{"$schema":"https://a2aprotocol.ai/schema/agent-card.json","name":"x402 SEARCH","version":"10.0.0","description":"Search engine for agents. 100K+ x402, MCP, and MPP services indexed with real on-chain revenue data. Search, discover, and interact with any service. Pay via x402 or MPP/Tempo. The discovery and interaction layer for the agentic web.","url":"https://x402search.net","provider":{"name":"Valoria","url":"https://valoria.net","contact":"https://valoria.net"},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["application/json","text/plain"],"capabilities":{"mcp":{"endpoint":"https://x402search.net/mcp","transport":"streamable-http","tools":["search","feeds","stats","domain-detail","try-x402","try-mpp"]},"openapi":"https://x402search.net/openapi.json","llmsTxt":"https://x402search.net/llms.txt","protocols":"https://x402search.net/api/protocols","streaming":false,"pushNotifications":false,"agentInteraction":true,"paymentProxy":true},"authentication":{"schemes":["none","x402","mpp"],"description":"Discovery endpoints are free and open. Paid intelligence endpoints accept x402 (USDC on Base) or MPP/Tempo payments. 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Returns 402 challenge or service response.","inputModes":["application/json"],"outputModes":["application/json"],"endpoints":[{"method":"POST","uri":"https://x402search.net/mcp","description":"MCP tool: try-x402"}],"free":true},{"id":"try-mpp","name":"Try MPP Service","description":"Probe or auto-pay any indexed MPP/Tempo endpoint via MCP. Server wallet can pay on agent's behalf.","inputModes":["application/json"],"outputModes":["application/json"],"endpoints":[{"method":"POST","uri":"https://x402search.net/mcp","description":"MCP tool: try-mpp"}],"free":true},{"id":"categories","name":"Browse Categories","description":"List all categories in the agent economy for structured browsing.","inputModes":[],"outputModes":["application/json"],"endpoints":[{"method":"GET","uri":"https://x402search.net/api/categories"}],"free":true},{"id":"protocols","name":"Supported Protocols","description":"All payment and discovery protocols supported by Valoria — x402, MPP, MCP, A2A, OpenAPI.","inputModes":[],"outputModes":["application/json"],"endpoints":[{"method":"GET","uri":"https://x402search.net/api/protocols"}],"free":true}],"payment":{"protocols":["x402","mpp"],"network":"eip155:8453","asset":"USDC","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0xd84B351dE5e4a08111ae9c3fE3eeBD7208Ce03AA","description":"Paid endpoints accept HTTP 402 x402 payments (USDC on Base) AND MPP/Tempo payments. Make the request first to receive both payment challenges, then retry with your preferred payment."},"domains":["valoria.net","find-agents.com","search.valoria.net","x402search.net","crypto-search.net"]}