Free Base Blockchain Tools
by agentsapi.top · remote · no sign-in to list tools · v1.0.0 · published by top.agentsapi
13 free Base tools: address labels, tx explain, balances, receipts, gas, logs, bytecode.
14 tools: 1 do something that can't be undone and 13 only read.
Scanned Oct 21, 2026
- Deletes or cancels0Claude Code: deny
- Can't be undone1Claude Code: ask: see these tools
- Changes things0Claude Code: ask
- Only reads13Claude Code: allow: see these tools
No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.
claude mcp add --transport http free-blockchain https://agentsapi.top/free-blockchain/Tools
Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.
14 tools
Can't be undone 1Claude Code: ask
estimate_gasEstimate gas needed for a transaction.No findings
Why it is in this group
- The input addresses people (input.to): what it sends cannot be taken back.
Description, as the server wrote it Estimate gas needed for a transaction. Useful for dapps and wallets to show users how much gas they'll pay.
Only reads 13Claude Code: allow
explain_transaction_simpleExplain a transaction in plain English: who sent what to whom, with address labels.No findings
Why it is in this group
- The name "explain_transaction_simple" says "explain": a word for reading.
Description, as the server wrote it Explain a transaction in plain English: who sent what to whom, with address labels. FREE simplified version of our premium explain tool.
get_address_labelGet a human-readable label for an EVM address (100K+ entity labels: exchanges, bridges, protocols, scams).No findings
Why it is in this group
- The name "get_address_label" says "get": a word for reading.
Description, as the server wrote it Get a human-readable label for an EVM address (100K+ entity labels: exchanges, bridges, protocols, scams). FREE, no payment required.
get_address_risk_scoreGet a risk score (0-100) for an address based on our 100K+ labeled address database.No findings
Why it is in this group
- The name "get_address_risk_score" says "get": a word for reading.
Description, as the server wrote it Get a risk score (0-100) for an address based on our 100K+ labeled address database. Scam addresses score 90-100; known exchanges/bridges score 0-20; unknown addresses score 50. Use this BEFORE sending funds to verify the destination.
get_balanceGet ETH balance of an address on BaseNo findings
Why it is in this group
- The name "get_balance" says "get": a word for reading.
Description, as the server wrote it Get ETH balance of an address on Base
get_block_by_numberGet block details by block number: timestamp, miner, transaction count, gas used.No findings
Why it is in this group
- The name "get_block_by_number" says "get": a word for reading.
Description, as the server wrote it Get block details by block number: timestamp, miner, transaction count, gas used.
get_block_numberGet the current latest block number on BaseNo findings
Why it is in this group
- The name "get_block_number" says "get": a word for reading.
Description, as the server wrote it Get the current latest block number on Base
get_contract_codeGet contract bytecode at an address.No findings
Why it is in this group
- The name "get_contract_code" says "get": a word for reading.
Description, as the server wrote it Get contract bytecode at an address. Useful for checking if an address is a contract or a wallet.
get_contract_logsGet event logs from a contract in a block range.No findings
Why it is in this group
- The name "get_contract_logs" says "get": a word for reading.
Description, as the server wrote it Get event logs from a contract in a block range. Useful for tracking transfers, approvals, etc.
get_gas_priceGet current gas price on BaseNo findings
Why it is in this group
- The name "get_gas_price" says "get": a word for reading.
Description, as the server wrote it Get current gas price on Base
get_transactionGet transaction details by hash on BaseNo findings
Why it is in this group
- The name "get_transaction" says "get": a word for reading.
Description, as the server wrote it Get transaction details by hash on Base
get_transaction_receiptGet transaction receipt by hash: success/failure status, gas used, logs.No findings
Why it is in this group
- The name "get_transaction_receipt" says "get": a word for reading.
Description, as the server wrote it Get transaction receipt by hash: success/failure status, gas used, logs. Useful for checking if a tx succeeded.
get_usdc_balanceGet USDC balance of an address on Base (stablecoin balance, more useful than ETH for most agents)No findings
Why it is in this group
- The name "get_usdc_balance" says "get": a word for reading.
Description, as the server wrote it Get USDC balance of an address on Base (stablecoin balance, more useful than ETH for most agents)
search_labels_by_categorySearch all labeled addresses by category (e.g.No findings
Why it is in this group
- The name "search_labels_by_category" says "search": a word for reading.
Description, as the server wrote it Search all labeled addresses by category (e.g. exchange, bridge, protocol, scam). Returns up to 50 matches.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http free-blockchain https://agentsapi.top/free-blockchain/Run in a terminal.
Claude Code permissions
Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__free-blockchain__get_block_number",
"mcp__free-blockchain__get_gas_price",
"mcp__free-blockchain__get_balance",
"mcp__free-blockchain__get_transaction",
"mcp__free-blockchain__get_address_label",
"mcp__free-blockchain__get_usdc_balance",
"mcp__free-blockchain__explain_transaction_simple",
"mcp__free-blockchain__search_labels_by_category",
"mcp__free-blockchain__get_transaction_receipt",
"mcp__free-blockchain__get_block_by_number",
"mcp__free-blockchain__get_contract_logs",
"mcp__free-blockchain__get_contract_code",
"mcp__free-blockchain__get_address_risk_score"
],
"ask": [
"mcp__free-blockchain__estimate_gas"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as free-blockchain. Review it before you use it.