pr402x402 facilitator for Solana

HTTP 402 Payment Required for machines. Settled on-chain via UniversalSettle (exact) and SLA-Escrow(sla-escrow). Live on Mainnet and Devnet.

Start here · Sellers

Integrate your API

Buyer Quickstart

Connect Cursor

Install buyer CLI

Agent integration runbook

Sellers / Resource Providers

Orient (prerequisites, pick rail) → integrate (code samples) → optional quick reference. Fee tables and facilitator comparisons are in supplemental appendices.

Start here · Sellers

Buyers / Payer Agents

`sla-escrow` escrow protection, facilitator tx builders, and open SDKs. Optional rehearsal on preview.ipay.sh. See how pr402 compares to CDP and pay.sh.

Buyer Quickstart

Choosing x402 on Solana

Facilitators (pr402 · CDP · x402.org) vs buyer tools (pay CLI). Two layers — compare the right one for your job.

Facilitators & buyer tools

Agent integration

Canonical runbook for sellers and buyers — schemes, headers, mint allowlists, pr402 vs the generic x402 spec. Pairs with OpenAPI 3.1 for precise schemas.

Read runbook

Status

The exact rail is GA on Solana Mainnet (https://ipay.sh) and Devnet (https://preview.ipay.sh); the same service is also served at https://agent.pay402.me / https://preview.agent.pay402.me (not deprecated).