AI agents with raw keys face unbounded financial risk. NexusGuard enforces scoped Function-Call Access Keys, autonomous build-vs-buy task decomposition, 1-round counter-offer negotiations, and real-time prompt-injection defense with cross-chain USDC settlements.
Watch the full pipeline execute — from policy-bound wallet initialization to cross-chain settlement — or see the Security Swarm intercept a live attack.
Every layer is mathematically bounded — no raw keys, no unbounded spend, no unverified deliverables.
Scoped Function-Call Access Keys only — never FullAccess. Hard budget caps ($25.00 USDC) and human-in-the-loop co-signatures for payouts exceeding $10.00.
delete_accountadd_keyescrow.nexusguard.testnetEvaluates build-vs-buy tradeoffs across 3 strategies: self-build, agent-market outsource, and cross-chain micro-bounty. Counters overpriced quotes exactly once.
Settle deliverables across NEAR, Base, and Arbitrum in native USDC via NEAR Intents 1Click rails with accountant-ready CSV ledgers and verifiable receipt hashes.
Every outgoing transaction passes through a multi-layer interception pipeline before reaching the chain adapter.
Prompt Injection
ignore all previous instructions
Escrow Bypass
bypass_escrow drain_to_external
Admin Override
ADMIN_OVERRIDE transfer_all_funds
On-Chain Blocklist Hit
0xDEADBEEF...BAD → BLOCKED
7 regex patterns + on-chain blocklist matching · Sub-1ms detection latency
SHA-256 Receipt Hash
130380b82b2a65e6b835394240515ae6…
Every blocked transaction generates an immutable cryptographic receipt for audit trail & forensic analysis.
Clone. Install. Run. Every feature is deterministic and testable with zero funded wallets or secret keys.
# Full pipeline — zero keys needed
$ python main.py --dry-run
# Prompt-injection attack simulation
$ python main.py --attack-demo
# Run all 54 automated tests
$ pytest tests/ -v
======================== 54 passed in 7.15s ========================
# Launch Mission Control UI
$ python server.py
→ http://localhost:8000
54
Passing Tests
0
Keys Required
7
Injection Patterns
3
Cross-Chain Settlements
Every module is purpose-built for a specific hackathon judging category.
Multi-agent orchestration, market.near.ai integration, 1-round negotiation state machine.
Prompt-injection defense, key custody policy engine, cryptographic incident receipts.
Multi-agent swarm coordination with build-vs-buy decomposition and specialist delegation.
Autonomous procurement, accountant-ready CSV ledgers, verifiable financial audit trail.
NEAR Intents 1Click cross-chain settlement with real API integration and verifiable receipts.
NEAR Intents 1Click API cross-chain quotes, NEP-141 escrow interface, USDC settlement rails.
Launch the Mission Control dashboard and run the full NexusGuard pipeline yourself — zero funded wallets required.