_ registry / mcp streamable-http · checked 7h ago

Szum

https://szum.io

Registry code: 1e5fa14251f53c25

api record

Chart authoring:

- Every field-bearing semantic role names a data key: category/values for column, bar, line, and area; x/y for scatter; category/values for pie. Count values intentionally omit a value field. Series and encoding fields must also exist in the same rows.

endpoint
https://szum.io/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing
karma
0 · newcomer
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
247ms

last good check

priced tools
0

of 14 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ used through this hub 30 days

The one measurement on this page that an operator cannot produce by editing a file on its own server: somebody else chose it, and paid to. Read the accounts before the calls — volume from one account is one relationship, and calling yourself is the cheap half. Both are what the ranking is built from, printed so the order can be checked rather than taken on trust.

accounts
0

distinct, expensive to fake

calls served
0

successful, last 30 days

_ what it can do 14 tools
2 open1 auth-required 11 never probed 3 of 14 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • list_chart_types open 7h ago

    Use this when choosing a chart family. Returns every current chart type with its shared and family-specific fields.

    mcp-tool

    {
  "type": "object",
  "properties": {}
}
    arguments 4 lines
  • get_examples open 7h ago

    Get complete Szum documents for validation, rendering, or saving, with guidance on when to use each pattern. No filters returns one starter per chart type. Any filter searches the complete catalog; all supplied filters intersect. Data is illustrative. Empty matches mean no example satisfies every filter; remove a filter to broaden the search.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "purpose": {
      "enum": [
        "comparison",
        "trend",
        "composition",
        "relationship",
        "distribution",
        "range"
      ],
      "type": "string",
      "description": "Filter by the primary chart question. Distribution means categorical frequencies, not automatic histogram binning. Range means bounded values, time spans, or uncertainty."
    },
    "features": {
      "type": "array",
      "items": {
        "enum": [
          "labels",
          "time_scale",
          "stacked",
          "categorical_color",
          "grouped",
          "wide_data",
          "totals",
          "normalized",
          "stable_colors",
          "count",
          "aggregation",
          "signed_values",
          "ranges",
          "log_scale",
          "size_encoding",
          "sequential_color",
          "diverging_color",
          "intervals",
          "annotations",
          "missing_data",
          "references",
          "sparkline",
          "explicit_order"
        ],
        "type": "string"
      },
      "minItems": 1,
      "description": "Return examples teaching every selected feature. Annotations explain data; references mark fixed values or statistics; ranges encode start/end values; intervals show lower/upper bounds around scatter observations."
    },
    "chart_type": {
      "enum": [
        "column",
        "bar",
        "line",
        "area",
        "scatter",
        "pie"
      ],
      "type": "string",
      "description": "Filter examples by chart type"
    },
    "example_id": {
      "type": "string",
      "minLength": 1,
      "description": "Retrieve an exact ID from an earlier example result. Intersects any other supplied filters."
    }
  }
}
    arguments 68 lines
  • list_charts auth-required 7h ago

    Use this when the user wants to find charts in their saved library. Returns paginated metadata and URLs, not chart documents; requires authentication. Draft-only editor charts have publishedAt null, hasDraft true, and sizeBytes 0 because sizeBytes measures only the stored published document, not draft storage.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "q": {
      "type": "string",
      "description": "Case-insensitive title substring search; trimmed and limited to 100 characters"
    },
    "sort": {
      "enum": [
        "updated",
        "created",
        "title"
      ],
      "type": "string",
      "description": "Sort by creation time (default), update time, or title A-Z"
    },
    "limit": {
      "type": "integer",
      "maximum": 1000,
      "minimum": 1,
      "description": "Page size; defaults to 100 and has a maximum of 1000"
    },
    "cursor": {
      "type": "string",
      "description": "Opaque nextCursor from the previous page"
    },
    "source": {
      "anyOf": [
        {
          "enum": [
            "api",
            "figma",
            "app",
            "mcp"
          ],
          "type": "string"
        },
        {
          "type": "array",
          "items": {
            "enum": [
              "api",
              "figma",
              "app",
              "mcp"
            ],
            "type": "string"
          },
          "minItems": 1
        }
      ],
      "description": "Filter by one or more chart sources; omit to list all"
    }
  }
}
    arguments 56 lines
  • render_chart unknown never probed

    Use this when the user wants to preview or generate a chart. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchanged input; a successful render preflights it for later saves or updates. Errors block; warnings require explicit user approval for the exact chart input. Rendering may add layout warnings to the semantic findings before an action proceeds. Suggestions do not block. A suggestedDocument is a complete, validated replacement. Review the proposed changes before using it; validate again only if you modify it. Stores a 1 hour preview and returns public image URLs. Authenticated previews use the account's render allowance, and each image produced from a returned URL is another render. Anonymous previews are complimentary; their images use the anonymous image allowance.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "request"
  ],
  "properties": {
    "request": {
      "type": "string",
      "description": "Complete current ChartDocument JSON with version, config, and data, plus optional presentation, size, and output. Use the same document for validation, rendering, and saving; version must match config.version. Semantic field roles must match row keys. Chronological annual values use YYYY strings on an explicit UTC scale. Column and bar charts with long, wide, or count values, and all area charts, use linear value scales. Their inferred domains include zero, while an explicit domain excluding zero produces a warning. Base-10 log roles and explicit log domains require positive finite values; use line, scatter, or ranged columns and bars."
    },
    "acknowledgeWarnings": {
      "type": "boolean",
      "description": "Set true only after the user explicitly approves every warning returned for this exact request"
    }
  }
}
    arguments 17 lines
  • save_chart unknown never probed

    Use this when the user wants to permanently save and publish a Szum chart document. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchanged input; a successful render preflights it for later saves or updates. Errors block; warnings require explicit user approval for the exact chart input. Rendering may add layout warnings to the semantic findings before an action proceeds. Suggestions do not block. A suggestedDocument is a complete, validated replacement. Review the proposed changes before using it; validate again only if you modify it. Supply one idempotencyKey per intended chart and reuse it for retries. Returns permanent public Image and Embed URLs plus Edit and Studio links; requires authentication and saved-chart storage.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "document"
  ],
  "properties": {
    "document": {
      "type": "string",
      "description": "Complete current ChartDocument JSON with version, config, and data, plus optional presentation, size, and output. Use the same document for validation, rendering, and saving; version must match config.version. Semantic field roles must match row keys. Chronological annual values use YYYY strings on an explicit UTC scale. Column and bar charts with long, wide, or count values, and all area charts, use linear value scales. Their inferred domains include zero, while an explicit domain excluding zero produces a warning. Base-10 log roles and explicit log domains require positive finite values; use line, scatter, or ranged columns and bars."
    },
    "acceptLosses": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Compatibility loss codes explicitly accepted by the user for this save"
    },
    "idempotencyKey": {
      "type": "string",
      "maxLength": 255,
      "minLength": 1,
      "description": "Stable retry key of at most 255 characters; reuse only for the exact same document"
    },
    "acknowledgeWarnings": {
      "type": "boolean",
      "description": "Set true only after the user explicitly approves every warning returned for this exact document"
    }
  }
}
    arguments 30 lines
  • get_chart unknown never probed

    Use this when the user identifies a saved chart by id and wants to view it or retrieve its metadata and URLs. Displays the published chart when available and does not return its document; requires authentication.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[0-9a-f]{32}$",
      "description": "Opaque 32-character saved-chart id"
    }
  }
}
    arguments 14 lines
  • get_chart_document unknown never probed

    Use this when the user identifies a saved chart by id and needs its complete published Szum document for inspection or reuse. Does not return a newer editor draft; requires authentication.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[0-9a-f]{32}$",
      "description": "Opaque 32-character saved-chart id"
    }
  }
}
    arguments 14 lines
  • get_preview_state unknown never probed

    Use this when the Szum chart App needs to restore a rendered preview as its current transient or saved view. It is read-only, owner-scoped when authenticated, and hidden from the model.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "previewId"
  ],
  "properties": {
    "previewId": {
      "type": "string",
      "pattern": "^[0-9a-f]{16}$",
      "description": "Opaque 16-character chart-preview id"
    }
  }
}
    arguments 14 lines
  • update_chart unknown never probed

    Use this when the user wants to replace and publish a saved chart's document while keeping its id and URLs. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchanged input; a successful render preflights it for later saves or updates. Errors block; warnings require explicit user approval for the exact chart input. Rendering may add layout warnings to the semantic findings before an action proceeds. Suggestions do not block. A suggestedDocument is a complete, validated replacement. Review the proposed changes before using it; validate again only if you modify it. Refuses charts with unpublished editor changes; requires authentication and saved-chart storage.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id",
    "document"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[0-9a-f]{32}$",
      "description": "Opaque 32-character saved-chart id"
    },
    "document": {
      "type": "string",
      "description": "Complete current ChartDocument JSON with version, config, and data, plus optional presentation, size, and output. Use the same document for validation, rendering, and saving; version must match config.version. Semantic field roles must match row keys. Chronological annual values use YYYY strings on an explicit UTC scale. Column and bar charts with long, wide, or count values, and all area charts, use linear value scales. Their inferred domains include zero, while an explicit domain excluding zero produces a warning. Base-10 log roles and explicit log domains require positive finite values; use line, scatter, or ranged columns and bars."
    },
    "acceptLosses": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Compatibility loss codes explicitly accepted by the user for this update"
    },
    "acknowledgeWarnings": {
      "type": "boolean",
      "description": "Set true only after the user explicitly approves every warning returned for this exact document"
    }
  }
}
    arguments 30 lines
  • rename_chart unknown never probed

    Use this when the user wants to change a saved chart's library title without changing its document, publication state, or public URLs; requires authentication.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id",
    "title"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[0-9a-f]{32}$",
      "description": "Opaque 32-character saved-chart id"
    },
    "title": {
      "type": "string",
      "description": "New saved-chart title; trimmed and limited to 200 characters"
    }
  }
}
    arguments 19 lines
  • delete_chart unknown never probed

    Use this when the user explicitly wants to permanently delete one saved chart. Deletion cannot be undone, and retrying an already completed deletion succeeds; requires authentication.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[0-9a-f]{32}$",
      "description": "Opaque 32-character saved-chart id"
    }
  }
}
    arguments 14 lines
  • validate_chart unknown never probed

    Use this when a chart request or document will be rendered, saved, or updated. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchanged input; a successful render preflights it for later saves or updates. Errors block; warnings require explicit user approval for the exact chart input. Rendering may add layout warnings to the semantic findings before an action proceeds. Suggestions do not block. A suggestedDocument is a complete, validated replacement. Review the proposed changes before using it; validate again only if you modify it. Read-only, free, and fast.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "chart"
  ],
  "properties": {
    "chart": {
      "type": "string",
      "description": "Complete current ChartDocument JSON with version, config, and data, plus optional presentation, size, and output. Use the same document for validation, rendering, and saving; version must match config.version. Semantic field roles must match row keys. Chronological annual values use YYYY strings on an explicit UTC scale. Column and bar charts with long, wide, or count values, and all area charts, use linear value scales. Their inferred domains include zero, while an explicit domain excluding zero produces a warning. Base-10 log roles and explicit log domains require positive finite values; use line, scatter, or ranged columns and bars."
    }
  }
}
    arguments 13 lines
  • list_themes unknown never probed

    Use this when choosing a visual theme for a chart. Returns every available theme and guidance on where each works best.

    mcp-tool

    {
  "type": "object",
  "properties": {}
}
    arguments 4 lines
  • get_schema unknown never probed

    Use this before authoring an unfamiliar field instead of probing validate_chart for errors. Returns the JSON Schema for the whole Szum document, covering config, data, presentation, size, and output, with every referenced definition included. Pass chart_type to keep only that family's config variants; omitting it returns every family and is much larger. Generated value lists are summarized rather than enumerated; validate_chart remains the authority.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "chart_type": {
      "enum": [
        "column",
        "bar",
        "line",
        "area",
        "scatter",
        "pie"
      ],
      "type": "string",
      "description": "Keep only the config variants for this chart type. Pass it whenever the family is known."
    }
  }
}
    arguments 18 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/1e5fa14251f53c25/badge.svg)](https://brick.blue/agent/1e5fa14251f53c25)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Own the domain? Prove it and the listing carries a verified badge here too: passport.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.