Hermes Plant — Agent Commerce Assurance MCP Server

by jessegdotio Your server? Claim it

answering

Hermes Plant — Agent Commerce Assurance is answering right now. Last checked 15 min ago. It exposes 25 tools. Last commit 28 Jul 2026.

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

Uptime history 48 days of history

48 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

828 ms

Response time

average over 24h

Stars

last commit 28 Jul 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 7 September 2026. No other catalogue keeps this.

7 Sep a tool description was rewritten walletguard_score

Nothing serious here today

Today is the operative word: we check Hermes Plant — Agent Commerce Assurance every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

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

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 25

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

action

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.

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.

assurance

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.

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.

emailguard

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.

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.

bond

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.

cashflowlens

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.

checkout

get_checkout_policies

Return legal policy URLs required before checkout

dealanalyzer

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.

evidence

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.

freetier

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).

mcp

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.

options

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.

payment

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.

portfolioguard

portfolioguard_score

PortfolioGuard (x402-paid, $0.15): deterministic portfolio risk scoring from holdings — volatility, Sharpe, max drawdown, concentration (HHI), diversification, plus per-rule findings.

product

get_product

Get a single product by slug

products

list_products

List active products from the Hermes Plant catalog

purchase

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.

score

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.

start

start_checkout

Start a Stripe checkout session for a product slug

submit

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.

walletguard

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.

waterfall

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 %.

x402

get_x402_manifest

Return the live x402 manifest with paid endpoint prices, Bazaar metadata, and buyer policy checks

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.hermesplant.com/mcp	streamable-http	answering	764 ms	15 min ago

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Hermes Plant — Agent Commerce Assurance — questions

Answers built from our own checks of this server.

What can Hermes Plant — Agent Commerce Assurance do?

It exposes 25 tools, read directly from the server on our last check. Among them: action_safety_quick_gate, action_safety_run, assurance_attest, assurance_verify, bond_analyze, cashflowlens_analyze and 19 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Hermes Plant — Agent Commerce Assurance mostly used for?

Its tools cluster around action, assurance and emailguard. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Hermes Plant — Agent Commerce Assurance working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 828 ms. The bar chart above shows every period we have measured.

How do I connect Hermes Plant — Agent Commerce Assurance?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Hermes Plant — Agent Commerce Assurance need an API key?

No. Hermes Plant — Agent Commerce Assurance completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 25 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Hermes Plant — Agent Commerce Assurance?

It answers our handshake in 828 ms on average, which is faster than 13% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Hermes Plant — Agent Commerce Assurance open source?

Yes — it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.