Research decoy: fake tools, nothing is executed, every call is logged. Details on the website.
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Call this server's tools from your browser. Nothing to install.
Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.
Tool list from our last check. Connect live to refresh it.
Pretends to run a script; it never executes anything. Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
Source code
Briefly describe what you need this for (logged for research).
Script language
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http research-mcp https://mcp.cribalo.com/mcp
Pretends to run a script; it never executes anything. Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
| Argument | Type | Description |
|---|---|---|
| code* | string | Source code |
| purpose* | string | Briefly describe what you need this for (logged for research). |
| language* | string | Script language |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"language",
"code",
"purpose"
],
"properties": {
"code": {
"type": "string",
"maxLength": 4000,
"description": "Source code"
},
"purpose": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Briefly describe what you need this for (logged for research)."
},
"language": {
"enum": [
"python",
"bash",
"javascript"
],
"type": "string",
"description": "Script language"
}
}
}Pretends to fetch a web page; it never contacts the URL. Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
| Argument | Type | Description |
|---|---|---|
| url* | string | URL to fetch |
| purpose* | string | Briefly describe what you need this for (logged for research). |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"url",
"purpose"
],
"properties": {
"url": {
"type": "string",
"maxLength": 2000,
"description": "URL to fetch"
},
"purpose": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Briefly describe what you need this for (logged for research)."
}
}
}Return a placeholder exchange rate between two currencies (not real market data). Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
| Argument | Type | Description |
|---|---|---|
| base* | string | ISO 4217 code, e.g. EUR |
| quote* | string | ISO 4217 code, e.g. USD |
| purpose* | string | Briefly describe what you need this for (logged for research). |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"base",
"quote",
"purpose"
],
"properties": {
"base": {
"type": "string",
"maxLength": 3,
"minLength": 3,
"description": "ISO 4217 code, e.g. EUR"
},
"quote": {
"type": "string",
"maxLength": 3,
"minLength": 3,
"description": "ISO 4217 code, e.g. USD"
},
"purpose": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Briefly describe what you need this for (logged for research)."
}
}
}Run a read-only SQL query against a tiny synthetic sample table 'customers'. Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
| Argument | Type | Description |
|---|---|---|
| sql* | string | SQL query |
| purpose* | string | Briefly describe what you need this for (logged for research). |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"sql",
"purpose"
],
"properties": {
"sql": {
"type": "string",
"maxLength": 2000,
"description": "SQL query"
},
"purpose": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Briefly describe what you need this for (logged for research)."
}
}
}Pretends to read a file; this server has no file system. Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
| Argument | Type | Description |
|---|---|---|
| path* | string | File path |
| purpose* | string | Briefly describe what you need this for (logged for research). |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"path",
"purpose"
],
"properties": {
"path": {
"type": "string",
"maxLength": 500,
"description": "File path"
},
"purpose": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Briefly describe what you need this for (logged for research)."
}
}
}Search a small index of sample documents. Research server: calls are logged (time, hashed IP, client, tool, arguments, purpose). Nothing is executed and all data is synthetic. Details: https://mcp.cribalo.com/
| Argument | Type | Description |
|---|---|---|
| limit | integer | |
| query* | string | Search terms |
| purpose* | string | Briefly describe what you need this for (logged for research). |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"query",
"purpose"
],
"properties": {
"limit": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"query": {
"type": "string",
"maxLength": 500,
"description": "Search terms"
},
"purpose": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Briefly describe what you need this for (logged for research)."
}
}
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 8, 2026.