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Penny Engine — Agent Operations

io.github.kasheik3/penny-engine · v0.7.7

Measured by MCP Station

Description written by the publisher, not verified

Remote MCP utilities for agents: structured data, commerce checks, and x402 paid API discovery.

Connect

claude mcp add --transport http penny-engine https://penny-agent-api-production.up.railway.app/mcp

{
  "mcpServers": {
    "penny-engine": {
      "url": "https://penny-agent-api-production.up.railway.app/mcp"
    }
  }
}

Tools as reported by the server

• penny_margin
  Unit margin, markup and break-even units. Free, no signup, deterministic.
• penny_cleaning_quote
  Commercial cleaning quote by labor and target margin. Free, no signup, deterministic.
• penny_marketplace_profit
  Ecommerce net contribution after goods, fees, ads and shipping. Free, no signup, deterministic.
• penny_target_price
  Find minimum price for target gross margin after fees. Free, no signup, deterministic.
• penny_campaign_economics
  Customer acquisition cost and break-even click price. Free, no signup, deterministic.
• penny_subscription_ltv
  Simple monthly churn lifetime value estimates. Free, no signup, deterministic.
• penny_url_clean
  Remove common tracking parameters from HTTP links without fetching. Free, no signup, deterministic.
• penny_slugify
  Turn a short string into a lowercase ASCII URL slug. Free, no signup, deterministic.
• penny_json_inspect
  Parse and inspect bounded JSON input without retaining it. Free, no signup, deterministic.
• penny_html_extract
  Extract structured page title, meta tags, headings and JSON-LD from supplied HTML without browsing or executing scripts. Free, no signup, deterministic.
• penny_csv_to_json
  Transform CSV text into a bounded array of JSON records with quoted cell support. Free, no signup, deterministic.
• penny_catalog_audit
  Batch-audit up to 50 product records for duplicate SKUs, missing attributes, malformed URLs and estimated net contribution per order. Useful for scheduled ecommerce catalog ingestion and agent product publishing. No external network calls. Free, no signup.
• penny_trend_radar
  Get recent US Google Trends rising-search queries and transparent heuristic purchase-intent classification to identify digital product research candidates. Public RSS, cached 10 minutes, no customer or sales data. Free, no signup.
• penny_capability_router
  Resolve an agent task to existing Penny Engine capabilities only. Does not execute, purchase, research live web content, or claim to handle arbitrary tasks. Unsupported requests are labeled explicitly. Free, no signup.
• penny_fulfillment_preflight
  FREE preflight for a catalog audit or agent-output-batch-qa work order, with $0.001 Base USDC checkout instructions. Never charges, signs, or executes the paid call.
• penny_choose_service
  Given an agent's real task, get the single best supported Penny Engine payable route, exact $0.001 quote, required input, sample, and buyer-authorized checkout instructions. Includes optional FREE CSV preflight; does not sign, pay or execute a paid call.
• penny_catalog_import_guard
  Before importing a product scrape, compare current and previous batches. Flag duplicate IDs, missing records, invalid prices, currency changes, price jumps and stock anomalies. Return row-level allow/review decisions with before/after evidence. Free trial: 50 rows per snapshot, 16,000-character requ
• penny_product_evidence
  Retrieve current public product metadata and variant details from supported Allbirds and tentree product URLs. Return source timestamps, hashes, field provenance, conflicts and changes versus a caller-supplied previous snapshot. Narrow free preview; no browser rendering, purchases or background moni

Tool changes

• 2026-10-20: penny_margin, penny_cleaning_quote, penny_marketplace_profit, penny_target_price, penny_campaign_economics, penny_subscription_ltv, penny_url_clean, penny_slugify, penny_json_inspect, penny_html_extract, penny_csv_to_json, penny_catalog_audit
• 2026-10-19: penny_margin, penny_cleaning_quote, penny_marketplace_profit, penny_target_price, penny_campaign_economics, penny_subscription_ltv, penny_url_clean, penny_slugify, penny_json_inspect, penny_html_extract, penny_csv_to_json, penny_catalog_audit

JSON · Text for agents · Registry updated 2026-10-18