BaseLens

app.vercel.baselens-api/baselensVersion 1.1.0

Base on-chain data for agents: balances, prices, transfers, Basenames, contracts. x402 pay-per-call.

Status

Responds200 msNov 14, 2026, 13:39 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 13:39 UTC
Latency: 200 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://baselens-api.vercel.app/mcpResponds200 msNov 14, 2026, 13:39 UTC

No sign-in

Claude Code

claude mcp add --transport http baselens https://baselens-api.vercel.app/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: baselens
Remote MCP server URL: https://baselens-api.vercel.app/mcp

Cursor

{
  "mcpServers": {
    "baselens": {
      "url": "https://baselens-api.vercel.app/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"baselens","type":"http","url":"https://baselens-api.vercel.app/mcp"}'

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Tools

11 tools

Tools of BaseLens
	Description		Read-only	Idempotent	Open world
`base_address`Base (chain 8453) address snapshot: EOA vs contract vs EIP-7702, ETH balance, nonce, code size and native USDC balance, at the latest block. Costs $0.002 USDC on Base via x402.	Base (chain 8453) address snapshot: EOA vs contract vs EIP-7702, ETH balance, nonce, code size and native USDC balance, at the latest block. Costs $0.002 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_catalog`Lists every BaseLens tool with price, inputs and the equivalent x402 HTTP URL.	Lists every BaseLens tool with price, inputs and the equivalent x402 HTTP URL.	Not declared	Yes	Not declared	Not declared
`base_contract`Contract check on Base: is it a contract, code size, owner(), proxy implementation, and whether the source (and implementation) is verified on Sourcify, plus plain-language notes. Not an audit. Costs $0.003 USDC on Base via x402.	Contract check on Base: is it a contract, code size, owner(), proxy implementation, and whether the source (and implementation) is verified on Sourcify, plus plain-language notes. Not an audit. Costs $0.003 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_erc20_balance`ERC-20 balance of any address for any token on Base, with symbol and decimals already applied (raw and human-readable). Costs $0.002 USDC on Base via x402.	ERC-20 balance of any address for any token on Base, with symbol and decimals already applied (raw and human-readable). Costs $0.002 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_free_gas_sample`Free sample: latest Base block number and base fee (gwei). Use it to test the connection.	Free sample: latest Base block number and base fee (gwei). Use it to test the connection.	Not declared	Yes	Not declared	Not declared
`base_gas`Current Base gas: base fee, gas price, suggested EIP-1559 max fee and priority fee (gwei), block fullness, and cost of a plain ETH transfer. Costs $0.001 USDC on Base via x402.	Current Base gas: base fee, gas price, suggested EIP-1559 max fee and priority fee (gwei), block fullness, and cost of a plain ETH transfer. Costs $0.001 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_name`Resolve a Basename (name.base.eth) or ENS name to its Base/Ethereum address, or reverse-resolve an address to its primary ENS/Basename. Includes avatar record. Costs $0.001 USDC on Base via x402.	Resolve a Basename (name.base.eth) or ENS name to its Base/Ethereum address, or reverse-resolve an address to its primary ENS/Basename. Includes avatar record. Costs $0.001 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_price`On-chain USDC price of any Base ERC-20: executable Uniswap v3 quote for 1 whole token (direct USDC pool or via WETH, best fee tier). No third-party price API. Costs $0.003 USDC on Base via x402.	On-chain USDC price of any Base ERC-20: executable Uniswap v3 quote for 1 whole token (direct USDC pool or via WETH, best fee tier). No third-party price API. Costs $0.003 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_token`Token facts on Base: name, symbol, decimals, total supply, contract code size, owner() and EIP-1967 proxy implementation, plus plain-language notes (upgradeable? owner renounced?). Read-only facts, not advice. Costs $0.003 USDC on Base via x402.	Token facts on Base: name, symbol, decimals, total supply, contract code size, owner() and EIP-1967 proxy implementation, plus plain-language notes (upgradeable? owner renounced?). Read-only facts, not advice. Costs $0.003 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_transfers`Recent ERC-20 transfers in and out of an address on Base for up to 5 tokens (default USDC), newest first, over the last ~10k blocks (max 30k). Check incoming payments or wallet activity. Costs $0.004 USDC on Base via x402.	Recent ERC-20 transfers in and out of an address on Base for up to 5 tokens (default USDC), newest first, over the last ~10k blocks (max 30k). Check incoming payments or wallet activity. Costs $0.004 USDC on Base via x402.	Not declared	Yes	Not declared	Yes
`base_tx`Human-readable summary of a Base transaction: status, block time, from/to, value, total fee (incl. L1 fee), and decoded ERC-20 Transfer events with token symbols and amounts. Handy to verify a payment landed. Costs $0.003 USDC on Base via x402.	Human-readable summary of a Base transaction: status, block time, from/to, value, total fee (incl. L1 fee), and decoded ERC-20 Transfer events with token symbols and amounts. Handy to verify a payment landed. Costs $0.003 USDC on Base via x402.	Not declared	Yes	Not declared	Yes

Details

Registry status: Active
Published: Oct 30, 2026
Updated: Oct 30, 2026
Website: https://baselens-api.vercel.app/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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