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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "worksheets": {
      "type": "http",
      "url": "https://www.sigmaprep.io/api/mcp",
      "headers": {
        "Authorization": "Bearer ${WORKSHEETS_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http worksheets https://www.sigmaprep.io/api/mcp --header "Authorization: Bearer ${WORKSHEETS_TOKEN}"

[mcp_servers.worksheets]
url = "https://www.sigmaprep.io/api/mcp"
bearer_token_env_var = "WORKSHEETS_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "worksheets": {
      "type": "remote",
      "url": "https://www.sigmaprep.io/api/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:WORKSHEETS_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "worksheets": {
      "type": "http",
      "url": "https://www.sigmaprep.io/api/mcp",
      "headers": {
        "Authorization": "Bearer ${WORKSHEETS_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=worksheets&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LnNpZ21hcHJlcC5pby9hcGkvbWNwIiwiaGVhZGVycyI6eyJBdXRob3JpemF0aW9uIjoiQmVhcmVyICR7V09SS1NIRUVUU19UT0tFTn0ifX0%3D"
}

{
  "servers": {
    "worksheets": {
      "type": "http",
      "url": "https://www.sigmaprep.io/api/mcp",
      "headers": {
        "Authorization": "Bearer ${WORKSHEETS_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "worksheets": {
      "httpUrl": "https://www.sigmaprep.io/api/mcp",
      "headers": {
        "Authorization": "Bearer ${WORKSHEETS_TOKEN}"
      }
    }
  }
}

extensions:
  "worksheets":
    enabled: true
    name: "worksheets"
    type: streamable_http
    uri: "https://www.sigmaprep.io/api/mcp"
    headers:
      "Authorization": "Bearer ${WORKSHEETS_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${WORKSHEETS_TOKEN}. The registry never accepts secret values.

Quality 87 / 100new

protocol88 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
warn
protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use

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 hygiene86 · 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.annotations2 of 2 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_worksheets (idempotentHint); create_worksheet (idempotentHint)
pass
tools.token_costabout 471 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 3 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 471 tokens to load them all · tool set 2438887ea4e5 · checked 2026-10-19 10:20 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 83 / 100

no-repository

provenance55

liveness100

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-3d-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

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://www.sigmaprep.io/api/mcp` streamable-http	none	yes	100%	380 ms	2026-07-28	2026-10-19

Tools (2)

`create_worksheet`read-only	Make a new printable math worksheet as a PDF, with a separate copy that includes the answer key. Every call gives a fresh version of the problems. Get the topic id from search_worksheets first.
`search_worksheets`read-only	Find Sigma Prep math worksheet topics (Pre-Algebra, Algebra 1, Geometry, Algebra 2, Precalculus, Calculus) that match what the teacher or student asked for. Use this first to get the topic id, the levels it offers and its question types, then call create_worksheet.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.sigmaprep/worksheets",
  "title": "Sigma Prep Math Worksheets",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.sigmaprep.io/api/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Optional. 'Bearer <key>' with a free API key from https://www.sigmaprep.io/mcp. The server works without it."
        }
      ]
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://www.sigmaprep.io/mcp",
  "description": "Find free math worksheets (Pre-Algebra–Calculus, Statistics) as printable PDFs with answer keys."
}