The real catalog of tools for AI agents

Deterministic runtime enforcement of step order for AI agents: ALLOW/DENY before a step runs.

Receipts-verified reviews of x402 services and paid APIs, before you spend.

PaymentOracle — ES256K-signed receipts for x402 payments on USDC+EURC (Base) and XRP+RLUSD (XRPL).

Issue & verify signed (ed25519), hash-chained, timestamped provenance receipts for agent actions.

Verify a SCITT receipt under a trust root you hold — offline, no backend, no key, no network

Post-quantum, tamper-evident receipts for agent actions. Ed25519 + ML-DSA-65, offline verify.

Cryptographically anchored evidence for agents: verified run receipts, proof-gated settlement.

MCP enforcement layer that intercepts AI agent actions and blocks rule violations before execution.

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

Record x402 agent purchases as reconciled, auditable receipts; verify any receipt on the ledger.

Create a delivery acknowledgement

MCP auth gateway: verify agent identity, enforce per-tool permissions, block replays, emit receipts.

Register an event callback address

Verifier-grounded AI promotion gates, disposable report cards, and signed PASS/HOLD/BLOCK receipts.

Read-only Remote MCP for externally grounded AI agent trust receipts.

AU GST/ABN receipt extraction — assigns entertainment/ITC tax codes per line, not just OCR.

Paid remote MCP for spec driven development acceptance gate MCP, structured receipts, audit logs, an

Safe scheduled AI agents with governance gates. Verified, receipted, fail-closed.

Generate professional receipt PDFs and structured receipt data with AI-ready MCP tools.

Paid remote MCP for Claude Code skill update gate MCP, structured receipts, audit logs, and reviewer