You can ask Claude, ChatGPT, Cursor or Codex whether Brazil or Mexico is ready for your product and get the answer from a tool we run. We published five free MCP servers. You don't need an account or an API key.

To add one in Claude Code, run:
claude mcp add --transport http latam-fit https://tools.realmarketlabs.com/mcp/latam-fit

In Claude.ai or ChatGPT, open the connector settings, add a custom connector and paste the same URL. Cursor and Codex take the URL in their MCP configuration file.

LATAM Fit has two tools. The first compares up to three countries on seven points: buyer, offer, language, sales channel, payments, delivery and local requirements. You, or your agent after some research, mark each point as ready, needs adaptation, blocked or unknown. The tool returns the blockers and the open questions for each country. It does not rank countries or forecast sales, because a readiness checklist says nothing about demand.

The second tool does the test math. Say you sell a US$ 49 monthly plan, each new customer costs you US$ 9 in variable costs, and you have US$ 1,500 for a first test. The tool returns US$ 40 of contribution per sale and 38 sales to recover the test budget. Add what you spent and how many customers you got, and it also returns your acquisition cost.

We ran Brazil and Mexico through the first tool for a sample product. Brazil came back ready on buyer and offer, with language and payments to adapt. Mexico came back ready on buyer, language and payments. Both came back with insufficient evidence, and the tool listed channel, delivery and local requirements as unknown in both. That list of unknowns is your research plan for the week.

The other four servers:

Site Check reads the public DNS and pages of a site and reports email authentication (SPF, DKIM, DMARC), basic security headers, exposures in apps built with AI tools, and Shopify store features.
https://tools.realmarketlabs.com/mcp/site-check

Survey Builder drafts a consumer research questionnaire for packaging, concepts, pricing or repeat purchase, with screening questions and sections.
https://tools.realmarketlabs.com/mcp/survey-builder

E-Signature Cost compares what a Brazilian company pays for electronic signatures today with public prices from other providers, per document and per year, in reais.
https://tools.realmarketlabs.com/mcp/esign-cost

Review Time estimates the hours and the cost of a systematic or literature review, split into screening and full-text reading.
https://tools.realmarketlabs.com/mcp/review-time

The site checks read public DNS records and public pages only. They never log in or submit forms. We keep call records for 90 days for security and service quality, and we don't use them to contact anyone. The details are in section 15 of our privacy policy: https://realmarketlabs.com/privacy

You can also find the five servers in the official MCP Registry under com.realmarketlabs.tools. The full list, with setup steps for each client, lives at https://tools.realmarketlabs.com/llms.txt

If the readiness check points to a market worth testing, RealMarket Labs takes software products into Brazil and Latin America. Write to hello@realmarketlabs.com and tell us what you sell.