# io.github.RubenTay/agent-vending-factory (remote · agent-vending-factory-3srpjtr7na-ew.a.run.app)

Pay-per-call MCP tools via x402 USDC: ZAR prices, data extraction, Python sandbox, SA flights.

- Trust score: 65/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `agent-vending-factory-3srpjtr7na-ew.a.run.app`: 65/100 (this document), [markdown](https://verifymcp.io/servers/rubentay-agent-vending-factory/agent-vending-factory-3srpjtr7na-ew.md), [page](https://verifymcp.io/servers/rubentay-agent-vending-factory/agent-vending-factory-3srpjtr7na-ew)

## Channel facts

- Endpoint: `https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## 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 2026-08-03.

- **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 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 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**: 65/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1240 tokens (~206/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**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http rubentay-agent-vending-factory https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp
```

### Codex

```toml
[mcp_servers.rubentay-agent-vending-factory]
url = "https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "rubentay-agent-vending-factory": {
      "type": "remote",
      "url": "https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add rubentay-agent-vending-factory --url https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  rubentay-agent-vending-factory:
    url: "https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp"
```

### Other

```json
{
  "mcpServers": {
    "rubentay-agent-vending-factory": {
      "type": "http",
      "url": "https://agent-vending-factory-3srpjtr7na-ew.a.run.app/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.

### 2026-08-03 (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.

### 2026-08-01 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 63, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 63, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (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.

### 2026-07-28 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 61, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 61)

First indexed and scored.

## MCP tools (6)

### `agent_example` (~131 tokens)

POST /agents/agent_example/run — Single-turn Claude Sonnet inference endpoint. Input: {question: string, max_tokens: integer (default 1024)}. Output: {success, answer, usage: {input_tokens, output_tokens}, error}. No tool use or agentic loop — direct model call. Use for QA, summarisation, or classification tasks. Cost: $0.0100 USDC per call.

Input parameters:

- `max_tokens` (integer): Maximum tokens for the response (default: 1024)
- `question` (string, required): The question or task for the agent to reason about

### `tool_example` (~68 tokens)

POST /tools/tool_example/run — Stateless text utility for testing x402 payment flows. Input: {text: string}. Output: {original, uppercase, word_count, char_count}. Cost: $0.0010 USDC per call.

Input parameters:

- `text` (string, required): Input text to process

### `tool_zar_prices` (~166 tokens)

POST /tools/zar-prices/run — Returns live bid/ask/last prices for crypto/ZAR pairs. Input: {pair: 'BTC/ZAR'|'ETH/ZAR'|'SOL/ZAR'|'USDC/ZAR'|'all'}. Output: array of {exchange, pair, price, bid, ask, timestamp} objects. Sources: VALR (all 4 pairs), Luno (BTC/ZAR + ETH/ZAR only). SOL/ZAR and USDC/ZAR are VALR-only. Fetches all exchanges concurrently. Timestamps are ISO-8601 UTC. Cost: $0.0050 USDC per call.

Input parameters:

- `pair` (string): Trading pair to fetch. Use 'all' to fetch every supported pair concurrently.

### `tool_data_transformer` (~271 tokens)

POST /tools/tool_data_transformer/run — Extracts structured JSON from raw text using a caller-supplied JSON Schema. Input: {raw_text: string, target_json_schema: object (JSON Schema draft-07)}. Output: {success, extracted_data, extraction_method, validation_passed, error}. extraction_method is one of: 'direct_parse', 'embedded_json', 'regex_extraction'. No LLM involved — pure parsing pipeline. Type coercion applied for integer/number/boolean fields. Works best with flat schemas; deeply nested structures extract less reliably via key-value pass. Cost: $0.0500 USDC per call.

Input parameters:

- `raw_text` (string, required): Unstructured or semi-structured text to extract data from. Examples: API response body, email content, log lines, form submissions, scraped web pages, or any text that contains the values you need.
- `target_json_schema` (object, required): A JSON Schema object describing the expected output structure. Define 'properties' with a 'type' for each field you want extracted, and list required fields under 'required'. Example: {"type": "objec…

### `tool_compute_sandbox` (~298 tokens)

POST /tools/tool_compute_sandbox/run — Executes Python 3.12 code in an isolated subprocess with a 5-second hard timeout. Input: {python_code: string, input_data: any (optional, bound as variable 'input_data')}. Output: {success, result, stdout (capped 50KB), execution_time_ms, error_type}. Return value: assign to 'result' variable. Pre-loaded: math, json, re, statistics, itertools, functools, collections, decimal, datetime, random, hashlib, base64. Blocked: import, open(), eval(), exec(), os, sys, network, class definitions, dunder attributes. error_type values: syntax_error | security_error | runtime_error | timeout_error. Cost: $0.1500 USDC per call.

Input parameters:

- `input_data`: JSON-serializable value (dict, list, str, number, bool, or null) passed as the variable 'input_data' inside the sandbox. Omit or pass null if the code has no external input.
- `python_code` (string, required): Python 3.12 source code to execute. No import statements. Set 'result = <value>' to return a value. Pre-loaded modules are in scope: math, json, re, statistics, itertools, functools, collections, dec…

### `tool_sa_airport_oracle` (~306 tokens)

POST /tools/sa-airport-oracle/run — Returns live flight status from ACSA (airports.co.za). Input: {airport_code: 'JNB'|'CPT'|'DUR', flight_number: string, request_type: 'arrival'|'departure'}. Output: {success, live_status, scheduled_time, estimated_time, actual_time, gate, carousel, terminal, flight_number, airport_code, request_type, error}. Coverage: JNB (O.R. Tambo), CPT (Cape Town Int'l), DUR (King Shaka). Data window: flights within 48 hours. Call GET /tools/sa-airport-oracle/health (free) first — if structure_valid=false, do not proceed. error_type values: 'stale_data' (do not retry), 'not found' (retry after 10-15 min), network error (retry once). flight_number is case-insensitive and normalised to uppercase internally. Read-only — no booking/ticketing. Cost: $0.1200 USDC per call.

Input parameters:

- `airport_code` (string, required): IATA airport code. JNB=O.R. Tambo (Johannesburg), CPT=Cape Town, DUR=King Shaka (Durban).
- `flight_number` (string, required): IATA flight number, e.g. 'SA322'. Case-insensitive.
- `request_type` (string, required): Search the arrivals board or departures board.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/rubentay-agent-vending-factory/agent-vending-factory-3srpjtr7na-ew#diagnostics

## Score history

- 2026-08-03: 65
- 2026-08-02: 64
- 2026-08-01: 64
- 2026-07-31: 63
- 2026-07-30: 63
- 2026-07-29: 63
- 2026-07-28: 62
- 2026-07-27: 61
- 2026-07-26: 61

## Links

- Remote endpoint: https://agent-vending-factory-3srpjtr7na-ew.a.run.app/mcp
- Repository: https://github.com/RubenTay/agent-vending-factory
- Changelog RSS feed: https://verifymcp.io/servers/rubentay-agent-vending-factory/agent-vending-factory-3srpjtr7na-ew/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/rubentay-agent-vending-factory/agent-vending-factory-3srpjtr7na-ew/changelog.json
- HTML version of this page: https://verifymcp.io/servers/rubentay-agent-vending-factory/agent-vending-factory-3srpjtr7na-ew