# MACH Base

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

- name: io.github.TheAliphant/mach-base
- version: 1.0.3
- connection class: R0 (autonomous)
- trust: 80/100 flags: no-repository
- quality: 69/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.TheAliphant%2Fmach-base
- tools: https://api.protogrid.dev/v1/servers/io.github.TheAliphant%2Fmach-base/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "mach-base": {
      "type": "http",
      "url": "https://api.mach.gallery/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 45
- drivers: +website +reachable +uptime-100% +updated-7d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 69/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 18 of 18 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: base_wallet_balance (idempotentHint); base_erc20_transfers (idempotentHint); base_block_number (idempotentHint); …
- pass `tools.token_cost`: about 2,784 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 18 tool changes in 30 days
- fail `stability.rug_pull`: 9 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 18, about 2,784 tokens to load them all
- tool set hash: 4c0c4a5f5581112ada3953d420d760a4
- tools last changed: 2026-10-13T10:11:59.249Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.TheAliphant/mach-base.svg)](https://protogrid.dev/servers/io.github.TheAliphant/mach-base)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-13 `base_erc20_transfers` changed (description) **meaning changed**
  - before: Find recent ERC-20 transfers on Base, optionally filtered to transfers from or to a specific wallet. Costs $0.005 USDC via x402.
  - after: Find recent ERC-20 Transfer events on Base, optionally filtered by sender or recipient wallet. Results cover only the queried block window. Costs $0.005 USDC via x402.
- 2026-10-13 `base_contract_info` changed (description)
  - before: Inspect a Base smart contract and get token metadata, bytecode size and common interface detection in one call. Costs $0.005 USDC via x402.
  - after: Identify a Base contract before interacting: inspect bytecode size, available token metadata and common interface signals. Not a security audit. Costs $0.005 USDC via x402.
- 2026-10-13 `base_total_supply` changed (description) **meaning changed**
  - before: Get total supply for an ERC-20 token or ERC-721 NFT contract on Base. Costs $0.005 USDC via x402.
  - after: Check a Base ERC-20 or ERC-721 contract’s reported total supply. Contract data is not independently audited circulation. Costs $0.005 USDC via x402.
- 2026-10-13 `base_wallet_snapshot` changed (description) **meaning changed**
  - before: Take a Base wallet snapshot in one call: native ETH plus up to 10 supplied ERC-20 token balances. Costs $0.005 USDC via x402.
  - after: Check a Base wallet’s funding context in one read: return native ETH and balances for up to ten specified ERC-20 contracts. No signing or custody. Costs $0.005 USDC via x402.
- 2026-10-13 `base_transaction_context` changed (description, annotations) **meaning changed**
  - before: Use when an agent needs one-call Base transaction context to verify a payment, debug a failed transaction, or confirm settlement. Costs $0.008 USDC via x402.
  - after: Investigate a Base payment timeout or failed transaction with transaction, receipt, gas and fee context. Onchain success is not proof that a specific USDC obligation or service delivery was met. Costs $0.008 USDC via x402.
- 2026-10-13 `base_block` changed (description)
  - before: Get a Base block by number or tag with its header and transaction hashes. Costs $0.005 USDC via x402.
  - after: Inspect a Base block by number or tag: retrieve its header and transaction hashes to investigate chain activity. Costs $0.005 USDC via x402.
- 2026-10-13 `base_transaction` changed (description)
  - before: Get a full Base transaction by hash, including sender, recipient, value, calldata and live transaction details. Costs $0.008 USDC via x402.
  - after: Inspect a Base transaction by hash: retrieve sender, recipient, value, calldata and transaction fields. Use Transaction Context for receipt and confirmation status. Costs $0.008 USDC via x402.
- 2026-10-13 `base_eth_call` changed (description)
  - before: Make a read-only smart-contract call on Base with eth_call without sending a transaction. Costs $0.005 USDC via x402.
  - after: Read Base contract state without broadcasting a transaction: run eth_call with supplied calldata and return the raw response. Costs $0.005 USDC via x402.
- 2026-10-13 `base_logs` changed (description)
  - before: Query smart-contract event logs on Base by contract address, topics and bounded block range. Costs $0.005 USDC via x402.
  - after: Find Base smart-contract events in a bounded block range: return onchain logs filtered by contract address and optional topics. Costs $0.005 USDC via x402.
- 2026-10-13 `base_receipt` changed (description) **meaning changed**
  - before: Check whether a Base transaction succeeded, get its receipt, and count current confirmations. Costs $0.005 USDC via x402.
  - after: Check whether a Base transaction was mined and succeeded: return receipt status and confirmations. This does not prove the correct payee, token amount or service delivery. Costs $0.005 USDC via x402.

Full history: https://api.protogrid.dev/v1/servers/io.github.TheAliphant%2Fmach-base/changes

## Remotes

- https://api.mach.gallery/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (18)

- `base_allowance`: Check a Base token approval before an agent acts: return the ERC-20 allowance for one token, owner and spender. Does not grant approval. Costs $0.005 USDC via x402.
- `base_block`: Inspect a Base block by number or tag: retrieve its header and transaction hashes to investigate chain activity. Costs $0.005 USDC via x402.
- `base_block_number`: Check Base chain progress: return the latest mainnet block number for freshness checks and polling. This is not transaction confirmation. Costs $0.005 USDC via x402.
- `base_contract_code`: Tell a Base contract address from an externally owned account: return whether code is deployed and its bytecode size. Not a security audit. Costs $0.005 USDC via x402.
- `base_contract_info`: Identify a Base contract before interacting: inspect bytecode size, available token metadata and common interface signals. Not a security audit. Costs $0.005 USDC via x402.
- `base_erc20_balance`: Check a wallet’s USDC or ERC-20 balance on Base: return raw token units for a specified token contract and wallet address. Costs $0.005 USDC via x402.
- `base_erc20_transfers`: Find recent ERC-20 Transfer events on Base, optionally filtered by sender or recipient wallet. Results cover only the queried block window. Costs $0.005 USDC via x402.
- `base_eth_call`: Read Base contract state without broadcasting a transaction: run eth_call with supplied calldata and return the raw response. Costs $0.005 USDC via x402.
- `base_gas_price`: Check the current Base gas price in wei before estimating transaction fees. The quote alone is not the total transaction cost. Costs $0.005 USDC via x402.
- `base_logs`: Find Base smart-contract events in a bounded block range: return onchain logs filtered by contract address and optional topics. Costs $0.005 USDC via x402.
- `base_nonce`: Prepare a Base transaction: get a wallet’s current nonce without signing or broadcasting a transaction. Costs $0.005 USDC via x402.
- `base_receipt`: Check whether a Base transaction was mined and succeeded: return receipt status and confirmations. This does not prove the correct payee, token amount or service delivery. Costs $0.005 USDC via x402.
- `base_total_supply`: Check a Base ERC-20 or ERC-721 contract’s reported total supply. Contract data is not independently audited circulation. Costs $0.005 USDC via x402.
- `base_transaction`: Inspect a Base transaction by hash: retrieve sender, recipient, value, calldata and transaction fields. Use Transaction Context for receipt and confirmation status. Costs $0.008 USDC via x402.
- `base_transaction_context`: Investigate a Base payment timeout or failed transaction with transaction, receipt, gas and fee context. Onchain success is not proof that a specific USDC obligation or service delivery was met. Costs $0.008 USDC via x402.
- `base_wallet_balance`: Check whether a Base wallet has native ETH available for gas: return its balance in wei. Read-only; no wallet access or signing. Costs $0.005 USDC via x402.
- `base_wallet_snapshot`: Check a Base wallet’s funding context in one read: return native ETH and balances for up to ten specified ERC-20 contracts. No signing or custody. Costs $0.005 USDC via x402.
- `mach_choose`: Free decision layer: map an agent goal to the narrowest paid MACH Base capability, exact price, expected result fields and exact next request. Returns no live chain data and has no side effects.