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Deterministic JSON repair, validate, example-gen, schema-coerce for agents. Zero LLM, sub-10ms.
Deterministic JSON repair, validate, example-gen, schema-coerce for agents. Zero LLM, sub-10ms.
Remote endpoints: streamable-http: https://jsonshelf.vercel.app/mcp
Valid MCP server (1 strong, 1 medium validity signals). 5 known CVEs in dependencies Imported from the Official MCP Registry.
4 tools verified · Open access · 5 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
This plugin requests these system permissions. Most are normal for its category.
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-walkojas-boop-jsonshelf": {
"url": "https://jsonshelf.vercel.app/mcp"
}
}
}From the project's GitHub README.
Deterministic JSON repair, validation, example-generation, and schema-coercion for AI agents. Zero LLM calls. Sub-10ms. $0.0005 per call. Agents only.
Live endpoint: https://jsonshelf.vercel.app/
curl https://jsonshelf.vercel.app/ returns a full machine-readable manifest. No HTML. No humans.
Four tools, all pure compute, 100% deterministic:
| Endpoint | Purpose |
|---|---|
POST /v1/repair | Fix malformed JSON. Optional schema to conform to. |
POST /v1/validate | Validate JSON against a schema. Returns structured errors with fix fields telling the agent exactly what to change. |
POST /v1/example | Generate a minimal valid example from a JSON schema. |
POST /v1/coerce | Soft-cast values to match a schema (e.g. "42" → 42 for integer fields). |
Every error response includes { error, code, message, fix, docs, http_status } — agents never have to guess.
GET /.well-known/ai-plugin.json — OpenAI plugin manifestGET /.well-known/mcp.json — MCP server manifestGET /llms.txt — machine-readable docsGET /openapi.json — OpenAPI 3.1 specGET /v1/pricing — machine-readable pricingGET /v1/errors — full error catalog# 1. Issue a key (100 free credits)
curl -X POST https://jsonshelf.vercel.app/v1/keys
# 2. Use the key
curl -X POST https://jsonshelf.vercel.app/v1/repair \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{"input":"{name:\"alice\", skills:[\"code\",]}"}'
Prepaid credits. Single POST returns a payment URL the agent follows autonomously:
curl -X POST https://jsonshelf.vercel.app/v1/credits \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{"pack":"starter"}'
Returns { payment_url, x402: { ... } }. x402 headers are emitted for protocol-compatible clients.
Use over HTTP at https://jsonshelf.vercel.app/mcp (JSON-RPC 2.0, protocol version 2024-11-05). Four tools: jsonshelf_repair, jsonshelf_validate, jsonshelf_example, jsonshelf_coerce.
Apache 2.0.
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