The request names HttpStatus.com's MCP server, so HttpStatus.com comes first: its page describes a reference for every HTTP status code plus an MCP server for AI assistants 2. Alternatives are Casey Hand's ref_http_status action, which looks up a status code by number or keyword 111, and GitHub's mcp-cli, which interfaces with MCP servers but does not itself look up status codes 313.
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HttpStatus.comhttpstatus.comwebsite read, tools not yet checked
Provides an HTTP status code reference covering codes 100 to 511, ten developer tools including a URL status checker and redirect tracer, and an MCP server for AI assistants 2.
official:MCP server · com.httpstatus/mcp-server+1 community tools built for it
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- 3
GitHubgithub.comverified and signed
Its mcp-cli action provides an interface for MCP servers via CLI to interact with external tools, APIs and data sources 13, but it does not look up HTTP status codes directly.
official:CLI · github-mcp-serverskill · add-community-extensionskill · git-commitskill · acquire-codebase-knowledge+2,563 community tools built for it
for agents: mcp-cli · go-mcp-server-generator · csharp-mcp-server-generator
Sources
- 1Casey Hand · Software Engineer, AI Infrastructurecaseyjhand.com · read 2026-10-29
- 2HttpStatus.com — HTTP status codes explained & free developer toolshttpstatus.com · read 2026-10-29
- 3GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHubgithub.com · read 2026-10-29
- 11reference-data-mcp-server: declares "ref_http_status" (the record we read and signed)unfragile.ai · read 2026-10-24
- 13mcp-cli: declares "mcp-cli" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
ref_http_status · reference-data-mcp-server verified and signed
Look up an HTTP status code by number or keyword. Returns the reason phrase, description, category (1xx Informational, 2xx Success, 3xx Redirection, 4xx Client Error, 5xx Server Error), whether the code is cacheable by default, and the defining RFC with section reference. For keyword queries, return
· HttpStatus.com website read, tools not yet checked
Every HTTP status code explained, plus fast privacy-first developer tools: URL status checker, redirect tracer, security headers, CORS, DNS, JWT, Base64 and JSON — and an MCP server for AI assistants.
mcp-cli · mcp-cli verified and signed
Interface for MCP (Model Context Protocol) servers via CLI. Use when you need to interact with external tools, APIs, or data sources through MCP servers, list available MCP servers/tools, or call MCP tools from command line.
get_server_health · mcplookup found in code, not yet checked
· MCP Canary website read, tools not yet checked
Your MCP server says 200 while its tools are broken. MCP Canary calls a real tool on a schedule, checks the answer, and emails you when it breaks. Your coding agent sets it up in one command. 7-day trial, no card.
· MCP Checkup website read, tools not yet checked
Free MCP server check. Paste a URL and see what an agent would see of your MCP server: handshake, tools/list and protocol checks in seconds. No account.
nvd_cve_lookup · vulnerability-intelligence-mcp found in code, not yet checked
Look up a specific CVE from the NIST National Vulnerability Database.
· cz-agents website read, tools not yet checked
Open-source MCP servers for AI agents: ARES, ISIR, ÄNB, sanctions, EU business registries. Free tier included. Also available as no-code web DD app for compliance teams.
· mcpaid(1) website read, tools not yet checked
Turn any Model Context Protocol (MCP) tool into a monetized API in 60 seconds. Terminal-native micropayments for AI agents via HTTP 402, pre-funded session wallets, and Base L2.
mcp-apps · mcp-apps verified and signed
Skills for creating MCP Apps with the MCP Apps SDK
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.