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Universal SEO skill for Claude Code. 26 sub-skills + 19 sub-agents covering technical SEO, E-E-A-T, schema, GEO/AEO, agent readiness (Lighthouse Agentic Browsing, WebMCP, llms.txt), backlinks, local SEO, e-commerce, international SEO, Google APIs, and PDF/Excel reporting. 9 optional extensions for live SEO data.
TypeScript-first schema validation with static type inference
GitHub's Online Schema-migration Tool for MySQL
A collection of JSON schema files including full API
1894 live x.ai/bot shares for Grok Bot — every link status-checked, every row attributed. Bilingual EN/中文 catalog with a JSON schema, CI, and a searchable site.
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
An API/Schema registry - stores APIs and Schemas.
Generate Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON/YAML/CSV.
A React component for building Web forms from JSON Schema.
Hive Console is part of the Hive GraphQL platform. Schema registry and analytics for GraphQL federation and other GraphQL APIs
OCSF Schema
The AI-native JSON Gantt chart engine. Dependency-free interactive timelines with React, script-tag, CLI, topological DAG solver, and formal JSON schema.
The Visual JSON Editor. Schema-aware, embeddable, extensible.
🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.
Popular Kubernetes CRDs (CustomResourceDefinition) in JSON schema format.
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
Idempotent schema management for MySQL, PostgreSQL, SQLite, and SQL Server
Dead simple Object schema validation
JSON Schema for PHP
An implementation of the JSON Schema specification for Python
(DEPRECATED for Jackson 3) Module for generating JSON Schema (v3) definitions from POJOs
A language agnostic test suite for the JSON Schema specifications
A C++, header-only library for constructing JSON and JSON-like data formats, with JSON Pointer, JSON Patch, JSON Schema, JSONPath, JMESPath, CSV, MessagePack, CBOR, BSON, UBJSON, toon-format
Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc
Meteor integration package for simpl-schema
Clojure(Script) library for declarative data description and validation
Header-only C++ library for JSON Schema validation, with support for many popular parsers
A collection of Rack middleware to support JSON Schema.
A schema and validator for YAML.
Schema.org - schemas and supporting software