generated: '2026-09-19' method: probed source: https://atomadic.tech/.well-known/agent-card.json card: file: a2a/atomadic-tech-agent-card.json discovery: path: /.well-known/agent-card.json canonical: true host: atomadic.tech also_served_at: /.well-known/agent.json (legacy path, byte-identical body) note: >- Served from the apex, the same host as the OpenAPI servers[] entry. provider.organization is "Atomadic Tech" and provider.url is https://atomadic.tech, the card's url is https://atomadic.tech/a2a and its documentationUrl is the provider's quickstart — ownership is not in question. OWNERSHIP CAVEAT RECORDED: the first request of this session returned a DIFFERENT company's card from this exact URL ("Claix", url https://www.claix.dev/a2a, 20 skills); ten re-fetches over the following twenty minutes all returned the AAAA-Nexus card saved here. The saved body was checked for self-identification before saving. Two sibling hosts serve their own legacy-path cards (fuse.atomadic.tech and nexus.atomadic.tech, provider Atomadic Tech); they are saved alongside and graded below but the apex card is the one this pointer asserts. x-evidence: fetched: '2026-09-19' url: https://atomadic.tech/.well-known/agent-card.json http_status: 200 content_type: application/json content_length: 13230 body_parses_as: JSON object with AgentCard shape (name, url, version, protocolVersion, capabilities, skills, provider, preferredTransport, defaultInputModes, defaultOutputModes) response_headers_of_note: x-price-micro-usdc: '20000' x-request-id: req_dea2d95ab458f66bc503f9252d23a968 access-control-expose-headers: X-Atomadic-Tier, X-Atomadic-Model, X-Request-Id, X-Price-Micro-USDC endpoint_probe: url: https://atomadic.tech/a2a method: GET http_status: 402 note: The A2A endpoint the card names is itself x402-metered (8000 micro-USDC per the 402 body and pricing.json "/a2a"). Reachable, but paid. agent_card: name: AAAA-Nexus url: https://atomadic.tech/a2a version: 0.5.1 protocol_version: 1.0.0 preferred_transport: JSONRPC provider: organization: Atomadic Tech url: https://atomadic.tech documentation_url: https://atomadic.tech/quickstart capabilities: streaming: false push_notifications: false state_transition_history: false x402Payment: true freeTrial: true freeTrialCallsPerEndpointPerDay: 3 default_input_modes: [application/json] default_output_modes: [application/json] skill_count: 26 skills: - {id: quantum-rng, name: Quantum RNG} - {id: threat-score, name: Threat Scoring} - {id: ratchetgate, name: RatchetGate Session Security} - {id: ai-inference, name: AI Inference} - {id: escrow, name: Agent Escrow} - {id: reputation, name: Agent Reputation Oracle} - {id: sla-enforcement, name: SLA Enforcement} - {id: discovery, name: Agent Discovery & Matchmaking} - {id: compliance, name: Compliance & Ethics} - {id: identity, name: Identity & Delegation} - {id: audit, name: Decision Audit Vault} - {id: hallucination-oracle, name: Hallucination Oracle} - {id: compression, name: HELIX Compression} - {id: agent-reasoning, name: Agent Reasoning Tools} - {id: swarm-relay, name: Swarm Relay} - {id: zero-day-scanner, name: Zero-Day Scanner} - {id: pre-action-auth, name: Pre-Action Authorization Gateway} - {id: spending-governance, name: Spending Governance Oracle} - {id: decision-lineage, name: Decision Lineage Vault} - {id: behavioral-contract, name: Behavioral Contract Verifier} - {id: identity-federation, name: Agent Identity Federation} - {id: consensus-broker, name: Multi-Agent Consensus Broker} - {id: quota-ledger, name: Hierarchical Quota Ledger} - {id: output-certifier, name: Output Certification Notary} - {id: rollback-coordinator, name: Agent Rollback Coordinator} - {id: memory-fence, name: Cross-Tenant Memory Fence} grade_basis: >- Graded against A2A 1.0.0 hard checks: capabilities is an OBJECT (pass), protocolVersion is present and reads "1.0.0" (pass), skills is an ARRAY of 26 entries each with id/name/description/tags (pass). The optional fields are all present too — preferredTransport JSONRPC, defaultInputModes and defaultOutputModes each declared. deviations: - field: authentication / trialPolicy observed: top-level non-spec members (authentication.schemes [Bearer, APIKey, x402], trialPolicy) note: A2A 1.0.0 carries auth in securitySchemes/security; the card puts it in a custom `authentication` object and adds a `trialPolicy` object. Extra members are not a hard failure but a standard client will not read them. - field: capabilities observed: x402Payment, freeTrial, freeTrialCallsPerEndpointPerDay alongside the spec members note: Vendor extensions inside capabilities without an `extensions[]` declaration. - field: securitySchemes observed: absent note: No securitySchemes/security block despite the API requiring X-API-Key or an x402 proof on the endpoint the card names (GET /a2a answers 402). - field: url observed: https://atomadic.tech/a2a answers 402 to an unpaid request note: Reachable and correctly advertised, but every A2A message costs 8000 micro-USDC (~$0.008); the card does not say so and an A2A client with no wallet cannot complete a handshake. - field: description observed: '"146+ endpoints"' note: The published OpenAPI declares 149 operations, the live /v1/metrics says 119 endpoints, and the pricing manifest prices 89 paths of which 60 are absent from the contract. The number is marketing; the contract is the count. sibling_cards: - host: nexus.atomadic.tech path: /.well-known/agent.json file: a2a/atomadic-tech-nexus-agent-card.json name: atomadic-nexus version: 0.1.0 skills: 25 grade: flavored why: capabilities uses snake_case members (push_notifications, state_transition_history) and there is NO protocolVersion — fails a hard check. Its 25 skills match the 25 tools served by tools/list on https://nexus.atomadic.tech/mcp. - host: fuse.atomadic.tech path: /.well-known/agent.json file: a2a/atomadic-tech-fuse-agent-card.json name: atomadic-fuse version: 1.2.0 skills: 14 grade: flavored why: Same shape defects as the nexus card (snake_case capabilities, no protocolVersion); the host's /mcp answers 401 without a Fuse Pro key. conformance: grade: conformant spec: A2A 1.0.0 hard_checks: {capabilities_is_object: true, protocol_version_present: true, skills_is_array: true} optional_checks: {preferred_transport: true, default_input_modes: true, default_output_modes: true}