Quality gates
7,902 rows, by stacks then stars
2,127 of these skill files have been read, by 1,524 distinct authors, and what they tell an agent counted. What Quality gates authors agree on, and what they forbid
cybercraftsolutionsllc/trust-gated-agent-example/com.craftedtrust/mcp-shield MCP server
0★ repoTrust verification for MCP servers. Check scores, scan for security issues, search 4,200+ servers.
OksigeniaSL/checker-mcp/com.oksigenia/checker-mcp MCP server
0★ repoDomain security & privacy checker as an MCP server. 17 live checks, 0-100 score, local-first.
paladinfi/trust-check-mcp/com.paladinfi/trust-check-mcp MCP server
0★ repoFree OFAC SDN wallet screen + sample preview for AI agents on Base. Read-only, no payment surface.
james-sib/verifly-mcp-server/email.verifly/verifly MCP server
no license0★ repoEmail verification for AI agents — verify, clean & validate emails; self-onboard + crypto pay
Br0ski777/address-validator-x402/io.github.Br0ski777/address-validator MCP server
0★ repoParse, validate and normalize postal addresses. Detect country, verify format. x402.
Br0ski777/airdrop-checker-x402/io.github.Br0ski777/airdrop-checker MCP server
0★ repoCheck wallet eligibility for active crypto airdrops — LayerZero, EigenLayer, Scroll. x402.
Br0ski777/email-verification-x402/io.github.Br0ski777/email-verification MCP server
0★ repoVerify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC.
Br0ski777/fact-checker-x402/io.github.Br0ski777/fact-checker MCP server
0★ repoVerify claims with web evidence. Returns sources and verdict. x402 micropayment.
Br0ski777/json-validator-x402/io.github.Br0ski777/json-validator MCP server
0★ repoJSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.
Br0ski777/phone-validation-x402/io.github.Br0ski777/phone-validation MCP server
0★ repoValidate phone numbers worldwide: carrier, line type, country, E.164. x402.
Br0ski777/sms-validator-x402/io.github.Br0ski777/sms-validator MCP server
0★ repoValidate SMS-capable phone numbers — mobile vs landline, E.164 format. x402 micropayment.
Br0ski777/ssl-checker-x402/io.github.Br0ski777/ssl-checker MCP server
0★ repoSSL certificate check — validity, expiry, issuer, chain, grade. x402 micropayment.
CSOAI-ORG/blockchain-verification-mcp/io.github.CSOAI-ORG/blockchain-verification-mcp MCP server
0★ repoBlockchain Verification MCP Server by MEOK AI Labs
CSOAI-ORG/config-validator-ai-mcp/io.github.CSOAI-ORG/config-validator-ai-mcp MCP server
0★ repoConfig Validator Ai MCP Server by MEOK AI Labs
CSOAI-ORG/email-validator-ai-mcp/io.github.CSOAI-ORG/email-validator-ai-mcp MCP server
0★ repoemail-validator-ai-mcp MCP server by MEOK AI Labs
CSOAI-ORG/health-check-ai-mcp/io.github.CSOAI-ORG/health-check-ai-mcp MCP server
0★ repohealth-check-ai-mcp MCP server by MEOK AI Labs
CSOAI-ORG/insurance-verification-mcp/io.github.CSOAI-ORG/insurance-verification-mcp MCP server
0★ repoinsurance-verification-mcp MCP server by MEOK AI Labs
CSOAI-ORG/license-checker-ai-mcp/io.github.CSOAI-ORG/license-checker-ai-mcp MCP server
0★ repolicense-checker-ai-mcp MCP server by MEOK AI Labs
CSOAI-ORG/plagiarism-checker-ai-mcp/io.github.CSOAI-ORG/plagiarism-checker-ai-mcp MCP server
0★ repoplagiarism-checker-ai-mcp MCP server by MEOK AI Labs
CSOAI-ORG/schema-validator-ai-mcp/io.github.CSOAI-ORG/schema-validator-ai-mcp MCP server
0★ reposchema-validator-ai-mcp MCP server by MEOK AI Labs
CSOAI-ORG/seo-checker-ai-mcp/io.github.CSOAI-ORG/seo-checker-ai-mcp MCP server
0★ reposeo-checker-ai-mcp MCP server by MEOK AI Labs
CSOAI-ORG/validator-ai-mcp/io.github.CSOAI-ORG/validator-ai-mcp MCP server
no license0★ repoAI-powered validator ai MCP server for agents. Supports validate json, validate email, validate
CseperkePapp/design-constraint-validator/io.github.CseperkePapp/design-constraint-validator MCP server
0★ repoValidate design tokens for accessibility, scales, and design-system constraint consistency.
FoundryNet/fact-check-mcp/io.github.FoundryNet/fact-check-mcp MCP server
0★ repoVerify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.
FoundryNet/email-verify-mcp/io.github.FoundryNet/email-verify-mcp MCP server
0★ repoVerify emails — deliverability, disposable/role/free detection, MX validity, domain age.
FreeGuy-AI/closeread-verify/io.github.FreeGuy-AI/closeread-verify MCP server
no license0★ repoA verified dependency-audit verdict any AI agent can call over MCP, not a raw scan.
HiroyukiFuruno/katana-markdown-linter/io.github.HiroyukiFuruno/kml MCP server
0★ repoMarkdown linter, workspace-scoped stdio MCP server, and self-hosted text-only remote MCP server.
Kavachh/agent-guard-mcp/io.github.Kavachh/agent-guard-mcp MCP server
0★ repoGit-aware safe file ops for AI agents: delete anything except git-tracked source code.
Contractor License Verification (TradesAPI)
Noquarter6/contractor-license-mcp-server/io.github.Noquarter6/contractor-license-mcp-server MCP server
0★ repoVerify contractor licenses: 50 states + DC + 8 cities — status, expiration, disciplinary history.
OjasKord/document-integrity-validator-mcp/io.github.OjasKord/document-integrity-validator-mcp MCP server
0★ repoAI reasoning checks any document against known international standards before your agent acts on it.
OjasKord/quantum-suitability-validator-mcp-server/io.github.OjasKord/quantum-suitability-validator-mcp-server MCP server
0★ repoAI triage for quantum computing POC proposals. Screens before budget is allocated.
OjasKord/vat-validator-mcp/io.github.OjasKord/vat-validator-mcp MCP server
0★ repoValidate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.
Perf-Technology/perf-mcp/io.github.Perf-AI/perf-mcp MCP server
0★ repoFact-check and fix AI outputs. Hallucination detection, schema validation, auto-repair.
SolomonisBlack/tollbooth-x402/io.github.SolomonisBlack/tollbooth-x402 MCP server
no license0★ repoDiscover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.
UnbearableDev/hu-postcode-validator/io.github.UnbearableDev/hu-postcode-validator MCP server
no license0★ repoHungarian postcode lookup + validation - 3,484 codes, sub-10ms lookups, bulk address endpoint.
WeAreBraveLabs/domain-checker-mcp/io.github.WeAreBraveLabs/domain-checker-mcp MCP server
0★ repoFast domain availability checker. DNS + RDAP/WHOIS verification.
agenson-tools/agent-output-guard-mcp/io.github.agenson-horrowitz/agent-output-guard MCP server
0★ repoValidate and verify data from other agents before acting on it. Zero LLM costs.
agenson-tools/structured-data-validator-mcp/io.github.agenson-horrowitz/structured-data-validator MCP server
0★ repoValidate, transform, and normalize structured data for AI agents.
apifymcpfactory-droid/mcp-factory-servers/io.github.apifymcpfactory-droid/eu-vat-validator MCP server
no license0★ repoBulk-validates EU VAT numbers against the European Commission's official VIES service.
atomno-mcp/mcp-erid/io.github.atomno-mcp/mcp-erid MCP server
0★ repoRussian ad marking (38-FZ) checker: erid validation, ad-page audit, compliance hints.
bolyra/bolyra/io.github.bolyra/gateway MCP server
0★ repoMCP auth gateway: verify agent identity, enforce per-tool permissions, block replays, emit receipts.
commit-check/commit-check-mcp/io.github.commit-check/commit-check-mcp MCP server
0★ repoValidate commit messages, branch names, author info, push safety, and repo state.
Fulcrum-Enterprises/verify-proof/io.github.csolomon0704-prog/verify-proof MCP server
0★ repoVerify blockchain-anchored timestamp proofs offline. No network calls, account, or API key.
dgtalquantumleap-ai/scope-guard-mcp/io.github.dgtalquantumleap-ai/ebenova-scope-guard MCP server
no license0★ repoAI contract scope violation detector. Detect scope creep, draft responses.
guptaprakhariitr/drug-interaction-mcp/io.github.guptaprakhariitr/drug-interaction-mcp MCP server
no license0★ repoDrug-drug interaction checker for clinical LLMs using RxNorm and DailyMed.
guptaprakhariitr/gst-validator-mcp/io.github.guptaprakhariitr/gst-validator-mcp MCP server
0★ repoValidate Indian GSTINs locally (Verhoeff), extract PAN, identify issuing state.
healersfind-alt/organic-web-checker-mcp/io.github.healersfind-alt/organic-web-checker MCP server
no license0★ repoUSDA NOP organic compliance checks — operation websites vs live OID certificate data.
hernaninverso/eleata-verify-mcp/io.github.hernaninverso/eleata-verify-mcp MCP server
no license0★ repoGrounding/hallucination guard: verify a claim against evidence (Supported/Refuted/NEE).
hernaninverso/eleata-einvoice-mcp/io.github.hernaninverso/eleata-einvoice-mcp MCP server
no license0★ repoValidate EU e-invoices (Peppol, XRechnung, Factur-X, UBL, CII) and explain error codes.
iinniitt/defi-guard-mcp/io.github.iinniitt/defi-guard-mcp MCP server
0★ repoDeFi safety checks on Base before you sign: honeypot, owner-power scan, approval risk, Aave health.
infraveilhq/infraveil-guard/io.github.infraveilhq/agent-guard MCP server
0★ repoGate an AI agent's destructive actions behind human approval, with a tamper-evident log.
jayjodev/vivory-mcp/io.github.jayjodev/vivory-mcp-verification MCP server
no license0★ repo98 MCP tools for verifiable AI: citations, law, KYB, peer review, forecast, media provenance.
lazymac2x/api-contract-validator-api/io.github.lazymac2x/api-contract-validator MCP server
no license0★ repoCloudflare Workers MCP server: api-contract-validator
lazymac2x/email-validator-api/io.github.lazymac2x/email-validator MCP server
no license0★ repoCloudflare Workers MCP server: email-validator
lazymac2x/env-blueprint-validator-api/io.github.lazymac2x/env-blueprint-validator MCP server
no license0★ repoCloudflare Workers MCP server: env-blueprint-validator
lazymac2x/claude-skill-validator-api/io.github.lazymac2x/claude-skill-validator MCP server
no license0★ repoCloudflare Workers MCP server: claude-skill-validator
liminalpepe/agent-guard-mcp/io.github.liminalpepe/agent-guard-mcp MCP server
0★ repoVerify-before-act safety checks for AI agents: packages, lockfiles, manifests, CI workflows.
lmaniraruta/license-verify-mcp/io.github.lmaniraruta/license-verify-mcp MCP server
0★ repoVerify US contractor license + surety bond + insurance from official state data. WA live, CA beta.
mdfifty50-boop/agent-guard-mcp/io.github.mdfifty50-boop/agent-guard MCP server
no license0★ repoConstitutional guardrails and loop detection for AI agents
mdfifty50-boop/qc-validator-mcp/io.github.mdfifty50-boop/qc-validator MCP server
no license0★ repoOutput quality control and validation for AI agents