Scalekit AgentKit: Auth and Tool Calling for AI Agents
Scalekit is an authentication company for software that now spends most of its attention on AI agents. Its main agent product, AgentKit, is an MCP gateway: one endpoint that connects an agent to more than 600 apps and 30,000 tools, where each user connects their own accounts and the agent acts as that user. Scalekit stores and refreshes the tokens, checks permissions on every call, limits which tools each agent can see, and logs every action. It also sells login infrastructure for business software, including single sign-on, SCIM provisioning and passwordless login, and an OAuth server for people building MCP servers.
The quick answer: Scalekit is a younger, auth-first entrant in agent infrastructure, built by the team behind Freshworks’ sign-in platform. Its distinctive ideas are “virtual” MCP servers that give each agent role only the handful of tools it needs, and triggers that start an agent when something happens in a user’s connected app. It has a free tier and a $99-a-month Growth plan. A disclosure: we make Carly, an AI assistant that connects to thousands of apps for its users, so we work on a related problem from the end-user side. Everything below comes from Scalekit’s site, docs and funding coverage.
Scalekit at a glance
Checked against Scalekit’s site, documentation, pricing and funding coverage on November 12, 2026.
| Scalekit | |
|---|---|
| What it is | AgentKit, an MCP gateway for agents, plus authentication for business software and MCP servers |
| Connectors | 600+ connectors and 30,000+ tools behind one MCP endpoint |
| Key features | Per-user OAuth, scoped tool access, virtual MCP servers, triggers, call logs |
| Works with | Any MCP client, plus frameworks like LangChain and Google ADK, and a CLI |
| Pricing | Free; Growth $99 a month with 100,000 tool calls; Enterprise custom |
| Company | Founded 2024 by Satya Devarakonda and Ravi Madabhushi; $5.5M seed |
| Best for | Teams building agents that act in each customer’s own SaaS accounts |
What AgentKit does
Scalekit’s homepage describes AgentKit as “one MCP gateway between your agent and every tool it calls,” handling the right credentials, a permission check and a readable response on every call, “so you build the agent, not the integration layer.” Its summary for developers puts the core idea plainly: AgentKit “lets an AI agent act as the user, not as a shared service account.”
What that covers:
- Users connect their own accounts. “We store the tokens, refresh them, and attach them to every call. Nothing lands in your code.”
- 600+ connectors. CRM, email, calendar, tickets, docs and billing. Each tool is written for an agent, so it picks the right arguments.
- Scoped tool access. You decide which tools each agent can see, and “the gateway enforces it, so it doesn’t rely on instructions in your prompt.”
- Logs on every call. Which agent, which user, which tool and what came back, searchable and streamable to Datadog, Splunk or any security monitoring system.
You can bring your own OAuth app credentials, and data at rest is encrypted with a key Scalekit manages or your own Google Cloud KMS key.
Virtual MCP servers
Scalekit’s most distinctive feature addresses a real problem with agent tools: too many of them. Connect four apps and an agent might see more than 100 tools, which wastes tokens and invites wrong choices.
A virtual MCP server “exposes the tools you choose, for one user at a time, to any MCP client.” You create one server per agent role, such as a support assistant, pick only the tools that job needs from any of the connected apps, and all your users share it. Before each run, you create a session token for one user, and the agent can call only those tools, as that user. Scalekit’s docs give a simple example: “A Gmail connection has dozens of tools. A summarizer needs one.”
Scalekit says this cuts tool overhead by around 80%, and gives three reasons it helps: each agent gets only its role’s tools, fewer choices mean fewer wrong calls, and the same job produces the same result.
Triggers
AgentKit can also start an agent when something happens in an app a user has connected, such as a new email, a deal changing stage or a failed payment. The agent starts “already acting as that user,” using the accounts the user already connected. That turns an agent from something you prompt into something that reacts to events.
Auth for SaaS and MCP servers
Scalekit began as authentication infrastructure for business software, and still sells it:
- Enterprise sign-in. Single sign-on, SCIM user provisioning, an admin portal for customers to set these up themselves, social login and passwordless login.
- MCP auth. An OAuth 2.1 authorization server for teams building MCP servers, so clients like Claude and Cursor can authenticate on their own.
One customer, the founder of Ref.tools, described the result on Scalekit’s pricing page: “Claude, Cursor and everything else authenticate themselves without me registering anything.”
Pricing
Scalekit’s AgentKit pricing has three tiers:
| Plan | Price | What it includes |
|---|---|---|
| Free | $0 | Capped monthly tool calls and trigger events, unlimited connected accounts, all 600+ connectors |
| Growth | $99 a month | 100,000 tool calls, then $0.50 per 1,000; custom connectors, API proxy, branding, Slack support |
| Enterprise | Custom | Custom volume, SSO and SCIM for your dashboard, BYOK, SIEM streaming, HIPAA BAA, 99.99% SLA, VPC or on-premises |
EU data residency is a $99-a-month add-on on Growth.
What customers say
Scalekit’s pricing page quotes customers on the problem it solves. Roddy Richards, founder of RocketBench, said his agents work inside clients’ own Monday, ClickUp and Asana boards, so “every call has to carry that user’s credentials,” and building that themselves “was going to eat the whole summer.” With Scalekit, “we were in production the day we signed up, never wrote an OAuth handler.” These are testimonials Scalekit selected, not independent reviews.
The company
Scalekit was founded in 2024 by Satya Devarakonda, its CEO, and Ravi Madabhushi, its CTO. The team previously built the authentication platform at Freshworks. “After scaling auth for 50,000+ businesses at Freshworks, we saw the next challenge coming: identities that live in code, not user directories,” the founders said when Scalekit announced a $5.5 million seed round in September 2025, co-led by Together Fund and Z47.
In SecurityWeek’s coverage, Devarakonda summed up the shift: “For years, software focused on blocking bots. Now business apps must let authenticated agents in and decide exactly what data they can read or write.”
How Scalekit compares
Scalekit competes with Arcade.dev, Nango, Auth0 Token Vault and Composio, which our Composio alternatives guide compares. Its differences are the virtual MCP servers for trimming each agent’s toolset, built-in triggers from connected apps, and the combination of agent auth with traditional enterprise sign-in in one company. Arcade leans harder into enterprise governance, Nango into integration code and data syncs, and Auth0 into an identity platform many companies already run.
Scalekit is for developers building agents. If you want an assistant that’s already connected to the apps you use, Carly connects to thousands of apps, labels and sorts email across all your Gmail and Outlook accounts by your rules, handles advanced scheduling, and makes and answers calls and texts, from inside ChatGPT or Claude or by text.
Who Scalekit suits
Scalekit is a good fit if:
- Your agents need to act inside each customer’s own SaaS accounts with that customer’s permissions.
- You want to give each agent role a small, fixed set of tools.
- You want agents to start automatically on events like new emails or deal changes.
- You also need SSO, SCIM or OAuth for an MCP server you’re building.
Look elsewhere if:
- You need data syncs into your own database more than agent actions.
- You want a long track record; the company was founded in 2024.
- You’re an end user looking for an assistant, not a developer building one.
FAQ
What is Scalekit?
Scalekit is an authentication company whose AgentKit product is an MCP gateway for AI agents. It connects agents to 600+ apps and 30,000+ tools, handling per-user OAuth, scoped tool access and logs. It also sells SSO, SCIM and passwordless login for business software.
What is a virtual MCP server?
A Scalekit virtual MCP server is one endpoint that exposes only the tools you pick, from one or more apps, to an agent acting for one user at a time. You create one per agent role.
How much does Scalekit cost?
AgentKit has a free plan with capped usage, a Growth plan at $99 a month with 100,000 tool calls and $0.50 per extra 1,000, and custom Enterprise pricing.
Who founded Scalekit?
Satya Devarakonda and Ravi Madabhushi founded Scalekit in 2024, after building Freshworks’ authentication platform. It raised a $5.5 million seed round in September 2025.
Does Scalekit work with Claude and Cursor?
Yes. AgentKit works with any MCP client, and Scalekit’s MCP auth lets clients like Claude and Cursor authenticate to MCP servers you build.
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