For agent builders MCP + HTTP · no key # Live public data for your agent, *in one line* One MCP address and no key: job boards, app reviews, YouTube transcripts and X posts come back as structured results with the source and the time they were read. The index tool finds the rest when your agent needs it. 01 Pick your assistant Works with Claude Code Cursor ChatGPT Claude n8n 02 Add the server, then ask **Claude Code** ``` claude mcp add --transport http openkrill https://api.openkrill.app/mcp ``` Run it in a terminal, then ask. Check: `claude mcp get openkrill`. **Cursor** ``` { "mcpServers": { "openkrill": { "url": "https://api.openkrill.app/mcp" } } } ``` The button opens Cursor to confirm. Or add this to `~/.cursor/mcp.json`. **ChatGPT** ``` https://api.openkrill.app/mcp ``` Settings, Developer mode on. Plugins, plus, paste under Connection. **Claude** ``` https://api.openkrill.app/mcp ``` Customize, Connectors, Add custom connector, paste the address. **n8n** ``` https://api.openkrill.app/mcp ``` AI Agent node, MCP Client Tool: this Endpoint, HTTP Streamable, no auth. [Add to Claude Code](#lf-panels) Free, about 1 minute, nothing to install. Your agent calls `list_jobs({ companies: ["greenhouse:vercel"], remote: true, postedSince: "2026-09-01" })` list_jobs answers 3 open roles at Vercel posted since 1 September, each with its board link and posting date: - 24 Sep 2026 **Product Manager, Dashboard** Product, San Francisco. - 16 Sep 2026 **Software Engineer, Data Platform** Data, New York. - 15 Sep 2026 **Design Engineer** Design, San Francisco. Read from Vercel's Greenhouse board on 15 October 2026. The same call works over plain HTTP. [Try a tool live](https://tools.openkrill.app/#try) · [Every tool](https://tools.openkrill.app/#all-tools) [KrillData](https://data.openkrill.app): an MCP server and REST API that gives AI agents web and social data. ## Try the 4 most used tools Real calls, real answers. Edit and run. ### [Post Kit](https://tools.openkrill.app/tools/postkit) **513** calls, week of Oct 12 One topic in, a checked post for each network out. TopicWe launched a free check that shows which AI crawlers can read your site: tools.openkrill.app draft_posts ### [Page Fetch](https://tools.openkrill.app/tools/page-fetch) **77** calls, week of Oct 12 Any page as clean Markdown, with its links. Address fetch_page ### [Site Check](https://tools.openkrill.app/tools/site-check) **63** calls, week of Oct 12 Which AI crawlers your robots.txt lets in. Address check_ai_crawler_access ### [SEO Audit](https://tools.openkrill.app/tools/seo-audit) **57** calls, week of Oct 12 One page, its SEO findings by severity. Address audit_page ## Find a tool 39 tools by job. Search, or open a group. ### Everyday checks 6 ### [Recall Check](https://tools.openkrill.app/tools/recalls) US recalls for cars, products, food ### [Settlement Claim Finder](https://tools.openkrill.app/tools/settlements) Class action settlements you can claim `https://settlements.openkrill.app/mcp` ### [Car Check](https://tools.openkrill.app/tools/cars) Decode a VIN, recalls, fuel use `https://cars.openkrill.app/mcp` ### [Food Facts](https://tools.openkrill.app/tools/food) Ingredients and allergens from a barcode `https://food.openkrill.app/mcp` ### [Travel Check](https://tools.openkrill.app/tools/travel) Travel advice and US airport delays `https://travel.openkrill.app/mcp` ### [Business Days & Workday Calc](https://tools.openkrill.app/tools/business-days) Working days and public holidays `https://businessdays.openkrill.app/mcp` ### Shops and sellers 6 ### [Store Price Tracker](https://tools.openkrill.app/tools/store-prices) Watch a Shopify store's price changes `https://stores.openkrill.app/mcp` ### [Associate Product Finder](https://tools.openkrill.app/tools/associate-links) Amazon picks with your affiliate tag `https://associatelinks.openkrill.app/mcp` ### [Catalog QA Desk](https://tools.openkrill.app/tools/catalog-qa) Check a product CSV before import `https://catalogqa.openkrill.app/mcp` ### [Tariff & HS Code Duty Finder](https://tools.openkrill.app/tools/tariffs) Tariff codes and import duty `https://tariffs.openkrill.app/mcp` ### [EU Business & VAT Checker](https://tools.openkrill.app/tools/eu-business) EU VAT numbers and company records `https://eubusiness.openkrill.app/mcp` ### [CertPacket](https://tools.openkrill.app/tools/certpacket) US safety certificates for imports `https://certpacket.openkrill.app/mcp` ### Code and security 2 ### [CVE Risk Check](https://tools.openkrill.app/tools/cve) Rank CVEs and what to patch `https://cve.openkrill.app/mcp` ### [Dev Facts Check](https://tools.openkrill.app/tools/dev-facts) End-of-life dates, licenses, browser support `https://devfacts.openkrill.app/mcp` ### Websites, domains and email 6 ### [Site SEO & AI Crawler Audit](https://tools.openkrill.app/tools/site-check) AI crawler access and share tags `https://sitecheck.openkrill.app/mcp` ### [IndexNow Submit](https://tools.openkrill.app/tools/indexnow) Submit a sitemap to IndexNow `https://indexnow.openkrill.app/mcp` ### [SEO Audit](https://tools.openkrill.app/tools/seo-audit) A ranked list of SEO problems `https://seoaudit.openkrill.app/mcp` ### [Page Fetch](https://tools.openkrill.app/tools/page-fetch) Read a web page as Markdown `https://pagefetch.openkrill.app/mcp` ### [Domain Mail Check](https://tools.openkrill.app/tools/mailcheck) Will your domain's email reach inboxes `https://mailcheck.openkrill.app/mcp` ### [Startup Name Check](https://tools.openkrill.app/tools/names) Is the .com still free `https://names.openkrill.app/mcp` ### Research and public facts 5 ### [Citation Checker](https://tools.openkrill.app/tools/citations) Check references are real, not retracted `https://citations.openkrill.app/mcp` ### [Regulation Reader](https://tools.openkrill.app/tools/rules) US federal regulations and new proposals `https://rules.openkrill.app/mcp` ### [Belief Poll](https://tools.openkrill.app/tools/belief) What people believe, with linked posts `https://belief.openkrill.app/mcp` ### [Tax Numbers](https://tools.openkrill.app/tools/tax) US federal tax figures with sources `https://tax.openkrill.app/mcp` ### Agent Tools API Open jobs, app reviews, X posts ### Jobs, sales and planning 5 ### [Remote Jobs by Country](https://tools.openkrill.app/tools/remote-jobs) Remote jobs open to your country [Browse open remote jobs](https://tools.openkrill.app/remote-jobs)`https://remotejobs.openkrill.app/mcp` ### [Company Jobs Finder](https://tools.openkrill.app/tools/company-jobs) Who is hiring at named companies `https://jobs.openkrill.app/mcp` ### [Hiring Signals](https://tools.openkrill.app/tools/hiring-signals) New and closed roles since your last call [Fastest-hiring companies this week](https://hiring.openkrill.app/leaderboard)`https://hiring.openkrill.app/mcp` ### [E-Commerce Store Enricher](https://tools.openkrill.app/tools/store-enricher) What an online store runs and sells `https://storeenricher.openkrill.app/mcp` ### [BillPeak](https://tools.openkrill.app/tools/billpeak) Check a business electricity bill `https://billpeak.openkrill.app/mcp` ### Writing, media and files 9 ### [Post Stats](https://tools.openkrill.app/tools/post-stats) Views and likes of any public post `https://poststats.openkrill.app/mcp` ### [Post Kit](https://tools.openkrill.app/tools/postkit) Social posts checked per platform `https://postkit.openkrill.app/mcp` ### [Transcript Kit](https://tools.openkrill.app/tools/transcript-kit) Transcripts and captions for your recordings `https://transcript.openkrill.app/mcp` ### [Photo Sheet](https://tools.openkrill.app/tools/photosheet) A photo or voice note to a table `https://photosheet.openkrill.app/mcp` ### [Document Tools](https://tools.openkrill.app/tools/docs) Word counts, calendar and CSV files `https://docs.openkrill.app/mcp` ### [Send Out](https://tools.openkrill.app/tools/send-out) Email drafts, events and share links `https://sendout.openkrill.app/mcp` ### [Share Link Resolver](https://tools.openkrill.app/tools/sharelink) Drive share links to direct downloads `https://sharelink.openkrill.app/mcp` ### [Video Grab](https://tools.openkrill.app/tools/videograb) Freely licensed videos with their license `https://videograb.openkrill.app/mcp` ### [Sound Vocabulary](https://tools.openkrill.app/tools/sound-vocab) Sound effects from a description `https://soundvocab.openkrill.app/mcp` ### Market numbers 1 Information only: no advice, no signals and no trading. ### [Trade Chart](https://tools.openkrill.app/tools/trade-chart) Candlestick charts with indicators `https://chart.openkrill.app/mcp` ## Connect once https://recalls.openkrill.app/mcp [Install guides](https://tools.openkrill.app/integrations): ChatGPT, Claude, Cursor, Pi. [Zapier](https://zapier.com/developer/public-invite/247678/f010eca6378be3e50a9410dfce17b4df/): 40 actions. [Agent Tools weekly](https://tools.openkrill.app/newsletter): what we measured in the week's posts, and what you can try. At most one email a week. Email address Website You confirm by a link we email you. No tracking. Unsubscribe in one click. [Past issues](https://tools.openkrill.app/newsletter/archive). [Privacy](https://tools.openkrill.app/privacy#newsletter). - **40**tool servers - **147**callable tools - **175**install guides - **0**keys to start Each tool server is free within 60 calls a minute per network and 25000 calls a day per server, shared by all callers; the shared API allows 20 requests a minute and 200 tool calls a day per network. [What it costs](https://tools.openkrill.app/pricing). [How it compares](https://tools.openkrill.app/vs). X posts in bulk: [X scraper tutorial](https://tools.openkrill.app/x-scraper-tutorial). [X scrapers compared](https://tools.openkrill.app/x-scraper-comparison). Our own test, checked 9 October 2026: on 20 questions about new CVEs, end-of-life dates and paper citations, a model alone got 14 right; with our servers it got 20 right, each graded against its primary source. [Every question and grade](https://tools.openkrill.app/accuracy). ## For agents Text for agents: [llms.txt](https://tools.openkrill.app/llms.txt), [index.md](https://tools.openkrill.app/index.md), [llms-full.txt](https://tools.openkrill.app/llms-full.txt) and MCP at `api.openkrill.app/mcp`. ## Frequently asked questions ### What is Agent Tools and how do AI assistants use it? Agent Tools gives AI agents and developers live public data over HTTP and Model Context Protocol (MCP). An assistant connects to the MCP server endpoint and calls tools for job listings, app reviews, domain checks, security advisories, and public records. ### Do I need an API key or an account to use these tools? No. You can start without an account or an API key. Requests without a key share a network allowance and have rate limits. An API key is optional, and if you send one in the x-api-key header, those limits are lifted. To get a key, email support@openkrill.app. ### What are the anonymous rate limits and caching policies? Without an API key, the shared API at api.openkrill.app takes 20 requests per minute and 200 tool calls per day per network. Responses are cached at edge nodes, and the cache status comes back as HIT, MISS, or STALE. A repeat request is served straight from cache. ### Which AI clients are supported? Any client that supports Model Context Protocol streamable HTTP can connect, including Claude, Cursor, ChatGPT, and Pi. Each one has install instructions and configuration examples. ### What is the difference between the HTTP API and the MCP server? The HTTP API returns standard JSON over REST endpoints at api.openkrill.app. The MCP server speaks the Model Context Protocol over streamable HTTP at api.openkrill.app/mcp. It exposes tool schemas and runs tools/call requests directly inside AI workflows. ### How much does Agent Tools cost? The tools are free within the rate and daily limits, with no sign-up. Stillchat, our iPhone app, is free too. Paid help is a done-for-you service at a fixed price, and every price is on the [prices page](https://tools.openkrill.app/pricing). ### What if no tool does what I need? Ask from inside your assistant. Every server has a submit_feedback tool: send the kind need_tool with what you wanted, then call get_feedback_reply with the ticket to read our reply. You can also email support@openkrill.app. ### Why did a tool answer rate_limited or unavailable? rate_limited means a limit was reached. That's either ours (60 calls a minute per network on each tool server) or the limit of the public source the tool reads. Wait a minute and ask again. unavailable means the source didn't answer, so the tool says so instead of guessing. Neither one means there are no results. ### How do I report a wrong answer? Call submit_feedback with the kind bug, the tool name, what you asked, what came back, and what is right. Each report gets a ticket, and get_feedback_reply shows you the reply. ### What do the tools keep about my requests? Each tool sends only its arguments to the public source it reads. It keeps daily call counts, not your conversation. A few tools keep a file or a snapshot you asked for, for a set time. The privacy page lists every server, what it sends where, and what it keeps.