x402 JSON Repair MCP Server

Repair messy or invalid JSON (the kind LLMs and tools often emit) into clean, valid JSON, and optionally validate/coerce it against a JSON Schema. Pure deterministic compute — no network or model calls. What it fixes: trailing commas, single-quoted strings, unquoted keys, Python literals (None/True/False), NaN/Infinity, Markdown code-fence wrappers, and truncated/garbled tails. When to use: you received text that should be JSON but JSON.parse fails, or you have JSON that must conform to a specific schema and want types coerced (e.g. "36" -> 36, "true" -> true). When NOT to use: the input is already known-valid JSON and no schema check is needed. Args: - input (string, required): the raw/malformed JSON text. - schema (object, optional): a JSON Schema (draft 2020-12) to validate and coerce against. - coerce (boolean, optional, default true): coerce primitive types to satisfy the schema before validating. Returns structuredContent: { "ok": boolean, // true if valid JSON (and schema-valid when a schema was given) "data": any, // the repaired/validated JSON value; null if unfixable "changed": boolean, // true if any repair or coercion modified the input "errors": string[], // actionable messages when ok is false "repairs": string[] // description of each fix applied }

Convert messy tabular text into clean, typed JSON rows. Auto-detects CSV, TSV, or a Markdown table and returns one JSON object per row plus an inferred column/type summary. Pure deterministic compute — no network or model calls. What it handles: delimiter sniffing (comma/semicolon/tab/pipe), quoted fields with embedded commas and newlines, BOM, ragged rows (padded/truncated), Markdown separator rows and escaped pipes, header auto-detection, and per-column type inference (integer/number/boolean/null/string). When to use: you have CSV/TSV/Markdown-table text (often emitted by tools or LLMs) and want structured, typed rows — optionally validated/coerced against a JSON Schema. When NOT to use: the data is already clean JSON, or it is HTML/xlsx/binary (not supported). Args: - input (string, required): raw tabular text. - format ("auto"|"csv"|"tsv"|"markdown", default "auto"): force a format or auto-detect. - hasHeader ("auto"|"true"|"false", default "auto"): whether the first row is a header. - inferTypes (boolean, default true): coerce cells to number/integer/boolean/null; else keep strings. - schema (object, optional): JSON Schema (draft 2020-12) to validate/coerce each row object against. Returns structuredContent: { "ok": boolean, // false if the input cannot be parsed as a table "format": "csv"|"tsv"|"markdown", "columns": [{ "name": string, "type": string }], "rows": [{ ... }], // one object per row, keyed by column name "rowCount": number, "changed": boolean, // true if any normalization/coercion happened "errors": string[], // actionable messages when ok is false "repairs": string[] // description of each normalization applied }