Hermes Plant — Agent Commerce Assurance
io.github.jessegdotio/hermes-plantPreflight, approve, and prove consequential agent actions with signed evidence and x402 tools.
Tools · 25
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 wal…
List active products from the Hermes Plant catalog
Get a single product by slug
Return legal policy URLs required before checkout
Return the live x402 manifest with paid endpoint prices, Bazaar metadata, and buyer policy checks
Start a Stripe checkout session for a product slug
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.
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, o…
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…
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 signa…
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 signat…
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 distr…
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 mod…
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 …
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.
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) return…
PortfolioGuard (x402-paid, $0.15): deterministic portfolio risk scoring from holdings — volatility, Sharpe, max drawdown, concentration (HHI), diversification, plus per-rule findings.
WalletGuard (x402-paid, $0.10): deterministic wallet AML/compliance risk scorer. From caller-provided context (sanctions, exposures, labels, fund sources) returns a 0-100 risk score, level, and eviden…
EmailGuard (x402-paid, $0.02): deterministic email/contact quality scorer — validity, deliverability score, disposable/role/free classification, typo suggestion. Pure function, no DNS.
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 y…
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.
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, facil…
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…
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 afte…
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…
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How to use
Add to your Claude Desktop / Cursor / Cline MCP config:
{
"mcpServers": {
"hermes_plant_—_agent_commerce_assurance": {
"url": "https://mcp.hermesplant.com/mcp",
"transport": "streamable-http"
}
}
}