mcpbeat Sign in

JSON Schema Validator MCP Server

answering

JSON Schema Validator is answering right now. Last checked 11 min ago. It exposes 1 tools.

Validates JSON against a JSON Schema, lists violations. x402 payment required (testnet USDC).

Uptime history 8 days of history · worst day 99%
8 days agonow
100.0%
Uptime 24h
92 of 92 checks
1
Tools
read from the server
613 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 5 September 2026. No other catalogue keeps this.

5 Sep a tool description was rewritten json_schema_validator

JSON Schema Validator does not always answer

Over the last week it answered 99.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add json-schema-validator --transport http https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "json-schema-validator": {
      "url": "https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.json-schema-validator]
url = "https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "json-schema-validator": {
      "url": "https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "json-schema-validator": {
      "url": "https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

json
json_schema_validator
Validates JSON against a JSON Schema, lists violations. x402 payment required (Base mainnet USDC).

Endpoints

URLTransportStateLatencyChecked
https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp streamable-http answering 569 ms 11 min ago

Alternatives to JSON Schema Validator

same job, measured the same way
I
Email Validator
by ryuamarines

Validates email syntax and MX records. x402 payment required (testnet USDC).

1 tools answering
I
URL Normalizer
by ryuamarines

Normalizes and deduplicates a list of URLs. x402 payment required (testnet USDC, Base Sepolia).

1 tools answering
I
Email Extractor
by ryuamarines

Extracts emails from texts. x402 payment required (testnet USDC).

1 tools answering
I
App Store Version
by ryuamarines

Checks current App Store version by bundle ID. x402 payment required (testnet USDC).

1 tools answering
I
Robots Txt Checker
by ryuamarines

Checks if a URL path is allowed by robots.txt. x402 payment required (testnet USDC).

1 tools answering
I
Text Slugifier
by ryuamarines

Converts text titles into URL-safe slugs and flags duplicates. x402 payment required (testnet USDC).

1 tools answering
Webhook Tester API
by br0ski777

Test webhook endpoints — send requests, measure latency, validate responses. x402 micropayment.

1 tools answering
S
Seedfast
by seedfa

Generates relationally valid test data in a PostgreSQL database from its live schema.

300 installs/wk local only

JSON Schema Validator — questions

Answers built from our own checks of this server.

What can JSON Schema Validator do?
It exposes 1 tools, read directly from the server on our last check. Among them: json_schema_validator. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is JSON Schema Validator working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 613 ms. The bar chart above shows every period we have measured.
How do I connect JSON Schema Validator?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does JSON Schema Validator need an API key?
No. JSON Schema Validator completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is JSON Schema Validator?
It answers our handshake in 613 ms on average, which is faster than 24% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.