Chainstack updates: May 12, 2026

Chainstack MCP tools now advertise standard MCP annotations for safer execution, and the server reports its real release version on the initialize handshake.

MCP Server. Every Chainstack MCP server tool now advertises standard MCP tool annotations (readOnlyHint, destructiveHint, openWorldHint):

• Compatible clients (ChatGPT, Claude Code, Cursor, Windsurf) skip confirmation prompts on read-only calls — docs search, status, pricing — and require explicit approval on writes and deletes: creating, updating, or deleting projects and nodes, sending contact messages, and requesting testnet funds.
• serverInfo.version on the MCP initialize handshake now reports the actual Chainstack release version instead of the underlying library version — visible wherever your agent shows the connected server’s identity.