Treg

treg.to is a metered gateway that gives AI agents access to third party tools and data through one MCP server and one API key. The site describes it as an OpenRouter for agent tools, with more than 3,900 endpoints across 111 providers covering SEO, backlinks, people and company enrichment, ads, social publishing and scraped web data. Instead of opening separate accounts with each data vendor, a team connects an agent to treg.to and calls the catalog. Providers listed include Semrush, Moz, Hunter, Apollo, Crunchbase, SerpApi and DataForSEO, among many others. Teams can register their own keys for a provider, in which case those calls run on the team's account and are never metered, and they can connect their own OAuth accounts or register their own tools. Each call shows its cost before it runs, and workflow receipts break down spending per step, including how misses are billed. The service is open source and publishes an llms.txt documentation index for agents setting it up. It suits marketers, growth teams and developers building research and lead generation agents. Pricing is a prepaid balance charged per call at each provider's own rate, with no markup, no seats and no monthly minimum. New accounts start with $1.00 of free credit, and calls stop with an explicit error when the balance runs out.