Drug Interaction Checker vs Candor

A side-by-side look at the Drug Interaction Checker and Candor MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Drug Interaction Checker logoDrug Interaction CheckerBiology & Bioinformatics · Remote HTTP/SSEDrug-drug interaction checker for clinical LLMs using RxNorm and DailyMed.43FairAuth: not declaredCandor logoCandorBiology & Bioinformatics · Local subprocess (stdio)Per-function effect analysis for agents: blast radius, what reaches the network, gate verdicts.45FairAuth: not declared

Verdict: choose Drug Interaction Checker for biology & bioinformatics work over a hosted endpoint; choose Candor for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Drug Interaction Checker logoChoose Drug Interaction Checker when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a remote HTTP/SSE transport.
  • You want tools like check_interaction, check_interactions_multi, normalize_drug_name.
Explore Drug Interaction Checker

Candor logoChoose Candor when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a local stdio subprocess transport.
Explore Candor

Feature & specification comparison

Rows where the two servers differ are marked.

SpecDrug Interaction Checker logoDrug Interaction CheckerCandor logoCandor
CategoryBiology & BioinformaticsBiology & Bioinformatics
Quality signal43/100 · Fair45/100 · Fair
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars01
Directory activity 2 views 0 installs 0 upvotes 2 views 0 installs 0 upvotes
Tools5Not listed

Tools & capabilities

Drug Interaction Checker tools 5

  • check_interactionCheck the interaction between two drugs. Severity, mechanism (when known), and source.
  • check_interactions_multiPairwise interaction check across a polypharmacy list (deduped A-B/B-A, max 28 pairs).
  • normalize_drug_nameResolve brand or generic name to RxNorm canonical record: RxCUI, generic, brands, synonyms.
  • dose_guideFDA-labeled dosing guidance from DailyMed.
  • find_alternativesDrugs in the same ATC therapeutic class.

Candor 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.

Drug Interaction Checker

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "drug-interaction-checker": {
      "url": "https://drug-interaction-mcp.atlasword.workers.dev/mcp"
    }
  }
}

Candor

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "candor": {
      "command": "npx",
      "args": [
        "-y",
        "candor-ts"
      ]
    }
  }
}

Frequently asked questions

Drug Interaction Checker is categorized under Biology & Bioinformatics and uses a remote HTTP/SSE transport. Candor belongs to Biology & Bioinformatics and uses a local stdio subprocess. Pick Drug Interaction Checker for biology & bioinformatics work and Candor for biology & bioinformatics.

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.

Drug Interaction Checker has no declared pricing — check the project's own site. Candor has no declared pricing — check the project's own site. 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 drug-interaction-checker and candor as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Drug Interaction Checker has a quality signal of 43/100 (Fair) with 2 views, 0 installs and 0 GitHub stars. Candor has 45/100 (Fair) with 2 views, 0 installs and 1 GitHub stars.