import { type Hex } from "viem";
/** Recursively coerce JS numbers to strings so canonical JSON matches Python
 * (1.0→"1" vs "1.0", exponents, precision diverge between JSON.stringify and
 * json.dumps). The spec mandates string-valued params; bools/null are identical
 * in both encoders and pass through. */
export declare function stringifyNumbers(value: unknown): unknown;
/** JCS-subset canonical JSON (see file header for the parity caveat). */
export declare function canonicalJson(value: unknown): string;
export declare function computeTemplateHash(params: Record<string, unknown>): Hex;
export interface PayLinkLit {
    to: string;
    amount: string;
    currency: string;
    network: string;
    kind: string;
}
export interface SignedPayLink {
    signed_params: string;
    nonce: string;
    created_at: number;
}
/**
 * Sign a pay-link template with the local agent key. The recovered signer must
 * equal the SIWE session wallet (created_by), else the platform rejects the
 * create with 403 — the MCP signs with config.privateKey, so the session must
 * belong to that same wallet.
 */
export declare function signPayLink(privateKey: string, params: Record<string, unknown>, lit: PayLinkLit): Promise<SignedPayLink>;
//# sourceMappingURL=pay-link-signer.d.ts.map