Supported stacks

Stack	Package	Integration
Node.js + Express 4.21 or 5	`@forgeintel/sdk`	`createForge()` and `app.use(forge.middleware())` before x402 middleware.
Hono on Node, Bun, Deno, or Workers	`@forgeintel/sdk/hono`	Mount `forge.middleware()` before payment middleware.
Next.js App Router	`@forgeintel/sdk/next`	Wrap paid handlers with `forge.withForge()`.
Other fetch handlers	`@forgeintel/sdk/fetch`	Use `forge.wrap(handler)` or `forge.handle(request, next)`.
FastAPI, Starlette, or other ASGI	`forgeintel-sdk`	Place `ForgeMiddleware` outside payment handling, or use `forge.wrap(app)`.

Node requires 20.19+; Python requires 3.10+. Both SDKs require only FORGE_API_KEY; the Forge collector is built in. They observe existing x402 v1/v2 integrations; they do not supply a facilitator or settlement logic. Runnable examples for Express and FastAPI: tryforgeintel/forge-examples. Choose your stack above, or consult the Node package README for the framework-free core adapter.

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Supported stacks