0.020767212,0.0048065186,0.022216797,0.019897461,0.0016784668,0.055725098,0.04046631,0.016082764,0.04949951,0.033294678,0.00756073,-0.009757996,0.028137207,0.028335571,0.023880005,0.0068626404,-0.018234253,-0.009101868,-0.006511688,0.022415161,-0.030426025,0.002746582,-0.006576538,0.022583008,-0.016311646,0.018707275,-0.0040779114,0.027069092,0.02017212,0.012672424,0.020141602,-0.013885498,0.023468018,0.011703491,0.03970337,-0.03213501,0.04611206,-0.0015296936,-0.03427124,-0.020523071,0.018737793,-0.02947998,0.016098022,-0.014320374,0.010131836,-0.01235199,0.018630981,0.014167786,-0.010795593,0.01828003,0.017105103,-0.025924683,0.013381958,0.042755127,0.02420044,0.006187439,-0.0013570786,-0.011634827,0.036376953,0.045318604,0.018859863,0.012214661,0.002456665,0.022399902,0.022766113,0.0070114136,0.008201599,-0.0098724365,-0.0051116943,-0.026489258,-0.0016975403,0.038635254,-0.004310608,0.039215088,-0.011688232,-0.021514893,0.0045928955,0.028182983,0.018081665,0.0028572083,-0.033111572,0.023757935,-0.021026611,0.03289795,0.047698975,0.00087070465,0.02835083,-0.0021076202,-0.013198853,0.0011758804,-0.0021781921,0.012275696,-0.03665161,-0.010047913,0.014328003,0.0368042,-0.0031147003,-0.024017334,-0.006626129,-0.028823853,-0.030670166,-0.035003662,0.016342163,0.017929077,0.042816162,0.038391113,0.01083374,-0.009841919,0.05618286,0.005142212,0.035980225,-0.007472992,0.0051460266,0.04852295,0.009819031,0.020645142,-0.012825012,-0.010688782,-0.026245117,-0.00093984604,0.03253174,0.016052246,0.0035533905,0.022460938,-0.0064811707,0.030380249,0.014152527,0.030273438,-0.014175415,0.0048561096,0.021224976,0.016220093,-0.017028809,0.006996155,-0.0033187866,0.0057754517,0.04711914,-0.014122009,-0.016967773,0.0005426407,-0.010848999,0.021942139,0.0020866394,-0.00491333,-0.013511658,-0.021865845,0.0037956238,-0.021636963,-0.009269714,0.0044937134,0.020233154,-0.032348633,-0.030059814,0.009941101,0.028442383,-0.017745972,-0.00019288063,0.028213501,0.011795044,0.016693115,0.034240723,-0.005455017,0.013031006,0.005558014,0.031555176,-0.0014877319,-0.0017776489,-0.01826477,0.0070533752,0.015609741,-0.015464783,0.00642395,-0.012367249,-0.0019016266,0.028442383,-0.0019741058,-0.002796173,-0.006412506,0.021881104,-0.0014476776,0.008605957,-0.017089844,0.0039978027,-0.010032654,-0.00737381,0.017593384,-0.010299683,-0.020980835,-0.008026123,0.015701294,0.031707764,-0.0006933212,-0.043273926,0.0061187744,0.024780273,0.0256958,-0.005256653,-0.006225586,0.024337769,-0.016860962,0.008621216,0.013465881,0.017684937,0.0017652512,-0.025405884,-0.0113220215,0.038116455,0.026748657,0.032409668,-0.00472641,-0.009765625,0.0011501312,-0.009765625,-0.017547607,-0.0109939575,-0.014663696,0.007507324,0.016616821,0.0006198883,-0.005054474,0.028167725,0.00029087067,-0.026412964,0.03314209,-0.015640259,0.011062622,-0.0021038055,-0.014305115,0.012542725,-0.00024414062,-0.024032593,-0.005493164,-0.003660202,0.019424438,0.051940918,0.020935059,0.0012454987,0.0038414001,0.009857178,-0.023910522,0.024429321,0.0060272217,0.052490234,0.018661499,-0.023147583,-0.012496948,0.03527832,-0.00040769577,-0.030273438,0.011291504,0.006679535,-0.026626587,0.022964478,0.036071777,-0.0033054352,-0.017745972,-0.014656067,-0.0155181885,-0.011360168,-0.0026435852,-0.03390503,-0.0017900467,0.0025100708,-0.014640808,-0.005756378,0.01247406,-0.059509277,0.004043579,0.015312195,-0.012207031,-0.057281494,0.0076179504,-0.037475586,-0.004360199,-0.029708862,0.0077819824,0.0074043274,0.026138306,0.004928589,-0.017242432,0.006866455,0.026550293,0.02861023,-0.0010938644,0.009140015,-0.004261017,-0.017822266,-0.011550903,-0.0017490387,-0.03237915,0.033813477,0.0043296814,0.03237915,0.01725769,-0.002691269,-0.006175995,-0.0033721924,-0.011650085,0.016448975,-0.027252197,-0.03488159,0.024810791,0.024658203,-0.01826477,-0.011169434,0.019134521,-0.015365601,-0.0134887695,0.012306213,0.08148193,-0.0013408661,0.03277588,-0.014503479,-0.0041999817,-0.020324707,0.012611389,-0.01977539,0.023498535,0.01008606,-0.0012178421,0.0025959015,0.0033798218,0.017089844,-0.009941101,0.001247406,0.03488159,0.03591919,-0.009338379,0.0519104,0.022415161,-0.005458832,-0.004737854,-0.014198303,0.025268555,0.036102295,0.02079773,-0.0062294006,-0.0053863525,0.0027923584,-0.008781433,0.01486969,0.011924744,0.0079574585,-0.043304443,-0.012237549,-0.04147339,0.029312134,0.01234436,0.0077705383,-0.02029419,-0.0012378693,-0.01878357,-0.03265381,-0.013496399,0.026138306,0.012893677,-0.003917694,-0.0036754608,0.007297516,0.0049591064,-0.02468872,-0.0054244995,-0.047546387,-0.004878998,0.005279541,0.007194519,0.020980835,0.0069732666,-0.022125244,0.010414124,-0.004322052,0.0023555756,0.0018815994,0.034088135,-0.01965332,0.0038223267,-0.0008034706,0.049560547,-0.0038833618,-0.0009727478,-0.035369873,-0.0018348694,0.021942139,-0.017028809,0.024917603,-0.019546509,0.040283203,-0.007926941,-0.015609741,0.011581421,-0.022888184,0.031555176,-0.03302002,-0.011703491,0.0020599365,-0.0036258698,0.024307251,0.0046539307,-0.0064048767,0.006755829,0.007873535,-0.011077881,-0.017990112,0.017837524,0.029190063,-0.015052795,0.033294678,-0.028442383,-0.0075912476,0.0017604828,0.014640808,-0.029800415,0.0040626526,0.022994995,-0.006450653,-0.012611389,-0.024734497,-0.005252838,-0.037872314,-0.021865845,0.011909485,-0.01725769,-0.010787964,-0.0017328262,0.0007658005,0.040893555,-0.00712204,0.029586792,0.030776978,0.013885498,0.017745972,-0.015716553,0.025924683,-0.01737976,0.0065345764,0.021469116,0.016494751,-0.007637024,-0.004722595,0.009223938,-0.011482239,-0.025268555,-0.0057296753,-0.015266418,0.030975342,-0.011512756,-0.0052871704,-0.028427124,0.006832123,-0.028747559,-0.01953125,-0.024734497,0.0056533813,0.043029785,0.0012702942,0.0129852295,-0.01689148,-0.0126571655,0.02027893,0.05935669,0.012260437,-0.027999878,-0.019577026,0.015625,-0.00028395653,0.017593384,0.009216309,-0.031707764,0.002664566,-0.002506256,-0.018341064,0.019592285,-0.021087646,0.012039185,0.016540527,-0.019836426,-0.022827148,0.052124023,-0.009529114,-0.024810791,-0.0059165955,-0.0032348633,0.045776367,0.03125,0.00056505203,0.011810303,0.0036582947,-0.015312195,0.07171631,-0.015411377,0.013557434,-0.0068244934,-0.004497528,-0.030227661,0.012901306,-0.0050201416,0.012306213],"createdAt":"2026-04-18T18:32:53.988Z","updatedAt":"2026-04-23T20:01:24.108Z","lastSeenAt":"2026-04-23T20:01:24.108Z","tsv":"'/api/v1/tokens/api3/price':91 '0.02':103 '000':105 '1':151 '20':104 '402':146 '6':111 'API3 USD price' 'API3 price' 'Base USDC API' 'accept':92 'access':137 'addit':174 'advertis':131 'ai/ml':65 'analyt':64 'api':57,114,161 'api3':6,23,43 'avail':194 'base':17,34,85,106 'base-network' 'beyond':185 'broader':50 'call':13,30 'challeng':147 'confirm':141 'connect':169 'cost':99 'crypto price feed' 'current':3,20,39 'data':63,69,198 'decim':112 'detail':176 'doc':159 'document':152 'endpoint':15,32,36,74,89,139 'exampl':192 'finance/web3':67 'frequenc':202 'get':1,18 'handl':120 'header':128 'host':58 'infer':66 'inlin':121 'instant':136 'json':97 'json-response' 'key':115 'limit':134 'live':142 'lowpaymentfee.com':60 'market':68 'minim':157 'network':86 'no-api-key' 'openapi':180 'outputschema':188 'page':164 'part':47 'pay':11,28,54 'pay-per-cal':10,27 'pay-per-call crypto data' 'pay-per-request':53 'payment':78,118,127 'per':12,29,55,100 'post':93 'price':4,21,40,160,197 'prompt':171 'proper':145 'protocol':79 'provid':130 'rate':133 'readm':163 'render':166 'request':56,94,101 'request/response':183 'requir':117 'respons':193 'return':37,96,143 'schema':184 'servic':72 'settl':80 'site':155 'sourc':199 'span':62 'spec':181 'specif':88 'stub':189 'suit':51 'technic':175 'token':7,24,44,196 'token price API' 'token-price-lookup' 'unit':107 'unknown':204 'updat':201 'usdc':82,109 'usdc-settlement' 'use':75 'util':71 'version':150 'via':8,25,122 'wallet':170 'x':126 'x-payment':125 'x402':14,31,77,124,149,187 'x402 price endpoint' 'x402-payment'","prices":[{"id":"849634ea-c854-439c-aace-707210862fb3","listingId":"f81aa773-6382-431a-a124-2204055a8673","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/API3/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:53.988Z"}],"sources":[{"listingId":"f81aa773-6382-431a-a124-2204055a8673","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/API3/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:53.988Z","lastSeenAt":"2026-04-23T20:01:24.108Z"}],"details":{"listingId":"f81aa773-6382-431a-a124-2204055a8673","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/API3/price \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with x402 version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/tokens/API3/price"},{"claim":"All APIs on the platform cost $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/API3/price"}],"useCases":["Fetching the current API3 token price for portfolio tracking or trading bots","Integrating real-time API3 pricing into a DeFi dashboard","Agent-driven price checks without managing API keys or subscriptions"],"bestFor":["Agents or bots that need on-demand API3 token pricing without subscription overhead","Developers who prefer crypto-native pay-per-call billing on Base","Low-volume or sporadic price lookups where $0.02/request is acceptable"],"notFor":["High-frequency trading requiring sub-second latency and bulk pricing (no documented SLA or latency guarantees)","Users needing historical price data or OHLCV candles (only current price is indicated)","Anyone requiring detailed API documentation or guaranteed uptime SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T09:46:14.474Z"},"updatedAt":"2026-04-23T20:01:24.108Z"}}