# Checkpoint402 (remote · api.checkpoint402.com)

Pay-per-call tx explainer, DeFi yields, token safety, SEC 8-K and OFAC data via x402 (USDC on Base).

- Trust score: 79/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `api.checkpoint402.com`: 79/100 (this document), [markdown](https://verifymcp.io/servers/com-checkpoint402-checkpoint402/api.md), [page](https://verifymcp.io/servers/com-checkpoint402-checkpoint402/api)

## Channel facts

- Endpoint: `https://api.checkpoint402.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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**: 11/100
  - TLS not yet verified: we couldn't open a connection to check the certificate.
  - Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS not yet verified: we couldn't read the response headers to check for it.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 0/100
  - Transport check failed: declared streamable-http, but we couldn't connect to verify it.
- **Schema Quality & AI Usability**: 0/100
  - Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Capabilities**: 0/100
  - Capabilities not yet verified: we couldn't read the endpoint's capabilities.

**Unverified: 5 categories.** Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### How do I install the Checkpoint402 MCP server?

Checkpoint402 is a hosted endpoint at https://api.checkpoint402.com/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-checkpoint402-checkpoint402 'https://api.checkpoint402.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-checkpoint402-checkpoint402": {
      "url": "https://api.checkpoint402.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-checkpoint402-checkpoint402": {
      "type": "http",
      "url": "https://api.checkpoint402.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-checkpoint402-checkpoint402]
url = "https://api.checkpoint402.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-checkpoint402-checkpoint402": {
      "type": "remote",
      "url": "https://api.checkpoint402.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-checkpoint402-checkpoint402 --url 'https://api.checkpoint402.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-checkpoint402-checkpoint402:
    url: "https://api.checkpoint402.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-checkpoint402-checkpoint402": {
      "Transport": "http",
      "Url": "https://api.checkpoint402.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-checkpoint402-checkpoint402 -t streamable-http -u 'https://api.checkpoint402.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-checkpoint402-checkpoint402": {
      "type": "http",
      "url": "https://api.checkpoint402.com/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.

### 2026-11-05 (score 79, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] HSTS header: fail → unverified
- [security regression] Authorization: partial → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] TLS certificate: pass → unverified
- [security regression] Stability: 0.73 → unverified
- [security regression] Transport: pass → fail
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-11-03 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 76, +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.

### 2026-10-26 (score 75, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 1393 → 1634
- [functional] New tool “token_safety_check”

### 2026-10-24 (score 74, +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.

### 2026-10-21 (score 73, +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.

## MCP tools (7)

### `list_services` (~31 tokens)

List Checkpoint402 services (free)

Free. Lists every Checkpoint402 data service with its price, inputs, example output link and how payment works.

### `explain_transaction` (~96 tokens)

Transaction Explainer ($0.03)

Paid: $0.03 USDC per successful call via x402 (not charged on errors). Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.

Input parameters:

- `chain` (string): Chain (default base)
- `hash` (string, required): Transaction hash (0x + 64 hex chars)

### `find_defi_yields` (~200 tokens)

Best DeFi Yield Finder ($0.05)

Paid: $0.05 USDC per successful call via x402 (not charged on errors). Top DeFi yields across 16k+ pools, filtered by asset, chain, minimum TVL and risk, each with a simple explained risk tier (outlier APY, thin TVL, reward-heavy, IL exposure). Data: DefiLlama.

Input parameters:

- `asset` (string): Token symbol, e.g. USDC, ETH
- `chain` (string): Chain name, e.g. Base, Ethereum, Arbitrum
- `limit` (number): Results, 1-50 (default 10)
- `maxRisk` (string): Highest risk tier to include (default medium; use high to include outlier APYs)
- `minTvlUsd` (number): Minimum pool TVL in USD (default 1,000,000)
- `stablecoinOnly` (boolean): Only stablecoin pools

### `new_token_safety_feed` (~140 tokens)

New Token Launch Feed ($0.10)

Paid: $0.10 USDC per successful call via x402 (not charged on errors). Newly launched token pools on Base, Ethereum or BSC, each with a 0-100 safety score and explicit red flags (honeypot, unverified code, mintable, owner powers, high tax, unlocked liquidity, whale concentration). Data: GeckoTerminal + GoPlus.

Input parameters:

- `chain` (string): Chain (default base)
- `limit` (number): Results, 1-20 (default 10)
- `minScore` (number): Only tokens with safety score >= this, 0-100 (default 0)

### `token_safety_check` (~132 tokens)

Token Safety Check ($0.02)

Paid: $0.02 USDC per successful call via x402 (not charged on errors). Is this token a scam? Checks any token on Base, Ethereum or BSC and returns a 0-100 safety score, a verdict, red flags (honeypot, hidden fees, owner powers, unlocked liquidity, whale concentration, creator's past honeypots), good signs and a plain-English summary. Data: GoPlus + DexScreener.

Input parameters:

- `address` (string, required): Token contract address (0x + 40 hex chars)
- `chain` (string): Chain (default base)

### `sec_8k_company_events` (~161 tokens)

Breaking Company Events (SEC 8-K) ($0.10)

Paid: $0.10 USDC per successful call via x402 (not charged on errors). Latest SEC 8-K filings — market-wide within minutes of filing, or for one ticker — with each item code translated to plain English, high-impact events flagged (earnings, CEO changes, M&A, bankruptcy, cyber incidents) and AI summaries of the filing text.

Input parameters:

- `highImpactOnly` (boolean): Only filings with a high-impact item
- `item` (string): Only filings with this 8-K item code, e.g. 5.02
- `limit` (number): Results, 1-20 (default 10)
- `ticker` (string): Stock ticker; omit for the market-wide latest feed

### `ofac_sanctions_screen` (~150 tokens)

OFAC Sanctions Screening ($0.05)

Paid: $0.05 USDC per successful call via x402 (not charged on errors). Screens a person/company name (fuzzy, alias-aware) and/or a crypto wallet address against the US Treasury OFAC SDN list, refreshed twice daily, including the extended-remarks file where most sanctioned crypto addresses are listed.

Input parameters:

- `address` (string): Crypto wallet address (EVM, BTC, TRX, …)
- `limit` (number): Max name candidates, 1-20 (default 5)
- `name` (string): Person or company name
- `threshold` (number): Name-match threshold 0.7-1 (default 0.92)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-checkpoint402-checkpoint402/api#diagnostics

## Score history

- 2026-11-05: 79
- 2026-11-04: 79
- 2026-11-03: 79
- 2026-11-02: 78
- 2026-11-01: 78
- 2026-10-31: 77
- 2026-10-30: 77
- 2026-10-29: 76
- 2026-10-28: 76
- 2026-10-27: 75
- 2026-10-26: 75
- 2026-10-25: 74
- 2026-10-24: 74
- 2026-10-23: 73
- 2026-10-22: 73
- 2026-10-21: 73
- 2026-10-20: 72
- 2026-10-19: 72
- 2026-10-18: 71
- 2026-10-17: 71
- 2026-10-16: 70
- 2026-10-15: 70
- 2026-10-14: 69
- 2026-10-13: 69

## Common questions

### What is the Checkpoint402 MCP server?

Checkpoint402 is an MCP server listed in the public MCP registry as com.checkpoint402/checkpoint402. Pay-per-call tx explainer, DeFi yields, token safety, SEC 8-K and OFAC data via x402 (USDC on Base). This page covers its hosted endpoint (https://api.checkpoint402.com/mcp).

### Is the Checkpoint402 MCP server safe to use?

Checkpoint402 scores 79 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 Checkpoint402 MCP server expose?

Checkpoint402 exposes 7 tools: list_services, explain_transaction, find_defi_yields, new_token_safety_feed, token_safety_check, and 2 more. Their descriptions and schemas cost roughly 910 tokens of context every time the server is loaded.

### Does the Checkpoint402 MCP server require authentication?

Its publisher declares no required credentials for Checkpoint402. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.

### Is the Checkpoint402 MCP server still maintained?

Checkpoint402 is still listed in the MCP registry, though our most recent checks did not reach this channel. We last reached this channel on 4 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://api.checkpoint402.com/mcp
- Website: https://checkpoint402.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-checkpoint402-checkpoint402/api.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-checkpoint402-checkpoint402/api.json
- HTML version of this page: https://verifymcp.io/servers/com-checkpoint402-checkpoint402/api