# AgentKey > One key that connects your AI agent to web search, scraping, social media, crypto/on-chain, finance, e-commerce, and business data — pay-as-you-go, zero setup. ## Docs - [account: Check Your Credit Balance and Provider Health](https://docs.agentkey.app/api-reference/account.md): The account tool returns your remaining credit balance and upstream provider health. It is always free — calling it never deducts from your balance. - [describe_tool: Get Parameters and Cost Before You Execute](https://docs.agentkey.app/api-reference/describe-tool.md): describe_tool returns a tool's full parameter schema, per-call cost, and execute_as template. Always call this before executing a tool. - [AgentKey Error Reference and Troubleshooting Guide](https://docs.agentkey.app/api-reference/errors.md): Common AgentKey errors, their causes, and how to fix them — from auth failures and credit exhaustion to tool name typos and provider outages. - [execute_tool: Run Any AgentKey Tool by Provider Name](https://docs.agentkey.app/api-reference/execute-tool.md): execute_tool runs a Provider/Operation tool with your parameters and returns the provider's response. Always discover and describe before executing. - [find_tools: Search AgentKey's 1,800+ Tools by Intent](https://docs.agentkey.app/api-reference/find-tools.md): find_tools performs semantic search over all 1,800+ AgentKey tools. Pass your full natural-language intent and get back ranked Provider/Operation names. - [AgentKey API Overview: Four Tools, 1,800+ Providers](https://docs.agentkey.app/api-reference/introduction.md): AgentKey's four meta-tools — find_tools, describe_tool, execute_tool, and account — give your agent access to 1,800+ provider tools. - [AgentKey Authentication: Create, Store, and Rotate Your Key](https://docs.agentkey.app/authentication.md): AgentKey uses a single master key (ak_...) to authenticate every request. Learn how to create, store, and rotate your key securely. - [Business Intelligence Tools for AI Agents via AgentKey](https://docs.agentkey.app/capabilities/business.md): Look up companies, acquisitions, addresses, and business entities with structured intelligence tools available through AgentKey's business category. - [Crypto and On-Chain Data Tools for AI Agents via AgentKey](https://docs.agentkey.app/capabilities/crypto.md): Live market data, on-chain analytics, NFTs, DEX pools, wallets, prediction markets, and social intelligence — all via AgentKey's crypto category. - [E-Commerce Product Data Tools for AI Agents via AgentKey](https://docs.agentkey.app/capabilities/ecommerce.md): Search products, fetch details, and pull best-seller rankings from e-commerce platforms through AgentKey's e-commerce category of tools. - [Traditional Finance and Market Data Tools for Agents](https://docs.agentkey.app/capabilities/finance.md): Hundreds of technical indicators, commodity prices, and traditional market data feeds available to your AI agent through AgentKey's finance category. - [All AgentKey Capabilities: 1,800+ Tools Across 8 Categories](https://docs.agentkey.app/capabilities/overview.md): Browse AgentKey's eight tool categories — search, scrape, social, crypto, finance, business, e-commerce, and account — all through one master key. - [Web Scraping Tools for AI Agents — Firecrawl, Jina & More](https://docs.agentkey.app/capabilities/scrape.md): Turn any URL into clean, LLM-ready markdown using Firecrawl, Jina Reader, or BrightData Web Unlocker — including anti-bot and Cloudflare-protected pages. - [Real-Time Web Search Tools for AI Agents via AgentKey](https://docs.agentkey.app/capabilities/search.md): Give your agent real-time web, news, image, and LLM-context search via six providers: Tavily, Brave, Perplexity, Serper, Exa, and Parallel. - [Social Media Data Tools for AI Agents — 19 Platforms](https://docs.agentkey.app/capabilities/social.md): Real-time social data from 19 platforms — X/Twitter, Reddit, YouTube, TikTok, Instagram, LinkedIn, Threads, Douyin, Weibo, and more. - [Automatic Provider Failover: Zero-Interruption Routing](https://docs.agentkey.app/concepts/auto-failover.md): When an upstream provider goes down, AgentKey automatically routes to a healthy backup — no code changes, no interruption, nothing for you to configure. - [Discover, Describe, Execute: AgentKey's Tool Model](https://docs.agentkey.app/concepts/discover-describe-execute.md): AgentKey's three-step model lets your agent find the right tool, confirm its cost, then run it — without loading thousands of tools into context at once. - [Pay-As-You-Go Billing: Credits and Costs Explained](https://docs.agentkey.app/concepts/pay-as-you-go.md): AgentKey bills purely on usage — no subscriptions, no minimums. One credit balance covers every provider, and each tool shows its cost before you spend. - [AgentKey: One Master Key for Every Provider and Tool](https://docs.agentkey.app/concepts/unified-key.md): AgentKey replaces dozens of separate API accounts with a single master key that handles authentication, routing, billing, and failover for every provider. - [Set Up AgentKey in Your AI Agent: Three Install Methods](https://docs.agentkey.app/connect/install.md): Three ways to install AgentKey: one-line shell command, agent-install prompt for chat clients, or desktop config for Claude Desktop. Supports 22 agents. - [AgentKey: All 22 Supported AI Agents and Install Methods](https://docs.agentkey.app/connect/supported-agents.md): AgentKey supports 22 AI agents across CLIs, IDEs, chat clients, and desktop apps. Find your agent and learn which install method to use. - [AgentKey FAQ: Setup, Pricing, and Tool Discovery Guide](https://docs.agentkey.app/faq.md): Answers to common questions about AgentKey: what it does, how to install it, pricing, supported agents, and how tool discovery works. - [AgentKey: One Key for All Your AI Agent Integrations](https://docs.agentkey.app/index.md): AgentKey gives your AI agent access to 1,800+ tools — web search, social media, crypto, and more — through one key and one credit balance. - [AgentKey Quickstart: From Zero to Your First Tool Call](https://docs.agentkey.app/quickstart.md): Install AgentKey, connect your master key, and make your first live tool call in minutes. No per-provider signups, no complex configuration required. - [AgentKey Support: Console, GitHub, Telegram, and More](https://docs.agentkey.app/support.md): Reach the AgentKey team via Telegram, GitHub, or X/Twitter. Manage keys and credits in the console. AgentKey is built by Chainbase.