# AISub (remote · aisub.yuanwu.ai)

ChatGPT, Claude, Gemini, Perplexity and Grok subscription prices by country, with price history.

- Trust score: 70/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `aisub.yuanwu.ai`: 70/100 (this document), [markdown](https://verifymcp.io/servers/ai-yuanwu-aisub/aisub.md), [page](https://verifymcp.io/servers/ai-yuanwu-aisub/aisub)

## Channel facts

- Endpoint: `https://aisub.yuanwu.ai/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**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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**: 56/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1553 tokens (~258/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**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 96/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 87% 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 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 current MCP spec version (2026-07-28).

## Install

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

AISub is a hosted endpoint at https://aisub.yuanwu.ai/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 ai-yuanwu-aisub 'https://aisub.yuanwu.ai/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-yuanwu-aisub": {
      "url": "https://aisub.yuanwu.ai/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-yuanwu-aisub": {
      "type": "http",
      "url": "https://aisub.yuanwu.ai/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-yuanwu-aisub]
url = "https://aisub.yuanwu.ai/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add ai-yuanwu-aisub --url 'https://aisub.yuanwu.ai/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-yuanwu-aisub:
    url: "https://aisub.yuanwu.ai/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-yuanwu-aisub": {
      "Transport": "http",
      "Url": "https://aisub.yuanwu.ai/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-yuanwu-aisub -t streamable-http -u 'https://aisub.yuanwu.ai/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ai-yuanwu-aisub": {
      "type": "http",
      "url": "https://aisub.yuanwu.ai/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 70, 0)

- [cosmetic] “compare_credits” reworded the description of “product”
- [cosmetic] “compare_prices” reworded the description of “product”
- [cosmetic] “get_price_history” reworded the description of “product”
- [cosmetic] “get_region_prices” reworded the description of “product”
- [cosmetic] “list_catalog” reworded the description of “product”

### 2026-11-04 (score 70, +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.

### 2026-11-01 (score 69, +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.

### 2026-10-31 (score 68, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-30 (score 68)

First indexed and scored.

## MCP tools (6)

### `list_catalog` (~155 tokens)

List products, plans and regions

List the AI subscription products, sales channels, plan keys, billing intervals and regions that AISub tracks. Call without arguments for an overview; pass a product (and optionally a channel) to also get its region codes and the currencies available for conversion. Use the returned plan keys and region codes with the other tools.

Input parameters:

- `channel` (string): Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.
- `locale` (string): Language for region and plan names: en (default) or zh.
- `product`: Product key returned by list_catalog, including dynamically registered app_<apple-id> products.

Output parameters:

- `products` (array)

### `compare_prices` (~364 tokens)

Compare a plan's price across regions

Rank the price of one subscription plan (e.g. ChatGPT Plus, Claude Pro, Google AI Pro) across countries and regions, converted to one currency. Answers questions like "where is ChatGPT Plus cheapest?" or "how much is Claude Pro in Turkey?". Prices are monthly equivalents; for yearly billing the full-year total is also given. Each response includes when the prices and exchange rates were last updated.

Input parameters:

- `channel` (string): Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.
- `currency` (string): ISO 4217 currency for converted reference prices, e.g. USD, CNY, EUR. Defaults to USD for en and CNY for zh.
- `interval` (string): Billing interval: month (default) or year.
- `limit` (integer): Rows per page, 1–50.
- `locale` (string): Language for region and plan names: en (default) or zh.
- `page` (integer)
- `plan` (string): Plan key from list_catalog, e.g. plus, pro, business (ChatGPT), claude_pro, gemini_ai_pro, perplexity_pro, supergrok. Defaults to the product's main plan.
- `product`: Product key returned by list_catalog, including dynamically registered app_<apple-id> products.
- `region` (string): Optional filter by region code, name or currency, e.g. JP, Japan, 日本, EUR.
- `sort` (string): asc: cheapest first (default); desc: most expensive first; name: alphabetical.
- `tax` (string): Only regions whose reference price has this tax label.

Output parameters:

- `channel` (string)
- `currency` (string)
- `dataUpdatedAt` (string|null)
- `fxStale` (boolean)
- `fxUpdatedAt` (string|null)
- `interval` (string)
- `notes` (array)
- `oldestQuoteUpdatedAt` (string|null)
- `page` (integer)
- `plan` (string)
- `planName` (string)
- `product` (string)
- `rows` (array)
- `staleQuotes` (integer)
- `summary` (object)
- `totalPages` (integer)
- `unit` (string)
- `url` (string)

### `get_region_prices` (~178 tokens)

All plan prices in one region

Show every plan price of one product in one country or region, for each sales channel and billing interval, with its rank among all regions and its difference from the United States. Answers questions like "how much does ChatGPT cost in Japan?" or "is Claude cheaper in India than in the US?".

Input parameters:

- `currency` (string): ISO 4217 currency for converted reference prices, e.g. USD, CNY, EUR. Defaults to USD for en and CNY for zh.
- `locale` (string): Language for region and plan names: en (default) or zh.
- `product`: Product key returned by list_catalog, including dynamically registered app_<apple-id> products.
- `region` (string, required): Country or region as an ISO 3166 code (JP), English name (Japan) or Chinese name (日本).

Output parameters:

- `currency` (string)
- `dataUpdatedAt` (string|null)
- `fxUpdatedAt` (string|null)
- `missing` (array)
- `notes` (array)
- `prices` (array)
- `product` (string)
- `region` (object)
- `url` (string|null)

### `get_price_history` (~235 tokens)

Price change history

List the recorded price changes of one plan in one region, newest first, with the previous and new local price. Use it for questions like "has ChatGPT Plus gotten more expensive in Brazil?".

Input parameters:

- `channel` (string): Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.
- `interval` (string): Billing interval: month (default) or year.
- `limit` (integer)
- `locale` (string): Language for region and plan names: en (default) or zh.
- `plan` (string): Plan key from list_catalog, e.g. plus, pro, business (ChatGPT), claude_pro, gemini_ai_pro, perplexity_pro, supergrok. Defaults to the product's main plan.
- `product`: Product key returned by list_catalog, including dynamically registered app_<apple-id> products.
- `region` (string, required): Country or region as an ISO 3166 code (JP), English name (Japan) or Chinese name (日本).

Output parameters:

- `changes` (array)
- `channel` (string)
- `interval` (string)
- `plan` (string)
- `planName` (string)
- `product` (string)
- `region` (object)
- `trackedSince` (string|null): Earliest observation AISub retains for this series; no changes before it are known.
- `url` (string)

### `get_recent_price_changes` (~100 tokens)

Recent price changes

List monthly subscription price changes AISub recorded across all regions in the last N days, newest first. Use it for questions like "which countries changed ChatGPT prices this month?".

Input parameters:

- `days` (integer): Look-back window in days, 1–90.
- `limit` (integer)
- `locale` (string): Language for region and plan names: en (default) or zh.
- `product`: Only changes for this product.

Output parameters:

- `changes` (array)
- `days` (integer)
- `total` (integer)
- `trackedSince` (string|null)
- `url` (string)

### `compare_credits` (~259 tokens)

Compare credit pack prices

Compare credit pack prices (extra usage credits sold on top of a subscription, such as ChatGPT credits) across regions, normalised to the price per 100 credits in one currency. Answers questions like "where are ChatGPT credits cheapest?".

Input parameters:

- `channel` (string): Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.
- `currency` (string): ISO 4217 currency for converted reference prices, e.g. USD, CNY, EUR. Defaults to USD for en and CNY for zh.
- `limit` (integer)
- `locale` (string): Language for region and plan names: en (default) or zh.
- `pack` (string): all (default), unit for single-credit prices, or a pack quantity such as 1000.
- `page` (integer)
- `product`: Product key returned by list_catalog, including dynamically registered app_<apple-id> products.
- `region` (string): Optional filter by region code or name.
- `sort` (string): price_asc: cheapest per 100 credits first (default); price_desc; region: alphabetical.

Output parameters:

- `availablePacks` (array)
- `channel` (string)
- `currency` (string)
- `dataUpdatedAt` (string|null)
- `fxUpdatedAt` (string|null)
- `matchingOffers` (integer)
- `pack` (string)
- `page` (integer)
- `product` (string)
- `rows` (array)
- `totalPages` (integer)
- `url` (string)

## Diagnostics

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

## Score history

- 2026-11-05: 70
- 2026-11-04: 70
- 2026-11-03: 69
- 2026-11-02: 69
- 2026-11-01: 69
- 2026-10-31: 68
- 2026-10-30: 68

## Common questions

### What is the AISub MCP server?

AISub is an MCP server listed in the public MCP registry as ai.yuanwu/aisub. ChatGPT, Claude, Gemini, Perplexity and Grok subscription prices by country, with price history. This page covers its hosted endpoint (https://aisub.yuanwu.ai/mcp).

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

AISub scores 70 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 AISub MCP server expose?

AISub exposes 6 tools: list_catalog, compare_prices, get_region_prices, get_price_history, get_recent_price_changes, compare_credits. Their descriptions and schemas cost roughly 1,291 tokens of context every time the server is loaded.

### Does the AISub MCP server require authentication?

No. We connected to AISub without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the AISub MCP server still maintained?

AISub 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://aisub.yuanwu.ai/mcp
- Repository: https://github.com/wujieshengzhang/aisub-mcp
- Website: https://aisub.yuanwu.ai/en/mcp
- Changelog RSS feed: https://verifymcp.io/servers/ai-yuanwu-aisub/aisub.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-yuanwu-aisub/aisub.json
- HTML version of this page: https://verifymcp.io/servers/ai-yuanwu-aisub/aisub