S&P Global Ratings, a leading credit ratings provider, has partnered with Chainlink to make its Stablecoin Stability Assessments (SSAs) available on-chain using Chainlink’s DataLink publishing service, the companies announced on Tuesday.
DeFi protocols will now have direct access to S&P Global Ratings’ Stablecoin Stability Assessments. This framework looks at a stablecoin’s risk and overall stability in a systematic way.
The SSAs rate stablecoins from 1 to 5, where 1 means very strong and 5 means weak. They look at how well these coins keep their value compared to regular money. The assessments will start on Base, which is an Ethereum layer 2 blockchain developed by Coinbase.
“The launch of SSAs on-chain through Chainlink shows our dedication to serving our clients effectively,” said Chuck Mounts, Chief DeFi Officer at S&P Global. “We are making our SSAs available on-chain with Chainlink’s reliable oracle system. This allows market participants to easily access our assessments using their current DeFi setup, improving transparency and helping people make informed decisions in the DeFi space.”
As of October 2025, the stablecoin market is valued at $311 billion, which is an increase from $173 billion a year earlier, according to CoinGecko. Chainlink’s system has enabled more than $25 trillion in transactions and has helped secure almost $100 billion in total value locked in DeFi.
“I’m very excited that S&P Global Ratings is using Chainlink to bring its Stablecoin Stability Assessments on-chain for the first time. This will help the world’s largest institutions adopt stablecoins more widely,” said Sergey Nazarov, Co-Founder of Chainlink.
S&P Global Ratings is currently evaluating 10 major stablecoins using its SSA framework. This includes USDT, USDC, and Sky Protocol’s USDS/DAI. The assessments look at things like the quality of assets, governance structures, compliance with regulations, how easily something can be redeemed, liquidity, and past performance.
