generated: '2026-09-19'
method: probed
status: published
source: >-
  Live JSON-RPC probes on 2026-09-19 — initialize + tools/list on https://mcp.atomadic.tech (200, 68
  tools), tools/list on https://atomadic.tech/mcp (200, 44 tools), https://nexus.atomadic.tech/mcp
  (200, 25 tools) and https://fuse.atomadic.tech/mcp (401) — plus the provider's /.well-known/mcp.json
  on the apex and on www, the mcp.atomadic.tech landing page, the PyPI metadata for aaaa-nexus-mcp and
  atomadic, and the GitHub repo atomadictech/atomadic-sdk. Raw responses saved alongside this file.
summary: >-
  Atomadic ships FOUR hosted MCP surfaces and one stdio package, all under its own domain. The
  primary is mcp.atomadic.tech ("atomadic-mcp" 0.6.9, entitlement-gated by a Bearer ato_ key,
  tools/list open without a key); the REST product's own server sits at atomadic.tech/mcp
  ("aaaa-nexus", API-key or x402 per tool, free tools open); two product hosts (nexus., fuse.) run
  their own servers. tools/list is anonymous on three of the four, so the full inputSchema of 137
  tools was captured — no fallback to llms.txt was needed.
deployment:
  mode: both
  endpoint: https://mcp.atomadic.tech
  additional_endpoints:
  - url: https://atomadic.tech/mcp
    server: aaaa-nexus
    tools: 44
    auth: api-key (X-API-Key) or x402 per tool; free tools need nothing
    declared_in: https://atomadic.tech/.well-known/mcp.json (serverUrl)
  - url: https://nexus.atomadic.tech/mcp
    server: atomadic-nexus 0.1.0
    tools: 25
    auth: unknown (tools/list anonymous; tools/call not exercised)
  - url: https://fuse.atomadic.tech/mcp
    server: atomadic-fuse 1.2.0
    tools: null
    auth: api-key (Fuse Pro entitlement) — tools/list itself answers 401 -32001
  install: python -m aaaa_nexus_mcp
  package: https://pypi.org/project/aaaa-nexus-mcp/
  package_note: >-
    Declared verbatim in the apex /.well-known/mcp.json packages[] (registryType pypi, identifier
    aaaa-nexus-mcp, command python, args [-m, aaaa_nexus_mcp], transport stdio). PyPI: 0.1.1
    published 2026-05-02; its Repository URL https://github.com/AAAA-Nexus/aaaa-nexus-mcp is a 404
    (the AAAA-Nexus GitHub org exists with 0 public repos). llms.txt calls it "113 tools, pip install
    aaaa-nexus-mcp". A second stdio route exists in the superseded fuse-sdk (`fuse-mcp` console
    script, PyPI atomadic-fuse-sdk lineage) — see cli/.
  auth: api-key
  auth_detail: >-
    mcp.atomadic.tech: Authorization: Bearer ato_<key> (Ed25519-signed entitlement token; issuer key
    published at /.well-known/atomadic-issuer-pubkey.json). tools/list is open; without a key it
    returns the public catalog and with a key it filters to the plan. tools/call is gated except
    `murmuration` and the two render_polyglot_* demo atoms. Keys are sold per suite at
    https://atomadic.tech/pricing ($29–$99/mo) or as a $99 lifetime Founding Key. atomadic.tech/mcp:
    X-API-Key (an_ prefix per quickstart) or x402 USDC proof, per tool.
  verified: probed
  transport: streamable-http (JSON-RPC over POST; no SSE URL advertised)
  protocol_version_negotiated: '2024-11-05'
  server_info: {name: atomadic-mcp, version: 0.6.9}
  built: '2026-08-02T15:13:10Z'
servers:
- name: atomadic-mcp
  url: https://mcp.atomadic.tech
  landing: https://mcp.atomadic.tech (HTML page with curl probes for initialize / tools/list / tools/call)
  discovery: https://www.atomadic.tech/.well-known/mcp.json (well-known/atomadic-tech-www-mcp.json)
  evidence:
  - mcp/atomadic-tech-mcp-initialize.json
  - mcp/atomadic-tech-mcp-tools-list.json
  tool_count: 68
  tool_count_note: >-
    /api-status says 129 tools in catalog, 120 proxy tools, 8 bundled executable, 84 "withheld
    non-executable"; the pricing page says "anything whose backend isn't deployed is withheld rather
    than sold". tools/list served 68 on 2026-09-19.
  instructions: >-
    Call tools/call {name: murmuration} first (free, no key) — it returns the control-surface setup.
    Then set Authorization: Bearer ato_<key>; tools/list returns only the tools the plan unlocks.
  tool_families: [agents, compliance, defi, drift, escrow, forge, identity, inference, oracle, rag, ratchet, reputation, rng, security, sla, swarm, text, threat, trust, audit, polyglot]
- name: aaaa-nexus
  url: https://atomadic.tech/mcp
  discovery: https://atomadic.tech/.well-known/mcp.json (well-known/atomadic-tech-mcp.json)
  evidence: [mcp/atomadic-tech-nexus-mcp-tools-list.json]
  tool_count: 44
  input_schema_note: >-
    Every POST tool declares a single `body` object "per the matching path in /openapi.json" — the
    real parameter schema is the OpenAPI requestBody, which is why mcp/atomadic-tech-tool-crosswalk.yml
    binds each tool to its operationId.
  security_claim: {cve_2025_6514: mitigated, mitigation: RatchetGate 47-epoch session ratchet, ratchet_endpoint: /v1/ratchet/register}
- name: atomadic-nexus
  url: https://nexus.atomadic.tech/mcp
  evidence: [mcp/atomadic-tech-nexus-host-mcp-tools-list.json]
  tool_count: 25
  note: The 25 tools mirror the 25 skills in the host's legacy agent.json.
- name: atomadic-fuse
  url: https://fuse.atomadic.tech/mcp
  tool_count: null
  gated: true
  evidence_inline: 'HTTP 401 {"jsonrpc":"2.0","id":2,"error":{"code":-32001,"message":"Unauthorized: API key required. Get yours at https://atomadic.tech/pay?sku=fuse-pro"}}'
tools_sample:
- {name: murmuration, server: atomadic-mcp, free: true, description: START HERE — initialise the control surface; returns SDK install, unlocked tools, runnable demo.}
- {name: compliance_eu_ai_act, server: atomadic-mcp, description: EU AI Act certificate; REST twin euAiActCertificate.}
- {name: escrow_create, server: atomadic-mcp, description: Create agent-to-agent escrow; REST twin createEscrow.}
- {name: ratchet_register, server: atomadic-mcp, description: Register a 47-epoch RatchetGate session; REST twin ratchetRegisterSession.}
- {name: rng_quantum, server: aaaa-nexus, free: true, description: Quantum-seeded random bytes with HMAC-SHA256 entropy proof; REST twin getQuantumRng.}
- {name: threat_score, server: aaaa-nexus, price_micro_usdc: 60000, description: Score a JSON payload for security threats; REST twin scoreThreat.}
- {name: aegis_mcp_proxy_execute, server: aaaa-nexus, price_micro_usdc: 8000, description: NEXUS AEGIS MCP-Sentinel gateway; declared endpoint /v1/aegis/mcp-proxy/execute is NOT in the OpenAPI.}
crosswalk: mcp/atomadic-tech-tool-crosswalk.yml
listings:
  searched: [Claude connector directory, ChatGPT apps, mcp.so, Smithery, PulseMCP, glama]
  found: []
  note: Not searched exhaustively; llms.txt and the docs advertise install into Claude Code / VS Code / Cursor via the PyPI package rather than a directory listing.