Input schema (JSON)
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"mcp": {
"enum": [
"official",
"remote",
"any"
],
"type": "string",
"description": "official: MCP server by the vendor; remote: hosted endpoint that answered an MCP handshake (no install); any: any MCP server. Docs-only servers never count"
},
"auth": {
"enum": [
"api_key",
"oauth2",
"api_key+oauth2",
"none",
"cloud_iam"
],
"type": "string"
},
"sort": {
"enum": [
"fit",
"rating",
"reviews",
"usage",
"issues"
],
"type": "string",
"description": "fit (default): operation fit and task factors; rating: user rating weighted by review count, so 5/5 from one review does not lead; reviews: most reviewed first; usage: most monthly SDK downloads (npm + PyPI) first; issues: highest issue_health (GitHub issues resolved and fixed fast) first. Services without the signal go last; ties keep fit order"
},
"limit": {
"type": "integer",
"maximum": 50,
"minimum": 1,
"description": "Max results, default 10"
},
"query": {
"type": "string",
"description": "The operation you need, e.g. 'text to video', 'geocode street addresses', 'send sms'"
},
"volume": {
"enum": [
"single",
"bulk"
],
"type": "string",
"description": "bulk: many calls (batch jobs, 100+ items); services whose terms forbid bulk use are ranked last. Inferred from the query if omitted"
},
"no_auth": {
"type": "boolean",
"description": "Only services usable without any key"
},
"no_card": {
"type": "boolean",
"description": "Only services whose free plan needs no payment card (or no account at all)"
},
"category": {
"type": "string",
"description": "Category id from list_categories, e.g. 'video-generation'"
},
"free_tier": {
"type": "boolean",
"description": "Only services with lasting free usage (not one-off trial credits)"
},
"min_rating": {
"type": "number",
"maximum": 5,
"minimum": 1,
"description": "Only services whose user reviews (SourceForge) average at least this, e.g. 4. Services without reviews are excluded"
},
"min_reviews": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": 1,
"description": "Only services with at least this many user reviews, e.g. 10. Services without reviews are excluded"
},
"min_downloads": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": 1,
"description": "Only services whose official SDKs (npm + PyPI) have at least this many downloads per month, e.g. 100000. Services without a known SDK are excluded"
},
"include_trials": {
"type": "boolean",
"description": "With free_tier: also accept one-off trial or signup credits"
},
"min_issue_health": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "Only services whose main GitHub repo (official SDK, MCP server or spec) scores at least this issue_health, e.g. 60. 0-100: 40% share of issues resolved (open vs fixed now; closed as not planned does not count), 40% fix speed (median days from report to fix over the last 12 months; 14 days = half), 20% closes vs new issues in the last 90 days. Services without a repo with 10+ issues are excluded"
}
}
}