ac.tandem/docs-mcp
REMOTE · TANDEM.AC · SCANNED SEP 20
Remote MCP server for Tandem docs, install guides, SDKs, workflows, and agent setup help.
Available components
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 Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability85
- 98% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Partial
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1858 tokens (~29/item across 63 items; 13 tools + 50 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 13 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 15 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
How do I install the ac.tandem/docs-mcp server?
ac.tandem/docs-mcp is a hosted endpoint at https://tandem.ac/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 · tandem.ac
claude mcp add --transport http ac-tandem-docs-mcp 'https://tandem.ac/mcp'
{
"mcpServers": {
"ac-tandem-docs-mcp": {
"url": "https://tandem.ac/mcp"
}
}
} {
"servers": {
"ac-tandem-docs-mcp": {
"type": "http",
"url": "https://tandem.ac/mcp"
}
}
} [mcp_servers.ac-tandem-docs-mcp] url = "https://tandem.ac/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ac-tandem-docs-mcp": {
"type": "remote",
"url": "https://tandem.ac/mcp",
"enabled": true
}
}
} openclaw mcp add ac-tandem-docs-mcp --url 'https://tandem.ac/mcp' --transport streamable-http
mcp_servers:
ac-tandem-docs-mcp:
url: "https://tandem.ac/mcp" {
"McpServers": {
"ac-tandem-docs-mcp": {
"Transport": "http",
"Url": "https://tandem.ac/mcp"
}
}
} assistant mcp add ac-tandem-docs-mcp -t streamable-http -u 'https://tandem.ac/mcp'
{
"mcpServers": {
"ac-tandem-docs-mcp": {
"type": "http",
"url": "https://tandem.ac/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 20 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 19 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 18 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 17 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 16 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 15 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 14 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
- 13 Sept 26 0
- Resource “Overview” now points somewhere else: tandem-docs://stable/desktop/overview/ → tandem-docs://stable/incident-monitor/overview/ security
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 20 Sept 2026 · Probed https://tandem.ac/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=tandem.ac | CN=YE1,O=Let's Encrypt,C=US | 19 Sept 2026 | 18 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 6a47f81876c1f9f0dc9bb6933477bf9878c |
| SANs: *.tandem.ac, tandem.ac | ||||||
| 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 tandem.ac. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ac. | present | 42665 | 8 | Verified |
| tandem.ac. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://tandem.ac/mcp | Verified | 200 | |
| http (plaintext) | http://tandem.ac/mcp | HTTPS enforced | 308 | https://tandem.ac/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 →
answer_how_to ~126
Answer how to install or use Tandem, build workflows, or use the SDKs by synthesizing relevant published docs.
| Name | Type | Req | Description |
|---|---|---|---|
| audience | string | – | Optional audience hint such as developer, desktop user, or operator. |
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| engine_version | string | – | Optional Tandem engine version hint. Prefer stable docs for installed engines. |
| limit | integer | – | Maximum number of supporting docs recommendations to include. |
| task | string | yes | The Tandem task or question that needs a docs-grounded answer. |
No output schema declared.
No examples provided.
compare_doc_page_refresh ~72
Force-refresh a docs page and return before/after hashes so page content changes can be proven.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| path | string | yes | Docs path like /start-here/ or /sdk/python/ to compare before and after refresh. |
No output schema declared.
No examples provided.
compare_docs_index_refresh ~45
Force-refresh the docs indexes and return before/after hashes so content changes can be proven.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
No output schema declared.
No examples provided.
get_doc ~77
Fetch and normalize a published Tandem docs page by path or URL.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| engine_version | string | – | Optional Tandem engine version hint for compatibility checks. |
| path | string | yes | Docs path like /sdk/python/ or a full Tandem docs URL. |
No output schema declared.
No examples provided.
get_docs_cache_status ~23
Inspect the current docs cache state for index sources and warmed pages.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_start_path ~62
Recommend the best Tandem docs starting path for a desktop user, server admin, or developer.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| role | string | yes | The user role to optimize the docs starting point for. |
No output schema declared.
No examples provided.
get_tandem_guide ~71
Return a structured Tandem learning guide for install-engine, python-sdk, typescript-sdk, build-workflows, or headless-deploy.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| topic | string | yes | Named Tandem learning guide to return. |
No output schema declared.
No examples provided.
invalidate_docs_cache ~77
Invalidate docs cache entries for index data, all pages, or a specific page path.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Optional docs ref to scope page/index cache invalidation. |
| path | string | – | Required when target is page; identifies the specific docs path to invalidate. |
| target | string | – | Which cache area to invalidate. |
No output schema declared.
No examples provided.
recommend_next_docs ~101
Recommend the next Tandem docs to read after a current page, optionally biased toward a goal.
| Name | Type | Req | Description |
|---|---|---|---|
| current_path | string | yes | Current Tandem docs path the user has already read. |
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| goal | string | – | Optional goal such as install Tandem, use the Python SDK, or build workflows. |
| limit | integer | – | Maximum number of next-doc recommendations to return. |
No output schema declared.
No examples provided.
refresh_doc_page ~86
Force-refresh a docs page and report whether content came from the network, cache, or stale fallback.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| force_refresh | boolean | – | Whether to bypass cache and force a network refresh attempt. |
| path | string | yes | Docs path like /start-here/ or /sdk/python/ to refresh. |
No output schema declared.
No examples provided.
refresh_docs_index ~63
Force-refresh docs indexes and report whether data came from the network, cache, or stale fallback.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| force_refresh | boolean | – | Whether to bypass cache and force a network refresh attempt. |
No output schema declared.
No examples provided.
search_docs ~143
Search the published Tandem docs index for relevant pages.
| Name | Type | Req | Description |
|---|---|---|---|
| audience | string | – | Optional audience filter such as developer, desktop user, or operator. |
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. Use next, refs/<sha>, or releases/<version> only when explicitly needed. |
| engine_version | string | – | Optional Tandem engine version hint. If supplied without docs_ref, the MCP still defaults to stable unless a matching versioned docs ref is configured. |
| limit | integer | – | Maximum number of matching docs pages to return. |
| query | string | yes | The Tandem question, task, or keyword query to search for. |
No output schema declared.
No examples provided.
warmup_docs_cache ~62
Refresh the docs index and preload the most important Tandem docs pages into cache.
| Name | Type | Req | Description |
|---|---|---|---|
| docs_ref | string | – | Docs channel or immutable ref. Defaults to stable. |
| force_refresh | boolean | – | Whether to bypass cache and force fresh upstream fetches first. |
No output schema declared.
No examples provided.
What is the ac.tandem/docs-mcp server?
ac.tandem/docs-mcp is listed in the public MCP registry as ac.tandem/docs-mcp. Remote MCP server for Tandem docs, install guides, SDKs, workflows, and agent setup help. This page covers its hosted endpoint (https://tandem.ac/mcp).
Is the ac.tandem/docs-mcp server safe to use?
ac.tandem/docs-mcp scores 79 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 ac.tandem/docs-mcp server expose?
ac.tandem/docs-mcp exposes 13 tools: search_docs, get_doc, get_start_path, recommend_next_docs, answer_how_to, and 8 more. Their descriptions and schemas cost roughly 1,008 tokens of context every time the server is loaded.
Does the ac.tandem/docs-mcp server require authentication?
No. We connected to ac.tandem/docs-mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the ac.tandem/docs-mcp server still maintained?
ac.tandem/docs-mcp 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.