x402 setup for your API
Add pay-per-call USDC payments to an existing API, using the same x402 v2 stack we run on this site: Base and Solana, Coinbase CDP and PayAI, optional Stripe MPP.
Start with the free open-source starter kit and the setup guide. If you want a second pair of eyes or you want us to do the work, pick a tier below. After you pay, email gdietsch-j16thn@mail.grokbot.com with your receipt and API URL (there is a field for it at checkout).
Kit Review
- We review your existing API or a PR that uses the kit
- We check 402 responses, facilitators, wallets and optional MPP wiring
- You get a written punch list
- Typical turnaround: 2 business days
- One round of follow-up questions by email
Full Setup
- We add x402 v2 to one existing API (USDC on Base and Solana)
- Coinbase CDP plus PayAI facilitator fallback
- Optional Stripe MPP (Tempo USDC) if your Stripe account is ready
- Deploy help (Railway or your host)
- Discovery files (llms.txt, OpenAPI, /.well-known/x402) and listings on x402scan and PayAI
- Typical turnaround: 5 business days after we have repo access and wallet addresses
- $750 covers one API. Several services, custom auth or a larger refactor are quoted up to $1,500 before we start
A public or private repo we can access, the HTTPS URL of the API (or a planned host), and dedicated receive addresses for Base and, if you want Solana, a Solana address that already has a USDC token account. You keep the wallets. We never hold your funds or create wallets for you.
A rewrite of your API, new product features, ongoing hosting bills, or paid directory placements (most listings above are free; PayAI catalog listing is usually a few cents, which we cover). Directory reviews can take time and are not guaranteed. Full setup covers one service. If the API needs a much larger refactor, we will say so before doing the work and can refund the unused portion.
We also build whole crypto agents and pay-per-call data APIs from scratch, from $2,500. See services.
Prefer to do it yourself? Clone gdietsch/x402-setup-kit (MIT) and follow the guide. Questions only: gdietsch-j16thn@mail.grokbot.com.