SEO teams and agencies
Link building
“Which sites link to my three competitors but not to me? Rank them by domain authority.”
A ranked list of link prospects with authority and spam scores.
Web & SEO data for AI agents
The SEO toolkit as connectors your agent can call: backlinks and domain authority, keyword research with search volume, Google rank tracking and SERP scraping, competitor keyword gaps, site audits, traffic estimates, Google Trends and whether ChatGPT, Claude and Perplexity mention your brand — plus website contacts, tech stacks, PageSpeed and developer package stats.
33 Web & SEO connectorsWorks with
Use cases
What teams build with Web & SEO data
Ask in plain English. Your AI picks the connectors, runs them and hands back the answer.
Founders and marketing teams
AI search visibility
“Do ChatGPT, Claude and Perplexity recommend us for 'best crm for plumbers'? Who do they mention instead?”
Share of voice in AI answers and the competitors cited instead of you.
Sales and agencies
Prospect enrichment
“For these 50 domains, find contact emails and what tech stack they run.”
Enriched leads with contacts and technology.
SEO specialists
Technical SEO checks
“Audit PageSpeed for our top 20 URLs and list every page in our sitemap.”
Performance scores and a full URL inventory.
Content marketers
Keyword research
“Give me 200 long-tail keyword ideas around 'crm for plumbers' with search volume and difficulty.”
Keyword ideas with volume, CPC and difficulty to plan content around.
DevRel and investors
Developer ecosystem tracking
“Compare weekly downloads and GitHub stars for these five open-source libraries.”
Adoption trends across package registries and GitHub.
33 Web & SEO connectors
Backlink CheckerList backlinks, referring domains and anchor texts for any domain or URL, with domain rank, dofollow status, spam score and first/last seen dates.Backlink Gap FinderFind websites that link to your competitors but not to you. Get a ranked list of link-building prospects with domain rank, spam score and backlink counts.Backlink MonitorTrack new and lost backlinks for any website. Schedule it daily or weekly to get each link gained or lost since the last run, with anchor, domain rank and spam score.Base64 Encoder & Decoder APIBatch encode text to Base64 or decode Base64 back to text, with URL-safe and data URI output modes, in one API call.Brand Mention MonitorFind where your brand is mentioned across the web, with sentiment, site authority and whether each page links back to you, so you can turn mentions into backlinks.Brand Visibility TrackerSee if ChatGPT, Claude, Gemini, Perplexity and Google's answer boxes mention or cite your brand for any prompt, with competitor share of voice and sources.Bulk Domain Authority CheckerCheck domain rank (0-100), backlinks, dofollow/nofollow split, referring domains, spam score and 30-day link changes for thousands of domains at once.Competitor Keyword Gap FinderSee every Google keyword a competitor ranks for that you don't, with search volume, position, ranking URL, traffic estimate and keyword difficulty.Domain WHOIS & SSL InspectorLook up registration, age, expiry, registrar, and name servers for any domain via RDAP, plus live SSL certificate details issuer, validity, and days until expiry one row per domain.Email VerifierVerify email addresses in bulk: syntax, MX records, disposable domains, role accounts, and live SMTP deliverability checks for clean, sendable lists.GitHub Repo StatsGet stars, forks, issues, language breakdown, license, last commit, and contributor counts for any GitHub repository. Bulk-process a list of repos in one run.Google Keyword ResearchFind keyword ideas with Google monthly search volume, CPC, competition, keyword difficulty, search intent and 12-month trends for any country.Google Keyword SuggestScrape Google autocomplete for any seed keyword. A–Z expansion, question modifiers, prefix expansion. Hundreds of long-tail keywords per seed, with country and language targeting. No API key.Google PageSpeed InsightsRun a list of URLs through Google PageSpeed Insights and get Lighthouse scores plus Core Web Vitals for each one.Google Rank TrackerTrack your website's Google ranking for any keyword by country, city and device, with position changes, competitor positions and SERP features.Google Safe BrowsingCheck a list of URLs against Google Safe Browsing threat lists and report per-URL safety status.Google Search ScraperScrape Google organic search results for any keyword: rank position, title, URL, domain, snippet and date, by country, up to 11 pages per query.Google Trends ExplorerGet Google Trends related topics, rising and breakout queries, interest over time and interest by region for any keyword, on web, YouTube, News or Shopping search.Hacker News Search Scraper Stories, Comments, Show HN, Ask HNSearch Hacker News stories, comments, Show HN, Ask HN, polls, and jobs by keyword, author, date range, points, and comment count. Full text and engagement metrics. No login.HTTP Request RunnerA bulk HTTP request runner that issues large numbers of HTTP methods (GET, POST, PUT, PATCH, DELETE, HEAD) with configurable concurrency, per-request headers and payloads, and proxHugging Face Models ScraperSearch Hugging Face for models by task, tag, or keyword and export downloads, likes, library, license, and tags to a clean results.NPM Package Stats ScraperGet download counts, version history, dependencies, license, repo, and maintainer info for any npm package. Bulk-process a list of packages in one run.Phone Number Validator & LookupValidate phone numbers in bulk and get E.164 format, country, line type (mobile, landline, VoIP, toll-free), carrier, location and timezone for every number.PyPI Package Stats ScraperGet download counts, version history, dependencies, license, author, and classifiers for any Python package on PyPI. Bulk-process a list of packages in one run.QR Code Generator & Reader APIGenerate QR code images from text or URLs, or decode QR codes from images, in a single batch API call.Simple Email ValidatorValidate email addresses in bulk by checking syntax, MX records, disposable domains, role accounts, and free providers.Sitemap URL ExtractorExtract every URL from a website's sitemap.xml. Recursively walks nested sitemap indexes and returns loc, lastmod, changefreq, and priority for each page.Wayback Machine Snapshots ScraperList every Internet Archive snapshot of a URL, page, or whole domain. Timestamp, snapshot URL, status code, mime type, content length. No login.Website Contact ScraperExtract emails, phone numbers, and social media links from any website. Scrape multiple sites per run using a real browser for full JS-rendered content.Website Email ScraperCrawl any website up to 20 levels deep and extract all visible email addresses, with proxy support and same-domain link following.Website SEO Audit CrawlerCrawl a whole website and audit every page for SEO issues: broken links, missing titles and meta descriptions, duplicate content, slow pages and Core Web Vitals.Website Tech Stack DetectorDetect the technologies behind any website CMS, ecommerce, JS frameworks, analytics, payments, CDN, web server, and email provider plus DNS and MX records, in one row per domain.Website Traffic CheckerEstimate any website's monthly Google search traffic, ranking keywords and traffic value, with its top pages and competing domains. Bulk domain lists.
Popular Web & SEO APIs
Connect Web & SEO data to your AI in under a minute
Pick your tool. Claude and ChatGPT take a single URL; Cursor and VS Code install in one click.
Connect Claude
Web, desktop and mobile. One click, then confirm.
- 1Click Add to Claude — claude.ai opens with Sourcelane filled in
- 2Click Continue to confirm — it then works in Claude desktop and mobile too
Web & SEO data API — FAQ
Do I need a Web & SEO API key or developer account?+
No. Sourcelane runs the connectors for you. You top up a balance with a card, create an agent key, and your agent calls the connector — there is no Web & SEO app review, OAuth setup or rate-limit juggling on your side.
Which AI tools can use it?+
Anything that speaks MCP (Claude Desktop, Claude Code, Cursor, VS Code, Windsurf) can connect to the Sourcelane MCP server with one config block. ChatGPT can use it through a Custom GPT Action, and any agent framework can call the REST endpoint directly.
Can I stop an agent from overspending?+
Yes. Every agent key has its own per-call cap, daily and monthly limits, an optional lifetime budget, an allowlist of connectors, and a kill switch.
