About Keystone
Named for the stone that holds the arch.
In an arch, the keystone is the last stone set at the top, the one that locks every other stone in place. That's the job we take on for our clients: the technology the rest of the business leans on.
Who we are
A technology partner for companies that run on software.
Keystone Technologies is a technology development and consulting company based in Mumbai, India. We provide software development, technology consulting and related digital services: custom client platforms, web and mobile apps, backend systems and AI integrations.
Building those systems taught us where the real cost sits in most businesses. It isn't the software itself. It's the repetitive operational work people do around it. That's why we're launching Agent as a Service: purpose-built AI agents, deployed directly into a client's existing systems, each with a defined role and trained on that client's own data, tone and SOPs.
Whether we're building a platform or deploying an agent, the approach is the same: understand the work, design it properly and stay accountable for how it performs.
Principles
What we hold ourselves to.
01
Work inside the business, not beside it
The best technology disappears into how a company already operates. We build into your systems rather than adding another layer to manage.
02
Outcomes over output
Hours removed, response times cut, revenue recovered. We agree the measures up front and report against them.
03
Humans stay in charge
Clear permissions, logged actions and human approval on anything sensitive. Automation should earn trust, not assume it.
04
Plain contracts, clear ownership
Scope, pricing, IP and data handling are written down before work begins, so there are no surprises later.
Team
A compact, cross-functional team.
Led by our founder & CEO and our COO, and delivered by the same core functions on every engagement, from the first scoping call through production and beyond.
Leadership
Agastya Mehta
Founder, CEO
Leads Keystone Technologies
Founded Keystone and heads the entire company, from strategy and client relationships to operations, delivery and the Agent as a Service line.
Darsh Shah
Chief Operating Officer
Oversees how Keystone runs day to day: delivery, processes and client success across every engagement.
Core functions
01
Engagement & Product
Defines each project's scope, operating role and success metrics, and keeps delivery on track.
02
AI & Automation Engineering
Builds, trains and tunes agents and AI features, including evaluation and guardrails.
03
Full-stack Engineering
Builds the apps, platforms and integrations, plus the monitoring layer behind every agent.
04
Implementation & QA
Validates workflows, permissions, edge cases and production readiness before anything ships.
Tell us what's slowing your team down. We'll show you what we'd build.
No pitch deck. A direct conversation about your systems, your workflows and what it would take to fix them.