Darwin-owned Public Sources

Free bounded public HTTPS document and JSON reads. Exact host allowlist; real source provenance.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
80%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,031Tokens (tool definitions)
~4.6 KBTypical response size
Moderate attention impact (0.81% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "owned-research-mcp": {
      "url": "https://creora.darwin.so/providers/research/mcp"
    }
  }
}

Remote endpoints

https://creora.darwin.so/providers/research/mcpstreamable-http

What it can do

Tool inventory

Tools (2)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢read_official_document(url)

Read an anonymous public HTTPS HTML, Markdown or plain-text document from the explicit official-source host allowlist. Returns actual static text, anchor URLs, final URL, retrieval time and raw response SHA256. No JavaScript rendering, search, research conclusion, login or paywall bypass. Complete within bounded source/output limits; otherwise fails without truncating. Free Darwin-owned hosting; no provider key required.

Input Schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://",
      "minLength": 9,
      "maxLength": 2048
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "requestedUrl": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://",
      "minLength": 9,
      "maxLength": 2048
    },
    "finalUrl": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://",
      "minLength": 9,
      "maxLength": 2048
    },
    "retrievedAt": {
      "type": "string",
      "format": "date-time"
    },
    "status": {
      "const": 200
    },
    "mediaType": {
      "type": "string"
    },
    "sourceBytes": {
      "type": "integer",
      "minimum": 0,
      "maximum": 2097152
    },
    "sourceSha256": {
      "type": "string",
      "pattern": "^sha256:[a-f0-9]{64}$"
    },
    "complete": {
      "const": true
    },
    "redirects": {
      "type": "array",
      "maxItems": 3,
      "items": {
        "type": "object",
        "properties": {
          "from": {
            "type": "string",
            "format": "uri",
            "pattern": "^https://",
            "minLength": 9,
            "maxLength": 2048
          },
          "to": {
            "type": "string",
            "format": "uri",
            "pattern": "^https://",
            "minLength": 9,
            "maxLength": 2048
          },
          "status": {
            "type": "integer"
          }
        },
        "required": [
          "from",
          "to",
          "status"
        ],
        "additionalProperties": false
      }
    },
    "externalWrites": {
      "const": false
    },
    "format": {
      "enum": [
        "document",
        "json"
      ]
    },
    "jsonText": {
      "type": "string"
    },
    "text": {
      "type": "string"
    },
    "links": {
      "type": "array",
      "maxItems": 4096,
      "items": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "format": "uri"
          },
          "text": {
            "type": "string"
          }
        },
        "required": [
          "url",
          "text"
        ],
        "additionalProperties": false
      }
    }
  },
  "required": [
    "requestedUrl",
    "finalUrl",
    "retrievedAt",
    "status",
    "mediaType",
    "sourceBytes",
    "sourceSha256",
    "complete",
    "redirects",
    "externalWrites",
    "format",
    "jsonText",
    "text",
    "links"
  ],
  "additionalProperties": false
}
🟢read_official_json(url)

Read an anonymous public HTTPS JSON document from the explicit official-source host allowlist. Returns original decoded jsonText preserving numeric lexemes, final URL, retrieval time and raw response SHA256. No business data is inferred; duplicate keys and invalid JSON fail. No credentials, purchases or auth/paywall bypass. Free Darwin-owned hosting; no provider key required.

Input Schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://",
      "minLength": 9,
      "maxLength": 2048
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "requestedUrl": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://",
      "minLength": 9,
      "maxLength": 2048
    },
    "finalUrl": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://",
      "minLength": 9,
      "maxLength": 2048
    },
    "retrievedAt": {
      "type": "string",
      "format": "date-time"
    },
    "status": {
      "const": 200
    },
    "mediaType": {
      "type": "string"
    },
    "sourceBytes": {
      "type": "integer",
      "minimum": 0,
      "maximum": 2097152
    },
    "sourceSha256": {
      "type": "string",
      "pattern": "^sha256:[a-f0-9]{64}$"
    },
    "complete": {
      "const": true
    },
    "redirects": {
      "type": "array",
      "maxItems": 3,
      "items": {
        "type": "object",
        "properties": {
          "from": {
            "type": "string",
            "format": "uri",
            "pattern": "^https://",
            "minLength": 9,
            "maxLength": 2048
          },
          "to": {
            "type": "string",
            "format": "uri",
            "pattern": "^https://",
            "minLength": 9,
            "maxLength": 2048
          },
          "status": {
            "type": "integer"
          }
        },
        "required": [
          "from",
          "to",
          "status"
        ],
        "additionalProperties": false
      }
    },
    "externalWrites": {
      "const": false
    },
    "format": {
      "enum": [
        "document",
        "json"
      ]
    },
    "jsonText": {
      "type": "string"
    },
    "text": {
      "type": "string"
    },
    "links": {
      "type": "array",
      "maxItems": 4096,
      "items": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "format": "uri"
          },
          "text": {
            "type": "string"
          }
        },
        "required": [
          "url",
          "text"
        ],
        "additionalProperties": false
      }
    }
  },
  "required": [
    "requestedUrl",
    "finalUrl",
    "retrievedAt",
    "status",
    "mediaType",
    "sourceBytes",
    "sourceSha256",
    "complete",
    "redirects",
    "externalWrites",
    "format",
    "jsonText",
    "text",
    "links"
  ],
  "additionalProperties": false
}

Community

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Evidence

Recent observations

verifiedversion not recorded2 tools