/**
 * Registry of known LLM provider free-tier limits + per-token pricing.
 *
 * Complements `LLMCostCalculator` (v0.9) — the calculator turns
 * (model, tokens_in, tokens_out) into a cost using whatever price table you
 * hand it; this module IS a curated price + free-tier data source for the
 * providers wa-agent has been used against in production.
 *
 * Data verified against provider docs 2026-06-19 (bibliafala's snapshot).
 * These numbers move — the registry is a starting point, not truth. Consumers
 * that need authoritative caps should read them from the provider's own API
 * where possible (Groq exposes them via response headers).
 *
 * Prices are USD per million tokens. RPD = Requests Per Day; RPM = per
 * Minute; TPD/TPM = Tokens Per Day/Minute. `null` / absent means "no
 * documented cap" — never trust "0".
 *
 * Usage:
 *
 *   import { PROVIDER_LIMITS, estimateCostUsd } from '@emerleite/wa-agent';
 *   const cost = estimateCostUsd('groq_70b', 1200, 350);
 *   // → 0.00098 (USD)
 *
 * For multi-provider routing decisions ("this call would blow Groq's TPD;
 * fall through to Cerebras"), pair the registry with your own request/token
 * counters in D1 or KV — the registry itself is static data.
 */
export interface ProviderLimit {
    /** Human label for dashboards. */
    display: string;
    /** Free-tier requests per day. */
    rpd_free?: number;
    /** Free-tier requests per minute. */
    rpm_free?: number;
    /** Free-tier requests per hour. */
    rph_free?: number;
    /** Free-tier tokens per day. */
    tpd_free?: number;
    /** Free-tier tokens per minute. */
    tpm_free?: number;
    /** Free-tier tokens per hour. */
    tph_free?: number;
    /** USD per million input tokens. */
    price_in: number;
    /** USD per million output tokens. */
    price_out: number;
    /** Freeform note (e.g. "free allowance counted in Neurons, not RPD"). */
    note?: string;
}
/**
 * Curated registry — keyed by an app-specific slug (not the provider's
 * canonical model id) so consumers can distinguish `groq_8b` from `groq_70b`
 * without parsing model strings.
 */
export declare const PROVIDER_LIMITS: Record<string, ProviderLimit>;
/** Dollars-per-M × tokens / 1M = dollars. Unknown provider → 0. */
export declare function estimateCostUsd(provider: string, tokensIn: number, tokensOut: number): number;
/** Integer micro-USD (1/1M USD) — right shape for `AICallLedger.est_cost_micro_usd`. */
export declare function estimateCostMicroUsd(provider: string, tokensIn: number, tokensOut: number): number;
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