MCP servers for Grok Build

Markdown viewer for AI-assisted document review. Click any element to copy file path + line number.

Read-only Market Brew search engine modeling and AI visibility data via OAuth.

Stock watchlist alerts: 8-K filings, volume spikes, big moves, gaps, upcoming earnings. Read-only.

Vehicle valuations and market reports in Claude or ChatGPT. Pay per report, no subscription.

Monitor brand and competitors: communities, news, social, AI answers; gap analysis and action plans.

Verify agent credentials, 9 formats, scam domains; search 70k+ MCP servers with auth-gate state.

Indian stocks: NSE/BSE filings read by AI with price reactions, fundamentals, IPOs and FPI flows.

Classified ads from Kleinanzeigen (Germany) and second-hand items from Vinted's 27 country sites.

Browse the three.ws agent marketplace and skills catalog from any AI agent. browse_agents and browse_skills search & page the public

Your AI writes the doc. People comment. Your AI updates it.

PDF tools for agents: compress to a size, Arabic + English OCR, Office conversion, JSON extraction.

Marriage licence offices across GB, IE, NZ, AU, CA and US.

Export Markdown to PDF, and open Markdown files in the MarsDawn app, with the marsdawn command-line tool.

Documents and web for AI agents: PDF parse, OCR, web extract, invoice checks. x402, no API key.

Web extraction, OCR (Japanese-strong), invoice and company data for AI agents. x402, no API key.

Calibrated vision for AI agents: meal nutrition, personal color, styling reports. x402, no API key.

Grants.gov search and USAspending grant data. 4 MCP tools for grant discovery.

Hosted agent memory with record-based verification, conflict detection, correction and deletion.

EQ scoring plus a read-only Storelayer matcher and guarded self-install; no website credentials

Valid Brazilian test data: CPF (Brazilian individual taxpayer registration number), CNPJ (Brazilian company taxpayer registration number)…

Map prerequisites, track mastery and recommend the next topic each learner is ready for.