Colosseum Codex: P-Token, Solana Developer Program, Alpenglow Community Cluster

Here's what's featured in this week's issue:

• Anza releases P-Token on mainnet
• Solana Developer Platform is now open source
• Alpenglow Community Cluster test is live

⚡ P-Token

Anza shipped P-Token, an optimized rewrite of the SPL Token program, to Solana mainnet. Token instructions now use about 96% less compute, freeing 12-13% more block space for the network without changing block limits.

P-Token replaces the underlying code of the existing SPL Token program with a zero-copy architecture built on Pinocchio. Developers keep the same program ID and clients while gaining the compute reduction and new batching features.

Behavioral parity with the original program is backed by extensive auditing, fuzzing, and formal verification.

The change is specified in SIMD-0266, the Efficient Token Program proposal.

Introducing P-Token

🛠️ Solana Developer Platform

The Solana Foundation has open sourced the Solana Developer Platform, an API-first enterprise development system for building and prototyping Solana-powered apps.

The platform provides wallets, token issuance, payments, compliance checks, and a hosted dashboard. It's built on Cloudflare Workers with a REST API and OpenAPI documentation, and the hosted version runs at platform.solana.com.

Full mainnet support is a few months out, and the project currently targets devnet-oriented development. The maintainers note the codebase has not been audited.

A self-hosting guide is expected in the next few weeks.

Solana Developer Platform

🌄 Alpenglow Community Cluster

Anza launched the Alpenglow community test cluster on May 11, letting external validator operators run the new consensus code in a live environment for the first time. The public cluster currently shows about 49 validators participating.

Alpenglow replaces TowerBFT and Proof-of-History with two new protocols, Votor and Rotor, targeting transaction finality of around 150 milliseconds, down from roughly 12.8 seconds. The change also frees up block space currently consumed by validator vote transactions.

Developers are also testing "Alpenswitch," the validator migration between TowerBFT and Alpenglow in a live network setting.

Mainnet activation, originally targeted for Q1 2026, could come next quarter if testing proceeds smoothly, per Anatoly Yakovenko at Consensus Miami. Next steps are packaging Alpenglow into an Agave release and activating it on testnet.

You can explore the live cluster via the Alpenglow Explorer operated by Valid Blocks.

Solana’s Alpenglow Goes Live for Community Testing

⚡ Quick Hits

How AI Agents Can Pay for Things | Pay.sh tutorial and integrations (video) - Bri

Solana's CPO Vibhu Norby Wants to Make Solana "The Chain for AI (video) - CoinDesk

What are Agentic Wallets? A 5-Minute Explainer - Quicknode

How to get started building on Solana - @lagunacarta

Stop Rewriting Your Backend Code - Solana Keychain Guide (video) - Jonas Hahn

The Decentralization of Money: Building the Internet Capital Market on Solana with Catherine Gu - TRM

Scale Your Solana Startup with Superteam Black - Superteam Black

⚙️ Tools & Resources

mpptestkit is a TypeScript SDK for testing pay-per-request Solana APIs using HTTP 402, handling wallet generation, devnet/testnet funding, and on-chain payment automatically.

Nitso is a copy-and-own React component library for Solana wallet UI, built on ConnectorKit and Wallet Standard, providing connect buttons, balance displays, token lists, and a WalletConnect modal via the shadcn registry.

litesvm-go is a Go binding for LiteSVM that gives Go developers a fast, in-process Solana VM for testing programs and clients without a validator or RPC.

metaplex-mastra-agent-template is a starter template for building Solana AI agents that register with the Metaplex Agent Registry, using Mastra, Metaplex Umi, and the PlexChat WebSocket protocol with public and autonomous signing modes.

💸 Funding

MoonPay acquired Dawn Labs, an AI research lab founded in 2025 by Neeraj Prasad, and launched Dawn CLI, an AI trading copilot that turns plain-English prompts into automated strategies for prediction markets.

Arcium ecosystem products collectively raised $7.5M across more than a dozen teams building on the privacy network, with Bench (an opportunity market for trading on signals) and Crafts (a sealed-bid auction launchpad) among the newer joiners alongside Umbra.

💀 RIP

Code4rena announced on May 13 that it is winding down the competitive audit platform. All open contests and bounties will be completed, with per-engagement timelines coordinated with sponsors and posted in the C4 Discord.

👩‍🔧 Get Hired

• Jito Labs is hiring a Senior Software Engineer - JTX
• Blockworks is hiring a Senior Backend Engineer (Solana)
• Fermah is hiring a Senior Rust Engineer
• Exo Tech is hiring a Rust Engineer (Solana)

🎧 Listen to This

Lightspeed

Lucas Bruder, CEO of Jito Labs, joins Lightspeed to discuss the launch of JTX, a new Solana trading platform focused on professional retail users.

He also covers transaction execution, Bam infrastructure, pricing improvements, competition with centralized exchanges, Solana market structure, prediction markets, privacy features, and Jito’s long-term vision for onchain trading.

Inside JTX: Jito’s New Trading Platform | Lucas Bruder

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