KEYVAULT-AI API MARKETPLACE

OpenRouter API proxy with pay-per-call USDC payments on Tempo Moderato. Proxies model listings and chat completions to OpenRouter, requiring a verified TransferWithMemo payment ($0.1 USDC) before processing completions. Returns signed attestations for completions and credits.

Deployed on Eigen Cloud TEE (Trusted Execution Environment) – runs inside a hardware-backed enclave so clients can verify inference integrity, attest to the actual models used, and trust that responses come from the attested code and configuration.

Live Deployment

• Base URL: https://vai.buildweekends.com/gm
• Eigen Verifier: https://verify-sepolia.eigencloud.xyz/app/0x4Da7920D83cc20a0De6a46C746256e893b772b50

Environment Variables

Create a .env file with:

Variable	Required	Description
OPENROUTER_API_KEY	Yes	OpenRouter API key for proxying requests
PROVIDER_WALLET_ADDRESS	Yes	Wallet address that receives USDC payments
USDC_TOKEN	Yes	USDC token contract address on Tempo Moderato
MNEMONIC	Yes*	Mnemonic for signing attestations (gm, completions, credits). When deployed to Eigen Cloud, this is automatically set by EigenCompute KMS — derived deterministically from the app ID. For local dev, set manually in .env.
PORT	No	Server port (default: 3000)

API Endpoints

Method	Path	Description
GET	/health	Health check
GET	/details	Provider wallet, price per call ($0.1), USDC address
GET	/v1/models, /models	List models (proxied to OpenRouter)
POST	/v1/chat/completions, /chat/completions	Chat completions (requires payment)
GET	/gm	Returns signed "gm" + timestamp (verifiable via /verify)
POST	/verify	Validate EIP-191 signed message
GET	/credits	OpenRouter credits with signed attestation

Chat Completions (paid)

Request body must include:

• paymentTx – Transaction hash of USDC TransferWithMemo to provider wallet
• requestId – Unique ID; memo must be keccak256(api:{requestId})
• Standard OpenRouter completion params (model, messages, etc.)

Payment must be ≥ 0.1 USDC to the provider wallet with the correct memo.

Development

Setup & Local Testing

npm install
# Create .env with the variables above
npm run dev

Docker Testing

docker build -t tee-proxy .
docker run --rm --env-file .env -p 3000:3000 tee-proxy

Prerequisites

• ecloud CLI – Install with npm install -g @layr-labs/ecloud-cli
• Docker – To package and publish your application image
• ETH – To pay for deployment transactions

Deployment

Deploy to Eigen Cloud’s TEE for hardware-verified execution using the ecloud CLI:

ecloud compute app deploy username/image-name

The CLI will automatically detect the Dockerfile and build your app before deploying to the Trusted Execution Environment. MNEMONIC is injected by EigenCompute KMS — each app gets a deterministic mnemonic derived from its application ID, so you don't need to provide it when deploying.