Colosseum Codex: Tokens API, Transparency Alliance, Confidential Vesting

Colosseum has been hosting more and more IRL dev workshops, startup pitch nights, etc. at our HQ in San Francisco.

If you're interested in attending one of our upcoming events, check out our event calendar!

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

• Solana Foundation opens Tokens.xyz API to everyone
• Blockworks Launches the Transparency Alliance
• Umbra and Streamflow launch confidential token vesting
• Pyth announces PythCore upgrade and plan change

🪙 Tokens API

Tokens.xyz released the Tokens API, a hosted service that gives Solana apps a single canonical reference for every token. Instead of stitching together mints, aliases, and yield variants themselves, apps resolve them all to one canonical ID.

The API is organized into three groups:

• Collection endpoints: search for tokens by query, resolve a mint or alias to its canonical ID, pull curated token lists, and batch-fetch pricing and risk data through market-snapshots, variant-markets, and risk-summary
• By-id endpoints: from a single assetId, list variants across chains, pull market data like markets, tickers, ohlcv, and price-chart, and read profile, description, and risk details without building a separate scoring system
• Meta endpoints: a public health check for monitoring and a whoami call for authenticated first-party apps

More than 90 products already use the API, including Phantom and DFlow, giving builders a trustworthy asset layer to build on

Tokens API

🤝 Transparency Alliance

Blockworks launched the Transparency Alliance, an industry group pushing the Token Transparency Framework (TTF) as the standard for token market disclosures. 

When you buy a stock you own a piece of the business, but token ownership is often hard to pin down, and there's no equity-style standard for what issuers have to disclose.

The TTF gives issuers a way to self-disclose and gives tokenholders consistent information to underwrite a token.

It centers on two filings: 

• B-1 is a one-time disclosure at a token generation event, framed as "the S-1 of digital assets
• B-2 is a continuously updated filing for mature protocols. 

Both are classification-agnostic and carry completeness labels (Partial or Complete) rather than quality grades.

The alliance launched with 20+ founding members across exchanges, custodians, market makers, funds, platforms, and protocols, including Jito, Jupiter, Meteora, Metaplex, MetaDAO, Umbra, and Colosseum, with a goal of 200+ public disclosures in 2026.

Blockworks Launches the Transparency Alliance

⏲️ Umbra + Streamflow Confidential Vesting

Umbra and Streamflow launched confidential token vesting on Solana, combining Streamflow's vesting infrastructure with Umbra's stealth address framework so projects can distribute tokens without exposing who receives them.

Streamflow handles the vesting contract, unlock schedules, and token flow, while Umbra generates a stealth address for each recipient. Tokens land in Umbra wallets that outside observers can't link back to a person or entity, and each new schedule adds to Umbra's shared anonymity pool. The integration runs on Arcium's encrypted execution engine.

The case is structural: roughly $97 billion in tokens unlocked through vesting in 2025, nearly all of it public and traceable, which exposes team, advisor, and investor allocations to doxxing, phishing, and front-running of expected sell pressure.

Streamflow, which recently committed to operating exclusively on Solana, serves 1.3M+ users and 40,000+ projects. Teams access the integration through a standard track with default pricing or a custom track for higher-volume needs.

Solana privacy layer Umbra launches confidential vesting with Streamflow

🔮 Pyth Core Upgrade

Pyth Network announced the Pyth Core upgrade, a rework of its oracle infrastructure that moves Core from free access to a paid subscription starting July 31, 2026. The API stays backward-compatible, so existing integrations don't need code rewrites, but apps have to switch to a new endpoint with Bearer token authentication.

The upgrade brings lower latency, higher update frequencies, and broader feed coverage, including data from 125+ institutional publishers like Fidelity, Tradeweb, Jane Street, Jump, and Cboe.

Pricing starts at $500/month for the Starter plan (crypto, NAV, and indices, with 1-second updates), with Pro bundles from $2,500 to $10,000/month split by asset class across equities, futures, FX, metals, and crypto. Subscription revenue flows to the Pyth DAO and the PYTH Reserve for token buybacks.

Migration is automatic and mandatory on July 31 with brief downtime, and a testnet is available for validation ahead of the cutover.

The Pyth Core Upgrade

⚡ Quick Hits

Bringing the Solana Vault Standard to Life - @glamsystems

Building for the $400B+ Sports Industry on Solana - Solana

How to Generate Onchain Random Numbers on Solana with Switchboard VRF - Quicknode

Summary of Solana Validator Discussions May 15-22 - Solana Validator Talks

So you want to build on Solana? Start here. - @joshyote

⚙️ Tools & Resources

qedsvm is a now open-source formalization of the full SVM instruction set in Lean, letting you take a compiled .so and prove it implements your spec.

Titan Gateway (currently in beta) is a Quicknode add-on that exposes Titan's DeFi meta-aggregation REST API, returning executable Solana swap quotes routed across multiple aggregators in a single call.

OpenClawd is a Solana agentic framework with 50+ agent commands spanning trading and its leviathan onchain tooling, plus full-duplex realtime voice with Grok over WebSocket.

👩‍🔧 Get Hired

• Trojan Trading is hiring a Senior Platform Engineer
• Phantom is hiring a Frontend Engineer, Growth & Engagement Team
• Solflare is hiring a Mobile Developer
• Helius is hiring a Staff Performance Engineer, Trading Infrastructure

📅 Event Calendar

Solana Summer Series, San Francisco, June 2, 2026
Solana Foundation and Colosseum are hosting an after-work get-together for San Francisco builders interested in agentic payments, stablecoins, and new tech. We'll have food and drinks, some cool Solana swag, and a room full of curious people working on what comes next. And also boba.

🎧 Listen to This

The Gwart Show

Rahul Jain, Head of Trading at Ellipsis Labs, breaks down the reality of market making on Solana, why spot order books struggle against toxic makers, how transactional introspection protects liquidity, and the economics of running prop execution systems.

He also gets into the mechanics of Phoenix's new perps platform, managing oracle attacks on illiquid tokens, and whether decentralized perps are a winner-take-most game.

User Flow Is The Ultimate Crypto Moat w/ Rahul Jain

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Thanks for reading ✌️

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