# MCPFax On-Chain Toolkit (remote · onchain-toolkit.bowling-anthony.workers.dev)

The on-chain facts you need in the seconds before you transact.

- Trust score: 73/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- remote · `onchain-toolkit.bowling-anthony.workers.dev`: 73/100 (this document), [markdown](https://verifymcp.io/servers/com-mcpscores-onchain-toolkit/onchain-toolkit.md), [page](https://verifymcp.io/servers/com-mcpscores-onchain-toolkit/onchain-toolkit)

## Channel facts

- Endpoint: `https://onchain-toolkit.bowling-anthony.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.2`

## 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 2026-09-21.

- **Endpoint Security**: 46/100
  - 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 6 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 enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - 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**: 78/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 895 tokens (~149/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 93/100
  - Stability observed for 28 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**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the MCPFax On-Chain Toolkit MCP server?

MCPFax On-Chain Toolkit is a hosted endpoint at https://onchain-toolkit.bowling-anthony.workers.dev/mcp, 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 com-mcpscores-onchain-toolkit 'https://onchain-toolkit.bowling-anthony.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-mcpscores-onchain-toolkit": {
      "url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-mcpscores-onchain-toolkit": {
      "type": "http",
      "url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-mcpscores-onchain-toolkit]
url = "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-mcpscores-onchain-toolkit": {
      "type": "remote",
      "url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-mcpscores-onchain-toolkit --url 'https://onchain-toolkit.bowling-anthony.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-mcpscores-onchain-toolkit:
    url: "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-mcpscores-onchain-toolkit": {
      "Transport": "http",
      "Url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-mcpscores-onchain-toolkit -t streamable-http -u 'https://onchain-toolkit.bowling-anthony.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-mcpscores-onchain-toolkit": {
      "type": "http",
      "url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
    }
  }
}
```

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.

### 2026-09-19 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-11 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-08 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-06 (score 67, +1)

- [functional] Server version: 1.0.0 → 1.0.2

### 2026-09-04 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `request_data` (~90 tokens)

Tell us what data you are looking for (free)

FREE, no payment. Describe in your own words the data you are trying to buy — anything, not just on-chain data — and get back whether we operate a service that supplies it, with the MCP endpoint if so. Every request is catalogued so repeatedly-requested data gets built. Nothing identifying is stored, only the words of the request.

Input parameters:

- `need` (string, required): What you are looking for.

### `demand_report` (~57 tokens)

What agents are asking for most (free)

FREE, no payment. The aggregate of what agents have told us they are looking for, most-requested first, with the categories nothing available yet serves.

Input parameters:

- `days` (string): Window in days, default 30, max 90.

### `gas_now` (~144 tokens)

Current gas price on one or several chains

Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon — in wei and gwei, plus what a plain 21,000-gas transfer would cost in the native token, which is the number you actually budget with. Pass several chains comma-separated to compare where to execute. Call this immediately before sending a transaction: gas moves every block, so the answer is good for seconds, not minutes. Costs $0.005 USDC per call via x402 on Base.

Input parameters:

- `chain` (string): One or more of ethereum, base, arbitrum, optimism, polygon — comma-separated, e.g. 'base,ethereum'. Defaults to base.

### `token_info` (~150 tokens)

ERC-20 token details by contract address

Read an ERC-20's name, symbol, decimals and total supply straight from the contract on the chain you name, and confirm the address actually has code there. Use before quoting an amount or building a transfer: getting decimals wrong is the classic way to send 1,000,000x the intended value. An address with no code, or a contract that is not an ERC-20, is reported as such and is NOT charged. Costs $0.005 USDC per call via x402 on Base.

Input parameters:

- `address` (string, required): 0x-prefixed 20-byte contract address.
- `chain` (string): ethereum, base, arbitrum, optimism or polygon. Defaults to base.

### `tx_status` (~132 tokens)

Did this transaction succeed?

Status of a transaction by hash: success, failed or still pending, with the block it landed in, sender and recipient, value moved, gas used, the fee actually paid, and how many logs it emitted. Use to confirm an action you took really settled rather than assuming it did. An unknown hash is reported as not_found and is NOT charged. Costs $0.005 USDC per call via x402 on Base.

Input parameters:

- `chain` (string): ethereum, base, arbitrum, optimism or polygon. Defaults to base.
- `hash` (string, required): 0x-prefixed 32-byte transaction hash.

### `address_info` (~147 tokens)

Balance, next nonce, and whether an address is a contract

Native balance, the next nonce to use, and whether the address holds contract code — the three things needed before sending from or to an address. Pass 'token' as well to read an ERC-20 balance for the same address in the same call. Values are read at the latest block, so a reorg can change them. Costs $0.008 USDC per call via x402 on Base.

Input parameters:

- `address` (string, required): 0x-prefixed 20-byte address.
- `chain` (string): ethereum, base, arbitrum, optimism or polygon. Defaults to base.
- `token` (string): Optional ERC-20 contract address to also report that token's balance.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-mcpscores-onchain-toolkit/onchain-toolkit#diagnostics

## Score history

- 2026-09-21: 73
- 2026-09-20: 73
- 2026-09-19: 73
- 2026-09-18: 72
- 2026-09-17: 72
- 2026-09-16: 71
- 2026-09-15: 71
- 2026-09-14: 70
- 2026-09-13: 70
- 2026-09-12: 69
- 2026-09-11: 69
- 2026-09-10: 68
- 2026-09-09: 68
- 2026-09-08: 68
- 2026-09-07: 67
- 2026-09-06: 67
- 2026-09-05: 66
- 2026-09-04: 66
- 2026-09-03: 65
- 2026-09-02: 65
- 2026-09-01: 64
- 2026-08-31: 64
- 2026-08-30: 63
- 2026-08-29: 63
- 2026-08-28: 62
- 2026-08-27: 62
- 2026-08-26: 62
- 2026-08-25: 60
- 2026-08-24: 59

## Common questions

### What is the MCPFax On-Chain Toolkit MCP server?

MCPFax On-Chain Toolkit is an MCP server listed in the public MCP registry as com.mcpscores/onchain-toolkit. The on-chain facts you need in the seconds before you transact. This page covers its hosted endpoint (https://onchain-toolkit.bowling-anthony.workers.dev/mcp).

### Is the MCPFax On-Chain Toolkit MCP server safe to use?

MCPFax On-Chain Toolkit scores 73 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 MCPFax On-Chain Toolkit MCP server expose?

MCPFax On-Chain Toolkit exposes 6 tools: request_data, demand_report, gas_now, token_info, tx_status, address_info. Their descriptions and schemas cost roughly 720 tokens of context every time the server is loaded.

### Does the MCPFax On-Chain Toolkit MCP server require authentication?

No. We connected to MCPFax On-Chain Toolkit without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the MCPFax On-Chain Toolkit MCP server still maintained?

MCPFax On-Chain Toolkit is still listed as active in the MCP registry. We last reached this channel on 21 September 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://onchain-toolkit.bowling-anthony.workers.dev/mcp
- Website: https://mcpscores.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-mcpscores-onchain-toolkit/onchain-toolkit.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-mcpscores-onchain-toolkit/onchain-toolkit.json
- HTML version of this page: https://verifymcp.io/servers/com-mcpscores-onchain-toolkit/onchain-toolkit