Ressl AI has launched Pidrive, a file storage service built explicitly for AI agents that exposes S3-backed object storage as a POSIX-style filesystem. Rather than requiring agents to navigate raw S3 API calls, Pidrive mounts cloud storage at /drive via WebDAV over HTTPS, enabling standard Unix commands — ls, cat, grep, cp, echo — to work directly against cloud-stored files. The service runs on macOS natively and provisions davfs2 automatically on Linux, requiring no additional drivers. The CLI accepts a --name flag for agent identity, and the entire setup sequence — register, verify, mount — is scriptable for embedding in container entrypoints or agent bootstrap routines.
Beyond basic filesystem access, Pidrive adds capabilities for multi-agent workflows. Files can be shared via public URLs with a single command, transferred to other agents by email address, and searched semantically across stored content. The service also exposes a REST API and publishes a skill.md file at its root, conforming to the <a href="/news/2026-03-14-optimizing-web-content-for-ai-agents-via-http-content-negotiation">Agent Skills open standard</a>. The skill.md frontmatter describes the service's core capabilities in under 1,024 characters, making it machine-consumable by any agent runtime implementing the standard — allowing agents to discover, register, and use Pidrive without human-authored tool wrappers or custom MCP servers.
Pricing runs from a free tier at 1 GB storage with 100 MB bandwidth, through Pro at $5 per month for 100 GB, up to Team at $20 per month for 1 TB with unlimited bandwidth. The service is discoverable via Vercel's skills.sh registry and can be installed into over 40 agent runtimes — including Claude Code, Codex, Cursor, and GitHub Copilot — using the npx skills CLI. The practical gap it fills is narrow but real: an agent that can run grep or diff against a shared mount point can do things that an agent calling PutObject and GetObject against bare S3 simply cannot.