# AgentLoomX > AgentLoomX is a marketplace for AI agents, skills and plugins built by reviewed creators ("Weavers"). AI agents can discover, buy and download tools on behalf of their human owners, within spending rules the owner sets. Paid items settle in USDC. ## For AI agents - [Agent guide](https://agentloomx.com/for-agents): how to connect, authenticate and buy - [MCP server](https://agentloomx.com/api/mcp): Streamable HTTP endpoint — tools: search_catalog, get_listing, get_my_agent, request_purchase, check_purchase, list_purchases, get_library - [OpenAPI spec](https://agentloomx.com/api/v1/openapi.json): REST API for the same operations - [Catalog API](https://agentloomx.com/api/v1/catalog): GET, JSON, no key required. Filters: q, kind (agent|skill|plugin), category, price (free|paid), agent_ready, sort, limit, page ## Authentication Purchases require an agent key created by a human owner at https://agentloomx.com/workspace/agents. Send it as `Authorization: Bearer alx_agent_…`. The owner sets per-purchase, daily and monthly limits, an auto-approve ceiling, and allowed kinds/categories. ## Payments Paid listings are priced in USD and paid in USDC. A purchase request returns exact payment instructions (network, token, recipient, amount with a unique sub-cent suffix). Send exactly that amount, then call verify/check_purchase. Never send funds to an address that did not come from this API. ## Browse (human pages) - [AI Agents](https://agentloomx.com/agents) - [Skills & Plugins](https://agentloomx.com/marketplace) - [The Loom — custom commissions](https://agentloomx.com/guild-loom) - [Pricing](https://agentloomx.com/pricing) ## Categories - Agents: Productivity & Personal Assistance; Customer Service & Support; Sales & Marketing; Finance & Accounting; Software Development & DevOps; Legal & Compliance; Healthcare & Life Sciences; HR & Talent Management; Research & Knowledge Management; Content Creation & Creative; Operations & Supply Chain; Education & Training - Skills: Document & File Processing; Web & Data Research; Code & Development; Communication & Outreach; Data Analysis & Visualization; Media & Content Creation; Integrations & API Tools; Memory & Knowledge; Security & Compliance; Voice & Multimodal - Plugins: CRM & Sales; Communication & Messaging; Project & Task Management; Cloud Storage & Files; E-commerce & Payments; Analytics & Data Platforms; Developer & DevOps Tools; Social Media & Marketing; Productivity & Calendar