# spintax.net MCP server

> spintax.net MCP server, an MCP server by spintax.net, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Write, validate, render and analyze spintax templates. Backed by @spintax/core. No auth.

- Canonical: https://www.anchorterminal.com/tools/spintax-mcp
- Markdown: https://www.anchorterminal.com/tools/spintax-mcp.md (~750 tokens)
- Slim: https://www.anchorterminal.com/tools/spintax-mcp.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/tools/spintax-mcp.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

# spintax.net MCP server

> Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: MCP server, by spintax.net (https://spintax.net/docs/)
- Listed because: It's published in the registry under spintax.net, a namespace the registry only gives to whoever proves they control that domain.
- What the official MCP registry says: Write, validate, render and analyze spintax templates. Backed by @spintax/core. No auth.

## Facts

- MCP registry: `net.spintax/mcp` 1.2.1
- Endpoint: https://spintax.net/mcp (streamable HTTP)
- Package: npm `@spintax/mcp` (stdio)
- Website: https://spintax.net/docs/
- npm downloads a week: 43
- Registry entry updated: 2026-10-03

## Tools

- Tools it lists (4, about 1,627 tokens of context, `tools/list` without credentials over MCP 2026-07-28, checked 2026-10-04 22:25 UTC):
  - `validate_spintax` (read-only): Static validation: returns diagnostics with severity, stable code, message and 1-based line/column. No "error"-severity diagnostic means the template is…
  - `render_spintax` (read-only): Renders 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:…
  - `analyze_spintax` (read-only): Reports what the template needs and contains: refs (variables referenced), sets (#set macros, re-picked per reference), defs (#def, rolled once per render),…
  - `spintax_authoring_guide` (read-only): Read this BEFORE writing or editing a spintax template — it is the canonical authoring guide the whole spintax toolchain is written against, not a tutorial.…
- How its tools read to an agent (0 errors, 1 warning, 0 notes, about 1,627 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):
  - warn TC11 analyze_spintax: 1 parameter without a description: knownVariables

- JSON: https://www.anchorterminal.com/api/v1/tools/spintax-mcp.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming