MCP Server Directory

Median books com.medianfi/books

Read-only access to a Median customer's ledger, financial reports and transactions. OAuth sign-in.

Who can change a Solana program or EVM contract, dependency advisories, scans. Paid per call (x402).

pigi.finance — DeFi Vault Intelligence io.github.pigi-fi/pigi-mcp

DeFi vault data from pigi.finance: yields, TVL, history and risk ratings across chains.

guide-registry guide.officeleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

DomainDNA dev.workers.cybermax-tools.cybermax/domaindna-api

Tech stack, email security (SPF, DMARC, MX provider) and domain age API + MCP. 25 free domains/day.

Rose Bounty org.agttglobal/rose-bounty

AI-agent trust infrastructure for discovery, authority, execution, verification, and receipts.

13 rules that decide whether a vulnerability report ever reaches you

guide-registry guide.startupleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Piloxa io.github.Piloxa/piloxa

Prepare USPS Certified Mail letters from any AI assistant; a person reviews, pays and authorizes.

Free local micro-APIs: markdown cleaner, JSON validator, CSV-to-JSON, agent-config secret auditor.

Czech Company Registry (ARES) Tools io.github.appvantagelabs2-a11y/czid

Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.

Doppler API: projects, configs, secrets listing and download. Needs service or personal token.

guide-registry guide.gamedesigner/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Scans MCP tool definitions for hidden instructions and confused-deputy sinks

VulnHunt Security Intelligence io.github.owenkingva-web/vulnhunt

Read-only smart-contract security intelligence for autonomous agents.

guide-registry guide.counselor/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Authorizes MCP tool calls against a session policy, not one call at a time.

Read-only access to VAAST vulnerability scan findings, workspaces, and targets for AI agents

MailSenpai com.mailsenpai/mcp

MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.

FlutterGo ai.fluttergo/remote

Create, edit, preview, and build Flutter apps via FlutterGo.AI cloud MCP (OAuth).

guide-registry guide.maintenanceleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Trent ai.trent/trent

Security reviews, threat models over a repo or website, and remediation tracking, in your editor.

Scans Agent2Agent (A2A) protocol code for webhook SSRF, missing auth, and credential exposure

Debian Security Advisories — buy per-query in-session (debianwatch) com.a2awire/data-debian-security-advisory-dsa-linux

Debian Security Advisories (DSA). $0.01/query. Register in-session — free testnet funds.