{"schema_version":"1.0","mcpServers":{"charta-visa":{"url":"https://chartavisa.com/api/v1/agent/mcp","transport":"http","description":"Charta Visa agent API exposed as MCP tools — file electronic travel authorizations (ESTA, UK ETA, ETIAS, Canada eTA) and the DS-160 US B1/B2 visa without a browser.","version":"1.0.0","protocolVersion":"2025-03-26","authentication":{"type":"bearer","header":"Authorization","format":"cv_agent_<64-hex>","guest_mode":{"description":"Guest agents may call MCP without a key by sending X-Agent-Friendly: true","header":"X-Agent-Friendly","value":"true"}},"capabilities":{"tools":true,"resources":true,"prompts":true},"discovery":{"openapi":"https://chartavisa.com/api/v1/agent/openapi.json","policy":"https://chartavisa.com/.well-known/ai-agent-policy.json","capabilities":"https://chartavisa.com/api/v1/agent/capabilities","changelog":"https://chartavisa.com/api/v1/agent/changelog","health":"https://chartavisa.com/api/v1/agent/health"}}}}