Prove human presence
in the AI era

AI can write, post, code, and chat like anyone. Biolink lets you add a verifiable human signoff to content, commits, and messages — created with a biometric tap, shared as a link anyone can verify.

Get Early Access

How It Works

Sign what you create
1

One tap with Touch ID — takes under a second

Human verified
Verified · signoff.bio/v/a3f9c2
2

A verification link attaches to your post — anyone can tap to confirm you're human

Post with verified human badge

What others see when they tap the link

✓

Human Verified

Signed content
As AI systems become more autonomous, the question of who bears responsibility for their actions grows increasingly urgent...
Verification details
Signed by @louiswatson
Method Touch ID
Time May 7, 2026 · 2:41 PM
No biometric data stored
Respond to a request
1

Someone sends you a verification request in chat

WhatsApp verification request
2

Tap Touch ID to respond

Human verified
Verified · signoff.bio/v/b7d2e1
3

They see your verified identity — timestamp, name, and a link to confirm

WhatsApp verification result

What the requester sees when they tap the link

✓

Human Verified

Verification details
Verified @louiswatson
Method Touch ID
Time May 7, 2026 · 2:43 PM
Requested by @sarah
No biometric data stored

Use Cases

AI Agents & Autonomous Workflows
When AI agents take real-world actions — sending emails, moving money, deploying code — Biolink adds a human checkpoint. The agent pauses, the right person approves with a biometric tap, and the action proceeds with a verifiable record of who signed off.
Sales & Customer-Facing Teams
Verify quotes, refunds, discounts, and customer commitments. A signoff link proves the message came from a real authorized representative — protection against social engineering, AI voice clones, and impersonation in customer-facing channels.
Marketers & Brand Teams
Add verifiable signoff to campaigns, ads, announcements, and social posts. As AI tools take over content production, Biolink proves a real brand owner authorized what went live — supporting compliance, brand safety, and a clean audit trail when something goes wrong.
Creators, Writers & Job Seekers
Stand out from AI-generated content. Sign essays, newsletters, applications, portfolios, or proposals with biometric-backed proof of human presence, so readers and reviewers can verify in one tap that a real person is behind the work.
Dating & Social
Verify the person behind a profile or message. Send a request, get a biometric signoff back, and know there is a real human on the other side — not a bot, not a catfish.
Developers & Engineering Teams
Sign commits, PRs, and production releases with biometric-backed human approval. As AI agents generate more code, Biolink proves a real person reviewed and approved what shipped — supporting human-in-the-loop change management controls such as SOC 2 CC8.1.

Early Access

Get early access to Biolink.

Limited spots. Be the first to try Biolink.