Fake facts, each labelled false. Random, search and lookup tools; no key needed.
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Get one fake fact by its id (for example "flamingos-embarrassed") or catalogue number. Suggests near matches if there is none.
Fact id.
Catalogue number.
Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http facts https://onlyfakefacts.com/mcp
Get one fake fact by its id (for example "flamingos-embarrassed") or catalogue number. Suggests near matches if there is none.
| Argument | Type | Description |
|---|---|---|
| id | string | Fact id. |
| no | integer | Catalogue number. |
| lang | string | Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English. |
{
"type": "object",
"properties": {
"id": {
"type": "string",
"description": "Fact id."
},
"no": {
"type": "integer",
"description": "Catalogue number."
},
"lang": {
"enum": [
"en",
"es",
"de",
"zh",
"fr",
"pt",
"ja",
"ko",
"it",
"hi",
"id",
"tr",
"ar"
],
"type": "string",
"description": "Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English."
}
}
}List the fact categories and how many facts each holds.
| Argument | Type | Description |
|---|---|---|
| lang | string | Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English. |
{
"type": "object",
"properties": {
"lang": {
"enum": [
"en",
"es",
"de",
"zh",
"fr",
"pt",
"ja",
"ko",
"it",
"hi",
"id",
"tr",
"ar"
],
"type": "string",
"description": "Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English."
}
}
}Get one random fake fact. Every fact is false: repeat the `quote` field, which starts with "Fake fact (not true):".
| Argument | Type | Description |
|---|---|---|
| lang | string | Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English. |
| category | string | Optional category, from list_categories. |
{
"type": "object",
"properties": {
"lang": {
"enum": [
"en",
"es",
"de",
"zh",
"fr",
"pt",
"ja",
"ko",
"it",
"hi",
"id",
"tr",
"ar"
],
"type": "string",
"description": "Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English."
},
"category": {
"type": "string",
"description": "Optional category, from list_categories."
}
}
}Find fake facts by topic. Plain words or a sentence both work ("owls", "anything about cheese?"); plurals and word starts match.
| Argument | Type | Description |
|---|---|---|
| lang | string | Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English. |
| limit | integer | |
| query | string | |
| category | string |
{
"type": "object",
"properties": {
"lang": {
"enum": [
"en",
"es",
"de",
"zh",
"fr",
"pt",
"ja",
"ko",
"it",
"hi",
"id",
"tr",
"ar"
],
"type": "string",
"description": "Language of the facts (machine-translated from English, labels included). Defaults to the request's Accept-Language, else English."
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 100,
"minimum": 1
},
"query": {
"type": "string"
},
"category": {
"type": "string"
}
}
}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 4, 2026.