spintax.net MCP server
Write, validate, render and analyze spintax templates. Backed by @spintax/core. No auth.
Connect it
Settings → Connectors → Add custom connector
URL: https://spintax.net/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://spintax.net/mcp{
"mcpServers": {
"mcp": {
"url": "https://spintax.net/mcp"
}
}
}claude mcp add --transport http mcp https://spintax.net/mcp{
"servers": {
"mcp": {
"type": "http",
"url": "https://spintax.net/mcp"
}
}
}{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@spintax/mcp@0.4.2"
]
}
}
}claude mcp add mcp -- npx -y @spintax/mcp@0.4.24 tools, verified live
validate_spintaxread-onlyStatic validation: returns diagnostics with severity, stable code, message and 1-based line/column. No "error"-severity diagnostic means the template is structurally sound — read the warnings before rendering, because some of them (plural.locale-missing) mean a block will not resolve. Pass knownVariables for names you will supply at render time to silence their variable.undefined warnings.
render_spintaxread-onlyRenders up to 20 variants. With a seed the output is deterministic (variant i uses seed "<seed>#<i>"); without one it is random. The engine is lenient: structural mistakes never throw, they surface in the output — run validate_spintax first.
analyze_spintaxread-onlyReports what the template needs and contains: refs (variables referenced), sets (#set macros, re-picked per reference), defs (#def, rolled once per render), includes, diagnostics, and best-effort construct counts. Answers "what variables must I supply" — it is NOT a variant-cardinality counter.
spintax_authoring_guideread-onlyRead this BEFORE writing or editing a spintax template — it is the canonical authoring guide the whole spintax toolchain is written against, not a tutorial. Pass the locale you will author in: for ru/uk/be and sr/hr/bs it carries the agreement and case rules that decide whether the variants read as human writing, which is the hard part and the part a valid template can still get wrong; for ar, the
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