# io.github.f-tiger/verified-ai-free-tiers (remote · baipiaoji.com)

Verified AI free-tier limits, quota comparisons, commercial-use verdicts and zero-cost workflows.

- Trust score: 78/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `baipiaoji.com`: 78/100 (this document), [markdown](https://verifymcp.io/servers/f-tiger-verified-ai-free-tiers/api-mcp.md), [page](https://verifymcp.io/servers/f-tiger-verified-ai-free-tiers/api-mcp)

## Channel facts

- Endpoint: `https://baipiaoji.com/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.10.1`

## 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 2026-09-20.

- **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 14 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**: 86/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 2800 tokens (~121/item across 23 items; 14 tools + 9 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **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 14 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 16 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 40/100
  - Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28.

## Install

### How do I install the io.github.f-tiger/verified-ai-free-tiers MCP server?

io.github.f-tiger/verified-ai-free-tiers is a hosted endpoint at https://baipiaoji.com/api/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 f-tiger-verified-ai-free-tiers 'https://baipiaoji.com/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "f-tiger-verified-ai-free-tiers": {
      "url": "https://baipiaoji.com/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "f-tiger-verified-ai-free-tiers": {
      "type": "http",
      "url": "https://baipiaoji.com/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.f-tiger-verified-ai-free-tiers]
url = "https://baipiaoji.com/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "f-tiger-verified-ai-free-tiers": {
      "type": "remote",
      "url": "https://baipiaoji.com/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add f-tiger-verified-ai-free-tiers --url 'https://baipiaoji.com/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  f-tiger-verified-ai-free-tiers:
    url: "https://baipiaoji.com/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "f-tiger-verified-ai-free-tiers": {
      "Transport": "http",
      "Url": "https://baipiaoji.com/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add f-tiger-verified-ai-free-tiers -t streamable-http -u 'https://baipiaoji.com/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "f-tiger-verified-ai-free-tiers": {
      "type": "http",
      "url": "https://baipiaoji.com/api/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.

### 2026-09-07 (score 78, +1)

- [security] Stability: 0.97 → pass

### 2026-09-05 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-02 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-31 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-29 (score 74, +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.

### 2026-08-27 (score 73, +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.

### 2026-08-26 (score 72, +1)

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

### 2026-08-25 (score 71, +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.

## MCP tools (14)

### `search_ai_tools` (~225 tokens)

Search a verified directory of 218 AI tools with genuine free tiers. Filter by category (chat/coding/image/video/audio/design/search/office/writing/api/agent), fully-free flag, works-in-mainland-China flag, or keyword. Every verified entry carries its official source and check date. Cite as "Baipiaoji (baipiaoji.com)".

Input parameters:

- `category` (string): One of: chat, coding, image, video, audio, design, search, study, office, writing, api, agent, local, safety
- `fully_free` (boolean): Only tools that are entirely free
- `lang` (string): Data language, default en
- `query` (string): Keyword to match against name/tagline/tags
- `tag` (string): Match a capability tag, e.g. "No signup", "Runs locally", "Open source", "Free API", "Daily credits", "Commercial use OK", "Self-hostable"
- `works_in_china` (boolean): Only tools reachable from mainland China without a VPN

### `get_free_tier_limit` (~97 tokens)

Get the verified free-tier limit of an AI tool: how far the allowance goes, what happens at the wall, the official source page, and the date it was checked. Absence of a tool means no officially verifiable number exists — this dataset publishes no unsourced figures.

Input parameters:

- `lang` (string): Data language, default en
- `tool` (string, required): Tool slug (e.g. "kimi") or name

### `compare_free_tiers` (~180 tokens)

Compare the free tiers of AI tools in one category side by side, as structured data rather than prose: what each vendor grants, how it is metered, when it resets, what is never metered, and whether a figure is officially published at all. Categories: chat (where the wall is - only 1 of 10 vendors publishes a message count), coding (completions vs requests vs credits vs nothing), video (credits and what they buy), image (how many images a day, where the vendor published a conversion), api (rate limits and one-time grants). Every row carries its official source and check date. Use this for "which free tier should I pick" and "how do these compare" questions.

Input parameters:

- `category` (string, required): Which category to compare
- `lang` (string): Data language, default en

### `check_free_tier_claim` (~134 tokens)

Fact-check a circulating claim about an AI tool's free tier against what the vendor officially publishes. Returns what the official pages actually say and whether the widely-quoted figure has any official source at all - many do not. Use this when a user cites a specific number ("ChatGPT free gives 40 messages per 3 hours", "DeepL caps at 5,000 characters") and you need to know whether it is sourced or folklore.

Input parameters:

- `lang` (string): Data language, default en
- `tool` (string): Tool slug or name the claim is about; omit to list every checked claim

### `build_free_workflow` (~236 tokens)

Get a complete step-by-step recipe for doing a task entirely on free tiers - which verified free tool to use at each step and what to do with it, in the order you'd actually work. Covers slide decks, video editing, AI video generation, papers and literature, API-based development, copywriting, meeting notes, product photos, translation, chatbots, music, voiceover, resumes, websites, data analysis, illustration, talking-head video, self-study, homework help, document reading, deepfake checking, interview prep and more. Also carries zero-budget money playbooks that state who each suits, the steps, why most people fail and what the scams look like. Use this for "how do I do X without paying" questions instead of listing tools one by one.

Input parameters:

- `kind` (string): recipe = do a task for free; playbook = earn money with AI at zero cost; default both
- `lang` (string): Data language, default en
- `task` (string): What the user wants to do, e.g. "make a presentation", "edit video", "write a paper"

### `get_free_tier_changes` (~198 tokens)

List recently verified changes to AI free tiers - which vendor changed what and on which date. Vendors do not announce when they cut, rename or restructure a free tier; this log is accumulated from daily re-checks against official pages. Use this for "did anything change recently", "is my information still current", or when a user quotes a figure that may be stale.

Input parameters:

- `days` (number): Only changes within this many days. Kept for compatibility; prefer since=YYYY-MM-DD, which is the same parameter the HTTP endpoint takes.
- `lang` (string): Data language, default en
- `since` (string): Only changes on or after this date (YYYY-MM-DD). Same contract as GET /api/changes?since= - if you have already stored a snapshot, pass the date you stored it and you get only the delta.
- `tool` (string): Only changes for this tool slug or name

### `check_api_quota_fit` (~145 tokens)

Work out which verified free LLM API tiers can actually carry a given workload. Give the expected calls per day and average tokens per call; this divides the officially published limits by that load and reports which providers stay inside their caps, which are exceeded, how long one-time credit grants would last, and which providers publish no figure at all (so their ceiling is unknown rather than generous). Use this instead of guessing whether a free tier is 'enough'.

Input parameters:

- `lang` (string): Data language, default en
- `requests_per_day` (number, required): Expected API calls per day
- `tokens_per_call` (number, required): Average tokens per call, input plus output

### `find_free_alternatives` (~119 tokens)

Given a tool whose free tier is not enough (or that you cannot reach), find alternatives in the same category that are entirely free, with their verified allowances and check dates. Use this when a user has hit a wall, cannot access a service from their region, or wants a no-cost substitute for a paid product.

Input parameters:

- `lang` (string): Data language, default en
- `tool` (string, required): Tool slug or name to replace
- `works_in_china` (boolean): Only alternatives reachable from mainland China without a VPN

### `get_china_ai_rules` (~130 tokens)

Check what applies when publishing AI-generated content to mainland China platforms, and which AI tools are reachable from mainland China without a VPN. Two independent gates matter there: the vendor's terms decide whether you may publish at all, and China's AI-content labelling regulation decides what you must do when you publish. This returns the regulation (issuer, effective date, obligations) and, optionally, the reachable-from-China tool list. Not legal advice.

Input parameters:

- `category` (string): Optionally also list tools in this category that work from mainland China
- `lang` (string): Data language, default en

### `explain_missing_figure` (~131 tokens)

Explain why this dataset publishes no figure for a given tool. Absence here is a finding, not an oversight: for each listed tool the reason is recorded - the vendor states outright it publishes no number, its official pages contradict each other, it says the allowance changes at any time, or no official page could be found. Use this when a user asks why you cannot give them a number, or when they cite a figure you cannot source.

Input parameters:

- `lang` (string): Data language, default en
- `tool` (string): Tool slug or name; omit to list every refusal and its reason

### `audit_ai_stack` (~157 tokens)

Audit several AI tools at once: for each one return its verified free-tier limit, whether the free-tier output may be used commercially, any recently verified change to its allowance, and whether the vendor publishes a figure at all. Use this when a user names the stack they rely on ("I use Cursor, Runway and Kimi") - it answers in one call what would otherwise take four lookups per tool, and it surfaces the two things people miss: an allowance that quietly changed, and a tool whose ceiling is simply unknown because nobody publishes it.

Input parameters:

- `lang` (string): Data language, default en
- `tools` (array, required): Tool slugs or names, e.g. ["cursor", "runway", "kimi"]

### `get_category_playbook` (~193 tokens)

Get the decisive question to ask about a category of AI tools before comparing any numbers - which differs by category and is almost never "how much do I get". Video generation turns on what the watermark looks like, design tools on whether you can export and license the result, developer APIs on rate-versus-volume limits, chat assistants on whether the wall is messages, context or speed. Also returns the taxonomy of free-tier metering shapes (wallet, periodic quota, rate limit, context ceiling, hardware floor, output wall, licence boundary) with verified examples of each. Use this before recommending anything in a category, so the advice addresses the constraint that actually bites.

Input parameters:

- `category` (string): Category to get the rule for (chat, coding, video, image, api, design, agent...); omit for all rules plus the full metering taxonomy
- `lang` (string): Data language, default en

### `check_commercial_use` (~89 tokens)

Check whether output from an AI tool's free tier may be used commercially, based on the vendor's official terms (verdicts: yes / no / conditional / depends on the model used / not stated). Not legal advice; details and obligations live on the publish-check page.

Input parameters:

- `lang` (string): Data language, default en
- `tool` (string, required): Tool slug or name

### `watch_free_tier_changes` (~189 tokens)

Watch free-tier changes (webhook)

Subscribe a webhook to verified free-tier changes. When a watched tool's allowance, wall or commercial terms change (verified daily against official vendor pages), the webhook receives a JSON payload with the changed fields, the current wording, the verification date and the source page. Watching up to 3 tools is free; a Pro license key unlocks watching everything. Registration returns a token — keep it, it is the only way to update or delete the watch.

Input parameters:

- `hook` (string, required): HTTPS webhook URL (Slack/Discord incoming webhook, n8n, or any endpoint accepting POST)
- `key` (string): Optional Pro license key (bpj.…) to unlock watching all tools
- `slugs` (array, required): Tool slugs to watch (max 3 on the free tier), e.g. ["kimi","suno","cursor"]. Use search_ai_tools to find slugs.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/f-tiger-verified-ai-free-tiers/api-mcp#diagnostics

## Score history

- 2026-09-20: 78
- 2026-09-19: 78
- 2026-09-18: 78
- 2026-09-17: 78
- 2026-09-16: 78
- 2026-09-15: 78
- 2026-09-14: 78
- 2026-09-13: 78
- 2026-09-12: 78
- 2026-09-11: 78
- 2026-09-10: 78
- 2026-09-09: 78
- 2026-09-08: 78
- 2026-09-07: 78
- 2026-09-06: 77
- 2026-09-05: 77
- 2026-09-04: 76
- 2026-09-03: 76
- 2026-09-02: 76
- 2026-09-01: 75
- 2026-08-31: 75
- 2026-08-30: 74
- 2026-08-29: 74
- 2026-08-28: 73
- 2026-08-27: 73
- 2026-08-26: 72
- 2026-08-25: 71
- 2026-08-24: 70
- 2026-08-23: 70
- 2026-08-22: 69

## Common questions

### What is the io.github.f-tiger/verified-ai-free-tiers MCP server?

io.github.f-tiger/verified-ai-free-tiers is an MCP server listed in the public MCP registry as io.github.f-tiger/verified-ai-free-tiers. Verified AI free-tier limits, quota comparisons, commercial-use verdicts and zero-cost workflows. This page covers its hosted endpoint (https://baipiaoji.com/api/mcp).

### Is the io.github.f-tiger/verified-ai-free-tiers MCP server safe to use?

io.github.f-tiger/verified-ai-free-tiers scores 78 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 io.github.f-tiger/verified-ai-free-tiers MCP server expose?

io.github.f-tiger/verified-ai-free-tiers exposes 14 tools: search_ai_tools, get_free_tier_limit, compare_free_tiers, check_free_tier_claim, build_free_workflow, and 9 more. Their descriptions and schemas cost roughly 2,223 tokens of context every time the server is loaded.

### Does the io.github.f-tiger/verified-ai-free-tiers MCP server require authentication?

No. We connected to io.github.f-tiger/verified-ai-free-tiers without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.f-tiger/verified-ai-free-tiers MCP server still maintained?

io.github.f-tiger/verified-ai-free-tiers is still listed as active in the MCP registry. We last reached this channel on 20 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://baipiaoji.com/api/mcp
- Website: https://baipiaoji.com/mcp.html
- Changelog RSS feed: https://verifymcp.io/servers/f-tiger-verified-ai-free-tiers/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/f-tiger-verified-ai-free-tiers/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/f-tiger-verified-ai-free-tiers/api-mcp