JSON Schema Tools

Validate JSON against a schema with Ajv, infer a schema from samples and diff two schemas.

Connector by basitalisandhu · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 1

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Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/basitalisandhu-mcp-json-schema-tools

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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Validate JSON against a schema with Ajv, infer a schema from samples and diff two schemas.

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 26, 2026.

Tools: 3 read · 0 write · 0 deleteRead-only
Secrets: None asked for
Install scripts: None found
Runs as: Docker image

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 3 · Look things up without changing anything.

diff_schemas
infer_schema
validate_json

Network hosts it talks to 2

basitalisandhu.github.io · found in code
github.com · found in code

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

diff_schemasDiff two JSON Schemasread-only
Compare two JSON Schemas structurally and list every change with its path, the before and after values, and an impact: breaking (a document valid under the old schema can now be rejected: required added, property removed with additionalProperties false, type narrowed, enum value removed, tighter min/max), compatible (every old document stays valid), or review (composition keywords, changed patterns or formats). Walks properties, required, additionalProperties, items, enum, numeric and length bounds, pattern, format, $ref and annotations. oneOf/anyOf/allOf and conditionals are compared as a who…
infer_schemaInfer a schema from sample JSONread-only
Build a JSON Schema (draft 2020-12) that describes the given samples: a single document or an array of documents (each sample is one document; wrap one array document as [[...]]). Properties present in every sample become required; types seen across samples are unioned; nested objects and array items are inferred recursively; strings that all look like a date-time, date, time, email, uuid, uri or ipv4 get a format. With enum_threshold above 0, string properties with few distinct values across at least three samples become enums. The result is a starting point to edit, not a complete contract.
validate_jsonValidate JSON against a schemaread-only
Validate a JSON document against a JSON Schema. The draft is read from $schema (draft-07 when absent) unless draft is given. Formats such as email, uri, date-time and uuid are checked. Returns valid, the draft used, the total error count and up to 200 errors with instance path (JSON Pointer), schema path, keyword, message and params. Unknown keywords are ignored (Ajv strict mode is off). Draft-04 and draft-06 schemas are rejected.

Signals

Stars: 1
Forks: 3
Open issues: 5
Last commit (this folder): Oct 18, 2026 (19 days ago)
Last release: Oct 28, 2026 (9 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.basitalisandhu/mcp-json-schema-tools
Version: 0.3.0
Auth: No auth
Packages: oci ghcr.io/basitalisandhu/mcp-json-schema-tools:0.3.0
License: MIT
Repository: github.com/basitalisandhu/dev-mcp-servers
Website: basitalisandhu.github.io/dev-mcp-servers/
First seen: Oct 24, 2026
Last checked: Nov 1, 2026
Source: Official MCP Registry github-graphql

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JSON Schema Tools MCP server. Agent Mart. https://agentmart.dev/connectors/basitalisandhu-mcp-json-schema-tools (last updated 2026-11-01)