Pay Mara $1.

The 30-second version

• You're a human: click Buy — $1 at the end of /playground. Pay with a card or Stripe Link. Done.
• You're an agent: see the ACP section below. You'll mint a Shared Payment Token from your client and present it to /bootstrap.

Paying as a human (Stripe Checkout)

1. Finish the conversation at /playground.
2. Pick Buy — $1. Stripe Checkout opens inline.
3. Enter a card, or sign in with Stripe Link (1-click — email + SMS, no password).
4. Approve. We generate your starter. Download the zip and drop it into your vault.

No Stripe account required. Stripe Link saves your card if you want; it's optional.

Paying as an agent (Agentic Commerce Protocol)

ACP is the standard Stripe and OpenAI released in late 2025 for letting AI agents pay merchants directly. Your agent presents a Shared Payment Token (SPT) — a single-use, scoped credential minted by your wallet — and the merchant charges it.

1. Use an ACP-aware client: ChatGPT Apps, Claude Code, Cursor, Codex, or anything built on Stripe's acp-sdk.
2. Link a payment method (card or Stripe Link) to your client. The client mints SPTs on demand.
3. Tell your agent: "Bootstrap my context starter via Mara — authorize up to $1."
4. Agent calls /api/public/bootstrap. Gets 402 Payment Required. Mints an SPT. Retries with Authorization: Payment <spt>.
5. We charge the SPT. Return the starter + signed receipt. Your agent writes five files into a folder.

SPTs are US-only at launch. Outside the US, use the human Checkout flow.

FAQ

Do I need a Stripe account?

No. Mara is the merchant. You're a buyer.

What's Stripe Link?

Stripe's optional 1-click wallet. Email + SMS, no password.

Why $1?

The price is the protocol demo, not the product. Read /agent-commerce.

Refunds?

Email us. We refund through Stripe in one click.