A
Provider Infra1P
Alchemy
Alchemy Agentic Gateway — access Alchemy's blockchain developer platform (Node JSON-RPC, Token API, Transfers API, Simulation API, NFT API v3, Portfolio API, Prices API) without an API key, using wallet-based auth (SIWE for EVM, SIWS for Solana) and per-request USDC payments via the x402 protocol.
Endpoints
9
Pricing
Variable
Networks
Base, Solana
BaseSolana
AI service endpoints
9endpoints
POST
https://x402.alchemy.com/{chainNetwork}/v2Node JSON-RPC — standard eth_* methods plus Alchemy Token API (alchemy_getTokenBalances, alchemy_getTokenMetadata, alchemy_getTokenAllowance), Transfers API (alchemy_getAssetTransfers), and Simulation API (alchemy_simulateAssetChanges, alchemy_simulateExecution). Replace {chainNetwork} with a supported chain slug (e.g. eth-mainnet, base-mainnet, solana-mainnet).
Variable
GET
https://x402.alchemy.com/{chainNetwork}/nft/v3/getNFTsForOwnerNFT API v3 — fetch all NFTs owned by a given address on the specified chain.
Variable
GET
https://x402.alchemy.com/{chainNetwork}/nft/v3/getNFTMetadataNFT API v3 — fetch metadata for a specific NFT (contract address + tokenId).
Variable
GET
https://x402.alchemy.com/{chainNetwork}/nft/v3/getContractMetadataNFT API v3 — fetch metadata for an NFT contract.
Variable
POST
https://x402.alchemy.com/data/v1/assets/tokens/by-addressPortfolio API — multi-chain token balances and metadata for one or more wallet addresses (not chain-specific).
Variable
POST
https://x402.alchemy.com/data/v1/assets/nfts/by-addressPortfolio API — multi-chain NFT holdings for one or more wallet addresses (not chain-specific).
Variable
GET
https://x402.alchemy.com/prices/v1/tokens/by-symbolPrices API — current token prices by symbol (e.g. ETH, BTC, USDC).
Variable
POST
https://x402.alchemy.com/prices/v1/tokens/by-addressPrices API — current token prices by contract address (multi-chain).
Variable
POST
https://x402.alchemy.com/prices/v1/tokens/historicalPrices API — historical token prices over a time range.
Variable