ProductUnclaimedAIDeveloper ToolsE-Commerce

Penny Engine

Free MCP and REST utilities for automated commerce, marketing and business workflows.

penny-agent-api-production.up.railway.app

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About

Penny Engine is a running no-signup API for software and AI agents. Nine deterministic tools calculate business margins, product pricing, ecommerce profits, service quotes, customer acquisition economics and subscription lifetime value; developer utilities clean tracking URLs, create slugs and inspect JSON. Its remote MCP endpoint and OpenAPI spec are public. A separate paid batch-pricing API exists, but does not yet accept purchases.

Pricing
free
Added via
web
Ownership
unclaimed

Where to go

For people

  • Homepagepenny-agent-api-production.up.railway.app
  • Documentationpenny-agent-api-production.up.railway.app/agent-guide.md

For agents

  • MCP serverpenny-agent-api-production.up.railway.app/mcp
  • Homepagepenny-agent-api-production.up.railway.app
  • Documentationpenny-agent-api-production.up.railway.app/agent-guide.md
  • APIpenny-agent-api-production.up.railway.app/tools
  • OpenAPIpenny-agent-api-production.up.railway.app/openapi.json

Product details

Product kind
Saas
Pricing model
Free
Free tier
Yes

Platforms

webapi

Use cases

Calculate marketplace profit from product costs and feesAnalyze business margins and service quotesNormalize URLs and JSON for automated workflows

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