MACH Base

Server Details

Investigate Base transactions, check wallet funds and contracts. Read-only MCP. USDC via x402.

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Status: Unhealthy
Uptime: 83.4% over 41 days
Last Tested: 2026-11-02 06:32
Transport: Streamable HTTP
URL

TDQS

A3.9/5.0

Scored 2026-10-17 12:55 across 18 tools

Disambiguation4/5

Tools target distinct Base resources and actions, and mach_choose plus careful descriptions reduce confusion. However, several overlaps remain (contract_code vs contract_info, wallet_balance vs wallet_snapshot, transaction vs transaction_context vs receipt, logs vs erc20_transfers), so not perfectly distinct.

Naming Consistency4/5

All names use snake_case, and every data tool follows a clear base_ prefix with noun-based names. The single mach_choose meta tool is a minor deviation in prefix and verb style, but overall naming remains highly predictable.

Tool Count4/5

18 tools is slightly above the ideal 3-15 range, but most are meaningful Base read primitives. Some redundancy (wallet_snapshot vs granular balance tools, contract_code vs contract_info) keeps it from a 5.

Completeness4/5

Coverage is broad for read-only Base inspection: blocks, transactions, receipts, logs, contract state, ERC-20 balances/allowances/transfers, gas price, nonce, and wallet snapshots, with eth_call as a generic read. Missing native transfer history, gas estimation, multi-allowance batching, and any write/broadcast path (likely intentional for this server).

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

1 tool updateSep 25, 2026
- Addedmach_choose
15 tool updatesSep 23, 2026
- Changedbase_allowance9 fields changed
  - removedInput schema / properties / owner / $ref
```
Removed value: -"#/properties/token"
```
  - addedInput schema / properties / owner / description
```
Added value: +"ERC-20 token owner address on Base mainnet."
```
  - addedInput schema / properties / owner / pattern
```
Added value: +"^0x[0-9a-fA-F]{40}$"
```
  - addedInput schema / properties / owner / type
```
Added value: +"string"
```
  - removedInput schema / properties / spender / $ref
```
Removed value: -"#/properties/token"
```
  - addedInput schema / properties / spender / description
```
Added value: +"ERC-20 spender address whose allowance is being checked."
```
  - addedInput schema / properties / spender / pattern
```
Added value: +"^0x[0-9a-fA-F]{40}$"
```
  - addedInput schema / properties / spender / type
```
Added value: +"string"
```
  - addedInput schema / properties / token / description
```
Added value: +"ERC-20 or token contract address on Base mainnet."
```
- Changedbase_block1 field changed
  - addedInput schema / properties / block / description
```
Added value: +"Base block selector: block number or tag such as latest, safe, finalized, pending or earliest."
```
- Changedbase_contract_code1 field changed
  - addedInput schema / properties / address / description
```
Added value: +"20-byte 0x-prefixed EVM address on Base mainnet."
```
- Changedbase_contract_info1 field changed
  - addedInput schema / properties / address / description
```
Added value: +"Smart-contract address on Base mainnet."
```
- Changedbase_erc20_balance1 field changed
  - addedInput schema / properties / token / description
```
Added value: +"20-byte 0x-prefixed EVM address on Base mainnet."
```
- Changedbase_erc20_transfers11 fields changed
  - removedInput schema / properties / from_address / $ref
```
Removed value: -"#/properties/token"
```
  - addedInput schema / properties / from_address / description
```
Added value: +"Optional sender wallet to filter ERC-20 transfers."
```
  - addedInput schema / properties / from_address / pattern
```
Added value: +"^0x[0-9a-fA-F]{40}$"
```
  - addedInput schema / properties / from_address / type
```
Added value: +"string"
```
  - addedInput schema / properties / from_block / description
```
Added value: +"First Base block to include in the transfer query."
```
  - removedInput schema / properties / to_address / $ref
```
Removed value: -"#/properties/token"
```
  - addedInput schema / properties / to_address / description
```
Added value: +"Optional recipient wallet to filter ERC-20 transfers."
```
  - addedInput schema / properties / to_address / pattern
```
Added value: +"^0x[0-9a-fA-F]{40}$"
```
  - addedInput schema / properties / to_address / type
```
Added value: +"string"
```
  - addedInput schema / properties / to_block / description
```
Added value: +"Last Base block to include in the transfer query."
```
  - addedInput schema / properties / token / description
```
Added value: +"ERC-20 or token contract address on Base mainnet."
```
- Changedbase_eth_call3 fields changed
  - addedInput schema / properties / block / description
```
Added value: +"Base block selector: block number or tag such as latest, safe, finalized, pending or earliest."
```
  - addedInput schema / properties / data / description
```
Added value: +"0x-prefixed ABI calldata for a read-only eth_call."
```
  - addedInput schema / properties / to / description
```
Added value: +"Smart-contract address on Base mainnet."
```
- Changedbase_logs4 fields changed
  - addedInput schema / properties / address / description
```
Added value: +"Smart-contract address on Base mainnet."
```
  - addedInput schema / properties / from_block / description
```
Added value: +"First Base block to include in the log query."
```
  - addedInput schema / properties / to_block / description
```
Added value: +"Last Base block to include in the log query."
```
  - addedInput schema / properties / topics / description
```
Added value: +"Up to four Ethereum log topics; null keeps a topic position as a wildcard."
```
- Changedbase_nonce1 field changed
  - addedInput schema / properties / address / description
```
Added value: +"20-byte 0x-prefixed EVM address on Base mainnet."
```
- Changedbase_receipt1 field changed
  - addedInput schema / properties / tx_hash / description
```
Added value: +"32-byte 0x-prefixed Base transaction hash."
```
- Changedbase_total_supply1 field changed
  - addedInput schema / properties / token / description
```
Added value: +"ERC-20 or token contract address on Base mainnet."
```
- Changedbase_transaction1 field changed
  - addedInput schema / properties / tx_hash / description
```
Added value: +"32-byte 0x-prefixed Base transaction hash."
```
- Changedbase_transaction_context1 field changed
  - addedInput schema / properties / tx_hash / description
```
Added value: +"32-byte 0x-prefixed Base transaction hash."
```
- Changedbase_wallet_balance1 field changed
  - addedInput schema / properties / address / description
```
Added value: +"20-byte 0x-prefixed EVM address on Base mainnet."
```
- Changedbase_wallet_snapshot6 fields changed
  - addedInput schema / properties / address / description
```
Added value: +"Wallet or account address on Base mainnet."
```
  - addedInput schema / properties / tokens / description
```
Added value: +"Up to ten token contract addresses whose balances should be included."
```
  - removedInput schema / properties / tokens / items / $ref
```
Removed value: -"#/properties/address"
```
  - addedInput schema / properties / tokens / items / description
```
Added value: +"ERC-20 or token contract address on Base mainnet."
```
  - addedInput schema / properties / tokens / items / pattern
```
Added value: +"^0x[0-9a-fA-F]{40}$"
```
  - addedInput schema / properties / tokens / items / type
```
Added value: +"string"
```
1 tool updateSep 22, 2026
- Addedbase_transaction_context
16 tool updatesSep 22, 2026
- First observedbase_allowance
- First observedbase_block
- First observedbase_block_number
- First observedbase_contract_code
- First observedbase_contract_info
- First observedbase_erc20_balance
- First observedbase_erc20_transfers
- First observedbase_eth_call
- First observedbase_gas_price
- First observedbase_logs
- First observedbase_nonce
- First observedbase_receipt
- First observedbase_total_supply
- First observedbase_transaction
- First observedbase_wallet_balance
- First observedbase_wallet_snapshot

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