Alternatives to Oakstack
Cron jobs with retries, webhook relay, HTML-to-PDF, and transactional email for your app.
Oakstack is tagged Files, AI, API. The servers below cover similar ground, ranked by how many tags they share with it, then by GitHub stars.
aethis-mcp
by io.github.Aethis-ai
Deterministic eligibility decisions and test-driven rule authoring via the Aethis developer API.
npx -y aethis-mcp@0.22.0Agent Data API
by io.github.lx1112
Token risk, wallet profiles, OFAC screening, whale trades on 6 chains. x402, USDC per call.
https://onchaincheck.dev/mcpAgent Read Proxy
by dev.workers.agent-read-proxy.agent-read-proxy
Read web pages and PDFs as clean Markdown for AI agents. Pay per call in USDC via x402, no API key.
https://agent-read-proxy.agent-read-proxy.workers.dev/mcpagent-data-api
by io.github.Ptrgit1
19 pay-per-call data tools for AI agents: crypto/DeFi, web, PDF, FX, weather, DNS. x402 on Base.
npx -y agent-data-api-mcp@1.0.1AIsa X / Twitter
by one.aisa
Profiles, timelines, followers, replies, quotes, communities, lists and trends.
https://mcp.aisa.one/twitter-api/mcpAnvil MCP by usefulapi
by io.usefulapi
Hosted MCP server for Anvil — fill & generate PDFs and run Etch e-signature packets for AI agents.
https://anvil.usefulapi.io/mcpapi
by com.docimprint
AI document intelligence: extract, summarize, claim-check, notarize, and signed action receipts.
https://api.docimprint.com/mcpApixies Developer API Suite
by io.apixies
50 developer utility APIs as tools: SSL, DNS, WHOIS, email checks, HTML to PDF, sitemaps and more.
npx -y @apixies/mcp-server@1.4.2brainbox
by io.github.thebasedcapital
Hebbian memory for AI agents. Learns file patterns, predicts next tools, saves tokens.
npx -y brainbox-hebbian@0.1.6Brainiall Image
by com.brainiall
Background removal, upscaling, face restore, document OCR, table extraction, visual understanding.
https://api.brainiall.com/mcp/image/mcpBrasspage Apify Actors
by com.brasspage
Six AI-built Apify Actors: ATS jobs, PDF OCR, Lighthouse audits, transcripts, Sheets, site audits
https://mcp.apify.com?tools=brasspage/careers-site-jobs-api,brasspage/pdf-ocr-to-markdown,brasspage/lighthouse-bulk-audit,brasspage/media-transcriber,brasspage/google-sheets-sync,brasspage/website-contact-tech-auditBulk Email Validator & List Cleaner: MX, Disposable & Typos
by io.github.Nero-Engine
Cleans an email list from an Apify dataset, a CSV/Excel file or Google Sheet, keeping every...
https://mcp.apify.com/?tools=nerolabs/email-list-cleaner