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The real catalog of tools for AI agents

Google tells you what exists. Faceabot tells you what holds up.

44,737real tools
29,284callable over HTTPS
19,897measured
6,296proven reliable
json-schema-validator Reliable (measured) · 100% over 7 checks

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

MCP endpoint : https://faceted-napped-debtless.ngrok-free.dev/json-schema-validator/mcp · measurements and details
GenPark Streaming NDJSON & JSONL Schema Validator Not measured yet

Ultra-low-latency incremental line validator with chunk boundary reassembly and schema auditing

Package mcpb : https://github.com/Alpha-Park/genpark-streaming-ndjson-jsonl-schema-validator-skill/releases/download/v1.0.1/genpark-streaming-ndjson-jsonl-schema-validator-skill.mcpb · website · measurements and details
GenPark Recursive JSON Schema Healer Not measured yet

Recursive JSON schema validator and autonomous healer repairing type mismatches, missing defaults, a

Package mcpb : https://github.com/Alpha-Park/genpark-recursive-json-schema-healer-skill/releases/download/v1.0.1/genpark-recursive-json-schema-healer-skill-v1.0.1.mcpb · website · measurements and details
JSON Validator API Being measured · 0% over 1 checks

JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.

MCP endpoint : https://json-validator.api.klymax402.com/mcp · website · measurements and details
JSON Schema Tools Not measured yet

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

Package oci : ghcr.io/basitalisandhu/mcp-json-schema-tools:0.2.2 · website · measurements and details
JsonMend Reliable (measured) · 100% over 14 checks Fails real tasks · 0/14

Repair broken JSON from LLM output and validate it against a JSON Schema.

MCP endpoint : https://jsonmend.mike-tusa.workers.dev/mcp · website · measurements and details
GenPark Complex Financial Formula Audit Validator Not measured yet

Arithmetic consistency checks and cross-footing validation for financial statements

Package mcpb : https://github.com/Alpha-Park/genpark-complex-financial-formula-audit-validator-skill/releases/download/v1.0.1/genpark-financial-audit.mcpb · website · measurements and details
JSONlify Being measured · 0% over 1 checks

Validate and convert JSONL fine-tuning data across 11 AI providers. 13 tools.

MCP endpoint : https://www.jsonlify.com/api/mcp · website · measurements and details
Jsonschema Being measured · 0% over 1 checks

JSON Schema validation MCP.

MCP endpoint : https://gateway.pipeworx.io/jsonschema/mcp · website · measurements and details
schema-validate Private (key required)

MCP server (stdio): validate JSON against JSON Schema (draft-07 / 2020-12) via the AgentForge API

MCP endpoint : https://apim-agentforge-6lfm33.azure-api.net/schema-validate/mcp · measurements and details
Regex/Email/URL Validator Being measured · 0% over 2 checks

Regex matching, email/URL format validation, and JSON Schema validation.

MCP endpoint : https://apished.com/mcp/v1/validate · website · measurements and details
AgentDiet Deterministic A2A Broken-JSON Repair & Schema Validator Being measured · 100% over 2 checks Real task being tested · 2/2

Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes).

MCP endpoint : https://json-repair.agentdiet.dev/mcp · website · measurements and details
validate Being measured · 50% over 2 checks

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

MCP endpoint : https://api.machinegrade.dev/mcp · website · measurements and details
Agent JSON Reliability Not measured yet

Deterministic inspect, safe repair, and JSON Schema validation for agent JSON. No LLM.

Package pypi : agent-json-reliability · website · measurements and details
schema Not measured yet

JSON Schema, TypeScript types, mocks for AI agents

Package npm : @rog0x/mcp-schema-tools · website · measurements and details
JSONShelf Being measured · 100% over 2 checks

Deterministic JSON repair, validate, example-gen, schema-coerce for agents. Zero LLM, sub-10ms.

MCP endpoint : https://jsonshelf.vercel.app/mcp · website · measurements and details
schema-validator-ai-mcp Not measured yet

Schema Validator Ai MCP Server by MEOK AI Labs

Package pypi : schema-validator-ai-mcp · website · measurements and details
GenPark Distributed Deadlock Wait-For-Graph Detector Not measured yet

Real-time Tarjan SCC cycle detection on lock Wait-For-Graphs with victim transaction arbitrator

Package mcpb : https://github.com/Alpha-Park/genpark-distributed-deadlock-wait-for-graph-detector-skill/releases/download/v1.0.1/genpark-distributed-deadlock-wait-for-graph-detector-skill.mcpb · website · measurements and details
bestjsonformatter Not measured yet

Private, lossless JSON tools for formatting, validation, repair, analysis, querying, and schemas.

Package npm : bestjsonformatter · website · measurements and details
GenPark Vector Embedding Cache Deduplication Sentinel Not measured yet

High-dimensional vector embedding semantic SimHash deduplication sentinel with LRU cache simulation

Package mcpb : https://github.com/Alpha-Park/genpark-vector-embedding-cache-deduplication-sentinel-skill/releases/download/v1.0.1/genpark-vector-embedding-cache-deduplication-sentinel-skill.mcpb · website · measurements and details

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