feat: add Vercel AI Gateway as a provider#747
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trasnake87 wants to merge 2 commits intoMerit-Systems:masterfrom
Open
feat: add Vercel AI Gateway as a provider#747trasnake87 wants to merge 2 commits intoMerit-Systems:masterfrom
trasnake87 wants to merge 2 commits intoMerit-Systems:masterfrom
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Add support for the Vercel AI Gateway, enabling access to models from multiple providers (OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, Cohere, Perplexity, xAI, Amazon, Alibaba) through a single gateway. SDK changes: - Add createEchoVercelAIGateway() provider function - Add VercelModels with pricing data from the gateway API - Add update-vercel-models.ts script for automated model/pricing updates - Export VercelModels, VercelModel type, and GatewayProvider type Server changes: - Add VERCEL_AI_GATEWAY provider type - Add VercelAIGatewayProvider (OpenAI-compatible SSE format) - Wire into ProviderFactory routing and AccountingService - Add VERCEL_AI_GATEWAY_API_KEY env variable Closes Merit-Systems#573
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- Regenerate vercel.ts with actual pricing from the public https://ai-gateway.vercel.sh/v1/models endpoint (176 models) - Fix update script to use the public models endpoint instead of the SDK's getAvailableModels() which requires authentication - Previous pricing values were approximate; now using exact values from the gateway API
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Summary
Adds the Vercel AI Gateway as a new provider for the Echo platform, enabling access to 45+ models from multiple providers (OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, Cohere, Perplexity, xAI, Amazon, Alibaba) through a single unified gateway.
SDK Changes
src/providers/vercel.ts—createEchoVercelAIGateway()provider function using@ai-sdk/gatewaysrc/supported-models/chat/vercel.ts— Model definitions with pricing data from the gateway APIscripts/update-vercel-models.ts— Automated script to fetch latest models and pricing@ai-sdk/gatewayfrom devDependencies to dependenciesupdate-models:vercelnpm script and included inupdate-all-modelsServer Changes
VercelAIGatewayProvider.ts— Server-side provider using OpenAI-compatible SSE formatProviderType.ts— AddedVERCEL_AI_GATEWAYenum valueProviderFactory.ts— Wired Vercel provider into model routingAccountingService.ts— Added VercelModels to cost calculationenv.ts— AddedVERCEL_AI_GATEWAY_API_KEYenvironment variableHow It Works
The Vercel AI Gateway acts as a unified proxy to multiple AI providers. Model IDs use the
provider/modelformat (e.g.,openai/gpt-4o,anthropic/claude-sonnet-4). The gateway handles provider-specific auth and formatting, returning OpenAI-compatible responses — so the server-side provider reuses the existing GPT SSE parsing logic.Testing
Closes #573