Stigmer vs Radar

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

Stigmer logoStigmerCloud Platforms · Remote HTTP/SSEExecution graph of AWS: verified method contracts, IAM permissions, and least-privilege policies.55GoodAuth: not declaredRadar logoRadarCloud Platforms · Remote HTTP/SSEBuilt-in MCP server for Radar, a modern Kubernetes visibility tool. Lets AI agents query cluster topology, resources, events, logs, and Helm/GitOps state across multiple clusters. Single binary, no agents, no cloud dependency. Apache 2.0.60GoodAuth: no auth required

Verdict: choose Stigmer for cloud platforms work over a hosted endpoint; choose Radar for cloud platforms over a hosted endpoint. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Stigmer logoChoose Stigmer when

  • You need dedicated capabilities in the Cloud Platforms domain.
  • You prefer a remote HTTP/SSE transport.
  • You want tools like query, list_services, list_methods.
Explore Stigmer

Radar logoChoose Radar when

  • You need dedicated capabilities in the Cloud Platforms domain.
  • You prefer a remote HTTP/SSE transport.
  • Its auth model fits you: No auth required.
Explore Radar

Feature & specification comparison

Rows where the two servers differ are marked.

SpecStigmer logoStigmerRadar logoRadar
CategoryCloud PlatformsCloud Platforms
Quality signal55/100 · Good60/100 · Good
Install commandConfirmedConfirmed
TransportRemote HTTP/SSERemote HTTP/SSE
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars03,908
Directory activity 2 views 0 installs 0 upvotes 5 views 0 installs 0 upvotes
Tools8Not listed

Tools & capabilities

Stigmer tools 8

  • querySearch for verified method contracts for any library. Pass any text -- library name, method, what you're building, or an error you hit.
  • list_servicesList all libraries and services that have verified method contracts. Use this first to discover what's available, then query for specific methods.
  • list_methodsList all methods for a given library or service. Use after list_services to drill into a specific one.
  • policyGenerate a least-privilege IAM policy for an AWS workflow. Pass a named workflow, explicit IAM actions, or a description. Returns the exact policy with confidence tier and any unresolved operations.
  • list_workflowsList the curated named workflows that can generate least-privilege IAM policies.
  • verifyFeed a generated policy back to AWS's own policy evaluation engine (SimulateCustomPolicy) and confirm it grants exactly the intended operations and nothing extra. Returns verified (True|False|unknown), grants_all, grants_extra. Requires AWS credentials; without them verified=unknown with the reason. Wildcarded operations are expanded to concrete actions first.
  • authorizePre-flight authorization check for an AWS operation. Resolves the IAM actions the operation requires, then asks AWS's own policy simulator (SimulatePrincipalPolicy) whether the current role (or a given principal) allows them. Returns resolution (exact|partial|unresolved) and evaluation (allowed|denied|unknown) as separate fields. Requires AWS credentials; without them evaluation=unknown with the reason.
  • registerRegister a fix. Three actions: confirm (it worked), append_thread (variant worked), new_receipt (nothing matched, I fixed it).

Radar 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.

Stigmer

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "stigmer": {
      "url": "https://stigmer.network/mcp"
    }
  }
}

Radar

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "skyhook-io-radar": {
      "url": "https://api.producthunt.com/widgets/embed-image/v1/top-post-badge.svg?post_id=1130618&theme=neutral&period=daily"
    }
  }
}

Frequently asked questions

Stigmer is categorized under Cloud Platforms and uses a remote HTTP/SSE transport. Radar belongs to Cloud Platforms and uses a remote HTTP/SSE transport. Pick Stigmer for cloud platforms work and Radar for cloud platforms.

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.

Stigmer has no declared pricing — check the project's own site. Radar 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 stigmer and skyhook-io-radar as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Stigmer has a quality signal of 55/100 (Good) with 2 views, 0 installs and 0 GitHub stars. Radar has 60/100 (Good) with 5 views, 0 installs and 3,908 GitHub stars.