Browse MCP servers

MCP Harbor, an MCP Server Registry, Directory, and Tower to Buzz.

6 matching

filtered by io.github.gsterlingpress clear all

Showing 1–6 of 6 servers

MAILTYPE — Email Domain Capability Intelligence
streamable-http

io.github.gsterlingpress/mailtype

Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.

official
PREFLIGHT — URL Routing for AI Agents
streamable-http

io.github.gsterlingpress/preflight

Choose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.

official
ONCE — Exactly-Once Reliability for AI Agent Actions
streamable-http

io.github.gsterlingpress/once

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.

official
RECOVER — Decide Safely After a Failed Machine Action
streamable-http

io.github.gsterlingpress/recover

Choose the safest next action after an API, MCP, or agent failure before retrying.

official
POSTFACT — Resolve Ambiguous Side Effects Before Retry
streamable-http

io.github.gsterlingpress/postfact

Resolve whether an uncertain side-effecting action completed before software retries it.

official
FRESH — Shared URL Freshness Intelligence
streamable-http

io.github.gsterlingpress/fresh

Decide whether an agent should reuse cached URL knowledge or fetch the resource again.

official

Search this catalogue from your agent

The registry is itself an MCP server. Add it once and your agent runs these same searches, with no account and no key.

claude mcp add --transport http mcp-registry-search https://ai.mcpharbor.dev/mcp