# Documentation - [Fiber AI Documentation](/): Find any company or person, get their verified contact information, and know the moment something changes about them. - [Using the Fiber Dashboard](/using-the-ui): Build audiences, reveal verified contacts, and export to CSV or ad platforms — the full workflow with no code required. - [Operations index](/operations): Every Fiber AI API operation by reader-facing name — find the one call you need, then open its API reference. - Billing - [Billing & Credits](/billing): How Fiber's credit-based pricing works — per-item costs, free operations, and cost-control levers. - [Payment Troubleshooting](/billing/troubleshooting): Fixes for common payment and billing problems, and how to reach us when something doesn't look right. - Search & discovery - [Search](/search): Query 50M+ companies and 500M+ professional profiles with structured filters — count for a credit, then pull only the results you want. - [Getting accurate results from search](/search/using-search-apis): Write people and company searches that return exactly the people you mean — the rules that matter, what's available today, and worked examples of common mistakes with their fixes. - [Search counts](/search/counts): Count matching companies and people before you pull a single result — what's exact, what's estimated, and the two caveats that matter when a count feeds a report or a benchmark. - [Industry filtering](/search/industry-filtering): The two meanings of "industry", which filter expresses each, and how to pick valid values so an industry filter never silently matches nothing. - [Migrating from another data provider](/search/migrating-from-other-providers): Translation tables for the filter vocabularies that differ between providers (departments, seniority levels, job-title matching), so a search means the same thing here as it did there. - [Sizing and locating companies](/search/sizing-and-locating-companies): Filter companies by headcount with any range you need, and by headquarters location down to city level — both fully supported on company search and combined search. - [Natural-language search](/search/agentic-search): Ask in plain English and get a matching list of companies or people — plus a clear list of anything the query could not apply. - [Job title matching](/search/job-title-matching): How people search matches job titles — normal, phrase, and prefix modes, opt-in stemming, exact equality, and when to generate titles instead of listing them. - [Job Search](/search/job-search): Filter 13M+ open roles by title, pay, and location, then count matches before you pull postings. - [Blue-collar job search](/search/blue-collar-jobs): Search US trade, warehouse, and service listings by company, keyword, and location. - [Typeaheads](/search/typeaheads): Autocomplete endpoints for companies, schools, investors, locations, and skills — plus job-title synonym expansion and preset metro regions. - [Google Maps / Local Business Search](/search/google-maps): Find any local business in any geography, then let AI agents identify the owners and their contact info. - [Stealth Tracking](/search/stealth): Find people in stealth mode on LinkedIn, and the ones who just came out of it — a signature capability, especially popular with VCs. - [Fortune & Forbes Lists](/search/fortune-forbes-lists): Filter searches by Fortune 500 or Forbes Global 2000 membership, or download a ranked edition with financials attached. - [Accelerators](/search/accelerators): Find, filter, and get alerts on startups by accelerator and batch — Y Combinator, Techstars, a16z Speedrun, and 16 more, with new batches added within days of going public. - Enrichment - [Contact Reveal](/enrichment/contact-reveal): Reveal verified work emails, personal emails, and phone numbers for a person you already know — pick a stack for cost, speed, or coverage. - [Email & phone validation](/enrichment/validation): Check an email or phone number you already have before you use it, with a clear verdict and a score per address. - [Reverse Email Lookup](/enrichment/reverse-email-lookup): Turn an email address (or phone number) into the person behind it — LinkedIn profile, name, and full enriched identity. - [Hashed Email Lookup](/enrichment/hashed-email-lookup): Turn SHA-256, MD5, or SHA-1 hashed emails (HEMs) back into the real address and the LinkedIn profile behind it — up to 100 per call, billed only on hits. - [Kitchen Sink](/enrichment/kitchen-sink): Resolve a person or company from whatever partial data you already have — no need to know which field is "the right one." - [Company insights](/enrichment/company-insights): Size up any company in one call per question. Revenue, team sizes, where its people come from and go, an org chart by function and seniority, plus logos and profile photos at scale. - Audiences & lists - [Audiences](/audiences/audiences): Turn company and people filters into a saved list of accounts and contacts, add verified emails and phones, and export it as CSV or ad-platform files. - [Exclusion lists](/audiences/exclusion-lists): Keep customers, competitors, and past contacts out of every search — free lists of companies or people that filter your results automatically. - [Saved searches](/audiences/saved-search): Re-run a company or people search on a schedule and track who joins, departs, or stays — you're billed only for what's new. - Social media APIs - [Social media APIs](/social): Pull live profiles, posts, audiences, transcripts, and search across X, GitHub, YouTube, Instagram, TikTok, and Reddit — then turn a handle into a contactable person. - [X (Twitter)](/social/twitter): X profiles, keyword search, follower graphs, and tweet-level engagement — plus a synchronous handle-to-LinkedIn lookup that makes an X identity contactable. - [GitHub](/social/github): Match a GitHub username to a LinkedIn profile and work emails, or go the other way from a LinkedIn URL or a name to a GitHub account. - [YouTube](/social/youtube): YouTube channel stats, video metadata, timestamped transcripts, comments, and video search as structured API responses. - [Instagram](/social/instagram): Instagram creator and brand profiles, posts and Reels with engagement metrics, and post comments — plus finding someone's Instagram from their name or LinkedIn. - [TikTok](/social/tiktok): TikTok creator profiles, video catalogs and follower lists, spoken-word transcripts, keyword and hashtag search, trending feeds, and sound-based discovery. - [Reddit](/social/reddit): Reddit search across every subreddit, list posts by Hot/New/Top, and read threaded comments with their nested replies. - LinkedIn data - [Live Fetch](/linkedin/live-fetch): Fetch a LinkedIn profile or company as it stands right now, by whatever identifier you happen to hold. - [LinkedIn Activities](/linkedin/activities): Read public LinkedIn posts, comments, and reactions — by author, by post, or by keyword across the whole platform. - [Known Quirks of Activity Data](/linkedin/activity-quirks): Why LinkedIn posts, comments, and reactions can differ between two fetches. - [Standardize identifiers](/linkedin/standardize-identifiers): Turn messy LinkedIn slugs, org IDs and URNs into clean canonical URLs, or hand us a whole spreadsheet and get it back repaired and enriched. - Monitoring & signals - [Tracker](/monitoring/tracker): Watch companies and people for the changes that matter — 53 rule types, refresh cadences from daily to every six months, signals delivered by webhook and API. - [Webhooks & Notifications](/monitoring/webhooks): Get notified when background jobs finish — machine-readable webhooks for your systems, configurable in the dashboard or through the API. - [In-app notifications](/monitoring/notifications): Every background job, scheduled run, and credit alert lands in a shared team inbox in the dashboard — zero setup, visible to your whole organization. - [Job changes](/monitoring/job-changes): Find out when the people you care about change jobs. Use Tracker for new integrations; job-change lists stay available for existing ones. - Market intelligence - [Market Intelligence APIs](/market-intelligence): Hotels, Booking.com stays, flights and fare deals, live market quotes, and North American real estate listings, returned as JSON from the same Fiber API. - [Hotels API](/market-intelligence/hotels): Search hotels and vacation rentals the way you would on a travel site, then open a property for rates, amenities, and booking offers. - [Yelp](/market-intelligence/yelp): Search Yelp businesses, pull a full business page, and page through reviews — ratings, hours, services, and normalized contact data. - Web research - [Website screenshots](/web-research/website-screenshots): Turn any public URL into a permanently hosted PNG — desktop or mobile, viewport or full page, captured from the country you choose. - Account - [Account & team](/account): Inviting teammates, what each role can do, how trials start and end, and where spending controls live. - [Quickstart](/account/quickstart): Get a working Fiber API key in one command, straight from a terminal or an AI agent. - [API keys](/account/api-keys): Create a Fiber API key, pass it on every request, and manage sandbox keys, limits, and revocation from the dashboard or the API. - Build - [Build with Fiber](/build): Connect Fiber through MCP, the REST API, TypeScript and Python SDKs, the AI plugin, or OpenFiber — then consume results with webhooks or polling. - [Sync vs async](/build/sync-vs-async): Which Fiber operations return in one call, which run as background jobs, how batch jobs are charged, and how to paginate every family correctly. - [SDKs](/build/sdks): Official TypeScript and Python SDKs for the Fiber AI API — typed requests, typed responses, and credit costs on every call. - [MCP for AI agents](/build/mcp): Connect Fiber to Claude, ChatGPT, Cursor, Claude Code, Codex, VS Code, and Windsurf via Model Context Protocol (MCP) — search companies, enrich contacts, and check credits from your agent. - [Developing with AI Agents](/build/ai-agents): Wire Fiber AI into Claude Code, Cursor, Codex, OpenCode, and 40+ other agents — plugins, MCP servers, and skills that search and enrich for you. - [OpenFiber](/build/openfiber): An MIT-licensed, open-source prospecting UI built on the Fiber API — run it as-is, white-label it into your product, or fork it into something new.