OPC UA MCP Server vs Hindsight

A side-by-side look at the OPC UA MCP Server and Hindsight MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

OPC UA MCP Server logoOPC UA MCP ServerIndustrial & IoT · Remote HTTP/SSERead, write, browse, search, and subscribe to live data on an OPC-UA industrial automation server.53GoodAuth: not declaredHindsight logoHindsightKnowledge & Memory · Local subprocess (stdio)Hindsight: Agent Memory That Works Like Human Memory - Built for AI Agents to manage Long Term Memory57GoodAuth: api key required

Verdict: choose OPC UA MCP Server for industrial & iot work over a hosted endpoint; choose Hindsight for knowledge & memory as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

OPC UA MCP Server logoChoose 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.
Explore OPC UA MCP Server

Hindsight logoChoose Hindsight when

  • You need dedicated capabilities in the Knowledge & Memory domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: HINDSIGHT_API_LLM_API_KEY, HINDSIGHT_API_LLM_PROVIDER, HINDSIGHT_DB_PASSWORD.
Explore Hindsight

Feature & specification comparison

Rows where the two servers differ are marked.

SpecOPC UA MCP Server logoOPC UA MCP ServerHindsight logoHindsight
CategoryIndustrial & IoTKnowledge & Memory
Quality signal53/100 · Good57/100 · Good
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredAPI key required
PricingNot declaredFree
Required env varsNone listedHINDSIGHT_API_LLM_API_KEYHINDSIGHT_API_LLM_PROVIDERHINDSIGHT_DB_PASSWORD
Verified ownerCommunity listingCommunity listing
GitHub stars553,599
Directory activity 4 views 0 installs 0 upvotes 15 views 0 installs 0 upvotes
Tools16Not listed

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

Hindsight tools

No tool names declared yet. Check the project README from 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 (Claude Desktop / Cursor)
{
  "mcpServers": {
    "opc-ua-mcp-server": {
      "url": "https://xyz.trycloudflare.com/mcp"
    }
  }
}

Hindsight

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "vectorize-io-hindsight": {
      "command": "npx",
      "args": [
        "-y",
        "@vectorize-io/hindsight-coding-agents"
      ],
      "env": {
        "HINDSIGHT_API_LLM_API_KEY": "YOUR_HINDSIGHT_API_LLM_API_KEY_HERE",
        "HINDSIGHT_API_LLM_PROVIDER": "YOUR_HINDSIGHT_API_LLM_PROVIDER_HERE",
        "HINDSIGHT_DB_PASSWORD": "YOUR_HINDSIGHT_DB_PASSWORD_HERE"
      }
    }
  }
}

Frequently asked questions

OPC UA MCP Server is categorized under Industrial & IoT and uses a remote HTTP/SSE transport. Hindsight belongs to Knowledge & Memory and uses a local stdio subprocess. Pick OPC UA MCP Server for industrial & iot work and Hindsight for knowledge & memory.

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. Hindsight is listed as free. Auth: api key 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 vectorize-io-hindsight 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. Hindsight has 57/100 (Good) with 15 views, 0 installs and 53,599 GitHub stars.