Small print.
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mercado
libre

Customer since 2023

Transforming e-commerce

in Latin America

Results

>100%

Merged code up year over year

Code submissions reviewed
autonomously over the past year

500,000+

Non-tech teams active in
Cowork weekly

78%

Background

Mercado Libre is the leading e-commerce and financial
technology company in Latin America, with operations in 18
countries. It made its developers more productive by rolling
out Claude Code across its engineering organization. The
goal was to help the team ship faster by shifting the upkeep
of its infrastructure—version migrations, dependency
patches, and test coverage across 40,000 microservices—
onto Claude.

Impact

Mercado Libre evaluated multiple AI providers to find one
that could autonomously handle more of its operational
burden and make its engineering team more effective. It uses
Claude Code for its most demanding workloads—codebase
migrations, automated code review, and test generation—and
for individual developer productivity. Mercado Libre became
one of the earliest adopters in January 2025; today 23,000+
developers across the organization use it. Claude also runs
the company’s wide-scale autonomous changes: over the
past year, agents with human oversight have reviewed more
than halfa million code submissions and migrated roughly
9,000 services to newer platforms.

The productivity gains are already significant: in Q2 2026,
code submissions rose 110% year over year, merged code
more than 100%, and deployments nearly 75%. Quality
improved at the same time, with rollbacks down year over
year. In 2025, about 40% of the code Mercado Libre shipped
to production was written by Claude and reviewed by a
human engineer before release. By 2026, human-written
code has become the exception. The change reshaped the
company’s development team, with 30% of managerial roles

“Productivity gains with AI have put
our most senior engineers back to
building code, not just reviewing it.
Claude Cowork now reaches 31,000
employees—one of the largest
enterprise deployments globally.”

Mercado Libre

now contributing code again. Mercado Libre’s near-term
goal is for 90% of its coding to run autonomously, including
the full pull-request review process. It also plans to fold its
separate backend, frontend, and database roles into a single
builder role, with agents filling the gaps.

Mercado Libre then extended Claude to non-engineering
teams. Finance went first: within a month, most of the team
had adopted Claude Cowork, using shared skills to generate
branded presentations in minutes—work that used to take
several people hours a week. Cowork also shortened the
monthly financial close by a third and improved internal
reporting. Finance can now preview the close on demand
instead of waiting for month end, so the team spots shifts
like rising costs sooner and reacts faster. Because Claude is
grounded in Mercado Libre’s business context, it also drafts
the first explanations for why results moved, which the
business and finance teams then validate. From there it
spread across marketing, HR, legal, compliance, and the
business and commercial teams, reaching more than 26,500
people across these teams—78% of them now active every
week. Some procurement teams even built their own
Claude-powered agents to field supplier questions, without
involving IT. “I'd almost say we no longer use spreadsheets
—everything’s automated, and we have dashboards built on
Claude all over the place. Now we're redesigning core
processes from scratch, AI-first—things people always
dreamed of but thought were impossible,” said Maria Pia
Garcia, Strategic Transformation Director at Mercado Libre.