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AgentMail

AgentMail is an API-first email provider enabling developers to create unlimited email inboxes for AI agents without authentication or rate limits. The YC S25 startup processes hundreds of millions of emails and is expanding into managed agents and no-code creation tools.

Backed by General Catalyst, Phosphor Capital, Y Combinator

See 7 open roles
Locations
San Francisco+1
Also California
Team size
501-1000
Founded 2025
Total raised
$6M
Series B · last round Mar '26
Salary range
$110–250k
+ equity · 6 of 7 roles
Visa
Visa sponsorship
1 of 7 roles

Open positions · 7

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About AgentMail

AgentMail is an API-first email provider designed for AI agents, enabling developers to create unlimited email inboxes on demand without authentication hassles, sending limits, or rate limits. Each agent receives its own email identity and can send, receive, and act on email programmatically, giving AI systems full email capabilities. The San Francisco-based company, a YC S25 startup, has already processed hundreds of millions of emails for developers and maintains a developer-first approach across all its products. Beyond its core platform, AgentMail is building managed agents and a Studio experience to enable one-click agent creation, making AI email integration accessible to an even broader audience.

Culture & values

Bottom-up ownership: team members are expected to talk to users, spot problems with measurable impact, and build solutions themselves

Engineers take part in the whole product process including user conversations, prioritization, design, code, shipping and measuring results

No PM specs or Figma handoffs in the workflow

Close to customers with highly technical developer users and immediate visibility of impact

Founders handle support tickets and talk to users every day

AI-first workflows with focus on judgment, taste and product sense

Team works on-site in San Francisco five days a week

Scrappy, fast-moving startup environment

Social and community-oriented with events such as founder dinners, VC dinners and poker nights

Small, early-stage team where everyone works directly with the founders and early engineering team

Team is hands-on and generalist

Values agency over process

Funding

$6Mtotal raised

Mar '26
  • Mar 2026 · SeedGeneral Catalyst, Y Combinator, Phosphor Capital
    $6M
  • General Catalyst
  • Phosphor Capital
  • Y Combinator

Company at a glance

Founded2025
Locations
California, United States ·San Francisco, United States
Websiteagentmail.to
LinkedInLinkedIn

The team at AgentMail

501-1000 peopleSee everyone on LinkedIn

Adi Singh

Co-Founder, AgentMail (YC S25)

Haakam Aujla

CS @ UMich

Michael Kim

Cofounder @AgentMail (YC S25) | ex-meta, ex-nvidia

Binoy Perera

Biz Ops | GTM | Community | DevRel | Product Architect

Team breakdown

Team Distribution

  • Engineering55%
  • Leadership27%
  • Sales & Business Development9%
  • Operations9%

Where the Team Studied

  1. 1.University of Michigan
  2. 2.Georgia Institute of Technology
  3. 3.The London School of Economics and Political Science
  4. 4.Georgetown University
  5. 5.University of Illinois Urbana-Champaign

Team Worked At

  • Meta
  • NVIDIA
  • LinkedIn

Location

Team Composition

11 people
  • Engineering and Technical4
  • Consulting2 senior2
  • General Management2 senior2
  • Project Management1
  • Research1

Life at AgentMail

Frequently asked questions

Of 7 open roles, AgentMail has 7 on-site positions.

AgentMail is based in California, San Francisco.

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