Launch a coin

Its image, sound, website and description are inscribed inside the pump.fun create transaction.

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Leave empty and the coin links to its own page on Inscribe.

Re-encoded to fit the room left in the create transaction and served at /api/i/<mint>. Smaller sizes leave more room for sound and a site.

MP3 bytes ride in the create transaction next to the image and are served at /api/a/<mint>. Keep clips short and low bitrate.

A tiny page stored gzipped in the create transaction, served at /api/s/<mint> under a sandboxing CSP. It can read the coin's live stats from /api/t/<mint>.

SOL

Bought in the launch itself and sent to your wallet.

Launch tx size— / 4,096 B

Legacy limit was 1,232 B — this launch would have taken transactions.

CPI trace entries— / 64

Every top-level instruction and every CPI counts; 64 max per transaction.

Inscription budget— KB

Image, sound, site, description and website share the create transaction.