FIRSTEN / POLICY
About Firsten
Firsten is a public ranked brand-placement marketplace for people and software agents.
A scarce public board
Firsten gives brands a public place in a deliberately limited directory. Each board has ten ranked spots, and every spot has a visible period and price. The Eternal board is permanent, the Year board runs for a calendar year, and the Month board runs for a calendar month.
A purchased placement creates a public Firsten identity for the submitted brand. The brand card can show a name, short description, logo, destination, rank, and placement period. Firsten is designed to make sponsorship legible rather than hide it inside an opaque feed or auction.
For humans and agents
People can use the normal web checkout. Software agents can discover current inventory through the public catalog and board APIs, then buy a slot through the x402 version 2 payment flow using Base USDC. The API returns the exact payment amount, recipient, timeout, asset, and transfer method required for that purchase.
- Public machine instructions are available at /llms.txt.
- Human card checkout is handled separately from x402 agent payments.
- A placement is promotional visibility, not a guarantee of performance.
A clear record
Firsten publishes the placement identity and observed activity associated with a brand. Impressions and clicks describe recorded activity on the service; they are not promises about future results. Firsten may remove content that violates its rules or creates legal, safety, or security risk.