Omniseal
Conceal, retrieve, verify, and remove hidden files with PureCipher Omniseal.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
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": {
"omniseal": {
"url": "https://api.purecipher.com/mcp?platform=claude"
}
}
}Remote endpoints
https://api.purecipher.com/mcp?platform=claudestreamable-httpWhat it can do
Tool inventory
Tools (4)
⚪seal_files(cover_file, secret_file, private_seed)
Conceal a secret file inside a cover file, returning a new sealed file without overwriting originals. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.
Input Schema
{
"type": "object",
"properties": {
"cover_file": {
"type": "object",
"description": "An explicitly supplied file. Provide exactly one HTTPS download URL or exact base64 bytes. Claude attachment IDs and local paths are not downloadable URLs.",
"properties": {
"file_name": {
"type": "string",
"minLength": 1,
"maxLength": 255
},
"mime_type": {
"type": "string"
},
"download_url": {
"type": "string",
"format": "uri"
},
"content_base64": {
"type": "string",
"minLength": 1,
"maxLength": 8388608
}
},
"required": [
"file_name"
],
"oneOf": [
{
"required": [
"download_url"
]
},
{
"required": [
"content_base64"
]
}
],
"additionalProperties": false
},
"secret_file": {
"type": "object",
"description": "An explicitly supplied file. Provide exactly one HTTPS download URL or exact base64 bytes. Claude attachment IDs and local paths are not downloadable URLs.",
"properties": {
"file_name": {
"type": "string",
"minLength": 1,
"maxLength": 255
},
"mime_type": {
"type": "string"
},
"download_url": {
"type": "string",
"format": "uri"
},
"content_base64": {
"type": "string",
"minLength": 1,
"maxLength": 8388608
}
},
"required": [
"file_name"
],
"oneOf": [
{
"required": [
"download_url"
]
},
{
"required": [
"content_base64"
]
}
],
"additionalProperties": false
},
"private_seed": {
"type": "string",
"minLength": 1,
"maxLength": 256,
"description": "User-supplied Omniseal private seed. Never use an account password or API credential."
}
},
"required": [
"cover_file",
"secret_file",
"private_seed"
],
"additionalProperties": false
}🟢retrieve_secret_file(sealed_file, private_seed)
Recover the exact hidden file from an Omniseal sealed file using its private seed. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.
Input Schema
{
"type": "object",
"properties": {
"sealed_file": {
"type": "object",
"description": "An explicitly supplied file. Provide exactly one HTTPS download URL or exact base64 bytes. Claude attachment IDs and local paths are not downloadable URLs.",
"properties": {
"file_name": {
"type": "string",
"minLength": 1,
"maxLength": 255
},
"mime_type": {
"type": "string"
},
"download_url": {
"type": "string",
"format": "uri"
},
"content_base64": {
"type": "string",
"minLength": 1,
"maxLength": 8388608
}
},
"required": [
"file_name"
],
"oneOf": [
{
"required": [
"download_url"
]
},
{
"required": [
"content_base64"
]
}
],
"additionalProperties": false
},
"private_seed": {
"type": "string",
"minLength": 1,
"maxLength": 256,
"description": "User-supplied Omniseal private seed. Never use an account password or API credential."
}
},
"required": [
"sealed_file",
"private_seed"
],
"additionalProperties": false
}🟢verify_sealed_file(sealed_file)
Check whether an Omniseal sealed file shows signs of tampering. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.
Input Schema
{
"type": "object",
"properties": {
"sealed_file": {
"type": "object",
"description": "An explicitly supplied file. Provide exactly one HTTPS download URL or exact base64 bytes. Claude attachment IDs and local paths are not downloadable URLs.",
"properties": {
"file_name": {
"type": "string",
"minLength": 1,
"maxLength": 255
},
"mime_type": {
"type": "string"
},
"download_url": {
"type": "string",
"format": "uri"
},
"content_base64": {
"type": "string",
"minLength": 1,
"maxLength": 8388608
}
},
"required": [
"file_name"
],
"oneOf": [
{
"required": [
"download_url"
]
},
{
"required": [
"content_base64"
]
}
],
"additionalProperties": false
}
},
"required": [
"sealed_file"
],
"additionalProperties": false
}🔴remove_hidden_file(sealed_file, private_seed)
Return a new clean cover with the hidden payload removed; preserve the original sealed file. File results are binary MCP resources; this connector rejects results exceeding its 140,000-character limit. Inputs require actual file bytes or reachable URLs.
Input Schema
{
"type": "object",
"properties": {
"sealed_file": {
"type": "object",
"description": "An explicitly supplied file. Provide exactly one HTTPS download URL or exact base64 bytes. Claude attachment IDs and local paths are not downloadable URLs.",
"properties": {
"file_name": {
"type": "string",
"minLength": 1,
"maxLength": 255
},
"mime_type": {
"type": "string"
},
"download_url": {
"type": "string",
"format": "uri"
},
"content_base64": {
"type": "string",
"minLength": 1,
"maxLength": 8388608
}
},
"required": [
"file_name"
],
"oneOf": [
{
"required": [
"download_url"
]
},
{
"required": [
"content_base64"
]
}
],
"additionalProperties": false
},
"private_seed": {
"type": "string",
"minLength": 1,
"maxLength": 256,
"description": "User-supplied Omniseal private seed. Never use an account password or API credential."
}
},
"required": [
"sealed_file",
"private_seed"
],
"additionalProperties": false
}Community
Evidence