generated: '2026-09-19'
method: probed
source: https://emem.dev/.well-known/agent-card.json
discovery:
  path: /.well-known/agent-card.json
  canonical: true
  host: emem.dev
  note: >-
    Served from the product domain at both the A2A 1.0 canonical path and the legacy
    /.well-known/agent.json (byte-identical bodies). The same card is mirrored on
    vortx-ai-emem.hf.space and referenced from /.well-known/mcp.json (protocol_card),
    /.well-known/emem.json (agent_card_a2a_url) and the /v1/agent_card live descriptor.
    The card is JWS-signed (signatures[] with jku https://emem.dev/.well-known/jwks.json,
    payload canonicalized per RFC 8785) and names the operator's did:web document.
conformance:
  spec: A2A 1.0.0
  grade: conformant
  protocol_version: '1.0'
  preferred_transport: JSONRPC
  hard_checks:
    capabilities_is_object: true
    protocol_version_present: true
    skills_is_array: true
  optional_fields_present:
    preferredTransport: true
    defaultInputModes: true
    defaultOutputModes: true
    supportedInterfaces: true
    provider: true
    documentationUrl: true
    signatures: true
  deviations: []
  notes:
  - Carries both supportedInterfaces (A2A 1.0) and additionalInterfaces (pre-1.0 spelling) so 0.3-era clients still resolve the endpoints; recorded as compatibility, not a deviation.
  - securitySchemes and security are absent by design; the card's emem.authentication block states that every read is open and that writes carry a per-write ed25519 attester signature.
  - capabilities.extensions declares two provider extensions (async tasks at /spec/a2a/async-tasks/v1, signed channel at /spec/a2a/channel/v1); capabilities.streaming is true, pushNotifications and stateTransitionHistory false.
card:
  name: emem
  url: https://emem.dev/a2a/tasks
  version: 2.4.0
  provider_organization: Vortx AI Private Limited
  provider_url: https://vortx.ai
  documentation_url: https://emem.dev/agents.md
  icon_url: https://emem.dev/favicon.svg
  capabilities:
    streaming: true
    pushNotifications: false
    stateTransitionHistory: false
    extendedAgentCard: false
    extensions: 2
  default_input_modes: [text/plain, application/json, image/jpeg, image/png]
  default_output_modes: [application/json, image/jpeg, image/png, video/mp4]
  skills: 113
  skills_note: Every MCP tool is published as an A2A skill (110 tools) plus three composite skills; skill query at https://emem.dev/v1/a2a/skills?q=.
  interfaces:
  - {protocol: a2a-message-send, transport: JSONRPC, url: 'https://emem.dev/a2a/tasks'}
  - {protocol: a2a-async-tasks, transport: HTTP+JSON, url: 'https://emem.dev/v1/a2a/tasks'}
  - {protocol: a2a-skill-query, transport: HTTP+JSON, url: 'https://emem.dev/v1/a2a/skills'}
  - {protocol: openapi-3.1, transport: HTTP+JSON, url: 'https://emem.dev/openapi.json'}
  - {protocol: mcp-streamable-http, transport: JSONRPC, url: 'https://emem.dev/mcp'}
  responder:
    did: did:web:emem.dev
    did_document: https://emem.dev/.well-known/did.json
    signature_alg: ed25519
    hash_alg: blake3
  file: emem-dev-agent-card.json
additional_cards:
- host: vortx.ai
  source: https://vortx.ai/.well-known/agent-card.json
  file: emem-dev-vortx-ai-agent-card.json
  grade: near-conformant
  protocol_version: 0.3.0
  hard_checks: {capabilities_is_object: true, protocol_version_present: true, skills_is_array: true}
  deviations:
  - protocolVersion-0.3-predates-a2a-1.0.0
  - additionalInterfaces-carry-transport-values-HTTP-and-MCP-rather-than-A2A-bindings
  card: {name: Vortx AI, url: 'https://vortx.ai/', version: 2.0.0, skills: 1, provider_organization: Vortx AI Private Limited}
  note: >-
    The company domain publishes its own card describing Vortx AI as the maker of emem, with a
    single skill (read_earth_memory) whose interfaces point back at https://emem.dev/v1/ and
    https://emem.dev/mcp. Recorded as a second published card, not as the primary surface.
- host: vortx-ai-emem.hf.space
  source: https://vortx-ai-emem.hf.space/.well-known/agent-card.json
  http_status: 200
  note: Mirror of the canonical responder named in https://emem.dev/terms; card served (88 KB) but not saved separately.
x-evidence:
  fetched: '2026-09-19'
  url: https://emem.dev/.well-known/agent-card.json
  http_status: 200
  content_type: application/json
  also_probed:
  - {url: 'https://emem.dev/.well-known/agent.json', http_status: 200, note: identical body}
  - {url: 'https://www.emem.dev/.well-known/agent-card.json', http_status: 200}
  - {url: 'https://vortx.ai/.well-known/agent-card.json', http_status: 200}
  - {url: 'https://vortx.ai/.well-known/agent.json', http_status: 404}
  - {url: 'https://vortx-ai-emem.hf.space/.well-known/agent-card.json', http_status: 200}
  - {url: 'https://api.emem.dev/.well-known/agent-card.json', http_status: 0, note: host does not resolve}
  - {url: 'https://mcp.emem.dev/.well-known/agent-card.json', http_status: 0, note: host does not resolve}