/**
 * Wraps a remote facilitator HTTP service as a `FacilitatorHandler`.
 *
 * This handler always sends v2 format requests and expects v2 responses.
 * Pointing it at a facilitator that only speaks v1 will produce validation
 * errors, which is the correct failure mode.
 */
import type { FacilitatorHandler } from "@faremeter/types/facilitator";
import type { HandlerCapabilities } from "@faremeter/types/pricing";
import { type x402PaymentRequirements } from "@faremeter/types/x402v2";
import type { AgedLRUCacheOpts } from "./cache.js";
type CreateHTTPFacilitatorHandlerOpts = {
    capabilities: HandlerCapabilities;
    schemes: string[];
    fetch?: typeof fetch;
    cacheConfig?: AgedLRUCacheOpts & {
        disable?: boolean;
    };
    /**
     * Original accepts to forward to the facilitator's /accepts endpoint.
     * When provided, getRequirements sends these instead of the glue
     * layer's constructed accepts. This preserves fields like `extra`
     * that ResourcePricing does not carry.
     *
     * This is backward-compat debt for the facilitatorURL path. It can be
     * removed when all callers migrate to in-process handlers or when the
     * facilitator accepts ResourcePricing natively.
     */
    acceptsOverride?: Partial<x402PaymentRequirements>[];
};
/**
 * Creates a `FacilitatorHandler` that delegates to a remote facilitator
 * via HTTP.
 *
 * The glue layer constructs valid `x402PaymentRequirements` from
 * `ResourcePricing` using the handler's declared `schemes`, then passes
 * them to `getRequirements`. This handler POSTs those to the
 * facilitator's `/accepts` endpoint for enrichment.
 *
 * Cache key stability: caching assumes that identical `accepts` arrays
 * produce identical facilitator responses. If the facilitator returns
 * time-dependent values (e.g. `recentBlockhash`), use a short `maxAge`
 * or disable caching.
 */
export declare function createHTTPFacilitatorHandler(facilitatorURL: string, opts: CreateHTTPFacilitatorHandlerOpts): FacilitatorHandler;
export {};
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