MCP server

Cited Brief

dev.workers.cited-brief.cited-brief/cited-brief

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Paid web research tools: cited briefs, quote checks, page text. Pay per call in USDC via x402.

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

7

Token cost

About 1,332 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http cited-brief https://cited-brief.cited-brief.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.cited-brief]
url = "https://cited-brief.cited-brief.workers.dev/mcp"

Gemini CLI

{"mcpServers":{"cited-brief":{"httpUrl":"https://cited-brief.cited-brief.workers.dev/mcp"}}}

Cursor

{"mcpServers":{"cited-brief":{"url":"https://cited-brief.cited-brief.workers.dev/mcp"}}}

VS Code

{"servers":{"cited-brief":{"type":"http","url":"https://cited-brief.cited-brief.workers.dev/mcp"}}}

Antigravity

agy mcp add cited-brief https://cited-brief.cited-brief.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"cited-brief","server_url":"https://cited-brief.cited-brief.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"cited-brief","server_url":"https://cited-brief.cited-brief.workers.dev/mcp"}

Tools

• check_doi ~227 tokens
  Looks up 1-10 DOIs or arXiv ids: does the paper exist, its title, authors, year and venue, how often it is cited, and whether it has been retracted. Pass the titles you cited to see if they match the real ones. Catches made-up references. No AI involved; if the lookup services are down you are not c
• check_links ~167 tokens
  Checks 1-10 URLs: HTTP status, where redirects end, the page title, and a warning when a "200" page is really a not-found page. Use it to catch dead or made-up citations. No AI involved; a dead link is a valid answer, but a request with no usable URL is not charged. Price: $0.01 USDC per call (x402)
• check_quote ~193 tokens
  Checks whether 1-10 quotes really appear on a web page (ignoring case, spacing, and quote or dash styles) and returns the surrounding text. Use it to catch made-up citations. No AI involved; if the page can't be read you are not charged. Price: $0.01 USDC per call (x402).
• cited_brief ~178 tokens
  Answers a question from 1-5 web pages you name. Every claim comes with a verbatim quote that is re-checked on the live page; claims that fail are dropped, and if none pass you are not charged. Price: $0.10 USDC per call (x402).
• domain_check ~225 tokens
  Domain age and registration facts (created, expires, registrar, status, nameservers) from the registry's RDAP or WHOIS service, plus live DNS (address records, mail servers, SPF, DMARC) and plain flags such as "registered only 9 days ago". Use it to judge how trustworthy a site is. No AI involved. W
• page_text ~162 tokens
  Fetches a public web page and returns its title and readable text, without scripts, styles or markup (up to 100,000 characters). If the page can't be read you are not charged. Price: $0.01 USDC per call (x402).
• robots_check ~180 tokens
  Reads the site's robots.txt and says whether a crawler may fetch a URL (RFC 9309: the longest matching rule wins, Allow wins a tie), with the matching rule, crawl-delay and sitemaps. No AI involved; if robots.txt cannot be read you are not charged. Price: $0.01 USDC per call (x402).

Browse

• Web scraping
• Domains and DNS
• Research papers

Related MCP servers

• Bob Research Tools
  Paid web research, news, prediction-market evidence, company briefs and fact-checks (x402 USDC)
• Mnemos — memory as a service
  Bi-temporal memory-as-a-service and paid agent labor. Pay-per-call USDC via x402; signed receipts.
• Space Intelligence
  Space company and market intelligence from SNTL Space.
• MYCELIX
  Free, no-key, read-only MCP endpoint verification and diagnostics.
• Agent Toolbox
  Everyday tools for AI agents, paid per call with x402: images, markdown, speech-to-text, embeddings.
• ISHOB Knowledge Archive
  License-checked research archive and technical-spec search for AI agents. Pay per call via x402.
• SalesMap
  Checked buying signals and ranked lead lists for your agent. Never contacts anyone.
• Blackwood State
  Pay-per-call tools for agents: onchain data, ECB FX rates, text tools. USDC on Base, x402

Badge for your README

[![AptLynx](https://aptlynx.net/badge/dev.workers.cited-brief.cited-brief/cited-brief.svg)](https://aptlynx.net/servers/dev.workers.cited-brief.cited-brief/cited-brief)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents