# io.github.castralis122/base-web3-m2m-hub (remote · auditor-x402.onrender.com)

Live Base Mainnet on-chain data (gas, DEX, Aave, token risk, prices). Pay per call in USDC via x402.

- Trust score: 69/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `auditor-x402.onrender.com`: 69/100 (this document), [markdown](https://verifymcp.io/servers/castralis122-base-web3-m2m-hub/mcp-v1.md), [page](https://verifymcp.io/servers/castralis122-base-web3-m2m-hub/mcp-v1)

## Channel facts

- Endpoint: `https://auditor-x402.onrender.com/mcp/v1`
- Transports: `streamable-http`
- Auth: `none`
- Version: `46.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 1 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 75/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 2088 tokens (~122/item across 17 items; 17 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 53/100
  - Stability observed for 16 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "token-deploy-radar" implies "deploy" and declares readOnlyHint instead, contradicting what its own name says it does.
  - An AI judge read all 18 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the io.github.castralis122/base-web3-m2m-hub MCP server?

io.github.castralis122/base-web3-m2m-hub is a hosted endpoint at https://auditor-x402.onrender.com/mcp/v1, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http castralis122-base-web3-m2m-hub 'https://auditor-x402.onrender.com/mcp/v1'
```

### Cursor

```json
{
  "mcpServers": {
    "castralis122-base-web3-m2m-hub": {
      "url": "https://auditor-x402.onrender.com/mcp/v1"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "castralis122-base-web3-m2m-hub": {
      "type": "http",
      "url": "https://auditor-x402.onrender.com/mcp/v1"
    }
  }
}
```

### Codex

```toml
[mcp_servers.castralis122-base-web3-m2m-hub]
url = "https://auditor-x402.onrender.com/mcp/v1"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "castralis122-base-web3-m2m-hub": {
      "type": "remote",
      "url": "https://auditor-x402.onrender.com/mcp/v1",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add castralis122-base-web3-m2m-hub --url 'https://auditor-x402.onrender.com/mcp/v1' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  castralis122-base-web3-m2m-hub:
    url: "https://auditor-x402.onrender.com/mcp/v1"
```

### Netclaw

```json
{
  "McpServers": {
    "castralis122-base-web3-m2m-hub": {
      "Transport": "http",
      "Url": "https://auditor-x402.onrender.com/mcp/v1"
    }
  }
}
```

### Vellum

```bash
assistant mcp add castralis122-base-web3-m2m-hub -t streamable-http -u 'https://auditor-x402.onrender.com/mcp/v1'
```

### Other

```json
{
  "mcpServers": {
    "castralis122-base-web3-m2m-hub": {
      "type": "http",
      "url": "https://auditor-x402.onrender.com/mcp/v1"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-26 (score 64, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “contract-profile” rewrote its description, which is the text the model reads
- [security] Tool “contract-read” rewrote its description, which is the text the model reads
- [security] Tool “liquidity-health” rewrote its description, which is the text the model reads
- [security] Tool “token-due-diligence” rewrote its description, which is the text the model reads
- [security] Tool “whale-wallet-tracker” rewrote its description, which is the text the model reads

### 2026-10-25 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (17)

### `gas-optimizer` (~99 tokens)

Gas Optimizer

Gas ONLY: live Base Mainnet gas from eth_feeHistory — latest and 10-block average base fee (gwei), priority-fee percentiles (p25/p50/p75) and a congestion label. Use this when you need gas and nothing else; if you also want WETH/USDC pricing, use market-snapshot instead (one cheaper call). Price: 0.0020 USDC per call (first call free).

### `dex-arbitrage` (~124 tokens)

Dex Arbitrage

DEX pricing/spread ONLY: WETH/USDC spot price on-chain from Uniswap v3 and Aerodrome v2, with gross spread in bps and which side is cheaper (fees, gas and slippage excluded). Use this for cross-DEX pricing; for expected slippage of a given trade size use pool-slippage; if you also need gas use market-snapshot. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `pair` (string): Only "WETH/USDC" is supported

### `whale-wallet-tracker` (~111 tokens)

Whale Wallet Tracker

Large USDC transfers on Base over the most recent blocks (default ~300), from confirmed Transfer logs: amount, sender, receiver, tx hash, block. Price: 0.0100 USDC per call (premium: always paid).

Input parameters:

- `minUsdcAmount` (number): Minimum transfer size in USDC (min 1000, default 100000)
- `windowBlocks` (number): Blocks to scan, 25-600 (default 300, ~2s per block)

### `flash-loans` (~78 tokens)

Flash Loans

Aave v3 on Base: available flash-loan liquidity and flash-loan fee for any listed asset (default WETH), read on-chain. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `asset` (string): ERC-20 address (0x...) of the asset; default WETH

### `liquidity-health` (~132 tokens)

Liquidity Health

Token risk flags ONLY: for an ERC-20 on Base (honeypot, tax over 10%, mintable, unverified source, hidden owner, pausable...) from GoPlus plus on-chain facts (symbol, supply, owner). No safety verdict; no flags is not a guarantee. For a full check that ALSO adds contract/proxy facts and pool liquidity in one call, use token-due-diligence instead. Price: 0.0100 USDC per call (premium: always paid).

Input parameters:

- `tokenAddress` (string, required): ERC-20 token contract address (0x...) on Base

### `liquidation-monitor` (~82 tokens)

Liquidation Monitor

Aave v3 on Base: total collateral, debt, health factor and risk band (LIQUIDATABLE / AT_RISK / WATCH / HEALTHY / NO_DEBT) for any wallet. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `userAddress` (string, required): Wallet address (0x...) to inspect

### `token-deploy-radar` (~103 tokens)

Token Deploy Radar

Newest Uniswap v3 pools created on Base (PoolCreated events) with token symbols, fee tier and block. A new pool does not imply a legitimate token. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `limit` (number): Max pools returned, 1-30 (default 15)
- `windowBlocks` (number): Blocks to scan, 50-3000 (default 1500)

### `token-due-diligence` (~131 tokens)

Token Due Diligence

FULL token check (BUNDLE): combines GoPlus risk flags (= liquidity-health) + contract/proxy/owner facts (= contract-profile) + Uniswap v3 pools vs WETH/USDC with quote-side liquidity in USD, in a single call. Objective signals, not a verdict. Use this instead of calling liquidity-health and contract-profile separately; use the individual tools only if you need just one aspect. Price: 0.0300 USDC per call (premium: always paid).

Input parameters:

- `tokenAddress` (string, required): ERC-20 token contract address (0x...) on Base

### `contract-profile` (~111 tokens)

Contract Profile

Contract structure ONLY: bytecode size, proxy detection (EIP-1167 / EIP-1967 implementation and admin) and owner() for any address on Base. NOT a security audit. For a full token check that also adds risk flags and pool liquidity, use token-due-diligence; to read an arbitrary view function use contract-read. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `address` (string, required): Address (0x...) to inspect

### `token-spot-price` (~123 tokens)

Token Spot Price

Price of ONE token: on-chain USD spot price for a single ERC-20 on Base, from the deepest Uniswap v3 pool vs USDC/WETH (slot0), with the pool/fee tier used and its USD depth. No off-chain feed; thin pools are easy to manipulate. To price MANY tokens at once, use multi-token-price instead (one cheaper call). Price: 0.0020 USDC per call (first call free).

Input parameters:

- `tokenAddress` (string, required): ERC-20 token contract address (0x...) on Base

### `wallet-portfolio` (~104 tokens)

Wallet Portfolio

Portfolio of a wallet on Base: native ETH plus a curated set of major ERC-20s (USDC, WETH, cbETH, cbBTC, DAI, USDbC), each valued in USD on-chain via Uniswap v3. Returns per-token amounts, USD values and the total. Price: 0.0040 USDC per call (premium: always paid).

Input parameters:

- `userAddress` (string, required): Wallet address (0x...) to inspect

### `market-snapshot` (~118 tokens)

Market Snapshot

BUNDLE: one-call Base market snapshot combining live gas (base fee, priority-fee percentiles, congestion) AND WETH/USDC spot price + gross spread across Uniswap v3 / Aerodrome. Use this when you want both gas and DEX pricing in a single cheaper call; do NOT also call gas-optimizer or dex-arbitrage for the same purpose. Prefer the individual tools only if you need just one of the two. Price: 0.0060 USDC per call (premium: always paid).

### `aave-yield` (~84 tokens)

Aave Yield

Live Aave v3 reserve rates on Base read on-chain: current supply APY and variable borrow APY for any listed asset (default WETH). For yield and borrow-cost bots. Price: 0.0040 USDC per call (premium: always paid).

Input parameters:

- `asset` (string): ERC-20 address (0x...); default WETH

### `multi-token-price` (~118 tokens)

Multi Token Price

Price of MANY tokens (BATCH): on-chain USD spot price for up to 15 ERC-20s in one call, each from its deepest Uniswap v3 pool vs USDC/WETH. Tokens with no pool return an error entry. Use this for 2+ tokens; for a single token use token-spot-price (cheaper). Price: 0.0080 USDC per call (premium: always paid).

Input parameters:

- `tokenAddresses` (array, required): Array of ERC-20 addresses (0x...), max 15

### `pool-slippage` (~106 tokens)

Pool Slippage

Estimated price impact / slippage for a WETH/USDC trade of a given USD size on Uniswap v3, from on-chain pool depth. Order-of-magnitude signal (v3 is concentrated liquidity), useful for MEV/execution bots before trading. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `tradeSizeUsd` (number): Trade size in USD, 100-5,000,000 (default 10000)

### `contract-read` (~147 tokens)

Contract Read

Generic read-only call to any contract on Base: provide an address and hex calldata (4-byte selector, e.g. 0x18160ddd = totalSupply, optionally followed by ABI-encoded args) and get the raw return data plus best-effort uint/address/bool/string decoding. Read-only (never sends a transaction). Use this for arbitrary view functions not covered by a dedicated tool. Price: 0.0030 USDC per call (premium: always paid).

Input parameters:

- `address` (string, required): Contract address (0x...) on Base
- `data` (string, required): Hex calldata starting with a 4-byte function selector (e.g. "0x18160ddd")

### `contract-logs` (~160 tokens)

Contract Logs

Recent event logs for any contract on Base over a bounded recent window (reads eth_getLogs). Optionally filter by topic0 (event signature hash). Returns up to 50 logs with block, tx hash, topics and data. Window is limited by the RPC log-range quota. Use this for generic event queries not covered by whale-wallet-tracker or token-deploy-radar. Price: 0.0050 USDC per call (premium: always paid).

Input parameters:

- `address` (string, required): Contract address (0x...) to read logs from
- `topic0` (string): Optional 32-byte event signature hash (0x...) to filter by
- `windowBlocks` (number): Blocks to scan (10-120, default 100)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/castralis122-base-web3-m2m-hub/mcp-v1#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 68
- 2026-11-03: 68
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 66
- 2026-10-30: 66
- 2026-10-29: 65
- 2026-10-28: 65
- 2026-10-27: 64
- 2026-10-26: 64
- 2026-10-25: 64
- 2026-10-24: 63
- 2026-10-23: 63
- 2026-10-22: 62
- 2026-10-21: 62
- 2026-10-20: 61

## Common questions

### What is the io.github.castralis122/base-web3-m2m-hub MCP server?

io.github.castralis122/base-web3-m2m-hub is an MCP server listed in the public MCP registry as io.github.castralis122/base-web3-m2m-hub. Live Base Mainnet on-chain data (gas, DEX, Aave, token risk, prices). Pay per call in USDC via x402. This page covers its hosted endpoint (https://auditor-x402.onrender.com/mcp/v1).

### Is the io.github.castralis122/base-web3-m2m-hub MCP server safe to use?

io.github.castralis122/base-web3-m2m-hub scores 69 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.castralis122/base-web3-m2m-hub MCP server expose?

io.github.castralis122/base-web3-m2m-hub exposes 17 tools: gas-optimizer, dex-arbitrage, whale-wallet-tracker, flash-loans, liquidity-health, and 12 more. Their descriptions and schemas cost roughly 1,931 tokens of context every time the server is loaded.

### Does the io.github.castralis122/base-web3-m2m-hub MCP server require authentication?

No. We connected to io.github.castralis122/base-web3-m2m-hub without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.castralis122/base-web3-m2m-hub MCP server still maintained?

io.github.castralis122/base-web3-m2m-hub is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://auditor-x402.onrender.com/mcp/v1
- Repository: https://github.com/castralis122/auditor-x402
- Website: https://auditor-x402.onrender.com/
- Changelog RSS feed: https://verifymcp.io/servers/castralis122-base-web3-m2m-hub/mcp-v1.xml
- Changelog JSON feed: https://verifymcp.io/servers/castralis122-base-web3-m2m-hub/mcp-v1.json
- HTML version of this page: https://verifymcp.io/servers/castralis122-base-web3-m2m-hub/mcp-v1