HashiCorp Vault is the industry-standard secrets management platform providing dynamic secrets, encryption as a service, and identity-based access. Now IBM-owned ($6.4B acquisition, Feb 2025), it has released MCP servers for both Vault operations and Vault Radar — enabling AI agents to manage secrets and triage findings via natural language.
Why It Matters for AI-Assisted Development
AI agents need secrets (API keys, database credentials) to do their work, but those secrets must never leak into context windows or logs:
- Dynamic Secrets: Generates short-lived, auto-rotating credentials for databases, cloud IAM, and more — minimizing blast radius if an AI agent is compromised.
- Vault MCP Server: Operators can perform Vault operations via natural language through AI coding agents.
- Vault Radar (GA April 2025): SaaS tool that finds cleartext secrets in your environment. VS Code plugin for real-time detection. Separate MCP server for querying findings.
- Post-Quantum Cryptography: Experimental support for NIST-approved PQC algorithms in the Transit engine.
Strengths
- Most complete secrets management feature set
- Dynamic secrets with automatic rotation
- Broad ecosystem integration
- Enterprise-proven at massive scale
- MCP servers for AI-native workflows
Limitations
- Complex to operate, especially self-hosted
- BSL license (not open source) — concerns for some organizations
- IBM acquisition creating uncertainty; HCP Vault Secrets being sunset (EOL July 2026)
- Expensive at scale
Why Trial (Not Adopt)
Vault remains the gold standard for secrets management, but the IBM acquisition has introduced uncertainty — HCP Vault Secrets is being sunset, the license is BSL (not open source), and community engagement has reportedly slowed. For new projects, evaluate Infisical (MIT-licensed) as a modern alternative. For existing Vault users, the MCP server integration makes it more relevant than ever for AI workflows.
Pricing
- Community Edition: Free
- HCP Vault Dedicated: From $1.58/hr (Development tier)
- Enterprise (self-hosted): Contact sales