MCP server

Hermes Plant — Agent Commerce Assurance

io.github.JesseGdotIO/hermes-plant

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Preflight, approve, and prove consequential agent actions with signed evidence and x402 tools.

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

25

Token cost

About 12,361 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http hermes-plant https://mcp.hermesplant.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.hermes-plant]
url = "https://mcp.hermesplant.com/mcp"

Gemini CLI

{"mcpServers":{"hermes-plant":{"httpUrl":"https://mcp.hermesplant.com/mcp"}}}

Cursor

{"mcpServers":{"hermes-plant":{"url":"https://mcp.hermesplant.com/mcp"}}}

VS Code

{"servers":{"hermes-plant":{"type":"http","url":"https://mcp.hermesplant.com/mcp"}}}

Antigravity

agy mcp add hermes-plant https://mcp.hermesplant.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"hermes-plant","server_url":"https://mcp.hermesplant.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"hermes-plant","server_url":"https://mcp.hermesplant.com/mcp"}

Tools

• action_safety_quick_gate ~612 tokens
  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.
• action_safety_run ~615 tokens
  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.
• assurance_attest ~757 tokens
  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 fr
• assurance_verify ~231 tokens
  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.
• bond_analyze ~625 tokens
  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.
• cashflowlens_analyze ~711 tokens
  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.
• dealanalyzer_analyze ~831 tokens
  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.
• emailguard_validate ~524 tokens
  EmailGuard (x402-paid, $0.02): deterministic email/contact quality scorer — validity, deliverability score, disposable/role/free classification, typo suggestion. Pure function, no DNS.
• emailguard_validate_batch ~607 tokens
  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
• evidence_verify ~650 tokens
  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 / i
• freetier_status Sends messages · ~128 tokens
  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).
• get_checkout_policies ~57 tokens
  Return legal policy URLs required before checkout
• get_product ~74 tokens
  Get a single product by slug
• get_x402_manifest ~70 tokens
  Return the live x402 manifest with paid endpoint prices, Bazaar metadata, and buyer policy checks
• list_products ~55 tokens
  List active products from the Hermes Plant catalog
• mcp_risk_score ~596 tokens
  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.
• options_price ~602 tokens
  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.
• payment_policy_decide ~845 tokens
  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 i
• portfolioguard_score ~592 tokens
  PortfolioGuard (x402-paid, $0.15): deterministic portfolio risk scoring from holdings — volatility, Sharpe, max drawdown, concentration (HHI), diversification, plus per-rule findings.
• purchase_with_x402 Moves money · ~518 tokens
  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.
• score_destructguard_command ~572 tokens
  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.
• start_checkout Moves money · ~80 tokens
  Start a Stripe checkout session for a product slug
• submit_reviewqueue_request ~572 tokens
  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.
• walletguard_score ~773 tokens
  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.
• waterfall_distribute ~664 tokens
  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 %.

Browse

• GitHub tools
• Domains and DNS
• Email
• Payments
• Legal research

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