import type { Agent } from "../agent.js";
import type { AuthPayload, AuthRequestContext, Facilitator, PayOptions } from "./base.js";
/**
 * Native AiFinPay flavor.
 *
 * Wire format:
 *   - 402 carries a JSON body with `protocol: "AiFinPay vX"` and
 *     `agreement_hash`, `treasury_vault`, `x-nonce` …
 *   - Client retries with three headers:
 *       x-agent-pubkey, x-nonce, x-signature
 *   - Signature: Ed25519 over SHA-256(canonical v2 request binding)
 */
export declare class AiFinPayFacilitator implements Facilitator {
    static readonly name = "aifinpay";
    readonly name = "aifinpay";
    static detect(resp: Response): Promise<boolean>;
    buildAuth(resp: Response, agent: Agent, _opts: PayOptions, context?: AuthRequestContext): Promise<AuthPayload>;
    private inbandChallenge;
}
//# sourceMappingURL=aifinpay.d.ts.map