Json Schema Validator MCP server
Validates JSON against a JSON Schema, lists violations. x402 payment required (testnet USDC).
C67/100grade C
Adoption
New
Little public usage data yet
Reviews
Write oneNobody has reviewed Json Schema Validator yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
Json Schema Validator tools (1)
write = sends, deletes, buys or postsjson_schema_validatorFreeValidates JSON against a JSON Schema, lists violations. x402 payment required (Base mainnet USDC).
Public scan report
scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it
1 low
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 1003ms20/20
- Tool poisoning1 tool descriptions checked15/15
- Auth qualityopen endpoint, read-only tools10/15
- Maintenanceno repository listed3/15
- Maintainer identityno repository or website to verify2/10
Findings (1)
- lowNo source repository listed
maint.no-repo
Overall 67/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON
Install directly
claude mcp add --transport http json-schema-validator https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp
Json Schema Validator: common questions
- Is Json Schema Validator MCP server safe?
- With care: it is graded C, so read the findings first (67/100). Read the Json Schema Validator safety report
- How do I install Json Schema Validator?
- It runs remotely at faceted-napped-debtless.ngrok-free.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Json Schema Validator need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Json Schema Validator maintained?
- The latest release is v1.0.92934.
- Is Json Schema Validator up?
- 100% of our last 5 checks got an answer. We check remote servers about four times a day.
- What can I use instead of Json Schema Validator?
- Servers from other publishers that do the same job: X402 List MCP server, Agent402.Tools: pay-per-call web tools MCP server and PipRail MCP server. Compare all Json Schema Validator alternatives.
Alternatives to Json Schema Validator
Same job from other publishers: the closest match first, then the best rated.
- X402 ListFind and vet x402 payment APIs before your agent pays one: uptime, price, on-chain volume.not reviewedEstablishedA
- Agent402.Tools: pay-per-call web toolsAgentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, free via PoW or card creditsnot reviewedEstablishedA
- PipRailBudget-bound x402 payment wallet for AI agents — pays HTTP 402 URLs, capped locally. No backend.not reviewedGrowingB
POPCORN MCPSigned time and SHA-256 witness receipts for agents, with offline verification and x402 payment.not reviewedGrowingB- X402 Data GatewayPaid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.not reviewedGrowingB