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feat: add LiteLLM as AI gateway provider

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RheagalFire committed 2026-07-06 21:46:48 +05:30
1 parent 2f20ee5820
commit 26217cbe33
5 files changed
+192 -11
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src/config/index.ts
+63 -9
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@@ -23,6 +23,7 @@ export interface TempestSettings {
anthropic?: string;
openai?: string;
xai?: string;
litellm?: string;
};
// Default LLM settings
@@ -61,6 +62,12 @@ export interface TempestSettings {
defaultModel: string;
};
// LiteLLM AI gateway proxy — routes to 100+ LLM providers via unified API
litellm: {
baseUrl: string;
defaultModel: string;
};
// Codex CLI/account subscription backend
codex: {
command: string;
@@ -124,6 +131,11 @@ const DEFAULT_SETTINGS: TempestSettings = {
defaultModel: 'grok-build-0.1',
},
litellm: {
baseUrl: 'http://localhost:4000/v1',
defaultModel: 'gpt-4o',
},
codex: {
command: 'codex',
defaultModel: 'codex-default',
@@ -381,6 +393,16 @@ export const AVAILABLE_MODELS: Record<LLMProvider, ModelInfo[]> = {
capabilities: ['reasoning', 'code', 'analysis', 'vision', 'fast'],
},
],
litellm: [
{
id: 'gpt-4o',
name: 'Any model via LiteLLM proxy (default: gpt-4o)',
provider: 'LiteLLM',
contextWindow: 128000,
maxOutput: 4096,
capabilities: ['reasoning', 'code', 'analysis', 'vision', 'tools'],
},
],
codex: [
{
id: 'codex-default',
@@ -547,7 +569,7 @@ class ConfigManager {
/**
* Set an API key for a provider
*/
setApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai', key: string): void {
setApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm', key: string): void {
const apiKeys = this.config.get('apiKeys');
apiKeys[provider] = key;
this.config.set('apiKeys', apiKeys);
@@ -556,7 +578,7 @@ class ConfigManager {
/**
* Get an API key for a provider
*/
getApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai'): string | undefined {
getApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm'): string | undefined {
// First check environment variables (highest priority)
const envVarMap = {
openrouter: 'OPENROUTER_API_KEY',
@@ -564,6 +586,7 @@ class ConfigManager {
anthropic: 'ANTHROPIC_API_KEY',
openai: 'OPENAI_API_KEY',
xai: 'XAI_API_KEY',
litellm: 'LITELLM_API_KEY',
};
// Force a fully UNCONFIGURED server (no key from env OR the saved store) — used by
@@ -582,7 +605,7 @@ class ConfigManager {
/**
* Check if a provider has a valid API key configured
*/
hasApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai'): boolean {
hasApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm'): boolean {
const key = this.getApiKey(provider);
return !!key && key.length > 10;
}
@@ -590,12 +613,22 @@ class ConfigManager {
/**
* Remove an API key
*/
removeApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai'): void {
removeApiKey(provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm'): void {
const apiKeys = this.config.get('apiKeys');
delete apiKeys[provider];
this.config.set('apiKeys', apiKeys);
}
/**
* Check if a LiteLLM proxy is configured (base URL set via env or config)
*/
hasLiteLLMProxy(): boolean {
const envUrl = process.env.LITELLM_BASE_URL?.trim();
if (envUrl) return true;
const storedUrl = this.config.get('litellm')?.baseUrl;
return !!storedUrl && storedUrl !== 'http://localhost:4000/v1';
}
/**
* Get configured providers (those with API keys)
*/
@@ -607,6 +640,7 @@ class ConfigManager {
if (this.hasApiKey('anthropic')) providers.push('anthropic');
if (this.hasApiKey('openai')) providers.push('openai');
if (this.hasApiKey('xai')) providers.push('xai');
if (this.hasLiteLLMProxy()) providers.push('litellm');
// Codex uses the local Codex CLI/account auth instead of API-key storage.
providers.push('codex');
@@ -654,6 +688,11 @@ class ConfigManager {
baseUrl = this.config.get('xai').baseUrl;
actualModel = model || this.config.get('xai').defaultModel;
break;
case 'litellm':
apiKey = this.getApiKey('litellm');
baseUrl = process.env.LITELLM_BASE_URL?.trim() || this.config.get('litellm').baseUrl;
actualModel = model || process.env.LITELLM_MODEL?.trim() || this.config.get('litellm').defaultModel;
break;
case 'codex':
actualModel = model || this.config.get('codex').defaultModel;
break;
@@ -699,8 +738,9 @@ class ConfigManager {
const flag = (process.env.TEMPEST_MODEL_FALLBACK || '').trim().toLowerCase();
if (!flag || ['0', 'false', 'off', 'no'].includes(flag)) return [];
const chain: FallbackEntry[] = [];
const add = (p: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai') => {
if (p === primary || !this.hasApiKey(p)) return;
const add = (p: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm') => {
if (p === primary) return;
if (p === 'litellm' ? !this.hasLiteLLMProxy() : !this.hasApiKey(p)) return;
chain.push({
provider: p,
model: this.config.get(p).defaultModel,
@@ -710,6 +750,7 @@ class ConfigManager {
};
add('openrouter');
add('venice');
add('litellm');
add('anthropic');
add('openai');
add('xai');
@@ -736,6 +777,9 @@ class ConfigManager {
case 'openai':
this.config.set('defaultModel', this.config.get('openai').defaultModel);
break;
case 'litellm':
this.config.set('defaultModel', this.config.get('litellm').defaultModel);
break;
case 'codex':
this.config.set('defaultModel', this.config.get('codex').defaultModel);
break;
@@ -759,6 +803,9 @@ class ConfigManager {
case 'openai':
this.config.set('openai', { ...this.config.get('openai'), defaultModel: model });
break;
case 'litellm':
this.config.set('litellm', { ...this.config.get('litellm'), defaultModel: model });
break;
case 'codex':
this.config.set('codex', { ...this.config.get('codex'), defaultModel: model });
break;
@@ -797,6 +844,7 @@ class ConfigManager {
anthropic: settings.apiKeys.anthropic ? '***REDACTED***' : undefined,
openai: settings.apiKeys.openai ? '***REDACTED***' : undefined,
xai: settings.apiKeys.xai ? '***REDACTED***' : undefined,
litellm: settings.apiKeys.litellm ? '***REDACTED***' : undefined,
},
};
writeFileSync(filePath, JSON.stringify(safeSettings, null, 2));
@@ -829,6 +877,12 @@ OPENAI_API_KEY=
# xAI API Key
# Get your key at: https://console.x.ai/
XAI_API_KEY=
# LiteLLM Proxy (AI gateway — 100+ providers via single API)
# Docs: https://docs.litellm.ai/docs/proxy/quick_start
LITELLM_BASE_URL=http://localhost:4000/v1
LITELLM_API_KEY=
LITELLM_MODEL=gpt-4o
`;
writeFileSync(filePath, template);
}
@@ -841,8 +895,8 @@ XAI_API_KEY=
export const config = new ConfigManager();
// Helper functions for quick access
export const getApiKey = (provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai') => config.getApiKey(provider);
export const setApiKey = (provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai', key: string) => config.setApiKey(provider, key);
export const hasApiKey = (provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai') => config.hasApiKey(provider);
export const getApiKey = (provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm') => config.getApiKey(provider);
export const setApiKey = (provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm', key: string) => config.setApiKey(provider, key);
export const hasApiKey = (provider: 'openrouter' | 'venice' | 'anthropic' | 'openai' | 'xai' | 'litellm') => config.hasApiKey(provider);
export const getLLMConfig = (provider?: LLMProvider, model?: string) => config.getLLMConfig(provider, model);
export const getConfiguredProviders = () => config.getConfiguredProviders();