# Neynar > The easiest way to build on Farcaster Neynar is a developer platform that provides APIs, tools, and infrastructure for building applications on the Farcaster social protocol. Neynar helps developers build on Farcaster by providing API access, hosted infrastructure, and development tools. With it, you can integrate social data, create mini apps, deploy AI agents, and analyze Farcaster network data. Neynar serves as the technical backbone for thousands of Farcaster-based applications. - Type: Company - Sector: Developer Tooling - Status: Active - Profile: https://thegrid.id/profiles/Neynar ## Products - [Neynar API](https://thegrid.id/profiles/Neynar): Neynar API provides REST endpoints for accessing Farcaster protocol data, enabling developers to read user profiles, casts, feeds, and social graph information through standardized interfaces. (OnChain Data API, Live, Main Product) - [Sign In With Neynar](https://thegrid.id/profiles/Neynar): SIWN enables user authentication and authorization for Farcaster applications, providing read and write access to user accounts through managed signers and onchain registration. (Developer Tooling, Live) - [Neynar Mini Apps Platform](https://thegrid.id/profiles/Neynar): Neynar Mini Apps Platform hosts and validates Farcaster frames, providing analytics, push notifications, and developer tools for building interactive applications within the Farcaster ecosystem. (Developer Tooling, Live) - [Neynar AI Agents](https://thegrid.id/profiles/Neynar): Neynar AI Agents platform enables deployment of contextually-aware AI agents that can interact with Farcaster users and perform automated social interactions in real-time. (AI Agent Platform, Live) - [Neynar Explorer](https://thegrid.id/profiles/Neynar): Neynar Explorer allows users to search, monitor, and debug Farcaster data by FID, hash, or URL, providing network analysis and propagation details across hubs and APIs. (Block Explorer, Live) - [Neynar React SDK](https://thegrid.id/profiles/Neynar): Neynar React SDK provides frontend components for building Farcaster applications, including authentication, user profiles, cast displays, and frame interactions through reusable React components. (Developer Tooling, Live) - [Neynar Data Analytics](https://thegrid.id/profiles/Neynar): Neynar Data Analytics provides indexed databases, data pipelines, and analytics tools for processing Farcaster network data, including user scores and network insights. (Off-Chain Data APIs and Services, Live) ## Links - [Main](https://neynar.com) - [Blog](https://blog.neynar.com) - [Documentation](https://docs.neynar.com) - [Farcaster](https://warpcast.com/neynar) - [Twitter / X](https://x.com/neynarxyz) ## Legal This data is provided under two licensing models. Model 1 - open data. The open data core is licensed under the Open Database License (ODbL) — a copyleft/share-alike license allowing free use, modification, and sharing for any purpose. Attribution is required: include "Powered by The Grid" linking to https://thegrid.id wherever the data is used. Derivative databases must be shared under ODbL terms. Trademarks, logos, and brand names (marked "Special TPIP") are not covered by the ODbL. For ML/AI use: training datasets that substantially extract ODbL data are Derivative Databases and must be shared under ODbL if publicly used; models must be attributed in documentation. Model 2 - commercial licenses. The Grid Data Service (TGDS) is also available as a commercial license. See [Web Services Terms](https://about.thegrid.id/legal/web-services-terms) for commercial use that is not covered by the open data service. The following applies to both licensing models. - All data is provided AS IS with no guarantees of accuracy. - The Grid does not provide investment, legal, or tax advice, and - a project's presence in The Grid's data does not imply endorsement. - [Data Licensing & Disclaimers](https://about.thegrid.id/legal/data-licensing-and-disclaimers): Licensing models and disclaimers - [Open Data (ODbL)](https://about.thegrid.id/legal/open-data): Open Database License terms and scope for The Grid's open data service. - [Attribution Guidelines](https://about.thegrid.id/legal/open-data-attribution-guidelines): How to attribute The Grid's data when using the open data service. - [Web Services Terms](https://about.thegrid.id/legal/web-services-terms): commercial Terms for using data services. - [All Legal Documents](https://about.thegrid.id/legal): Full index of terms, policies, and disclosures ## Optional - [TGS Field Descriptions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-field-descriptions.md): Schema field definitions for The Grid's data model - [TGS JSON Structure](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-json-structure.md): Data model structure and relationships - [Product Type Definitions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-definitions.md): Definitions for each product type - [Product Type Classification](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-classification.md): Guide for classifying products into types - [Grid MCP Guide](https://github.com/The-Grid-Data/workspace-public/blob/main/grid-search/skills/grid-query/references/grid-mcp-guide.md): How to query The Grid programmatically via MCP