{"id":"eafc6c0d-5b20-4dd0-8b3b-9605fbad09b0","shortId":"MAVeMG","kind":"x402","title":"Send a 1 USDC tip on Base via x402 payment protocol to a specified wallet address.","tagline":"Send a 1 USDC tip on Base via x402 payment protocol to a specified wallet address.","description":"This endpoint implements the x402 payment protocol to let callers send a tip (\"buy a coffee\") to wallet address 0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2. It runs on the x402-poc.vercel.app proof-of-concept platform, which allows users to create x402-based tip links.\n\nThe endpoint accepts a GET request with an X-PAYMENT header containing a valid x402 payment proof. The payment scheme is \"exact\" on the Base network, requiring up to 1,000,000 units (1 USDC, given 6 decimals) of the USDC token (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The x402 challenge version is 1, and the maximum timeout for payment settlement is 300 seconds. Upon successful payment verification, the endpoint returns an application/json response.\n\nThis is a proof-of-concept / demo deployment. There is no documentation site, no OpenAPI spec, and no pricing page beyond what the x402 challenge itself communicates. The landing page at x402-poc.vercel.app offers a simple UI to create tip links. Because this is a PoC, stability and long-term availability are not guaranteed.","tags":[],"capabilities":["x402-payment","usdc-tipping","base-network","exact-payment-scheme","crypto-micropayment"],"categories":["payments","crypto"],"synonyms":["x402 tip","buy a coffee crypto","USDC tip link","Base network payment","x402 micropayment","crypto tipping","402 payment required"],"warnings":["Proof-of-concept deployment — no stability or uptime guarantees","No documentation, OpenAPI spec, or usage examples available","No information on what the successful response body contains","Wallet address is hardcoded in the URL; unclear if the endpoint is maintained long-term"],"endpointUrl":"https://x402-poc.vercel.app/api/0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2/coffee","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://x402-poc.vercel.app/api/0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2/coffee","description":"buy 0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2 a coffee. ","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"1000000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a well-formed x402 challenge, but there is no documentation, no OpenAPI spec, no example responses, and the platform is explicitly a proof-of-concept. Almost all details are inferred from the 402 challenge alone.","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":"2026-04-18T19:38:42.122Z","embedding":[-0.022583008,-0.04660034,0.045013428,0.008132935,-0.010818481,-0.056396484,0.02748108,0.030563354,0.050476074,-0.06781006,0.026062012,-0.00308609,-0.032989502,-0.06109619,0.011711121,0.015129089,0.0070228577,0.004096985,-0.030548096,0.053710938,-0.0035896301,0.005859375,0.0033626556,0.022994995,-0.0009908676,-0.020050049,-0.025421143,0.02394104,-0.011360168,-0.03643799,0.017059326,-0.02192688,-0.02798462,-0.0015459061,-0.016860962,-0.013320923,0.021484375,0.045043945,-0.013542175,0.03152466,-0.00010704994,-0.053100586,0.024353027,-0.004699707,-0.04135132,0.022537231,0.016662598,-0.013877869,0.0027046204,0.00945282,-0.010482788,0.012046814,-0.024765015,0.021575928,-0.03942871,-0.00094747543,-0.007972717,0.0036849976,0.038848877,0.038848877,-0.005180359,-0.046020508,-0.01360321,-0.0017700195,0.02168274,0.04260254,-0.033721924,0.035614014,0.0007572174,0.083740234,0.037963867,0.047088623,0.019927979,-0.0011062622,0.02720642,-0.019500732,0.0061798096,0.0357666,-0.0025100708,-0.056671143,0.006275177,-0.051818848,-0.046783447,-0.003004074,-0.03479004,-0.060180664,-0.040008545,0.012329102,-0.027328491,0.028625488,-0.062438965,-0.023880005,0.015045166,0.024307251,0.002796173,-0.037353516,-0.038116455,-0.007381439,0.0007543564,0.01802063,0.025985718,-0.023071289,0.01121521,0.002796173,0.045715332,0.029632568,0.027450562,0.032318115,0.0014467239,-0.013656616,-0.04119873,0.012840271,0.004878998,-0.007041931,0.026550293,0.005622864,0.010536194,-0.017364502,-0.02281189,0.024307251,-0.05154419,0.04135132,-0.021438599,0.01576233,-0.028121948,-0.06604004,-0.028793335,0.00819397,-0.018722534,-0.0026493073,0.004623413,-0.002626419,0.0001578331,0.0025844574,-0.021575928,0.023910522,-0.03137207,-0.0073242188,-0.052093506,0.008056641,0.0104904175,-0.036468506,0.025970459,0.03781128,-0.049621582,-0.04144287,-0.024414062,0.024642944,-0.03479004,-0.0069351196,0.017028809,-0.0068626404,-0.017608643,-0.0069007874,-0.027160645,-0.04067993,-0.02973938,0.053253174,-0.049591064,-0.004371643,0.015975952,0.011856079,0.0099487305,-0.0051460266,0.0059432983,0.030441284,-0.024658203,-0.056274414,-0.0690918,-0.020690918,-0.023666382,-0.018096924,-0.02670288,0.014259338,-0.018859863,-0.07385254,-0.0079193115,0.007286072,0.019989014,-0.010353088,0.04058838,-0.012214661,0.009262085,0.006919861,-0.055480957,-0.006591797,-0.033935547,0.06365967,0.022583008,0.0090408325,0.022033691,0.0014019012,0.016113281,0.028518677,-0.003129959,-0.026367188,0.018173218,-0.011993408,0.03656006,-0.01576233,0.029586792,0.02154541,0.033569336,0.088256836,-0.017059326,-0.024414062,0.0012454987,-0.04043579,-0.057495117,-0.012825012,0.0131073,0.007080078,-0.038024902,0.0019950867,-0.051208496,-0.03074646,0.012901306,0.030471802,-0.016036987,0.044830322,-0.01007843,-0.01701355,0.050720215,0.030548096,-0.017501831,0.07489014,0.013435364,0.032806396,-0.011695862,-0.011955261,0.018478394,0.022491455,0.0020484924,0.02166748,-0.021713257,0.036987305,-0.0045928955,-0.0045928955,-0.027908325,-0.04260254,-0.032287598,0.002817154,-0.016693115,-0.0121154785,0.017410278,-0.017990112,-0.028717041,-0.06323242,0.050720215,0.04638672,0.0418396,0.011238098,-0.012062073,-0.034423828,-0.0088272095,-0.05810547,0.04824829,0.054718018,0.009223938,-0.03579712,0.031311035,-0.029449463,-0.051971436,0.008605957,-0.011367798,-0.020645142,0.018157959,-0.015312195,-0.0129852295,0.0028762817,0.016967773,0.03640747,0.03250122,0.026748657,-0.048828125,0.006713867,-0.031204224,-0.0033493042,-0.039886475,-0.034576416,-0.025863647,0.001033783,0.01725769,0.009963989,0.005367279,0.021316528,-0.015586853,-0.000112593174,0.021514893,-0.00472641,0.010597229,0.04397583,0.0112838745,-0.02758789,0.024002075,0.011390686,0.04119873,-0.062805176,0.040161133,0.002117157,-0.0022296906,0.06732178,-0.009490967,-0.06768799,-0.006122589,0.009529114,0.018615723,0.037628174,0.026245117,-0.010597229,-0.04269409,0.0501709,-0.012992859,-0.0013780594,0.026351929,0.014801025,0.049072266,0.005935669,-0.038391113,-0.016677856,-0.020462036,-0.00036096573,0.021408081,-0.0002503395,0.02935791,-0.012321472,0.014167786,-0.024230957,0.0031471252,-0.029403687,-0.0037517548,-0.016616821,0.0135269165,0.01134491,-0.018127441,-0.014602661,-0.0033950806,0.0044784546,0.032714844,0.07861328,0.006504059,-0.015235901,0.012069702,-0.032562256,-0.043914795,-0.015945435,0.018966675,-0.0110321045,0.03640747,0.03579712,-0.04446411,0.002840042,0.022903442,-0.004837036,0.04257202,0.02998352,0.002161026,-0.06829834,-0.05996704,-0.037963867,-0.02520752,0.0284729,0.012161255,0.0027885437,0.051696777,-0.0018787384,-0.012664795,-0.039001465,-0.004863739,-0.036346436,-0.027359009,0.046966553,-0.025421143,-0.017990112,0.016998291,0.028198242,0.004173279,0.041625977,0.03677368,0.029296875,0.0847168,0.015487671,-0.030975342,0.015197754,0.01953125,0.0019721985,0.04067993,0.014045715,0.0030212402,-0.07989502,0.01965332,-0.027938843,-0.032073975,-0.020431519,0.06524658,0.061340332,0.056518555,0.016448975,0.0032482147,0.031051636,0.0018815994,-0.02406311,-0.01574707,-0.04006958,-0.032714844,-0.020904541,0.026489258,-0.008224487,-0.011451721,-0.010185242,0.0027770996,-0.028869629,0.03527832,-0.01687622,0.08526611,0.01007843,-0.027374268,-0.0126953125,0.034484863,0.03466797,0.02960205,-0.0066070557,0.010498047,-0.003107071,-0.032470703,0.01928711,0.014831543,0.008430481,0.045043945,-0.06384277,-0.021972656,0.016616821,0.025680542,0.0016002655,-0.0014190674,-0.024047852,0.018157959,0.034698486,-0.0129470825,0.0005660057,-0.03475952,0.016113281,-0.033599854,-0.006511688,-0.007621765,-0.010543823,0.030014038,-0.034301758,0.015975952,0.0132369995,0.00025463104,-0.010299683,0.016036987,0.033233643,-0.0029258728,-0.031555176,0.023956299,0.015838623,0.021530151,0.030029297,0.04345703,0.050354004,0.019012451,0.02456665,0.010299683,-0.0013475418,-0.031463623,0.03338623,-0.024291992,-0.031311035,0.03567505,-0.017974854,0.017196655,-0.013954163,-0.020904541,-0.05618286,0.015296936,-0.0067710876,0.010986328,0.049194336,-0.021911621,-0.035614014,-0.060424805,-0.0039138794,0.02708435,0.08947754,0.012878418,0.02166748,-0.026351929,0.0010786057,0.035247803,0.00040006638,-0.011741638,-0.013473511,0.005493164,-0.018066406,-0.0047798157,-0.006477356,-0.009559631,0.03756714,-0.0029964447,0.0039787292,0.007484436,0.016525269,0.004005432,0.0065727234,-0.00598526,0.03173828,-0.01222229,0.005756378,-0.024978638,0.004562378,0.011566162,-0.019882202,-0.04135132,0.015853882,-0.038269043,0.013259888,-0.022338867,-0.0054626465,-0.028244019,0.045776367,0.019256592,-0.0131073,0.0178833,0.00856781,-0.03201294,-0.11279297,0.05239868,0.010383606,0.010940552,0.010238647,-0.004070282,0.005126953,0.0003285408,-0.012992859,-0.0030021667,-0.003112793,-0.0074768066,-0.027175903,-0.015853882,-0.03152466,-0.0040283203,-0.03842163,0.012268066,-0.009750366,0.017181396,0.03778076,-0.012619019,0.020217896,-0.008422852,-0.027008057,-0.0102005005,0.007762909,0.038513184,0.047576904,-0.0047454834,-0.044677734,0.025177002,0.0007505417,0.018310547,-0.006286621,0.00055360794,0.021621704,0.0064849854,-0.0022068024,-0.009811401,0.001964569,-0.04034424,0.0024986267,-0.03652954,0.014801025,-0.006088257,-0.0039367676,0.01739502,0.023544312,-0.023254395,-0.033050537,0.0071487427,0.025222778,-0.03353882,0.026351929,0.01979065,0.029510498,-0.020309448,-0.022018433,0.006275177,0.025161743,0.024169922,-0.00087070465,-0.0012645721,0.012077332,-0.042510986,0.028045654,-0.0010852814,-0.031021118,0.017669678,0.019165039,0.015449524,0.0077819824,0.0032615662,-0.017349243,-0.01486969,-0.007583618,0.007965088,-0.02659607,0.009391785,0.016479492,0.025787354,-0.009521484,0.015457153,0.030090332,-0.010116577,-0.04055786,-0.0039901733,0.020721436,0.016479492,-0.014427185,0.005012512,-0.0027942657,0.026519775,-0.03564453,0.0084991455,-0.012817383,-0.009933472,-0.0045776367,-0.052703857,-0.018676758,-0.022583008,0.027328491,0.002702713,-0.007156372,0.028717041,-0.008811951,-0.028411865,0.04348755,0.00869751,-0.018661499,-0.012779236,-0.058044434,-0.021514893,0.004924774,0.035308838,-0.006801605,0.01737976,0.0015296936,-0.015220642,0.029281616,-0.010986328,-0.0024356842,-0.009681702,0.0057525635,0.068115234,-0.013832092,0.014602661,-0.018478394,-0.025878906,0.0047798157,0.048431396,0.014312744,-0.03479004,0.021820068,0.0158844,0.004550934,0.0017871857,0.0013151169,-0.006126404,0.051727295,0.0053901672,0.0055732727,-0.018875122,0.020629883,-0.022125244,0.003873825,0.009376526,-0.0038642883,-0.0010204315,-0.04135132,-0.004611969,0.03665161,-0.0124053955,-0.007118225,-0.00030517578,-0.04458618,-0.0021247864,-0.039215088,-0.008087158,0.016540527,0.033966064,-0.015960693,0.00006586313,-0.025238037,0.029708862,0.000834465,0.011955261,-0.02720642,0.033050537,0.008995056,0.029022217,-0.070251465,-0.010185242,-0.014350891,0.030319214,-0.03427124,-0.022659302,-0.023773193,0.018371582,0.006755829,-0.030914307,-0.030715942,-0.017578125,-0.012176514,-0.03543091,-0.010856628,-0.023620605,0.0013256073,0.008270264,-0.0118637085,0.008117676,-0.0069351196,-0.03265381,0.055480957,0.0016002655,0.011001587,-0.03010559,-0.006214142,0.00497818,0.002538681,-0.027282715,-0.015296936,0.00036406517,-0.04119873,-0.034301758,0.009269714,-0.032806396,0.036834717,-0.0440979,0.012329102,-0.05697632,-0.000043570995,-0.034576416,0.00687027,-0.019500732,-0.004447937,0.024368286,0.029678345,0.028289795,-0.015930176,-0.018447876,-0.04547119,0.012565613,0.009742737,-0.018707275,0.01676941,0.032226562,0.012138367,-0.008323669,0.016357422,-0.029754639,0.024856567,-0.01889038,-0.00045275688,-0.04083252,0.02960205,-0.013839722,-0.0127334595,-0.010795593,0.00491333,0.07055664,0.022827148,0.006336212,-0.0066223145,-0.033935547,0.03086853,0.04034424,-0.044158936,-0.0181427,-0.00040531158,-0.0037631989,-0.03250122,0.006515503,-0.010177612,0.004085541,-0.010261536,-0.017837524,-0.016479492,-0.006641388,0.0038013458,-0.018844604,-0.040527344,-0.026428223,-0.005115509,-0.022521973,-0.007457733,0.011222839,0.0016431808,-0.022888184,-0.06500244,-0.018707275,0.04458618,-0.0010490417,-0.0065612793,-0.020080566,0.015808105,0.0009784698,-0.031341553,-0.027786255,0.007801056,-0.014877319,-0.011108398,-0.042175293,0.025634766,-0.030700684,-0.0054244995,-0.0010709763,0.018676758,0.007873535,-0.04925537,-0.034484863,-0.016860962,0.01084137,-0.000060498714,-0.007843018,-0.02104187,-0.016693115,0.02305603,-0.033081055,0.030136108,0.024032593,0.004890442,0.0034313202,0.033081055,0.027526855,-0.04135132,-0.019104004,0.0033817291,0.0003771782,0.0491333,-0.03326416,0.018920898,0.0060424805,0.025604248,0.0010538101,-0.020904541,0.0050582886,-0.04837036,-0.013320923,0.012779236,-0.024658203,0.008232117,-0.012123108,0.0047836304,0.009780884,0.031463623,0.015731812,-0.010688782,-0.015014648,-0.017913818,0.027053833,-0.0017032623,-0.009719849,-0.017974854,0.015510559,0.005344391,0.04309082,0.022903442,-0.014198303,-0.032348633,0.052124023,0.04586792,0.020935059,0.016326904,-0.009231567,-0.0039482117,0.008979797,0.028289795,-0.026550293,-0.019226074,0.0042381287,0.0030536652,0.015220642,0.0129852295,-0.01259613,0.0020866394,0.008003235,0.01713562,-0.035949707,0.015281677,-0.018753052,-0.02104187,-0.008369446,-0.0012569427,0.0077552795,-0.0068130493,-0.02079773,-0.0023937225,-0.009780884,0.031951904,-0.0026073456,-0.028121948,0.016983032,0.02998352,0.021484375,-0.008613586,-0.010116577,-0.010253906,-0.026748657,-0.024337769,-0.030639648,-0.0021438599,0.040496826,-0.035736084,0.0045661926,0.0113220215,0.07598877,-0.0003669262,0.023773193,-0.001789093,0.022827148,-0.02053833,0.031204224,-0.07678223,-0.0055618286,0.0014429092,-0.0051460266,-0.028167725,0.0007314682,-0.009338379,0.046661377,0.018096924,-0.00970459,0.015220642,-0.017120361,0.011924744,-0.01424408,-0.04269409,0.014968872,-0.029586792,-0.039276123,0.0040512085,-0.034576416,0.00028038025,0.033111572,-0.034576416,0.028747559,-0.014099121,-0.0011863708,0.028640747,0.004119873,-0.007129669,-0.019821167,-0.0058403015,-0.015960693,-0.01335144,0.003396988,0.011703491,0.035461426,0.012557983,0.01398468,0.021118164,0.019943237,0.009857178,-0.032318115,-0.041137695,0.010147095,-0.007965088,-0.0020217896,-0.00178051,0.05911255,0.05935669,0.028717041,0.057403564,0.006679535,0.055877686,-0.014831543,0.0072631836,-0.008544922,0.03265381,-0.032684326,0.020584106,-0.037963867,0.040161133,-0.06036377,0.0128479,0.025268555,0.018035889,-0.0015392303,0.04168701,0.039764404,0.030776978,0.001871109,0.01878357,0.0052223206,-0.022354126,-0.012809753,-0.014350891,0.029373169,0.013549805,0.035980225,0.034423828,0.029953003,0.00046658516,0.03878784,-0.02708435,-0.008651733,0.017425537,0.0127334595,-0.017211914,-0.011421204,0.010887146,0.031463623,-0.030715942,-0.03366089,0.022079468,-0.003545761,-0.010002136,-0.007835388,0.010734558,-0.015655518,-0.025024414,0.014450073,0.015686035,-0.010192871,0.05496216,0.012802124,-0.028778076,0.033691406,-0.013122559,0.02027893,-0.013412476,-0.010498047,-0.0042304993,0.008468628,-0.012840271,-0.018585205,0.021057129,0.0007047653,0.018722534,0.03640747,-0.0030155182,-0.017929077,0.02659607,-0.0003578663,-0.011627197,0.05633545,0.032226562,0.015045166,0.03515625,0.009277344,0.025558472,-0.055511475,-0.005596161,-0.00045347214,0.0077285767,-0.0064315796,0.0126953125,0.03567505,-0.014320374,0.026275635,0.004562378,0.0143585205,-0.019622803,0.0074539185,-0.01828003,-0.0023670197,-0.014373779,0.026519775,-0.022125244,0.014663696,-0.0021705627,0.005001068,0.02558899,0.0076293945,0.052856445,-0.026824951,0.009689331,-0.011688232,-0.009674072,0.0069274902,0.01676941,-0.033081055,0.030593872,-0.013160706,-0.019210815,-0.0140686035,0.016860962,0.019577026,-0.026748657,-0.009178162,-0.00409317,-0.0032367706,-0.0015029907,0.041412354,0.01890564,0.017044067,-0.016433716,-0.027023315,0.016326904,0.05432129,-0.030471802,-0.014587402,-0.014968872,-0.00069236755,0.019058228,-0.011222839,0.021942139,-0.0143585205,-0.0057678223,-0.066711426,0.030715942,0.04046631,0.021270752,-0.00013816357,-0.010375977,-0.002122879,-0.014030457,0.03717041,0.0007266998,-0.0065231323,-0.033966064,0.014907837,-0.04473877,0.055358887,0.041107178,-0.012893677,0.027862549,-0.005645752,-0.034851074,-0.047027588,-0.013664246,0.007850647,-0.03918457,-0.02848816,-0.020965576,0.03213501,-0.026779175,-0.021270752,-0.0011577606,-0.007980347,-0.035461426,0.010017395,0.045440674,0.00945282,0.027404785,0.037963867,0.0079422,-0.023834229,0.051818848,-0.013832092,0.03390503,0.0181427,0.011703491,0.061553955,-0.0042762756,0.030441284,-0.0041885376,0.0026855469,-0.019638062,0.024993896,0.033721924,0.020706177,0.013832092,-0.009994507,-0.012290955,0.0055732727,-0.0029125214,0.004550934,-0.013893127,-0.0065307617,0.0069389343,0.0038280487,-0.0034923553,-0.0064048767,-0.021347046,0.0005059242,0.036071777,-0.01977539,-0.018722534,-0.011100769,0.0137786865,0.01146698,-0.006996155,-0.0045814514,-0.021392822,-0.012512207,0.026489258,-0.026473999,-0.011886597,0.0022945404,0.040374756,-0.045654297,-0.006454468,0.035339355,0.025741577,-0.01838684,0.016174316,0.052978516,0.012054443,0.006034851,0.038238525,0.0003092289,0.031921387,-0.009384155,0.018844604,0.02583313,0.031204224,0.016204834,0.031555176,0.014762878,-0.012176514,0.043060303,0.03048706,0.02407837,0.001499176,-0.0037822723,-0.014930725,0.0033302307,0.00080013275,-0.0021324158,0.010108948,-0.03326416,-0.018356323,0.01651001,0.003440857,-0.012649536,0.025543213,0.0036849976,0.00223732,0.040771484,0.018173218,0.03704834,-0.040283203,-0.0012617111,0.007675171,-0.0025291443,-0.026046753,0.009468079,0.012878418,-0.012382507,0.0056762695,0.021636963,0.0051498413,-0.003414154,-0.009086609,-0.034576416,0.021270752,0.0050735474,0.007232666,0.0102005005,0.0357666,0.03086853,-0.007972717,-0.0016479492,0.000916481,-0.014907837,-0.0013713837,0.03704834,-0.02267456,-0.034423828,0.018249512,-0.0038280487,0.013839722,-0.0044174194,0.006088257,0.0047416687,-0.011772156,0.03277588,-0.011543274,0.012214661,-0.005130768,-0.015357971,-0.015731812,0.0074386597,0.052978516,-0.020950317,-0.020645142,0.0076026917,0.028701782,0.0087509155,0.012794495,-0.0061035156,0.024612427,0.015167236,-0.027236938,-0.022613525,-0.0030231476,0.00046014786,-0.018051147,0.01777649,-0.0048561096,-0.0309906,0.009155273,0.012054443,-0.01184845,-0.0146102905,-0.036712646,-0.014122009,-0.030822754,0.012634277,0.013336182,-0.029281616,-0.018615723,-0.022766113,0.0051460266,-0.036010742,-0.0073127747,0.009178162,0.0012483597,-0.010520935,-0.023406982,0.022247314,-0.018096924,0.011184692,-0.0063095093,0.0051841736,-0.012397766,-0.0040626526,-0.0046310425,-0.02166748,-0.00058698654,0.017837524,0.027008057,-0.036468506,0.01927185,-0.0079422,-0.0044288635,-0.00079107285,0.001335144,-0.009880066,0.023803711,-0.0033092499,0.018569946,-0.0013456345,-0.020263672,0.005027771,-0.004398346,-0.018173218,-0.020065308,0.014854431,-0.037719727,0.02609253,0.010444641,0.0013017654,0.018539429,0.027679443,-0.030288696,-0.006385803,0.024780273,0.006290436,-0.005569458,0.045715332,0.002407074,-0.027908325,-0.02142334,-0.015274048,-0.009635925,0.014587402,-0.0024929047,0.033569336,-0.0129852295,0.048858643,0.014587402,0.0007920265,-0.015457153,0.002199173,0.030395508,0.013320923,0.035949707,0.0016746521,0.004245758,-0.010032654,-0.011116028,0.0028095245,0.042663574,-0.0038013458,0.0020980835,-0.019470215,0.01625061,-0.0044937134,0.009727478,0.042785645,0.008087158,-0.033294678,0.000623703,-0.027908325,-0.018753052,-0.0033111572,-0.0062942505,-0.031219482,-0.005180359,0.011756897,-0.023483276,0.0066070557,0.011260986,0.01210022,-0.023468018,0.0053596497,0.008132935,0.0063171387,-0.035888672,0.0054016113,-0.037078857,-0.031921387,-0.004436493,-0.012031555,0.010894775,0.021224976,0.00001835823,0.0012493134,-0.018676758,-0.006378174,0.025848389,0.007904053,0.005844116,0.012031555,0.01902771,0.011558533,-0.03604126,0.011734009,-0.0234375,-0.014625549,0.012290955,0.023391724,0.008651733,-0.01927185,0.044647217,-0.019500732,-0.003616333,-0.0014886856,-0.0028305054,0.018112183,-0.033081055,0.01259613,0.00548172,-0.009559631,0.013320923,-0.002216339,-0.024841309,-0.0071868896,-0.029815674,-0.017059326,0.026901245,-0.0041389465,0.021316528,-0.0107040405,0.004760742,-0.024108887,-0.030700684,0.0030269623,-0.006313324,-0.03375244,0.023620605,0.02709961,-0.005634308,-0.01058197,-0.035217285,0.00050878525,-0.018447876,-0.011444092,-0.006580353,-0.017669678,-0.014587402,0.022872925,0.031021118,0.018844604,-0.0126953125,0.010612488,0.021972656,0.0012836456,0.018218994,0.012573242,0.027404785,0.002439499,-0.016708374,-0.010002136,0.04260254,-0.00091171265,0.0021381378,-0.0075645447,0.026550293,-0.024505615,0.016693115,0.019683838,0.021270752,0.011192322,0.0335083,-0.019622803,0.034851074,-0.030914307,0.0014104843,-0.010063171,0.011955261,0.026367188,-0.014427185,0.0027122498,-0.015945435,0.012634277,0.018722534,0.04269409,-0.023956299,-0.05404663,0.00021493435,0.009513855,0.005962372,-0.018981934,0.015777588,-0.019012451,-0.026351929,-0.021133423,-0.007270813,-0.01727295,-0.004322052,0.024276733,0.0075645447,-0.009864807,-0.007217407,0.038238525,-0.009590149,0.0035152435,0.0038375854,0.011070251,0.022659302,0.032165527,-0.004940033,0.0028705597,0.005996704,-0.03781128,0.0597229,-0.008659363,0.012214661,-0.023605347,-0.0073623657,-0.03186035,-0.019119263,-0.007637024,-0.02897644],"createdAt":"2026-04-18T18:31:40.622Z","updatedAt":"2026-04-24T22:31:48.043Z","lastSeenAt":"2026-04-24T22:31:48.043Z","tsv":"'000':104,105 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':117 '0x9aaa917ebd59400b9160b90dcda33b3138ff3aa2':52 '1':3,19,103,107,123 '300':132 '402 payment required' '6':110 'Base network payment' 'USDC tip link' 'accept':75 'address':16,32,51 'allow':64 'application/json':142 'avail':195 'base':7,23,70,98 'base-network' 'beyond':165 'buy':46 'buy a coffee crypto' 'caller':42 'challeng':120,169 'coffe':48 'communic':171 'concept':61,150 'contain':85 'contract':116 'creat':67,182 'crypto tipping' 'crypto-micropayment' 'decim':111 'demo':151 'deploy':152 'document':156 'endpoint':34,74,139 'exact':95 'exact-payment-scheme' 'get':77 'given':109 'guarante':198 'header':84 'implement':35 'land':173 'let':41 'link':72,184 'long':193 'long-term':192 'maximum':126 'network':99 'offer':177 'openapi':159 'page':164,174 'payment':10,26,38,83,89,92,129,136 'platform':62 'poc':189 'price':163 'proof':59,90,148 'proof-of-concept':58,147 'protocol':11,27,39 'request':78 'requir':100 'respons':143 'return':140 'run':54 'scheme':93 'second':133 'send':1,17,43 'settlement':130 'simpl':179 'site':157 'spec':160 'specifi':14,30 'stabil':190 'success':135 'term':194 'timeout':127 'tip':5,21,45,71,183 'token':115 'ui':180 'unit':106 'upon':134 'usdc':4,20,108,114 'usdc-tipping' 'user':65 'valid':87 'verif':137 'version':121 'via':8,24 'wallet':15,31,50 'x':82 'x-payment':81 'x402':9,25,37,69,88,119,168 'x402 micropayment' 'x402 tip' 'x402-based':68 'x402-payment' 'x402-poc.vercel.app':57,176","prices":[{"id":"d4cd4e1c-0f88-4b7b-8a77-4549bf0ede78","listingId":"eafc6c0d-5b20-4dd0-8b3b-9605fbad09b0","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"1000000","chain":"base","payTo":"0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://x402-poc.vercel.app/api/0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2/coffee","description":"buy 0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2 a coffee. ","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"1000000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:31:40.622Z"}],"sources":[{"listingId":"eafc6c0d-5b20-4dd0-8b3b-9605fbad09b0","source":"x402_bazaar","sourceId":"https://x402-poc.vercel.app/api/0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2/coffee","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:31:40.622Z","lastSeenAt":"2026-04-24T22:31:48.043Z"}],"details":{"listingId":"eafc6c0d-5b20-4dd0-8b3b-9605fbad09b0","quickStartSnippet":"curl -X GET https://x402-poc.vercel.app/api/0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2/coffee \\\n  -H \"X-PAYMENT: <your-x402-payment-proof>\"","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 x402Version 1, exact scheme, Base network, maxAmountRequired 1000000, asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (USDC)","source_url":"https://x402-poc.vercel.app/api/0x9aaa917eBD59400B9160b90dCDa33b3138Ff3aa2/coffee"},{"claim":"The landing page describes the app as 'Create your x402 tip link'","source_url":"https://x402-poc.vercel.app"},{"claim":"No docs, pricing, or README pages exist (all return 404)","source_url":"https://x402-poc.vercel.app/docs"}],"useCases":["Sending a 1 USDC tip to a specific Ethereum address on Base","Demonstrating x402 protocol payment flows in agent or app integrations","Testing x402 payment challenge/response mechanics"],"bestFor":["Developers experimenting with the x402 payment protocol","Agents that need to make small crypto payments programmatically","Tipping or donation use cases on the Base L2 network"],"notFor":["Production-grade payment processing requiring SLAs and support","Variable-amount or subscription-based payments","Non-USDC or non-Base-network transactions"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:05.488Z"},"updatedAt":"2026-04-24T22:31:48.043Z"}}