The Autograph Marketplace

Their signature.
Your story.

Ship your item to your favorite creator. Get it back signed and authenticated. No conventions. No lines.

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How It Works

01
Ship your item
Pick a creator and tier. We generate a prepaid label — you pack your item and drop it off. Creator's address is never exposed.
02
It gets signed
Your item routes through our fulfillment center to the creator. They sign it on camera so you can see the moment it happened.
03
Receive it authenticated
Your item ships back with a CoSign QR tag. Scan it anytime to verify provenance — permanent and tamper-evident.

Signing Tiers

Prices are set by each creator. Every tier includes a signing video and CoSign authentication tag.

Tier 1
Standard
Creator's base rate
  • —Signature only
  • —CoSign authentication tag
  • —Signing video proof
Tier 2
Personal
Base rate + personalization fee
  • —Signed with your name
  • —CoSign authentication tag
  • —Signing video proof
Tier 3
Dedicated
Base rate + dedication fee
  • —Custom message of your choosing
  • —Their signature
  • —CoSign authentication tag
  • —Signing video proof

For Creators

Monetize your
signature.

Open a mailbox in minutes. Set your own prices and turnaround window. Your address stays private — every item routes through our fulfillment center before it ever reaches you.

You keep 75% of every signing fee. CoSign handles the labels, authentication, and fan communication.

Apply Now
75%
Your take
Never
Address visible to fans
You set it
Turnaround window
Every item
Authentication

Get cosigned.

The only platform where your item goes directly to the creator and comes back signed, authenticated, and yours forever.

Browse Creators