earendil-works/pi · error · Error

No API key for provider: ${provider}

Error message

No API key for provider: ${provider}

What it means

Error "No API key for provider: ${provider}" thrown in earendil-works/pi.

Source

Thrown at packages/ai/src/api/openai-responses.ts:47

import { buildBaseOptions } from "./simple-options.ts";

const OPENAI_TOOL_CALL_PROVIDERS = new Set(["openai", "openai-codex", "opencode"]);
// OpenAI Responses rejects max_output_tokens below 16: https://github.com/earendil-works/pi/issues/6265
const OPENAI_RESPONSES_MIN_OUTPUT_TOKENS = 16;

function hasHeader(headers: ProviderHeaders | undefined, name: string): boolean {
	if (!headers) return false;
	const expected = name.toLowerCase();
	for (const [key, value] of Object.entries(headers)) {
		if (key.toLowerCase() === expected && value !== null && value.trim().length > 0) return true;
	}
	return false;
}

function getClientApiKey(provider: string, apiKey: string | undefined, headers: ProviderHeaders | undefined): string {
	if (apiKey) return apiKey;
	if (hasHeader(headers, "authorization") || hasHeader(headers, "cf-aig-authorization")) return "unused";
	throw new Error(`No API key for provider: ${provider}`);
}

function detectSessionAffinityFormat(model: Pick<Model<"openai-responses">, "provider" | "baseUrl">) {
	return model.provider === "openrouter" || model.baseUrl.includes("openrouter.ai") ? "openrouter" : "openai";
}

/**
 * Resolve cache retention preference.
 * Defaults to "short" and uses PI_CACHE_RETENTION for backward compatibility.
 */
function resolveCacheRetention(cacheRetention?: CacheRetention, env?: ProviderEnv): CacheRetention {
	if (cacheRetention) {
		return cacheRetention;
	}
	if (getProviderEnvValue("PI_CACHE_RETENTION", env) === "long") {
		return "long";
	}
	return "short";

View on GitHub (pinned to 4af9d21d3b)

Solutions

1. Set OPENAI_API_KEY or pass an API key for the provider.

When it happens

Trigger: Thrown at packages/ai/src/api/openai-responses.ts:47 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of earendil-works/pi@4af9d21d3b (2026-08-24). Data as JSON: /api/errors/d0fb54c14538e2d5. Report an issue: GitHub.