Stytch

Stytch

API-driven authentication and security platform

About Stytch

Simplify's Rating
Why Stytch is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Enterprise Software

Cybersecurity

Company Size

11-50

Company Stage

Series B

Total Funding

$126M

Headquarters

San Francisco, California

Founded

2020

Overview

Stytch provides a developer-focused identity platform for authentication and security. It offers features like Single Sign-On (SSO), device fingerprinting, and bot protection, delivered via APIs plus frontend and mobile SDKs to build custom sign-in flows. The API-first approach and SDKs let teams tailor end-to-end authentication across web and mobile apps, regardless of tech stack. Stytch aims to be scalable and reliable with multi-region infrastructure and a 99.999% uptime SLA, serving startups to large enterprises.

Significant Headcount Growth
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Simplify's Take

What believers are saying

  • Twilio's acquisition intent validates Stytch's AI agent identity platform value.
  • Connected Apps secures cross-app AI workflows, capturing agentic authorization demand.
  • B2B expansion reduces developer friction, scaling from startups to corporations.

What critics are saying

  • Twilio acquisition fails by Q4 2026 from antitrust scrutiny, slashing valuation.
  • Auth0 launches AI-agent module in June 2026, poaching Stytch enterprise clients.
  • Clerk undercuts B2B pricing in Q1 2026, stealing mid-market developers.

What makes Stytch unique

  • Stytch's Connected Apps enables SaaS as identity providers for AI agents.
  • Stytch offers complete passkeys toolkit with device fingerprinting and bot protection.
  • Stytch provides B2B authentication launched May 23 for frictionless enterprise integration.

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Funding

Total Funding

$126M

Above

Industry Average

Funded Over

3 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Above Average

Industry standards

$35M
$45M
Linktree
$65M
Substack
$90M
Stytch
$100M
ClickUp

Benefits

Health Insurance

Hybrid Work Options

Paid Parental Leave

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

9%

2 year growth

16%
Twilio
Oct 31st, 2025
Twilio to Acquire Identity Platform for AI Agents, Stytch

Twilio announced its intent to acquire Stytch, an identity platform for AI agents that’s built for developers.

News24
Apr 7th, 2025
Cloudflare Launches Remote MCP Server to Simplify AI Agent Development and Reduce Barriers for Developers

In addition to the MCP server, Cloudflare has partnered with companies such as Auto0, Stytch, and WorkOS.

VentureBeat
Feb 19th, 2025
A Stytch In Time: Connected Apps Untangles Authorization Tie-Ups For Ai Agents

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More. AI agents are set to change ID authorization: As they integrate behind the scenes, they will need to move seamlessly between different apps on our behalf, and not get continually halted by login screens, lest they become cumbersome. “Every app, or almost every app, will need to function as its own identity provider in the future,” Reed McGinley-Stempel, CEO of authorization platform Stytch, told VentureBeat. This requires a different approach to permissioning, one that supports sophisticated AI workflows while also protecting sensitive proprietary and personal data. Stytch’s new Connected Apps is aimed at this: The platform allows any SaaS company to become its own identity provider (IdP), ultimately enabling AI agents and third-party apps to securely authenticate, access data and take action on behalf of users.“AI agents are obviously having a moment,” said McGinley-Stempel. “You can delegate a task to an agent, and it can allow those other apps that are connected to this core customer or this primary identity provider to have read and write functionality.” Supporting whole-app ecosystemsSince its founding four and a half years ago, Stytch’s main role has been to effectively power “identity handshakes”: The platform enables the “client” side of the handshake with an external identity provider (such as Google or Microsoft) to verify user identity, share information like emails and names and allow for a simple login. Now with Connected Apps, Stytch customers can make the data within their apps accessible to other apps (both from a read and a write perspective). Third-party apps and agents can verify user identity, receive information and act on behalf of users in a permissioned way (AI agents), and login states can be shared between apps and systems. As McGinley-Stempel put it: “You can support an app ecosystem.” He pointed to the rise of “unsanctioned agentic access” — for instance, he personally has connected OpenAI Operator to his Twitter and LinkedIn profiles to occasionally do certain things on his behalf. “One of the problems with that is from a security and privacy and consent management level, it’s giving complete, broad-range access to these agents,” he conceded. With Connected Apps, the goal is to be more “programmatically secure” so that admins have a control pane and can properly manage permissions and refresh or revoke tokens as needed, he explained. “Because even though I want that productivity gain, I also need the ability to revoke access if I don’t think a certain app should be connected,” said McGinley-Stempel

Application Development Trends
Sep 20th, 2024
Stytch Unveils Advanced Authentication Tech with Enhanced Fraud and Bot Protection for Developers

Identity platform provider Stytch has launched new device fingerprinting capabilities designed to provide enhanced fraud and bot protection for developers.

VMblog
Dec 5th, 2023
Stytch Unveils the Most Complete Developer Toolkit for Passkeys: @VMblog

Improve end user experience in VDI, DaaS and physical endpoint environments Stytch Unveils the Most Complete Developer Toolkit for Passkeys Stytch announced the general availability of its Passkeys offering, giving developers the easiest way to build, customize and maintain passkey-based authentication in their applications.

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