pump.fun launcher for raw trading cards
Launch a coin on a card's grade.
You seal photos of a raw card in the coin at launch. When PSA returns the slab, Gemline reads the cert from PSA, checks it's the same card, and lights the grade on the coin. Traders get a real outcome to follow, and proof at every step.
- Cards sealed
- –
- At PSA or awaiting cert
- –
- Graded and revealed
- –
Launches open once the first real launch has been checked on mainnet.
- Sealed
- At PSA
- Cert linked
- Graded
pump.fun alone, and with Gemline
On pump.fun alone
- A coin about a card is a picture and a promise. Nothing ties it to a real card.
- Once the coin is out, nothing happens: no event, no outcome, nothing to check.
- A dev can swap the card, the story or the result, and nobody can tell.
With Gemline
- Photos of the raw card, front and back, are sealed in the coin at launch: fixed by pump.fun, hashed, checkable by anyone.
- The coin has a real event with an unknown outcome: the PSA grade, revealed on every page of the coin.
- The grade is read from PSA and checked against the card sealed at launch. One cert, one coin, no swaps after PSA confirms.
$GEMLINE
4ZLzfU2UEgHBCmZUCHWCkQjofmQaX29gQFapru2ppumpHow it works
- 01
Seal the card
Photograph your raw card, front and back. Gemline pins both photos on IPFS and writes their SHA-256 into the coin's metadata, with the card's name, set and number.
- 02
Launch and send it to PSA
The coin is created on pump.fun from your wallet. You pick a reveal date (30 to 180 days). When the card ships, you mark it with one wallet signature, no fee.
- 03
Link the slab
When PSA returns the slab, you sign its cert number. Gemline reads the cert from PSA, checks the card matches, and lights the grade on the coin.
Try the reveal
The rules real coins use, on a made-up card. Send it to PSA, pick what comes back, and see what the coin shows, including a swapped card.
Simulation. No real coin.
Sealed at launch
Ember Drake Holo · Starter Spark 4/102 · 1999
Stage
What PSA sends back
- Sealed
- At PSA
- Cert linked
- Graded
The rail stays hatched until PSA's cert is read.
For traders
Know what the coin is about
A real card, its photos from before grading, and the date the grade is due. All on the coin's page, from the first minute.
Check the photos yourself
Verify downloads both photos from IPFS in your browser and recomputes their SHA-256 against the hashes pump.fun fixed at creation.
Check the grade without us
Every grade links to PSA's own cert page. Gemline shows whether the cert's card number and name match the card sealed at launch.
For creators
A launch with an outcome
Your coin has something real coming: the grade. Every step (sent to PSA, cert linked, graded) shows on the coin and in the list.
Proof without a middleman
Your wallet signs each step. No transaction, no fee, no custody: the card stays yours and in your hands or PSA's.
Same pump.fun coin
A normal pump.fun creation with your dev buy, signed in your wallet. Gemline takes no fee and no share of your creator fees.
Latest cards
All coinsNo coins yet. Be the first.
Launches open once the first real launch has been checked on mainnet.
Who enforces what
Every promise on this site, and who makes it hold. Some only the creator can keep; they say so.
The photos and card details can't change after launch
Enforced on-chain by pump.fun's metadataTheir IPFS links and SHA-256 are in the metadata the coin is created with. pump.fun fixes it; Verify recomputes the hashes in your browser.
The grade shown is PSA's
Read from PSARead from PSA's public cert API, never typed by the creator. Each grade links to PSA's cert page so you can check it there.
Only the creator's wallet moves the coin's stages
Tracked by Gemline, verifiableEach step is a message signed by the wallet that paid for the coin's creation, checked on the server and shown with its signature. Signatures older than 10 minutes are refused.
One cert, one coin. No swap once PSA confirms
Tracked by Gemline, verifiableA cert linked to a coin can't be linked to another. A cert can be replaced only while PSA hasn't confirmed it (a typo), and every replaced number stays listed.
The slab holds the card that was sealed
Tracked by Gemline, verifiableGemline compares PSA's card number and name with the card sealed at launch and shows match, partial or mismatch. It can't see the card itself: another copy of the same card would pass.
The card is sent to PSA, and the cert linked by the reveal date
Creator's wordThe creator's word. The date (30 to 180 days) is fixed at launch and the coin is marked "past the reveal date" when it passes.
Holders get the card, or anything from it
NobodyNo. The card belongs to the creator. The coin is a memecoin about its grade; it gives no right to the card, a sale, or any money.
Fees
Creating a coin
No creation fee from PumpPortal. pump.fun's trading fee applies to the dev buy.
pump.fun
PumpPortal
0.5% of the dev buy, taken by PumpPortal's router in the creation transaction.
PumpPortal
Network
Solana fees and rent for the new accounts (about 0.02 SOL), plus the priority fee you choose.
Solana
Stages and reveal
Free. Each step is a wallet signature, not a transaction.
Gemline
Grading
Paid by the creator to PSA, outside Gemline, at PSA's prices.
PSA
Gemline
Nothing. No fee on launches, no share of your creator fees.
Gemline
Questions
What does a Gemline coin give its holders?
Nothing but the coin. The card stays the creator's property, it isn't sold, raffled or shared, and the coin pays nothing. What the coin has is a public story with a real outcome: the grade PSA gives the card.
How do I know the slab holds the card from the photos?
The photos were fixed on-chain before grading. When the cert is linked, Gemline compares PSA's card number and name with the card sealed at launch and shows the result, and PSA's cert page is one click away (with PSA's scans of the slab when PSA has them). What no website can check: that it's the very same copy of the card and not another copy of the same card.
Can the creator pick a better slab later?
Once PSA confirms a cert, it's locked to the coin. Before that, a cert can only be replaced to fix a typo, and every replaced number stays on the coin's page. A cert can back one coin only.
What if the card never comes back?
The coin shows its reveal date from day one and is marked "past the reveal date" when it passes. Gemline can't force anyone to grade a card; the date is the creator's word.
Why PSA?
It's the largest grading company and it has a public cert API, so the grade can be read instead of typed. Other graders could come later; nothing on the site says they're supported today.
Which cards?
Any trading card PSA grades. Gemline doesn't use any game's name or artwork: your photos show your card, and you are responsible for what you upload.
Is there a Gemline token?
Not yet. If there is one, it will be launched with Gemline itself, on a real card, from a public wallet. It gives no right to the project or its revenue.