{"name":"Aigregator x402 API","description":"Hybrid free/paid API for AI agents to query 5,336+ AI tool profiles. Free discovery (search, categories, tags); pay per request with USDC via x402 for full profiles and comparisons.","version":"1.0.0","protocol":"x402 (HTTP 402 Payment Required)","payment":{"currency":"USDC","networks":["Base (eip155:8453)"],"facilitator":"https://facilitator.payai.network"},"endpoints":{"free":{"GET /":"This overview","GET /health":"Health check","GET /stats":"Revenue + usage analytics","GET /llms.txt":"Agent discovery","GET /v1/search":"Search tools by keyword, category, filters — returns {slug, name} only (existence check)","GET /v1/categories":"List all categories","GET /v1/tags":"List all tags","GET /v1/categories/:slug/tools":"List tools in a category — returns {slug, name} only"},"paid":{"GET /v1/tools/:slug":{"price":"$0.001","description":"Full tool profile by slug"},"GET /v1/compare":{"price":"$0.01","description":"Compare 2-5 tools side-by-side"}}},"links":{"website":"https://aigregator.com","documentation":"https://x402.aigregator.com/docs","x402_protocol":"https://www.x402.org"}}