MCP server

Penny Engine — Agent Operations

io.github.kasheik3/penny-engine

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

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

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

18

Token cost

About 2,597 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 penny-engine https://penny-agent-api-production.up.railway.app/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.penny-engine]
url = "https://penny-agent-api-production.up.railway.app/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"penny-engine":{"type":"http","url":"https://penny-agent-api-production.up.railway.app/mcp"}}}

Antigravity

agy mcp add penny-engine https://penny-agent-api-production.up.railway.app/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":"penny-engine","server_url":"https://penny-agent-api-production.up.railway.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"penny-engine","server_url":"https://penny-agent-api-production.up.railway.app/mcp"}

Tools

• penny_campaign_economics ~116 tokens
  Customer acquisition cost and break-even click price. Free, no signup, deterministic.
• penny_capability_router ~121 tokens
  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_catalog_audit ~260 tokens
  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_catalog_import_guard ~377 tokens
  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_choose_service ~176 tokens
  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_cleaning_quote ~125 tokens
  Commercial cleaning quote by labor and target margin. Free, no signup, deterministic.
• penny_csv_to_json ~80 tokens
  Transform CSV text into a bounded array of JSON records with quoted cell support. Free, no signup, deterministic.
• penny_fulfillment_preflight ~240 tokens
  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_html_extract ~92 tokens
  Extract structured page title, meta tags, headings and JSON-LD from supplied HTML without browsing or executing scripts. Free, no signup, deterministic.
• penny_json_inspect ~74 tokens
  Parse and inspect bounded JSON input without retaining it. Free, no signup, deterministic.
• penny_margin ~90 tokens
  Unit margin, markup and break-even units. Free, no signup, deterministic.
• penny_marketplace_profit ~141 tokens
  Ecommerce net contribution after goods, fees, ads and shipping. Free, no signup, deterministic.
• penny_product_evidence ~171 tokens
  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
• penny_slugify ~71 tokens
  Turn a short string into a lowercase ASCII URL slug. Free, no signup, deterministic.
• penny_subscription_ltv ~114 tokens
  Simple monthly churn lifetime value estimates. Free, no signup, deterministic.
• penny_target_price ~99 tokens
  Find minimum price for target gross margin after fees. Free, no signup, deterministic.
• penny_trend_radar ~164 tokens
  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_url_clean ~86 tokens
  Remove common tracking parameters from HTTP links without fetching. Free, no signup, deterministic.

Browse

• GitHub tools
• Web scraping
• Website monitoring
• Spreadsheets
• Payments

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