Documentation Index
Fetch the complete documentation index at: https://developers.fd.xyz/llms.txt
Use this file to discover all available pages before exploring further.
March 2026
UCP Support
- UCP integration live with payment handler
xyz.fd.prism_payment - Merchant endpoints for payment profile discovery and checkout preparation
- Gateway endpoints serving public UCP handler schema and spec
February 17, 2026
Documentation Launch
- Full Prism documentation published in the Developer Hub
- How It Works — Two-layer architecture (Prism orchestration + Spectrum settlement)
- Commerce Protocols — x402 and UCP live, ACP coming soon
x402 Protocol
- x402 Documentation — Complete protocol flow, payment requirements, pricing models
- HTTP 402 machine-to-machine stablecoin payments live on all supported chains
SDK Integration
- Server-side SDK guides for TypeScript (Express, NestJS, Next.js, Fastify), Python (FastAPI, Flask, Django), and Java (Spring Boot)
@1stdigital/prism-expresspackage documented with middleware configuration
API Reference
- Prism Gateway API documented at
prism-gw.fd.xyz - Endpoints — x402 settlement, merchant checkout, and gateway reference
Production
- Prism Console guide for merchant dashboard at
apps.fd.xyz/prism/ - Network Support — Ethereum, Base, BSC, Arbitrum