io.github.basitalisandhu/mcp-json-schema-tools
JSON Schema Tools
Is the JSON Schema Tools MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.
Validate JSON against a schema with Ajv, infer a schema from samples and diff two schemas.
alive probed 2026-11-15 · unchanged since 2026-10-29
- Run it
- docker run -i --rm ghcr.io/basitalisandhu/mcp-json-schema-tools:0.3.0 (stdio, probed in a container with the network off)
- Host
- ghcr.io
- Reports itself as
- json-schema-tools 0.3.0
- Capabilities
- tools
- Instructions
- 578 characters
- Of a 1M window
- 0.1 % of a 1M context window
- Count
- 1.4k tokens in Claude Opus 5.5, exact, measured 2026-10-26. With the Claude Code prefix mcp__…__ on each tool name: 1.5k. The o200k_base estimate is 842. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/basitalisandhu/dev-mcp-servers
- Website
- https://basitalisandhu.github.io/dev-mcp-servers/
- Registry
- active, updated 2026-10-28 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.69×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| infer_schema | 480 | 284 | 34 % |
| diff_schemas | 477 | 282 | 33 % |
| validate_json | 467 | 276 | 33 % |
Compare this server with others.
More servers
Other registry entries on ghcr.io, the ones next to this name; all of them.
- arr-mcp io.github.bardesss/arr-mcp · not probed
- Cron Tools io.github.basitalisandhu/mcp-cron-tools · alive
- Dockerfile Lint io.github.basitalisandhu/mcp-dockerfile-lint · alive
- Git Insights io.github.basitalisandhu/mcp-git-insights · alive
- JWT Tools io.github.basitalisandhu/mcp-jwt-tools · alive
- llms.txt io.github.basitalisandhu/mcp-llms-txt · alive
- OpenAPI Lint io.github.basitalisandhu/mcp-openapi-lint · alive
- OSV Advisories io.github.basitalisandhu/mcp-osv-advisories · alive
Servers that mention schema.
- AnomalyArmor ai.anomalyarmor/armor-mcp · needs auth
- Entity Enricher ai.entityenricher/enricher · alive
- ai.getvda/claude-schema-output-agent · newer protocol
- ai.getvda/multi-provider-schema-output-agent · newer protocol
- Schema ai.schemalabs/schema · needs auth
- ai.waystation/postgres · paid (402)
- ai.waystation/supabase · paid (402)
- ai.smithery/afgong-sqlite-mcp-server · not found
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.