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MCP servers tagged json-schema

117 live MCP servers tagged "json-schema", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with json-schema.

117
live servers
36
avg trust
5.9K
most stars
101

Tool Schema Fuzzer

mizcausevic-dev

Generate adversarial test cases from an MCP tools/list: valid-minimal, missing-required, wrong-type, extra-field, boundary, enum-violation. Each carries an expected accept/reject…

34
102

Agent Runtime Operations Protocol

gmslll

AROP — the open, vendor-neutral Agent Runtime Operations Protocol: publish, register, authorize, dispatch, stream, trace, audit, and retire AI agents across any framework. Complem…

34
103

Pitstop Machines

B-AI-bot

Open contract for metered, agent-executable tools: manifest spec, sandbox contract, dev runner, and reference machines for MCP-native marketplaces

34
104

Passmcp Reporting

sebastienrousseau

The passmcp attestation format for MCP servers, its JSON Schemas and offline verifier, the security graph model, and an agentgateway processor that enforces it.

34
105

Toolstrict

jay-tank

Lint LLM tool/function-calling INPUT schemas for strictness - loose schemas cause hallucinated/invalid arguments. Flags no-required, open additionalProperties, or untyped properti…

34
106

Tooldelta

arcnosixta

Offline MCP contract diffs. Catch breaking tool changes before your agents do. Zero runtime dependencies.

34
107

Agentproof

pedronavarro-labs

Experimental assurance manifests and policy checks for AI agents and MCP integrations. Local CLI, synthetic fixtures and GitHub Action.

34
108

Xul J

xul-j

Stream JSON-ized XUL: a server-driven UI protocol over SSE or MQTT

34
109

Aladdin Spec

rozannaparasitical577

Define portable, verifiable, and versioned knowledge packs for trusted AI systems and RAG applications.

34
110

Scalpstream Com

api-evangelist

ScalpStream operates a family of machine-payable data APIs built for autonomous agents: RecallScout (active US FDA, NHTSA and CPSC recalls with severity normalised across the thre…

34
111

Rc Check

basitalisandhu

MCP specification migration checker for the 2026-07-28 revision: scans a live stdio or HTTP server, a saved dump or a client config, flags removed, changed and deprecated construc…

34
112

Covenant

studiomeyer-io

Contract & breaking-change detector for MCP servers — semver for your interface. Snapshot tools/resources/prompts into a lockfile, diff in CI, fail on breaking changes. Single Rus…

updated 5 days ago
34
113

Mcplint

srivtx

Audit MCP servers before your agent connects: schema, token-cost, and risk checks, offline.

updated 27 days ago
34
114

Vidodo

TheSmallBoat

Externally planned audiovisual system for composition, compilation, scheduling, runtime execution, and live patch control.

updated 6 months ago
34
115

Validator

eruens

Validate MCP server configuration files against the Model Context Protocol specification - catch misconfigurations before they cause failures.

updated 2 months ago
34
116

Va Auto Pilot

No description published.

30
117

Apitype

jayesh-bansal

No description published.

updated 4 months ago
30
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