Tanod Text

utilpeek: spellcheck a text

text_spellcheck

Read-onlyIdempotent

utilpeek: Spellcheck a text with suggestions. Returns the words not in the language's word-frequency dictionary (pyspellchecker), with positions (offset, line, column) and up to max_suggestions suggestions by edit distance; numbers, acronyms, CamelCase, URLs and emails are skipped. A dictionary lookup, not grammar or context aware. Input: text, optional language and max_suggestions. Typically under 1 s (up to 2 s on a language's first use). Price: USD 0.002. Free: 10 utilpeek calls per IP per UTC day. Tanod does not log or store the submitted text; it is processed in memory for this answer. Docs: https://tanod.dev/learn/spell-check-api.html

Input Schema

TableJSON Schema

Name	Required	Description	Default
`text`	Yes	The text (at most 200,000 characters).
`language`	No	Dictionary: en (default), es, fr, de or pt.	en
`max_suggestions`	No	Corrections suggested per misspelled word (0-10, default 5).

Output Schema

TableJSON Schema

Name	Required	Description
`note`	No
`error`	No	Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object.
`source`	No
`language`	No
`truncated`	No
`misspelled`	No
`words_checked`	No
`misspelled_unique`	No
`suggestions_incomplete`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedOct 8, 2026

addedInput schema / properties / language / description

Added value: +"Dictionary: en (default), es, fr, de or pt."

addedInput schema / properties / max_suggestions / description

Added value: +"Corrections suggested per misspelled word (0-10, default 5)."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "error": {
+      "description": "Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object."
+    },
+    "language": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "misspelled": {
+      "items": {
+        "properties": {
+          "count": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "positions": {
+            "type": [
+              "array",
+              "null"
+            ]
+          },
+          "suggestions": {
+            "type": [
+              "array",
+              "null"
+            ]
+          },
+          "word": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "type": [
+          "object",
+          "null"
+        ]
+      },
+      "type": [
+        "array",
+        "null"
+      ]
+    },
+    "misspelled_unique": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "note": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "source": {
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "suggestions_incomplete": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "truncated": {
+      "type": [
+        "boolean",
+        "null"
+      ]
+    },
+    "words_checked": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    }
+  },
+  "type": "object"
+}

First observedOct 8, 2026

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