Tools below can help you build on Farcaster more easily

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Libraries and SDKs

• @neynar/nodejs-sdk by Neynar (official library)
• @neynar/react-native-signin by Neynar (official library)
• farcaster-js library for Neynar by Standard Crypto
• Next-js library for Neynar by Alex Grover
• GoLang signer generation library for Neynar by Gallery
• SDK to build on React Native, fetch feed with Neynar APIs by Cameron Voell
• farcaster-py library for using Neynar Hubs by vrypan.eth

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Open source clients and bots using Neynar Hubs and APIs

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Web

• Opencast (github) by Stephan Cill
• Herocast (github by Hellno
• Managed signer client by Neynar

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Mobile

• Farcaster Expo example by Dylan Steck
• Wownar Expo/RN example by Neynar
• Farcaster Expo example by Edric
• Farcaster Expo by Matthew
• FCRN by Cameron Voell
• React Native Farcaster Starter by Nate

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Bots

• Open source repo to build bots that reply using Neynar webhooks by David Furlong
• Follow all bot that follows users by Will Robinson
• Frames bot that replies with frames by Neynar

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Frames and Cast actions using Neynar frame validate

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Frames

• farcards by undefined

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Cast actions

• Follower count cast action by Neynar
• Bot or not by Angel

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Data science and analytics

• Neynar tables on Dune allowing Farcaster queries on Dune dashboards — sample dashboards by pixel, yesyes and shoni
• Neynar SQL playground to query real-time Farcaster protocol data — sample dashboard by ghostlinkz

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Tools and debugging

• Vasco Neynar and Warpcast debugging tools by Pedro
• ChatGPT Neynar SQL bot to write analytics Neynar SQL queries for Farcaster data by iconia
• ChatGPT Dune SQL bot to write dune queries for Farcaster data by iconia
• Fario Farcaster command line tools in Python on by Vrypan
• CastStorage to check user storage by Sam
• Farcaster Scraper to fetch, filter, and fine-tune your channel scraping by Leo Simon
• ChatGPT bot to help write code using Neynar APIs and Dune by Emre