TANDIU AI infrastructure data
REMOTE · WWW.TANDIU.CN
Free, no auth. Daily CN AI infra: LLM prices, index, trends, GPU, estimators, agents, PC, funding.
Available components
Last scanned (10 hours ago)
Scores higher than 81% of remote servers
Reachable. Last reached 5 Nov 2026.
Category AI and Machine Learning
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability60
- AI-judged instruction clarity (fair).Partial
- Context-footprint check failed: tool/resource definitions use about 1797 tokens (~112/item across 16 items; 16 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management87
- Stability observed for 26 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage77
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 31% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 16 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 17 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +3
- HSTS header: fail → pass ▲ security
- 31 Oct 26 +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.
- 30 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Schema quality: 1560 → 1797 ▼ functional
- New tool “find_mcp” functional
- New tool “get_mcp_changes” functional
- 29 Oct 26 +1
- Tool “list_gpu_prices” rewrote its description, which is the text the model reads security
- 27 Oct 26 +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.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://www.tandiu.cn/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.tandiu.cn | CN=YE1,O=Let's Encrypt,C=US | 26 Oct 2026 | 24 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 660a778c29cc32446beaa9a89fc9625a2fe |
| SANs: www.tandiu.cn | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of www.tandiu.cn. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| cn. | present | 33094 | 8 | Verified |
| tandiu.cn. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000 |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.tandiu.cn/mcp | Verified | 200 | |
| http (plaintext) | http://www.tandiu.cn/mcp | HTTPS enforced | 308 | https://www.tandiu.cn/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
about_tandiu_data Overview of TANDIU datasets ~31
What data TANDIU publishes, refresh cadence, price basis and how to cite. Call first.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
cheapest_model_for_score Cheapest model at a benchmark score ~66
Cheapest models whose benchmark score meets a threshold (absolute or percent of the best score).
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | – |
| limit | integer | – | – |
| metric | string | – | – |
| min_percent_of_top | number | – | – |
| min_score | number | – | – |
No output schema declared.
No examples provided.
estimate_enterprise_ai_cost Enterprise AI infrastructure cost ~165
Monthly AI cost for 10 / 100 / 1,000 / 10,000-person company samples across industries: API (per-role model choice, or the open model's official API) vs self-hosting the same open model on public cloud, private cloud or on-premises GPUs, with GPU count and cost per 1M tokens.
| Name | Type | Req | Description |
|---|---|---|---|
| headcount | integer | – | – |
| include_gpu_breakdown | boolean | – | self-hosting cost on every GPU for each sample |
| include_hardware_table | boolean | – | per-GPU unit economics (throughput, hardware price, cost per 1M tokens) |
| include_team | boolean | – | – |
| query | string | – | industry or sample, e.g. bank, hospital, ecommerce |
No output schema declared.
No examples provided.
estimate_role_token_budget Token budget per job role ~92
Monthly token usage and cost for 32 common job roles at light / standard / heavy AI usage, with the best model (any country) and the best Chinese model that meet each role's capability floor.
| Name | Type | Req | Description |
|---|---|---|---|
| group | string | – | – |
| limit | integer | – | – |
| query | string | – | role id or name, e.g. backend, lawyer, doctor |
| usage | string | – | – |
No output schema declared.
No examples provided.
estimate_self_hosting Self-hosting sizing ~106
VRAM, GPUs needed, single-stream and batched throughput, hardware cost and the vendor's official API price/speed for self-hosting an open-weights model. Omit model to list available models.
| Name | Type | Req | Description |
|---|---|---|---|
| gpus | array | – | gpu ids from list_gpu_prices, e.g. h100_sxm, h20, ascend910b, rtx_pro_6000, rtx5090, rtx5090d |
| model | string | – | – |
No output schema declared.
No examples provided.
find_mcp Big Tech MCP Access Tracker ~143
Official MCP servers of major US / Chinese / regional companies (payments, maps, finance data, collaboration, cloud, model platforms): transport, auth barrier, account requirements, pricing model, free quota (doc wording), daily cross-border reachability measured by TANDIU (China<->US handshake; evidence=probe), listing on MCP Registry / Claude directory. Facts only, no scores.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| cross_border | string | – | – |
| limit | integer | – | – |
| pricing_model | string | – | – |
| query | string | – | vendor or product substring, e.g. stripe, 高德 |
| region | string | – | – |
No output schema declared.
No examples provided.
get_llm_price_history LLM official price history (Pro) ~120
Pro (API key required): daily official list-price history per model since July 2026, USD and RMB per 1M tokens, with source URLs. Filter by model, vendor, country and date range.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | – |
| limit | integer | – | – |
| model | string | – | model key or name substring, e.g. gpt-5.6, deepseek |
| since | string | – | YYYY-MM-DD |
| until | string | – | YYYY-MM-DD |
| vendor | string | – | – |
No output schema declared.
No examples provided.
get_mcp_changes Big Tech MCP access change events ~68
Append-only change events of tracked official MCP servers (terms/pricing pages, cross-border reachability, tools, status, directory listing) for the last N days, optionally for one entry id from find_mcp.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | – |
| entry_id | string | – | – |
No output schema declared.
No examples provided.
get_price_index LLM price index ~50
Chain-linked LLM price index (CN, US or all models), 30-day change, median price and series.
| Name | Type | Req | Description |
|---|---|---|---|
| group | string | – | – |
| since | string | – | YYYY-MM-DD |
No output schema declared.
No examples provided.
list_ai_funding AI funding rounds ~120
Funding rounds of AI companies (mainly US and China): company, business, round, amount, valuation, investors, source links. Newest first; filter by region, sector, company/investor name, date or minimum amount.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| min_amount_usd | number | – | – |
| query | string | – | company, product or investor name |
| region | string | – | – |
| sector | string | – | – |
| since | string | – | YYYY-MM-DD |
| sort_by | string | – | – |
No output schema declared.
No examples provided.
list_cloud_agents Cloud agents compared ~51
Cloud agents (one persistent agent per person, team agents, hosting platforms) with specs and monthly prices.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | – | – |
| limit | integer | – | – |
| query | string | – | – |
No output schema declared.
No examples provided.
list_gpu_prices GPU prices and specs ~172
Data-center, workstation and consumer GPUs (B300/B200/H200/H100/H20, Ascend 910B/910C, RTX PRO 6000/5500/5000, RTX 5090/5090D/4090D, L40S/L20): VRAM, bandwidth, FP16 compute, list price, China market price (SXM GPUs per 8-GPU node), cloud rental with 7-day change and daily median history (since 2026-10-18; few_samples flags thin markets), sources and dates.
| Name | Type | Req | Description |
|---|---|---|---|
| china_available_only | boolean | – | – |
| query | string | – | gpu id or name substring, e.g. h20, rtx pro 6000, 910 |
| with_cloud_rental | boolean | – | – |
No output schema declared.
No examples provided.
list_llm_prices LLM API prices and benchmarks ~96
Official API list prices (USD per 1M tokens) with Artificial Analysis, LiveBench 2.0 and Epoch AI scores for major US and Chinese LLMs. Filter and sort.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | US, CN or another ISO code |
| limit | integer | – | – |
| query | string | – | substring of model name |
| sort_by | string | – | – |
| vendor | string | – | – |
No output schema declared.
No examples provided.
list_overseas_listings Chinese LLMs on overseas platforms ~165
Where Chinese open models (DeepSeek, Qwen, GLM, Kimi, MiniMax, ...) are listed on platforms headquartered outside mainland China: hosting type, regions, input/output/blended USD per 1M tokens vs the official price, context, tool calling, data-policy links. Labs ranked by Hugging Face followers, models by downloads and likes.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| max_blended_usd | number | – | max blended USD per 1M tokens |
| model | string | – | model name or key substring, e.g. deepseek v4 pro, kimi, glm-5 |
| platform | string | – | platform name substring, e.g. together, bedrock |
| tool_calling | boolean | – | – |
No output schema declared.
No examples provided.
list_price_changes Recorded LLM price changes ~59
Official list-price cuts/increases observed in daily snapshots, and models newly added to tracking.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| min_change_pct | number | – | – |
| since | string | – | YYYY-MM-DD, default last 90 days |
No output schema declared.
No examples provided.
recommend_coding_pc Computers for AI coding agents ~59
Relative speed and tier (best/recommended/minimum/not_advised) of Macs, laptops and desktops for running Codex / Claude Code.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| query | string | – | – |
| tier | string | – | – |
No output schema declared.
No examples provided.
How do I install the TANDIU AI infrastructure data MCP server?
TANDIU AI infrastructure data is a hosted endpoint at https://www.tandiu.cn/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.
remote · www.tandiu.cn
claude mcp add --transport http cn-tandiu-data 'https://www.tandiu.cn/mcp'
What is the TANDIU AI infrastructure data MCP server?
TANDIU AI infrastructure data is an MCP server listed in the public MCP registry as cn.tandiu/data. Free, no auth. Daily CN AI infra: LLM prices, index, trends, GPU, estimators, agents, PC, funding. This page covers its hosted endpoint (https://www.tandiu.cn/mcp).
Is the TANDIU AI infrastructure data MCP server safe to use?
TANDIU AI infrastructure data scores 80 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 TANDIU AI infrastructure data MCP server expose?
TANDIU AI infrastructure data exposes 16 tools: about_tandiu_data, list_llm_prices, cheapest_model_for_score, get_price_index, get_llm_price_history, and 11 more. Their descriptions and schemas cost roughly 1,563 tokens of context every time the server is loaded.
Does the TANDIU AI infrastructure data MCP server require authentication?
No. We connected to TANDIU AI infrastructure data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the TANDIU AI infrastructure data MCP server still maintained?
TANDIU AI infrastructure data 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.