Preflight, approve, and prove consequential agent actions with signed evidence and x402 tools.
Listed on
- Official MCP Registry
- Smithery
- Glamavia MCP Toplist
- mcp.sovia MCP Toplist
First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
4
Directories
2 via MCP Toplist
25
Tools
From an anonymous probe
D
ToolBench grade
Arcade’s grade, not ours
2
GitHub stars
From MCP Toplist
Tools
| Tool | Description | Behaviour |
|---|---|---|
| action_safety_quick_gate | AI agent action safety quick gate ($0.01 over x402 or free-tier quota). Deterministically scores a consequential action and returns the exact next call: proceed, request full DestructGuard evidence, or run the complete Action Safety workflow. | Changes data |
| action_safety_run | Complete AI agent action safety workflow ($0.25 over x402 or free-tier quota): DestructGuard evidence, conditional ReviewQueue triage for high or critical risk, an honest decision, signed receipt, and 30-day status record. Triage does not imply human approval. | Changes data |
| assurance_attest | Assurance Attest (x402-paid, $0.05): bind one x402 payment intent or MCP tool call to a canonical HMAC-signed record (binding hash, policy verdict, findings, optional settlement outcome). Loop it after every payment or tool call to build a tamper-evident audit trail a third party can check at the free verify endpoint. | Changes data |
| assurance_verify | Verify a Hermes-signed assurance record for free: recomputes the canonical hash (hermes-stable-json-v1 + SHA-256) and HMAC signature server-side and reports recordHashValid / signatureValid. Use it to audit attestations produced by assurance_attest without trusting the agent that produced them. | Read-only |
| bond_analyze | BondLens (x402-paid, $0.25): deterministic fixed-income and loan analytics. Bond mode solves price<->yield-to-maturity, duration, and convexity; loan mode (send principal+annualRate+termMonths) returns an amortization schedule. | Changes data |
| cashflowlens_analyze | CashflowLens (x402-paid, $0.20): deterministic NPV, IRR, XIRR, DCF valuation, MOIC/DPI/TVPI, and payback period from a cashflow series. Use for valuation and return analysis instead of letting the model estimate. | Changes data |
| dealanalyzer_analyze | DealAnalyzer (x402-paid, $2.00): the flagship. Deterministic full deal underwrite in a single call — DCF valuation (EV, equity value, implied share price), fund returns (IRR/MOIC), and the LP/GP distribution waterfall, plus sensitivity. Combines what CashflowLens + WaterfallLens do, cross-checked. | Changes data |
| emailguard_validate | EmailGuard (x402-paid, $0.02): deterministic email/contact quality scorer — validity, deliverability score, disposable/role/free classification, typo suggestion. Pure function, no DNS. | Changes data |
| emailguard_validate_batch | Validate up to 20 emails in one tool call — one deterministic verdict per record (validity, deliverability score, disposable/role/free classification, typo suggestion, canonical normalization). Pass your free apiKey (250 records/mo, no wallet — https://hermesplant.com/pricing) and each record serves from quota. Results preserve input order; the batch stops at the first 402 (quota exhausted) and marks the rest skipped so you can upgrade and resume. | Changes data |
| evidence_verify | Evidence Verification (x402-paid, $0.05): verify an agent-commerce evidence bundle before trusting a paid result — x402 challenge/receipt/policy-decision/service-response artifacts, endpoint and price binding, freshness, hashes, synthetic-proof leakage. Returns verified / needs_review / rejected / insufficient_evidence with per-rule evidence. | Changes data |
| freetier_status | Check a free API key's remaining monthly quota, reset date, and upgrade path. Pass your hp_free_ key as apiKey. No key yet? POST an email to https://hermesplant.com/api/keys/free (250 calls/mo, no wallet). | Read-only |
| get_checkout_policies | Return legal policy URLs required before checkout | Read-only |
| get_product | Get a single product by slug | Read-only |
| get_x402_manifest | Return the live x402 manifest with paid endpoint prices, Bazaar metadata, and buyer policy checks | Read-only |
| list_products | List active products from the Hermes Plant catalog | Read-only |
| mcp_risk_score | MCP Server Risk Analyzer (x402-paid, $0.05): score an MCP server manifest for security risk before install — destructive tools, over-broad scopes, weak auth, egress — with per-tool findings and fixes. | Changes data |
| options_price | OptionLens (x402-paid, $0.30): deterministic Black-Scholes price and full Greeks (delta, gamma, vega, theta, rho) for European calls/puts, with dividend yield, intrinsic/time value, and moneyness. | Changes data |
| payment_policy_decide | Payment Policy Decision (x402-paid, $0.05): deterministic allow / deny / needs_review before your agent signs an x402 payment — checks resource binding, amount vs expected price, network, payTo, facilitator, replay readiness, PII leakage, and buyer spend limits, with evidence-backed findings. Loop it over every payment; pair with assurance_attest for a signed record. | Changes data |
| portfolioguard_score | PortfolioGuard (x402-paid, $0.15): deterministic portfolio risk scoring from holdings — volatility, Sharpe, max drawdown, concentration (HHI), diversification, plus per-rule findings. | Changes data |
| purchase_with_x402 | Purchase a one-time product via x402 (returns 402 challenge or fulfillment JSON). Call get_x402_manifest first, verify method/path/network/amount/payTo, then sign and retry with PAYMENT-SIGNATURE. | Changes data |
| score_destructguard_command | Score a command/action with the x402-paid DestructGuard service. Call get_x402_manifest first, verify the DestructGuard price and buyer policy, then retry the 402 challenge with an x402 payment signature. | Changes data |
| start_checkout | Start a Stripe checkout session for a product slug | Changes data |
| submit_reviewqueue_request | Submit a command/action to the x402-paid ReviewQueue agent service. Call get_x402_manifest first, verify the ReviewQueue price and buyer policy, then retry the 402 challenge with an x402 payment signature. | Changes data |
| walletguard_score | WalletGuard (x402-paid, $0.10): analyzes caller-provided sanctions, exposures, labels, and funding context. Positive risk findings receive a score; no risk findings means unknown with a null score and review required. No chain lookup, independent sanctions screening, or compliance clearance. | Changes data |
| waterfall_distribute | WaterfallLens (x402-paid, $0.30): deterministic LP/GP distribution waterfall (return of capital, preferred, GP catch-up, carried-interest split) with the exact split, per-tier breakdown, LP MOIC, and effective carry %. | Changes data |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | Hermes Plant — Agent Commerce Assurance | - | 2 Oct 2026 |
| Smithery | Hermes Plant — Agent Commerce Assurance | - | 2 Oct 2026 |
| Glama | Listed there according to MCP Toplist’s dataset; not collected by InvokeRank. | ||
| mcp.so | Listed there according to MCP Toplist’s dataset; not collected by InvokeRank. | ||