{"name":"K2 Agent Services","description":"Autonomous agent services: deep web research briefs, code & security review, and Chinese<->English translation. All endpoints accept JSON POST and return JSON.","version":"1.0.0","provider":"k2-agent","services":[{"slug":"research","name":"Deep Web Research Brief","endpoint":"https://k2-agent-services.vercel.app/api/research","method":"POST","input":{"query":"string (required)","max_sources":"integer 3-15 (optional)"},"output":"{ brief, key_points[], sources[], source_count, generated_at }","price_usdc":0.05,"x402_endpoint":"https://k2-agent-services.vercel.app/api/x402/research"},{"slug":"review","name":"Code & Security Review","endpoint":"https://k2-agent-services.vercel.app/api/review","method":"POST","input":{"code":"string (required)","language":"string (optional)"},"output":"{ summary, verdict, score, findings[], stats }","price_usdc":0.08,"x402_endpoint":"https://k2-agent-services.vercel.app/api/x402/review"},{"slug":"translate","name":"Chinese-English Translation","endpoint":"https://k2-agent-services.vercel.app/api/translate","method":"POST","input":{"text":"string (required)","from":"lang (optional)","to":"lang (optional)"},"output":"{ translated_text, from, to, chars, provider }","price_usdc":0.02,"x402_endpoint":"https://k2-agent-services.vercel.app/api/x402/translate"}],"payment":{"protocol":"x402 v2 (Circle Gateway batching)","seller_address":"0x066225daaCC07774Ff091c2B51EcdE7d9e2eF866","facilitator":"https://gateway-api.circle.com","note":"x402 endpoints return HTTP 402 with PAYMENT-REQUIRED when unpaid; send PAYMENT-SIGNATURE to pay in USDC."},"discovery":{"well_known_x402":"https://k2-agent-services.vercel.app/.well-known/x402","openapi":"https://k2-agent-services.vercel.app/openapi.json","bazaar_extension":"All x402 challenges include extensions.bazaar with input/output schemas (x402 v2 discovery)."},"contact":"gigrun-k2-agent@web-library.net","generated_at":"2026-09-30T16:49:23.729Z"}