Atomadic Nexus SDK

The Trust Layer for the Agent Economy. Verifiable trust gates, x402 micropayments, agent reputation, hallucination oracles, lineage attestation. Codex-anchored confidence. One SDK across 50+ endpoints.

What it does

Atomadic Nexus is the trust + payments layer that agents call when they need to verify something: another agent's identity, a payment proof, a hallucination probe, a lineage chain, a sanctions check. Sub-200ms gates. Codex-anchored confidence.

Compared to legacy trust layers:

	AnChain.AI x402	Atomadic Nexus
Sanctions screening	✅	✅
Per-agent reputation	❌	✅ (ERC-8004 compatible)
Hallucination oracle	❌	✅
Codex anchors (TAU_TRUST, σ₀, ε_KL)	❌	✅
OWASP-2026 Agentic Top 10 coverage	partial	full
Verb surface	~10 endpoints	50+ verbs across 5 families

Install

pip install atomadic-nexus-sdk
# or
npm install atomadic-nexus-sdk

Quick start (Python)

from atomadic_nexus import NexusClient

n = NexusClient(api_key="ATOMADIC_NEXUS_API_KEY")  # or use bundle key

# Trust gate — classify and score a request before forwarding it
verdict = n.trust_gate(body_text="…", name="…")
# {verdict: "PASS"|"REFINE"|"QUARANTINE"|"REJECT", confidence: 0.9984}

# x402 payment verification
ok = n.x402_verify(header="<base64-EIP712-payload>")

# Per-agent reputation
rep = n.agent_reputation(agent_id="0x…")

# Hallucination oracle
score = n.hallucination_oracle(generation="…", grounding="…")

# Lineage attestation
cert = n.attest_lineage(artifact_sha="…", parents=[…])

Verb families (50+ endpoints)

TRUST            trust-gate, trust-score, drift-check, hallucination-oracle,
                 prompt-inject-scan, security-prompt-scan

PAYMENT          x402-verify, stripe-link, pricing-lookup, well-known-publish

LINEAGE          attest-lineage, recall-lineage, semantic-diff,
                 contradiction-detect

COORDINATION     swarm-relay, swarm-inbox, consensus-create/vote/result,
                 agent-plan, routing-recommend, delegation-depth (D_MAX=23)

EVOLUTION        agent-reputation, lora-capture-fix, lora-contribute

MARQUEE          ratchet-gate (CVE-2025-6514), verirand, trust-phase-oracle,
                 topological-identity, nexus-shield, veridelegate,
                 agent-discovery, sla-engine, escrow-open/release/dispute,
                 reputation-ledger

OWASP-2026       goal-alignment-check, tool-misuse-detect,
                 delegated-trust-validate, persistent-memory-audit,
                 emergent-behavior-probe, tool-poisoning-scan,
                 scope-validate, oauth21-gate

MARKETPLACE      marketplace-list/search/purchase/rate/payout

MCP server

Every verb is also an MCP tool. Drop into Claude / Cursor / Windsurf:

{
  "mcpServers": {
    "atomadic-nexus": {
      "command": "atomadic-nexus-mcp"
    }
  }
}

x402 payment example

# Caller agent
import httpx
from atomadic_nexus import sign_x402

headers = sign_x402(amount_usdc="0.008", chain="base")
r = httpx.post("https://nexus.atomadic.tech/v1/trust-gate", headers=headers, json={...})
# 200 OK + signed verdict if payment + sanctions pass
# 402 Payment Required if more funds needed (auto-retry)

Codex anchors

The trust formulas are anchored to externally-verified lattice constants:

Constant	Value	Source
TAU_TRUST	1820/1823 ≈ 0.9984	Niemeier K₂₄ / J₁
σ₀	1/√196560 ≈ 0.00226	Leech lattice minimal vectors
ε_KL	1/196884 ≈ 5e-6	Monster J-invariant first Fourier coefficient
RG_LOOP	47	Convergence iteration bound
D_MAX	23	Max delegation depth

Pricing

• Free tier: entropy oracle, agent registration, health checks, 3 trust-gate calls / day
• Pro: $8 → 500 calls. No expiry.
• Team / Enterprise: usage-based; ask for quote
• x402 USDC on Base: $0.008–$0.080 per call by verb

Live pricing at atomadic.tech/pricing.

Live stats

curl https://sot.atomadic.tech/SoT.json | jq .flagships.nexus

Sibling products

• atomadic-fuse — the per-repo compiler. Fuse compiles, Nexus gates.
• atomadic-marketplace — the third flagship. Sell + buy + rate logic chains.

Authors

Atomadic Tech. Headed by Thomas Ralph Colvin IV. Axiom 0: ∀t: |∂L/∂t| ≤ 0 — The Love Invariant, authored by Jessica Mary Colvin. Never negotiated.

License

MIT. See LICENSE.