MCP servers for Grok Build

Loan-cost math: payments, payoff time, offers with fees, payday loans, Rule of 78s, Fed rates.

Turn long URLs into shre.me/code, and read the clicks: day, country, device, referrer.

Personalized video workflows, creative drafts, previews and campaign results through API and MCP.

Catalog of 4 million products by GS1 barcode, with brand, photo, NCM and CEST codes.

Browse libraries, search books, and control playback in your self-hosted Audiobookshelf instance.

Minecraft The Sift portal tools: coordinate converter, materials budget, and ignition diagnostic.

Check work from photos: read results, write checks in plain words, send photos for a verdict.

Deterministic trust gate for AI output: leaked-secret, prompt-injection & PII in one call.

Software engineering firm in Serbia: services, engagement models, articles - and send an inquiry.

Qualified and simple e-signatures: request signing, track ceremonies and download signed documents.

Pay-per-call change-intelligence feeds for AI agents over x402 (deps, security, regs, tariffs)

Machine-native tools for autonomous agents with free routing and x402 USDC pay-per-call.

pump.fun graduation radar for trading bots and AI agents. x402 USDC per scan, no key.

Discover, subscribe to, and track three.ws copy-trade signal feeds from any AI agent — a marketplace ranked by proven realized edge, a

E-signature API: send documents for signature, track envelopes, get signed files.

Audit and build email signatures that survive Gmail, Outlook desktop and Apple Mail.

Send PDFs for legally binding e-signature, free and unlimited. Track status; free legal templates.

Send documents for e-signature, track signing status, and download signed PDFs. No API key required.

Query contacts, companies, relationships, and communication metrics from SigParser.

Create and manage trading strategies, bots, webhooks and signals from any MCP client.

iOS MCP server: 49 tools free (58 with Pro), xcresult parsing, WDA UI automation, fast screenshots.