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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "glazecalc": {
      "type": "http",
      "url": "https://glazecalcapp.com/mcp",
      "headers": {
        "Authorization": "Bearer ${GLAZECALC_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http glazecalc https://glazecalcapp.com/mcp --header "Authorization: Bearer ${GLAZECALC_TOKEN}"

[mcp_servers.glazecalc]
url = "https://glazecalcapp.com/mcp"
bearer_token_env_var = "GLAZECALC_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "glazecalc": {
      "type": "remote",
      "url": "https://glazecalcapp.com/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:GLAZECALC_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "glazecalc": {
      "type": "http",
      "url": "https://glazecalcapp.com/mcp",
      "headers": {
        "Authorization": "Bearer ${GLAZECALC_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=glazecalc&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZ2xhemVjYWxjYXBwLmNvbS9tY3AiLCJoZWFkZXJzIjp7IkF1dGhvcml6YXRpb24iOiJCZWFyZXIgJHtHTEFaRUNBTENfVE9LRU59In19"
}

{
  "servers": {
    "glazecalc": {
      "type": "http",
      "url": "https://glazecalcapp.com/mcp",
      "headers": {
        "Authorization": "Bearer ${GLAZECALC_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "glazecalc": {
      "httpUrl": "https://glazecalcapp.com/mcp",
      "headers": {
        "Authorization": "Bearer ${GLAZECALC_TOKEN}"
      }
    }
  }
}

extensions:
  "glazecalc":
    enabled: true
    name: "glazecalc"
    type: streamable_http
    uri: "https://glazecalcapp.com/mcp"
    headers:
      "Authorization": "Bearer ${GLAZECALC_TOKEN}"
    timeout: 300

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

Quality 94 / 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 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.annotations9 of 9 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 4,314 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 1 of the 7 days needed

dependenciesn/a · weight 15

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

9 tools, about 4,314 tokens to load them all · tool set 28be2dc22353 · tools last changed 2026-10-20 · checked 2026-10-20 20:46 UTC

Tool changes

2026-10-20search_guideschangeddescription, input schema
before
Searches Glazecalc's plain-language guides for potters (glazing from first principles, making a glaze, safe mixing, safety at home with children and pets, firing a kiln) in the language asked for, or in English where that language has no match. Returns each matching section's title, anchor, a short excerpt, its address on the website and its resource URI, which resources/read returns in full. Use it for glaze defects, safety, firing and terms, and cite the address.
after · 89% of words in common
Searches Glazecalc's plain-language guides for potters (glazing from first principles, making a glaze, safe mixing, safety at home with children and pets, firing a kiln, and a companion to John Britt's free glaze course, in English only) in the language asked for, or in English where that language has no match. Returns each matching section's title, anchor, a short excerpt, its address on the website and its resource URI, which resources/read returns in full. Use it for glaze defects, safety, firing and terms, and cite the address.
2026-10-20blend_recipesadded
Works out the test tiles of a line blend between recipes a and b (2 to 11 steps), or of a triaxial blend when c is given too (2 to 6 rows, up to 21 tiles), as the Blends page of the Glazecalc app does. Each tile is a mix of the corner recipes, each taken as a percent of its base: its shares, its recipe in percent, its key unity formula figures (silica, alumina, boron, the fluxes), silica to alumina, calculated expansion, the names of the limit cautions it has, and, with a firing, whether its chemistry fits that firing (coneFit verdict). With two recipes and steps 2 it compares them oxide by oxide (differences). Give base materials only, no colorants. This is a calculation from published figures, not a test result: the tiles, fired, decide, and the cautions are guides, not a guarantee of food safety.
2026-10-20check_limitschangedinput schema
2026-10-20check_limitschangeddescriptionmeaning changed
before
Checks a glaze recipe for what is past a recommended limit for its firing (too much boron or alkali, too little alumina, too little or too much clay, rising expansion...) and says what the fired glaze will likely do, as the Glazecalc app does. These are cautions from published limits, not a guarantee of food safety.
after · 43% of words in common
Checks a glaze recipe for what is past a recommended limit for its firing (too much boron or alkali, too little alumina, too little or too much clay, rising expansion...) and says what the fired glaze will likely do, as the Glazecalc app does. With a firing, coneFit says whether the chemistry looks like that firing's, by Katz's boron rule and Hesselberth & Roy's silica and alumina whatever limit set is chosen: verdict 'cooler' or 'hotter' only when boron and silica or alumina agree on another band; 'fits' (nothing points away, not a pass); 'skipped' where the published figures do not reach (lead, lithium, much soda and potash or zinc, raku, cones 01 to 3...). Cone 6 against cone 10 is told apart only roughly (strength 'soft'). These are cautions and guides from published figures, not a test and not a guarantee of food safety.

Full history: list_changes · trend: quality JSON.

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 96 / 100

provenance85

liveness100

freshness100

hygiene100

+repository +dns-namespace +website +reachable +uptime-100% +updated-1d-ago

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://glazecalcapp.com/mcp` streamable-http	none	yes	100%	437 ms	2026-07-28	2026-10-20

Tools (9)

`analyze_recipe`read-only	Works out a glaze recipe's unity (Seger) formula, oxide groups, silica to alumina ratio, fired analysis, loss on ignition and calculated thermal expansion, as the Glazecalc app does.
`blend_recipes`read-only	Works out the test tiles of a line blend between recipes a and b (2 to 11 steps), or of a triaxial blend when c is given too (2 to 6 rows, up to 21 tiles), as the Blends page of the Glazecalc app does. Each tile is a mix of the corner recipes, each taken as a percent of its base: its shares, its recipe in percent, its key unity formula figures (silica, alumina, boron, the fluxes), silica to alumina, calculated expansion, the names of the limit cautions it has, and, with a firing, whether its chemistry fits that firing (coneFit verdict). With two recipes and steps 2 it compares them oxide by oxide (differences). Give base materials only, no colorants. This is a calculation from published figures, not a test result: the tiles, fired, decide, and the cautions are guides, not a guarantee of food safety.
`check_limits`read-only	Checks a glaze recipe for what is past a recommended limit for its firing (too much boron or alkali, too little alumina, too little or too much clay, rising expansion...) and says what the fired glaze will likely do, as the Glazecalc app does. With a firing, coneFit says whether the chemistry looks like that firing's, by Katz's boron rule and Hesselberth & Roy's silica and alumina whatever limit set is chosen: verdict 'cooler' or 'hotter' only when boron and silica or alumina agree on another band; 'fits' (nothing points away, not a pass); 'skipped' where the published figures do not reach (lead, lithium, much soda and potash or zinc, raku, cones 01 to 3...). Cone 6 against cone 10 is told apart only roughly (strength 'soft'). These are cautions and guides from published figures, not a test and not a guarantee of food safety.
`convert_cone_temperature`read-only	Converts between a pyrometric cone and its temperature (Orton large cones at 60 °C an hour, cones 06 to 6; SK cones, JIS R 8101, 022 to 42), and between °C and °F. Give a cone, or a temperature to find the nearest cones.
`get_material`read-only	One material from Glazecalc's library: its oxides, loss on ignition, whether it is discontinued and what replaces it, where it is sold, hazards and the data sheet it comes from.
`match_from_materials`read-only	Remakes a glaze recipe from only the materials listed in "have", keeping its unity formula as near as they allow, as Match with what I have does in the Glazecalc app. Test any suggestion before using it.
`search_guides`read-only	Searches Glazecalc's plain-language guides for potters (glazing from first principles, making a glaze, safe mixing, safety at home with children and pets, firing a kiln, and a companion to John Britt's free glaze course, in English only) in the language asked for, or in English where that language has no match. Returns each matching section's title, anchor, a short excerpt, its address on the website and its resource URI, which resources/read returns in full. Use it for glaze defects, safety, firing and terms, and cite the address.
`search_materials`read-only	Finds ceramic raw materials (feldspars, clays, frits, fluxes) and, if asked, colorants in Glazecalc's library by name, alias or maker. Use it to find the exact name the other tools take.
`suggest_substitutes`read-only	Finds the discontinued or scarce materials in a recipe and the modern ones that replace them, then suggests amounts that keep the unity formula as near as the materials allow, as the Glazecalc app does. Test any suggestion before using it.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.glazecalcapp/glazecalc",
  "title": "Glazecalc",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://glazecalcapp.com/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Only for your own saved records: \"Bearer \" and a personal access token made on your Glazecalc account page, read only or read and change. The public tools need none."
        }
      ]
    }
  ],
  "version": "1.1.0",
  "repository": {
    "url": "https://github.com/AaronFilson/glazecalc",
    "source": "github"
  },
  "websiteUrl": "https://glazecalcapp.com/assistants",
  "description": "Ceramic glaze chemistry: unity formulas, limit checks, substitutes, cones and potters' guides."
}