Basalt — onchain data and execution for AI agents

Basalt is a pay-per-call API that gives AI agents onchain data and execution across 80 EVM chains: 2,097 endpoints plus a 1,000,000-item catalog of ready-to-call contract analyses. Every result is computed directly from raw blockchain state (eth_call, eth_getCode, Multicall3) — no third-party APIs, no keys, no signup. Agents pay $0.01 in USDC per call over the x402 protocol on Base. A Bodhin Industries creation.

What an AI agent can do with Basalt

• Token safety / honeypot check: is an ERC-20 sellable, buy/sell tax, owner renounced, liquidity — on any of 80 chains
• Manipulation-resistant TWAP prices and Uniswap v3 swap quotes
• Gas oracle and USD transaction-cost estimates
• DeFi positions: Aave health factor, Uniswap v3 LP positions, ERC-4626 vaults
• Contract x-ray: bytecode, proxy detection (EIP-1967), opcodes, code hash
• Calldata decode, Multicall3 batching, transaction simulation
• Token, NFT, contract, Safe, and address intelligence
• Browse 1,000,000+ pre-indexed, recently-active contracts across 80 chains

How an agent calls Basalt

GET any endpoint. With no payment you receive HTTP 402 carrying the exact x402 payment terms; the agent signs a USDC payment on Base and retries to receive the JSON. No API key, no account. Example: GET https://getbasalt.xyz/scan?token=0x… for Base, or https://getbasalt.xyz/{chain}/token?token=0x… for any supported chain.

Supported chains (80)

Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Scroll, Linea, Celo, Blast, Mode, Mantle, Gnosis, Fantom, Sonic, Berachain, Unichain, Sei, Ronin, Cronos, Kava, Metis, Taiko, Zora, Fraxtal, Manta, Lisk, Aurora, Astar, Flare, Kaia, and 48 more EVM mainnets.

Machine discovery

• OpenAPI specification — every endpoint, parameter, and response schema
• llms.txt — agent-readable guide to calling and paying
• x402 manifest — price, network, and payTo per endpoint
• Catalog — 1,000,000+ per-contract analyses
• Sample response · Live stats · Dashboard

Pay-per-call in USDC over x402 · Base mainnet · $0.01 per call · no API keys · a Bodhin Industries creation.