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Fantasy Solvers – Balatro Lab

R0· no sign-in

Supported Balatro scoring and exact small-deck play/discard analysis with verified explanations.

v0.1.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality89new
Trust82of 100
Uptime, 30 days96%
Latency p50512 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "balatro-lab": {
      "type": "http",
      "url": "https://balatro.fantasysolvers.com/mcp"
    }
  }
}
claude mcp add --transport http balatro-lab https://balatro.fantasysolvers.com/mcp
[mcp_servers.balatro-lab]
url = "https://balatro.fantasysolvers.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "balatro-lab": {
      "type": "remote",
      "url": "https://balatro.fantasysolvers.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "balatro-lab": {
      "type": "http",
      "url": "https://balatro.fantasysolvers.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=balatro-lab&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYmFsYXRyby5mYW50YXN5c29sdmVycy5jb20vbWNwIn0%3D"
}
{
  "servers": {
    "balatro-lab": {
      "type": "http",
      "url": "https://balatro.fantasysolvers.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "balatro-lab": {
      "httpUrl": "https://balatro.fantasysolvers.com/mcp"
    }
  }
}
extensions:
  "balatro-lab":
    enabled: true
    name: "balatro-lab"
    type: streamable_http
    uri: "https://balatro.fantasysolvers.com/mcp"
    timeout: 300

Quality 89 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations4 of 4 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 1,747 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 6 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 1,747 tokens to load them all · tool set fb9ba5d8720f · checked 2026-10-21 01:38 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository
provenance55
liveness98
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-96% +updated-7d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://balatro.fantasysolvers.com/mcp streamable-httpnoneyes96%512 ms2025-11-252026-10-20

Tools (4)

compare_actionsread-onlyCompare all immediate plays or exact small-deck play/discard values, with the same contract and validation as HTTP. Exact mode limits: 12 draw cards, two hands, two discards. Select explain_actions for particular branches.
evaluate_handread-onlyVersioned optimized immediate score from bengine-core. Played and held order is optimized, not evaluated literally. Unsupported effects are rejected.
get_solver_capabilitiesread-onlyEngine/rules/build identity, contract version, supported effects, assumptions and limits.
recommend_actionread-onlyExact small-deck mathematical action values under optimal continuation in the supported model, not estimated real-game success. Returns all optimal ties and fully reconciled draw explanations; no recommendation on incomplete jobs. No A2/full-deck sampling.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "com.fantasysolvers.balatro/balatro-lab",
  "title": "Fantasy Solvers – Balatro Lab",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://balatro.fantasysolvers.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.0",
  "websiteUrl": "https://balatro.fantasysolvers.com/connect",
  "description": "Supported Balatro scoring and exact small-deck play/discard analysis with verified explanations."
}