European and open-source alternatives to mainstream software, judged by the current owner's HQ.
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Given a list of tools someone uses, report which have European alternatives in the catalog. Much cheaper than calling find_alternatives repeatedly.
Tool names, max 50.
Alternatives to name per tool, 1-5, default 3.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
claude mcp add --transport http european-alternatives https://gricker.eu/mcp
Given a list of tools someone uses, report which have European alternatives in the catalog. Much cheaper than calling find_alternatives repeatedly.
| Argument | Type | Description |
|---|---|---|
| tools* | array | Tool names, max 50. |
| per_tool | number | Alternatives to name per tool, 1-5, default 3. |
| open_source_only | boolean |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"tools"
],
"properties": {
"tools": {
"type": "array",
"items": {
"type": "string"
},
"description": "Tool names, max 50."
},
"per_tool": {
"type": "number",
"description": "Alternatives to name per tool, 1-5, default 3."
},
"open_source_only": {
"type": "boolean"
}
}
}Given a mainstream tool a business wants to move away from (e.g. "Notion", "Google Analytics", "AWS"), return European and/or open-source alternatives from the gricker.eu catalog.
| Argument | Type | Description |
|---|---|---|
| to* | string | The incumbent tool being replaced, e.g. "Slack". |
| limit | number | 1-25, default 5. |
| country | string | ISO-3166 alpha-2, e.g. "DE". |
| category | string | Restrict to one category (see list_categories). |
| open_source_only | boolean |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"to"
],
"properties": {
"to": {
"type": "string",
"description": "The incumbent tool being replaced, e.g. \"Slack\"."
},
"limit": {
"type": "number",
"description": "1-25, default 5."
},
"country": {
"type": "string",
"description": "ISO-3166 alpha-2, e.g. \"DE\"."
},
"category": {
"type": "string",
"description": "Restrict to one category (see list_categories)."
},
"open_source_only": {
"type": "boolean"
}
}
}Full record for one catalog tool by name: description, country, sources, what it replaces.
| Argument | Type | Description |
|---|---|---|
| name* | string | Tool name or slug, e.g. "Proton Mail" or "proton-mail". |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"description": "Tool name or slug, e.g. \"Proton Mail\" or \"proton-mail\"."
}
}
}The fixed category taxonomy with a count of published tools in each.
No arguments.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {}
}Search European/open-source tools by keyword or by meaning. Use when the user describes a need rather than naming a tool to replace.
| Argument | Type | Description |
|---|---|---|
| limit | number | 1-25, default 5. |
| query* | string | Keywords or a description of the need. |
| country | string | ISO-3166 alpha-2. |
| category | string | |
| open_source_only | boolean |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"query"
],
"properties": {
"limit": {
"type": "number",
"description": "1-25, default 5."
},
"query": {
"type": "string",
"description": "Keywords or a description of the need."
},
"country": {
"type": "string",
"description": "ISO-3166 alpha-2."
},
"category": {
"type": "string"
},
"open_source_only": {
"type": "boolean"
}
}
}Submit a European or open-source tool missing from the catalog. It enters a human review queue — submission is not publication, and HQ evidence is required before anything is listed.
| Argument | Type | Description |
|---|---|---|
| url* | string | Homepage URL. |
| why | string | Why it qualifies — European HQ, what it replaces. |
| name* | string | Tool name. |
| country | string | ISO-3166 alpha-2 of its HQ, if known. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"name",
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Homepage URL."
},
"why": {
"type": "string",
"description": "Why it qualifies — European HQ, what it replaces."
},
"name": {
"type": "string",
"description": "Tool name."
},
"country": {
"type": "string",
"description": "ISO-3166 alpha-2 of its HQ, if known."
}
}
}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 3, 2026.