S&P Global (NYSE: SPGI) announced a collaboration between S&P Global Ratings and Chainlink to publish its Stablecoin Stability Assessments through Datalink, Chainlink’s institutional-grade data publishing service. The move makes S&P’s independent stablecoin risk analysis available directly to blockchain applications and smart contracts for the first time.

The SSAs evaluate leading stablecoins on a five-point scale from “very strong” to “weak,” assessing their ability to maintain a stable value relative to fiat currencies. Although not credit ratings, the assessments provide risk transparency to investors and DeFi protocols seeking to integrate traditional analytical frameworks into their platforms.

In the release published Tuesday, Chuck Mounts, S&P Global’s Chief DeFi Officer, said the partnership “underscores our commitment to meeting clients where they are” and aims to enhance informed decision-making within DeFi. Datalink allows data providers to securely publish verified data onchain without building or maintaining their own infrastructure.

Chainlink co-founder Sergey Nazarov described the integration as a key step for institutional adoption of stablecoins, emphasizing that it enables major financial entities to incorporate S&P’s analytics into the digital asset economy. Chainlink’s infrastructure, which has supported over $25 trillion in transaction value, already underpins much of the onchain economy and collaborates with major financial players such as Swift, Fidelity, and Mastercard.

The onchain SSAs debut on Base, Coinbase’s Ethereum layer two (L2) network, with expansion to additional blockchains planned. S&P’s stablecoin framework currently covers assets such as tether ( USDT), USDC, and Sky Protocol’s USDS/DAI.

The collaboration follows the July passage of the GENIUS Act, which introduced the first U.S. federal regulatory framework for stablecoins. With the stablecoin market’s capitalization now above $300 billion, the partnership positions S&P and Chainlink to support the next phase of compliant, data-driven digital asset innovation.

• What is the purpose of S&P Global’s collaboration with Chainlink?
  The partnership makes S&P Global Ratings’ Stablecoin Stability Assessments directly available to blockchain protocols.
• What are Stablecoin Stability Assessments (SSAs)?
  SSAs rate stablecoins on a five-point scale based on their ability to maintain value relative to fiat currencies.
• Which blockchain hosts the initial launch of the onchain SSAs?
  The assessments first launch on Base, an Ethereum layer two (L2) network incubated by Coinbase.
• How does this benefit institutional DeFi participants?
  It gives DeFi protocols and investors direct access to trusted stablecoin risk data within their onchain infrastructure.

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