PLCs.ai
REMOTE · MCP.PLCS.AI · SCANNED AUG 26
Query Allen-Bradley and Siemens PLC projects, live tag values, and analyses in plain English.
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 →
Endpoint Security46
- 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 connect, but we couldn't read the tool list to see what that exposes. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 503, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- 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 & Reachability0
- Transport check failed: declared streamable-http, but the endpoint returned HTTP 503. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
How do I install the PLCs.ai MCP server?
PLCs.ai is a hosted endpoint at https://mcp.plcs.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.
remote · mcp.plcs.ai
claude mcp add --transport http ai-plcs-plcs-ai 'https://mcp.plcs.ai/mcp'
{
"mcpServers": {
"ai-plcs-plcs-ai": {
"url": "https://mcp.plcs.ai/mcp"
}
}
} {
"servers": {
"ai-plcs-plcs-ai": {
"type": "http",
"url": "https://mcp.plcs.ai/mcp"
}
}
} [mcp_servers.ai-plcs-plcs-ai] url = "https://mcp.plcs.ai/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ai-plcs-plcs-ai": {
"type": "remote",
"url": "https://mcp.plcs.ai/mcp",
"enabled": true
}
}
} openclaw mcp add ai-plcs-plcs-ai --url 'https://mcp.plcs.ai/mcp' --transport streamable-http
mcp_servers:
ai-plcs-plcs-ai:
url: "https://mcp.plcs.ai/mcp" {
"McpServers": {
"ai-plcs-plcs-ai": {
"Transport": "http",
"Url": "https://mcp.plcs.ai/mcp"
}
}
} assistant mcp add ai-plcs-plcs-ai -t streamable-http -u 'https://mcp.plcs.ai/mcp'
{
"mcpServers": {
"ai-plcs-plcs-ai": {
"type": "http",
"url": "https://mcp.plcs.ai/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.
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 21 Aug 26 −18
- Transport: unverified → fail ▼ security
- Authorization: pass → unverified ▼ security
- HTTPS: pass → unverified ▼ security
- Tool coverage: Tool coverage not yet verified: we couldn't read the endpoint's tools. functional
- Capabilities: Capabilities not yet verified: we couldn't read the endpoint's capabilities. functional
- Schema quality: Schema not yet verified: we couldn't read the endpoint's schema. functional
- 11 Aug 26 36
First indexed and scored.
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 26 Aug 2026 · Probed https://mcp.plcs.ai/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.plcs.ai | CN=WR3,O=Google Trust Services,C=US | 19 Aug 2026 | 18 Nov 2026 | RSA 2048 | SHA256-RSA | 9cf912757ea23ef209f78dec8d29c857 |
| SANs: mcp.plcs.ai | ||||||
| CN=WR3,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7ff005a91568d63abc22861684aa4b5a |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
DNSSEC insecure
Validation of mcp.plcs.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 3799 | 8 | Verified |
| plcs.ai. | 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 | 503 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.plcs.ai/mcp | HTTP error | 503 | |
| http (plaintext) | http://mcp.plcs.ai/mcp | Inconclusive | 503 |
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.
No tool schema has been captured from this endpoint yet.
What is the PLCs.ai MCP server?
PLCs.ai is an MCP server listed in the public MCP registry as ai.plcs/plcs-ai. Query Allen-Bradley and Siemens PLC projects, live tag values, and analyses in plain English. This page covers its hosted endpoint (https://mcp.plcs.ai/mcp).
Is the PLCs.ai MCP server safe to use?
PLCs.ai scores 18 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.
Does the PLCs.ai MCP server require authentication?
No. We connected to PLCs.ai without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the PLCs.ai MCP server still maintained?
PLCs.ai is still listed as active in the MCP registry. We last reached this channel on 26 August 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.