Hi friend 👋

This summer we've been busy making it easier (and faster) to build on Farcaster — with better search, more mini app tools, new APIs, and big strides in Neynar AI.

Let's dive in.

🔍 Cleaner search & discovery

1. Spam Filtering in Cast Search & Metrics

Cut the noise in your data. Add the x-neynar-experimental header to filter spam from search results and metrics.

→ Search docs | Metrics docs

2. Find Twitter/X Users on Farcaster

Quickly see if someone on X is on Farcaster.

→ Lookup API

3. Quote Casts API

Fetch all quote casts of any cast — great for tracking commentary and engagement.

→ Docs

4. Pro Subscription Data in User Objects

Every user object across our APIs now includes Farcaster Pro status.

📲 Mini app tools & updates

1. Notification Campaigns + Metrics

Create campaigns in the Dev Portal, track delivery rate, open rate, and unique opens. Use these metrics to improve styles and boost performance.

→ Tutorial

2. NFT Minting via REST

Pass a user's FID to mint NFTs directly — no Solidity, nonce management, or wallet lookups required.

3. Mini App Starter Kit Improvements

• Now deployed as a live mini app so you can try it before cloning.

• Automatic light/dark mode switching.

• Built-in Share component that tags a user's best friends via our new Best Friends API.

• Back button & optional haptics now included.

4. SIWN in Mini Apps + Branded Signers

Get permissions without leaving your app, and show “Sent from [your brand]” instead of Neynar.

→ Docs

5. Going Viral with Mini Apps

New guide on making your app trend in the feed.

→ Docs

💸 Crypto & payments

1. x402 Micropayments for APIs

All Neynar APIs now support USDC microtransactions — no API key or login required. Perfect for AI agents.

→ Vision post

2. Cloud Transaction API

Send tokens to multiple FIDs in one API call — no wallet addresses or chain interaction needed.

→ Docs

🛠 Webhooks & infra updates

1. Incident Update

We resolved a rare webhook delivery failure (~1% of cases) caused by an upstream provider. Only @noiceapp was impacted.

2. Webhook Filtering by Neynar Score

Reduce backend noise and infra costs by setting quality thresholds.

→ Scoring docs

🌐 Multi-chain support

1. Solana in Mini Apps

Sign messages, send transactions, and call Solana programs directly.

→ Docs

🤖 Neynar AI & Agents

1. Smarter AI Answers

Now faster and more precise — complete with source links and context.

→ Try it

2. Trending AI Agents

• @bracky: live sports betting on Farcaster. Read how it works

• @noiceapp: reimagining creator payments using Neynar's full product suite.

3. Ask Neynar AI about trending mini apps, what's relevant for you, and more — it's learning daily.

🖌 Dev Portal facelift

Light and dark mode support, with improved onboarding and billing coming soon.

→ dev.neynar.com

📢 We're hiring a Senior Frontend Engineer

DM @rish if you want to help build the future of Farcaster tools.

🚀 Ready to build?

Neynar is free to get started.

👉 Start building with Neynar

See you on Farcaster 🪐