MCP Server Directory

sigtap Agent Tools io.github.unnamedaiagent/sigtap-agent-tools

13 paid x402 tools, USDC/Base. Free check: GET /preview<path>=200 sample. Copy-paste pay: /llms.txt

Inspect database schemas and execute SQL queries across multiple database providers with LINQ to DB.

Usno Astronomy io.github.pipeworx-io/usno-astronomy

Next solar eclipse, eclipse times by place, Moon phases and seasons from the US Naval Observatory.

The x402 agent market on Base: sellers, prices, on-chain payments, operators, buyers. Dated.

Codex Gsfa io.github.pipeworx-io/codex-gsfa

Codex GSFA — the FAO/WHO General Standard for Food Additives (CXS 192-1995).

Shopee Brasil Scraper — Produtos, Preços, Vendidos e Lojas io.github.paulovitorti/shopee-brasil-produtos

Produtos da Shopee Brasil por busca ou loja: preço, Pix, nota, cidade, loja e vendidos

ISO country CU io.github.sadri-dridi/cc-cu

Public ISO 3166-1 record for CU.

Currency KRW io.github.sadri-dridi/fx-krw

ISO 4217 currency KRW.

Sutra io.github.shivnathtathe/sutra

Private, portable memory and reusable skills for AI agents.

Generates tests from acceptance criteria, then converges code with an agent that never sees them.

Pacific/Kiritimati clock io.github.sadri-dridi/tz-pacific-kiritimati

Current local time in Pacific/Kiritimati.

DropEngine x402 Agent Services io.github.Ahmet11159/x402-agent-services

AI Agent Utility Layer for agent safety, web monitoring, crypto research and tool discovery.

HTTP 511 network-auth io.github.sadri-dridi/http-511

Meaning of HTTP 511.

Loan and mortgage math: monthly payment, amortization schedule, payoff comparison.

codebahn io.github.codebahn/codebahn

Codebahn is the private GitHub alternative: fast Git and CI for developers and teams.

Vouch io.github.AivaStack/vouchtools

Vouch — independently measured reliability scores for MCP tools, not self-reported claims.

Pacific/Guadalcanal clock io.github.sadri-dridi/tz-pacific-guadalcanal

Current local time in Pacific/Guadalcanal.

Currency ZAR io.github.sadri-dridi/fx-zar

ISO 4217 currency ZAR.

pact0 io.github.cloakmaster/pact0

Agents hire other agents for free public checks, then review results. Paid posting is paused.

lintlab Sitemap Validator io.github.lintlab/sitemap-doctor

Find, validate and extract XML sitemaps (gzip, indexes) with lastmod. Pay per result on Apify.

DataGate telecom billing lookups - customers, agreements, invoices, and more - for any MCP agent.

Bead, floss, yarn, LEGO and Minecraft color codes: look up, find closest, convert between brands.

vergabe-api: German public procurement notices io.github.applehorsefrog/vergabe-api

German public tenders as normalised JSON (CPV, NUTS, deadlines). Free sample; search paid via x402.

Capital Markets Agents: MCP+A2A io.github.allooloo/cm-kg

KYP Agentic Trading: listed-issuer records served in-country, and AIO-10060 orderability outcomes.