# Block Lottos (pypi · blocklottos-mcp)

Safe Block Lottos MCP for Base tickets and Base or Polygon jackpot reads.

- Trust score: 67/100 (medium)
- Change this week: +5
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- pypi · `blocklottos-mcp`: 67/100 (this document), [markdown](https://verifymcp.io/servers/com-blocklottos-blocklottos/blocklottos-mcp.md), [page](https://verifymcp.io/servers/com-blocklottos-blocklottos/blocklottos-mcp)

## Channel facts

- Registry: `pypi`
- Package: `blocklottos-mcp`
- Version: `1.0.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it.
  - 1 of 32 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 6/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 11 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 84/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 627 tokens (~52/item across 12 items; 10 tools + 2 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 37/100
  - Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the Block Lottos MCP server?

Block Lottos runs locally as a PyPI package, launched with uvx blocklottos-mcp. 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 com-blocklottos-blocklottos -- uvx blocklottos-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "com-blocklottos-blocklottos": {
      "command": "uvx",
      "args": [
        "blocklottos-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-blocklottos-blocklottos": {
      "command": "uvx",
      "args": [
        "blocklottos-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-blocklottos-blocklottos -- uvx blocklottos-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-blocklottos-blocklottos": {
      "type": "local",
      "command": [
        "uvx",
        "blocklottos-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-blocklottos-blocklottos --command uvx --arg blocklottos-mcp
```

### Hermes

```yaml
mcp_servers:
  com-blocklottos-blocklottos:
    command: "uvx"
    args: ["blocklottos-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-blocklottos-blocklottos": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "blocklottos-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-blocklottos-blocklottos -t stdio -c uvx -a blocklottos-mcp
```

### Other

```json
{
  "mcpServers": {
    "com-blocklottos-blocklottos": {
      "command": "uvx",
      "args": [
        "blocklottos-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-09-20 (score 67, +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.

### 2026-09-18 (score 66, +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.

### 2026-09-17 (score 65, +3)

- [functional improvement] Stability: unverified → 0.23

### 2026-09-10 (score 62)

First indexed and scored.

## MCP tools (10)

### `get_capabilities` (~31 tokens)

Read the authoritative Base game, 1-USDC price, gas, workflow, payout, and safety details.

### `get_jackpot` (~42 tokens)

Read the effective jackpot. Minimum: 100 USDC on Base or 100 POL on Polygon; higher live jackpot applies.

Input parameters:

- `chain` (string)

### `get_stats` (~25 tokens)

Read the current Base draw number, jackpot, next draw time, and contract metadata.

### `get_draw_history` (~39 tokens)

Read one to ten completed Base draws, or begin at a specified public draw ID.

Input parameters:

- `draw_id`
- `limit` (integer)

### `get_draw_proof` (~37 tokens)

Read the public proof for a Base draw. Omit draw_id for the current public proof when available.

Input parameters:

- `draw_id`

### `get_wallet_tickets` (~35 tokens)

Read a Base wallet's tickets for the active draw. This does not move funds.

Input parameters:

- `wallet_address` (string, required)

### `check_wallet_prizes` (~31 tokens)

Check whether a Base wallet has an outstanding failed automatic prize payout.

Input parameters:

- `wallet_address` (string, required)

### `get_or_create_referral` (~54 tokens)

Create or retrieve a free referral ID tied to an EVM payout wallet. No funds move and the wallet cannot later be replaced by this tool.

Input parameters:

- `agent_id`
- `wallet_address` (string, required)

### `prepare_ticket_purchase` (~95 tokens)

Prepare exactly one unsigned 1-USDC Base ticket purchase. It never signs or broadcasts. Obtain owner approval or apply a narrow owner policy before submitting returned wallet transactions.

Input parameters:

- `agent_id`
- `idempotency_key` (string, required)
- `max_price_usdc` (string)
- `numbers` (array, required)
- `referral_id`
- `valid_until`
- `wallet_address` (string, required)

### `confirm_ticket_purchase` (~60 tokens)

Verify the Base receipt, sender, contract, method, and TicketPurchased event. This is the only completion check.

Input parameters:

- `agent_id`
- `execution_id`
- `tx_hash` (string, required)
- `wallet_address` (string, required)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-blocklottos-blocklottos/blocklottos-mcp#diagnostics

## Score history

- 2026-09-21: 67
- 2026-09-20: 67
- 2026-09-19: 66
- 2026-09-18: 66
- 2026-09-17: 65
- 2026-09-16: 62
- 2026-09-15: 62
- 2026-09-14: 62
- 2026-09-13: 62
- 2026-09-12: 62
- 2026-09-11: 62
- 2026-09-10: 62

## Common questions

### What is the Block Lottos MCP server?

Block Lottos is an MCP server listed in the public MCP registry as com.blocklottos/blocklottos. Safe Block Lottos MCP for Base tickets and Base or Polygon jackpot reads. This page covers its PyPI package (blocklottos-mcp).

### Is the Block Lottos MCP server safe to use?

Block Lottos scores 67 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. 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 Block Lottos MCP server expose?

Block Lottos exposes 10 tools: get_capabilities, get_jackpot, get_stats, get_draw_history, get_draw_proof, and 5 more. Their descriptions and schemas cost roughly 449 tokens of context every time the server is loaded.

### Is the Block Lottos MCP server still maintained?

Block Lottos 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

- PyPI project: https://pypi.org/project/blocklottos-mcp/
- Socket report: https://socket.dev/pypi/package/blocklottos-mcp
- Changelog RSS feed: https://verifymcp.io/servers/com-blocklottos-blocklottos/blocklottos-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-blocklottos-blocklottos/blocklottos-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-blocklottos-blocklottos/blocklottos-mcp