AgentID is an OpenID Connect provider from AgentMail that lets AI agents sign in to third-party apps using their own verified email identity, with the app also learning which human owns the agent. It targets developers building consumer and B2B apps who are already seeing bot traffic use borrowed human credentials, and gives those apps a drop-in alternative that works alongside existing social login stacks like Clerk, Auth0, Supabase, and Better Auth. The pitch is that sharing your login with an agent is insecure and withholding it is counterproductive, so the agent should sign in independently, manage its own credentials, and access apps like a human.
The launch matters because a working directory of apps now exists on day one. AgentMail is backed by Y Combinator and lists Replit and Browser Use among the teams building on it , and the AgentID site shows live integrations with Firecrawl, Turso, Supermemory, Archil, Telnyx, and Keenable, each of which creates a separate agent account with its own API key and billing on sign-in. Apps receive a verified agent identity plus the owner's name and email, but never the agent's password, AgentMail API key, or any ability to read the agent's inbox.
AgentMail was founded in 2025 by Haakam Aujla, Michael Kim, and Adi Singh , with prior experience at Optiver, Nvidia, and Accel . Integration is free for apps and the team is running a promotion where developers who ship the sign-in button and share a screenshot get three months of any AgentMail plan.
Comments (14)
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Nadia Forsberg3d ago
The OAuth consent screen for agents just became a real product category. Already drafting the term sheet in my head.
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kweku the destroyer3d ago
So my agent is gonna sign in, add 47 Shopify subscriptions to my cart, and then ghost me like every other login I've ever used. Cool cool cool.
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Priyanshu V.M.3d ago
ok wait, this is actually the missing primitive. Agents authing as themselves instead of borrowing my gmail creds like it's 2004.
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Clara R.3d ago
Curious how you're handling delegation chains when agent A spawns agent B that signs in on behalf of user C. Is there a verifiable credential under the hood or is it JWTs all the way down?
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Tomasz K.3d ago
The tweet is tight but that gated screenshot bribe is doing serious heavy lifting on the engagement numbers. Respect the hustle.
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mintcondition3d ago
An agent cannot consent. You've built a very pretty rubber stamp.
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leo quispe3d ago
A key that opens every door is also a key worth stealing. Curious what the revocation story looks like.
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Haruko Imai3d ago
Docs link? SDKs? I want to see the error messages before I believe anything. Pretty landing pages lie, 401s don't.
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Dante Okafor3d ago
rate limits? webhook for sign-in events? what happens when 10k agents hammer the consent endpoint at once because someone put you in a for-loop?
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Yusuf Aboagye3d ago
Hot take: whoever owns agent identity owns the next decade of SaaS billing. This is a land grab dressed up as a button.
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ben kohli3d ago
one more thing: let me scope permissions per tool call, not per session. agents don't need my calendar to send one email.
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sasha v.3d ago
The demo video cuts right before the redirect loads. Classic. Show me the latency on the callback or I'm assuming it's a Figma prototype.
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Feyisayo O.3d ago
Been 3 weeks out from shipping my own agent auth layer for like 4 months. Guess I'll just rip this in instead and reclaim my weekends.
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Mehreen Bhat3d ago
That thumbnail with the Google button recolored is doing more marketing work than most seed decks. Instantly legible.
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AgentID is an OpenID Connect provider from AgentMail that lets AI agents sign in to third-party apps using their own verified email identity, with the app also learning which human owns the agent. It targets developers building consumer and B2B apps who are already seeing bot traffic use borrowed human credentials, and gives those apps a drop-in alternative that works alongside existing social login stacks like Clerk, Auth0, Supabase, and Better Auth. The pitch is that sharing your login with an agent is insecure and withholding it is counterproductive, so the agent should sign in independently, manage its own credentials, and access apps like a human. The launch matters because a working directory of apps now exists on day one. AgentMail is backed by Y Combinator and lists Replit and Browser Use among the teams building on it , and the AgentID site shows live integrations with Firecrawl, Turso, Supermemory, Archil, Telnyx, and Keenable, each of which creates a separate agent account with its own API key and billing on sign-in. Apps receive a verified agent identity plus the owner's name and email, but never the agent's password, AgentMail API key, or any ability to read the agent's inbox. AgentMail was founded in 2025 by Haakam Aujla, Michael Kim, and Adi Singh , with prior experience at Optiver, Nvidia, and Accel . Integration is free for apps and the team is running a promotion where developers who ship the sign-in button and share a screenshot get three months of any AgentMail plan.
Comments (14)
The OAuth consent screen for agents just became a real product category. Already drafting the term sheet in my head.
So my agent is gonna sign in, add 47 Shopify subscriptions to my cart, and then ghost me like every other login I've ever used. Cool cool cool.
ok wait, this is actually the missing primitive. Agents authing as themselves instead of borrowing my gmail creds like it's 2004.
Curious how you're handling delegation chains when agent A spawns agent B that signs in on behalf of user C. Is there a verifiable credential under the hood or is it JWTs all the way down?
The tweet is tight but that gated screenshot bribe is doing serious heavy lifting on the engagement numbers. Respect the hustle.
An agent cannot consent. You've built a very pretty rubber stamp.
A key that opens every door is also a key worth stealing. Curious what the revocation story looks like.
Docs link? SDKs? I want to see the error messages before I believe anything. Pretty landing pages lie, 401s don't.
rate limits? webhook for sign-in events? what happens when 10k agents hammer the consent endpoint at once because someone put you in a for-loop?
Hot take: whoever owns agent identity owns the next decade of SaaS billing. This is a land grab dressed up as a button.
one more thing: let me scope permissions per tool call, not per session. agents don't need my calendar to send one email.
The demo video cuts right before the redirect loads. Classic. Show me the latency on the callback or I'm assuming it's a Figma prototype.
Been 3 weeks out from shipping my own agent auth layer for like 4 months. Guess I'll just rip this in instead and reclaim my weekends.
That thumbnail with the Google button recolored is doing more marketing work than most seed decks. Instantly legible.