generated: '2026-08-13' method: probed source: https://api.smartlead.ai/.well-known/agent-card.json discovery: path: /.well-known/agent-card.json canonical: true host: api.smartlead.ai note: >- Served from the SmartLead documentation/API host (api.smartlead.ai). The same path returns 404 on www.smartlead.ai and 401 on server.smartlead.ai; app.smartlead.ai answers 200 with the application's HTML shell for every /.well-known/* path and was rejected as an SPA catch-all. conformance: spec: A2A 1.0.0 grade: flavored protocol_version: '0.3' preferred_transport: HTTP+JSON hard_checks: capabilities_is_object: true protocol_version_present: true skills_is_array: true deviations: - supportedInterfaces-not-additionalInterfaces - protocolVersion-not-semver note: >- All three hard checks pass, but the card declares its transports under `supportedInterfaces` rather than the A2A 1.0.0 `additionalInterfaces` key, and `protocolVersion` is "0.3" rather than a full semantic version. Graded flavored on the interface-key deviation. card: name: SmartLead API url: https://api.smartlead.ai/ version: 1.0.0 provider: SmartLead API documentation_url: https://api.smartlead.ai/ capabilities: streaming: false push_notifications: false default_input_modes: - text/plain default_output_modes: - text/plain skills: 1 skill_urls: - https://api.smartlead.ai/.well-known/agent-skills/smartlead/skill.md file: smartlead-ai-agent-card.json related: agent_skill: skills/smartlead-ai-smartlead.md mcp_server: mcp/smartlead-ai-mcp.yml x-evidence: fetched: '2026-08-13' url: https://api.smartlead.ai/.well-known/agent-card.json http_status: 200 content_type: application/json bytes: 875 rejected: - url: https://app.smartlead.ai/.well-known/agent-card.json http_status: 200 content_type: text/html reason: SPA catch-all returned the application shell, not an AgentCard - url: https://www.smartlead.ai/.well-known/agent-card.json http_status: 404 - url: https://www.smartlead.ai/.well-known/agent.json http_status: 404 - url: https://api.smartlead.ai/.well-known/agent.json http_status: 404