OPC UA MCP Server vs Server Everything
A side-by-side look at the OPC UA MCP Server and Server Everything MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose OPC UA MCP Server for industrial & iot work over a hosted endpoint; choose Server Everything for other tools and integrations as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose OPC UA MCP Server when
- You need dedicated capabilities in the Industrial & IoT domain.
- You prefer a remote HTTP/SSE transport.
- You want tools like
opcua_read, opcua_write, opcua_get_value.
Choose Server Everything when
- You need dedicated capabilities in the Other Tools and Integrations domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
echo, get-annotated-message, get-env.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Industrial & IoT | Other Tools and Integrations |
| Quality signal | 53/100 · Good | 73/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 5 | 91,550 |
| Directory activity | 4 views 0 installs 0 upvotes | 10 views 0 installs 0 upvotes |
| Tools | 16 | 16 |
| Full listing | View OPC UA MCP Server | View Server Everything |
Tools & capabilities
OPC UA MCP Server tools 16
opcua_readRead one or more node values. Subscribed nodes are served from the live cache; others go live unless `max_age_ms` allows a cached value.opcua_writeWrite a value to a node. Validates the value's type against the node before writing.opcua_get_valueRead a single node's value - a convenience wrapper over `opcua_read`.opcua_get_value_by_nameRead a value by browse name instead of node ID, via the discovery index.opcua_browseList a node's immediate children.opcua_browse_nodesRecursively browse from a node up to a depth limit, nesting children under their parent.opcua_node_infoGet a node's metadata (data type, access level, etc.).opcua_find_similar_nodesFuzzy-match browse names against the discovery index.opcua_subscribeStart push-based updates for one or more nodes at a given interval.opcua_unsubscribeCancel a subscription, by ID or by naming one of its nodes.opcua_list_subscriptionsList active subscriptions.opcua_connectManage the connection explicitly (mainly relevant in stdio mode).- +4 more on the listing page
Server Everything tools 16
echoEchoes back the input stringget-annotated-messageDemonstrates how annotations can be used to provide metadata about content.get-envReturns all environment variables, helpful for debugging MCP server configurationget-header-paramsReturns its region argument and the Mcp-Param-Region HTTP header it arrived in. Demonstrates x-mcp-header (a 2026-07-28 Streamable HTTP client mirrors the argument into the header) and JSON Schema 2020-12 input and output schemas.get-resource-linksReturns up to ten resource links that reference different types of resourcesget-resource-referenceReturns a resource reference that can be used by MCP clientsget-structured-contentReturns structured content along with an output schema for client data validationget-sumReturns the sum of two numbersget-tiny-imageReturns a tiny MCP logo image.gzip-file-as-resourceCompresses a single file using gzip compression. Depending upon the selected output type, returns either the compressed data as a gzipped resource or a resource link, allowing it to be downloaded in a subsequent request: during the current session for a 2025-era client, or for ten minutes at a minted URI on protocol version 2026-07-28.trigger-list-changedSends a notifications/<list>/list_changed for the tool, prompt or resource list. On protocol version 2026-07-28 it is delivered on each subscriptions/listen stream that asked for that list; a 2025-era client receives it unsolicited.trigger-log-messagesSends one log message at each logging level during the call. On protocol version 2026-07-28 only the messages at or above the level the request names in _meta (io.modelcontextprotocol/logLevel) are sent, and none if it names no level; a 2025-era client gets those at or above the level it set with logging/setLevel. Deprecated: logging is deprecated as of protocol version 2026-07-28.- +4 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
OPC UA MCP Server
{
"mcpServers": {
"opc-ua-mcp-server": {
"url": "https://xyz.trycloudflare.com/mcp"
}
}
}
Server Everything
{
"mcpServers": {
"modelcontextprotocol-server-everything": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-everything"
]
}
}
}
Frequently asked questions
OPC UA MCP Server is categorized under Industrial & IoT and uses a remote HTTP/SSE transport. Server Everything belongs to Other Tools and Integrations and uses a local stdio subprocess. Pick OPC UA MCP Server for industrial & iot work and Server Everything for other tools and integrations.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
OPC UA MCP Server has no declared pricing — check the project's own site. Server Everything is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add opc-ua-mcp-server and modelcontextprotocol-server-everything as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, OPC UA MCP Server has a quality signal of 53/100 (Good) with 4 views, 0 installs and 5 GitHub stars. Server Everything has 73/100 (Great) with 10 views, 0 installs and 91,550 GitHub stars.