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Minecraft Mod Compatibility API (Modrinth via Lodestone)
x402
Minecraft Mod Compatibility API (Modrinth via Lodestone) is a paid API for AI agents from mcapi.jackiscool.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).
Searches the Modrinth mod registry for Minecraft mods, modpacks, shaders, and resource packs filtered by loader and game version, paid per-call via x402.
Price / call$0.003
Success—
StatusUnknown
How this service works
Modrinth mod compatibility checks for agents and modpack tools. 0.01 USDC per call via x402, no signup.
Output
Returns a JSON object with a 'results' array of matching mods/content, each containing at minimum a slug, title, and download count, plus a 'total_hits' integer indicating how many total results exist for the query on Modrinth.
Example use cases
Modpack compatibility checker
“I'm building a Fabric modpack for Minecraft 1.20.4 — can you search Modrinth for optimization mods that support Fabric 1.20.4 and list the top 10 by downloads?”
Shader discovery for new version
“What shaders are available on Modrinth for NeoForge on Minecraft 1.21.1? Show me up to 15 results.”
Agent-driven mod suggestion
“My players want a tech mod for our Forge 1.20.1 server — search Modrinth for tech modpacks compatible with Forge 1.20.1 and return the top 5 most downloaded ones.”
Technical details
Endpoint
GEThttps://mcapi.jackiscool.com/mod-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent or modpack tool needs to programmatically search Modrinth for Minecraft content (mods, modpacks, shaders, resource packs, datapacks, plugins) filtered by loader and game version, without requiring a Modrinth API key or user account — especially useful in agentic pipelines that can pay per-call via x402.
Side effects
- Missing required 'query' parameter returns an error
- Invalid loader value (e.g. misspelled) may return zero results or an error
- Invalid Minecraft version string returns empty results
- Payment failure via x402 blocks the request before execution
- Modrinth upstream downtime causes service unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"results": [
{
"slug": "xaeros-minimap",
"title": "Xaero's Minimap",
"downloads": 1000000
}
],
"total_hits": 120
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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