ELYREON Payload Validator
Deterministic, read-only JSON payload validation (bounded JSON Schema 2020-12 subset).
MCP server · by colt2822
About
ELYREON Payload Validator is an MCP server published by colt2822. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-11-07 and have recorded no change since. As of our marketplace pass on 2026-11-07.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
Requires: Authorization header
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http payload-validator https://elyreon-payload-validator.colt2822.workers.dev/mcp --header "Authorization: Bearer <YOUR_TOKEN>"[mcp_servers.payload-validator]
url = "https://elyreon-payload-validator.colt2822.workers.dev/mcp"
http_headers = { "Authorization" = "Bearer <YOUR_TOKEN>" }{
"mcpServers": {
"payload-validator": {
"url": "https://elyreon-payload-validator.colt2822.workers.dev/mcp",
"headers": {
"Authorization": "Bearer <YOUR_TOKEN>"
}
}
}
}Replace the values in angle brackets with your own. We show the names of the settings, never values.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.1 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
Possibly the same plugin
Listings that share a signal with this one but not enough for us to treat them as the same product.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
GenPark JSON Schema Contract Validator
Zero-dependency JSON schema subset validator ensuring LLM structured outputs strictly conform to con
-
ELYREON JSON Schema Payload Validator
JSON Schema validator for API payloads via MCP: bounded checks and structured pass/fail errors.
-
Deterministic JSON Schema validation with exact violations and conservative type normalization.
-
GenPark Recursive JSON Schema Healer
Recursive JSON schema validator and autonomous healer repairing type mismatches, missing defaults, a
-
JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.
-
Deterministic inspect, safe repair, and JSON Schema validation for agent JSON. No LLM.
-
validator-ai-mcp io.github.CSOAI-ORG/validator-ai-mcp
AI-powered validator ai MCP server for agents. Supports validate json, validate email, validate
-
Validate JSON against a schema with Ajv, infer a schema from samples and diff two schemas.
-
Repair broken LLM JSON and check it against a JSON Schema. Flags cut-off output. Free trial.
-
Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Offline Ed25519 receipt verifier — checks signed decision receipts, agent manifests, and audit bundles without contacting any server.
-
Accuracy-first FHIR R4/R4B/R5 skill for JSON formatting and reasoning. It labels claims as normative/version-delta/profile-dependent/practice, requires source-backed normative…
-
Records is a local-first FHIR validation and data-quality workflow plugin for Claude Code. It helps FHIR developers, IG authors, and AI agents validate FHIR JSON, explain…
-
Audit your Claude plugins, skills, and coding agents against the SOSA methodology — Supervised Orchestrated Secured Agents. Scans your entire plugin ecosystem and evaluates each…
-
Secure environment variable management with Varlock for secrets, API keys, credentials, and sensitive configuration.
Has a listing on Claude Code: claude-plugins-official (5)
-
Automate API security directly in Claude Code with 42Crunch - automatically audit OpenAPI specs, detect vulnerabilities aligned with OWASP API Security risks (including…
-
The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…
-
Create, edit, and deploy ServiceNow applications with the Fluent SDK effortlessly through Claude AI.
-
Set up endorctl and use Endor Labs to scan, prioritize, and fix security risks across your software supply chain
-
Easily create custom hooks to prevent unwanted behaviors by analyzing conversation patterns or from explicit instructions. Define rules via simple markdown files.
Has a listing on Claude: knowledge-work-plugins (5)
-
The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…
-
Create, edit, and deploy ServiceNow applications with the Fluent SDK effortlessly through Claude AI.
-
Security review for Claude-generated code. Pattern-based warnings on edits, LLM-powered diff review on Stop, and an agentic commit reviewer that catches injection, XSS, SSRF…
-
Configure, run, and interpret HawkScan DAST results inside Claude Code. Generates stackhawk.yml configs, runs scans via CLI or Docker, and transforms security findings into…
-
Carta Cap Table plugin — skills and hooks for querying cap tables, grants, SAFEs, 409A valuations, waterfall scenarios, and more
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
-
Codex Security workflows for security scans, analysis, and investigation.
-
Available for US1 customers only. Analyze, investigate, and act on your Datadog telemetry directly from ChatGPT using natural language. Ask questions about your production…
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
Has a listing on Community GitHub marketplaces (5)
-
Schema validation, data quality monitoring, streaming validation pipelines, and input validation for backend APIs
-
Schema validation, data quality monitoring, streaming validation pipelines, and input validation for backend APIs
-
Validate and serialize data with Pydantic — modeling patterns, constraints, custom validators, coercion, and discriminated unions
-
Deterministic ALCOA+ data-integrity linter: checks Attributable / Contemporaneous / Complete / Accurate / Consistent in code and surfaces the human-judgment slice as a 【待補…
-
Validate and format JSON files with schema support
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Validate Azure application architectures and infrastructure-as-code for resiliency gaps, generate new resilient templates, and review existing templates.
-
Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.
-
Mastercard Developers plugin to help build integrations with Mastercard APIs, including best practices and the Mastercard Developers MCP server.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
Advanced Security plugin for GitHub Copilot.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
model-apps
Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…
Has a listing on Cursor: cursor/plugins (5)
-
Query and remediate compliance tests, controls, frameworks, risks, and vulnerabilities in Vanta.
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
-
Build apps, scripts, and automations with the TypeScript SDK.
-
Create and edit forms, then read submissions.
-
Scaffold and validate new agent plugins.
Has a listing on Docker MCP Catalog (5)
-
Fetch, validate, and generate code or curl from any OpenAPI or Swagger spec - all from a single URL.
-
mcp-neo4j-data-modeling io.github.neo4j-contrib/mcp-neo4j-data-modeling
A simple Neo4j MCP server for creating graph data models.
-
Give your AI agents trusted access to the full Postman platform.
-
MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J.
-
Comprehensive MCP server for Kafka Schema Registry operations. Features multi-registry support, schema contexts, migration tools, OAuth authentication, and 57+ tools for complete…
Has a listing on Official MCP Registry (5)
-
GenPark JSON Schema Contract Validator
Zero-dependency JSON schema subset validator ensuring LLM structured outputs strictly conform to con
-
ELYREON JSON Schema Payload Validator
JSON Schema validator for API payloads via MCP: bounded checks and structured pass/fail errors.
-
Deterministic JSON Schema validation with exact violations and conservative type normalization.
-
GenPark Recursive JSON Schema Healer
Recursive JSON schema validator and autonomous healer repairing type mismatches, missing defaults, a
-
JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.
Has a listing on PyPI (MCP servers) (5)
-
Shared core for schema-driven MCP servers over Russian business APIs: catalog, safety gating, HTTP client, credential store
-
Deploy production REST and Neo4j Graph APIs from JSON schemas in seconds.
-
AI agent tools for Open Security Controls Assessment Language (OSCAL)
-
csoai-governance-crosswalk-mcp
Csoai Governance Crosswalk MCP server. Tools: query crosswalk, crosswalk bridge, compliance gap anal
-
adif-mcp io.github.qso-graph/adif-mcp
ADIF 3.1.7 spec engine for amateur radio logs: validation, parsing, enumerations, geospatial.
Has a listing on npm registry (MCP servers) (5)
-
Ask Vulnify before an AI agent acts. Check, record, and read policy decisions.
-
Verify SCITT receipts from Forestrie transparency logs, offline
Verify a SCITT receipt under a trust root you hold — offline, no backend, no key, no network
-
Lint Jev and Luna decision-model questions, or ask the model to check them with your key.
-
One API, all things verified — control, delegation, human approval, anti-impersonation.
-
Validate Formhaus form definitions and simulate multi-step paths against the real engine.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.