Clearstream is a leading provider of post-trade infrastructure services for international securities transactions. They offer settlement, custody, and collateral management services for bonds, equities, and investment funds. The Clearstream developer surface is built on regulated post-trade messaging rather than a public REST API.
swift financial-services settlement securities custody capital-markets apis-json iso-20022 collateral-management post-trade-infrastructure naftiko iso-15022
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Updated
Jun 2, 2026