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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
19,924measured
6,554proven reliable
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
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
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 Markdown Mermaid Syntax Lint Healer Not measured yet

LLM output Mermaid diagram linting, unquoted bracket healing, and syntax normalization engine

Package mcpb : https://github.com/Alpha-Park/genpark-markdown-mermaid-syntax-lint-healer-skill/releases/download/v1.0.1/genpark-markdown-mermaid-syntax-lint-healer-skill.mcpb · 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
JSONShelf Reliable (measured) · 100% over 3 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 Not measured yet

JSON Schema, TypeScript types, mocks for AI agents

Package npm : @rog0x/mcp-schema-tools · website · measurements and details
json-schema-store-mcp Not measured yet

Browse the JSON Schema Store catalog. No key required.

Package npm : json-schema-store-mcp · website · measurements and details
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
jsonaut Reliable (measured) · 100% over 3 checks

Repair malformed JSON from LLM/agent output; optional JSON Schema coercion. Free + x402 paid.

MCP endpoint : https://jsonaut.jsonaut-shaurya.workers.dev/mcp · 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-repair-mcp Not measured yet

Repairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe.

Package npm : json-repair-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
FixMyJSON Reliable (measured) · 100% over 14 checks

Repair broken LLM JSON and check it against a JSON Schema. Flags cut-off output. Free trial.

MCP endpoint : https://fixmyjson-api.onrender.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
GenPark Hybrid Bounding Box OCR Table Reconstructor Not measured yet

Spatial clustering 2D grid reconstructor converting OCR boxes into Markdown tables

Package mcpb : https://github.com/Alpha-Park/genpark-hybrid-bounding-box-ocr-table-reconstructor-skill/releases/download/v1.0.1/genpark-ocr-table.mcpb · website · measurements and details
MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errors Reliable (measured) · 100% over 42 checks Does the job (tested) · 42/42

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

MCP endpoint : https://www.pathwren.workers.dev/c/mcp-registry-official/mcp/lint · website · measurements and details
Recursive Support Oracle Being measured · 0% over 1 checks

AI support agent platform for small businesses. Query pricing, features, and examples.

MCP endpoint : https://recursive.support/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
GenPark Audio Packet Jitter Resilience Buffer Not measured yet

Adaptive WebRTC jitter buffer simulation and inter-arrival jitter telemetry

Package mcpb : https://github.com/Alpha-Park/genpark-audio-packet-jitter-resilience-buffer-skill/releases/download/v1.0.1/genpark-jitter-buffer.mcpb · website · measurements and details

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