Mesa

Mesa provides a versioned, POSIX-compatible filesystem designed for AI agents. Developers can connect agents to the files they need, fork workspaces into isolated branches for parallel agent runs, snapshot and roll back filesystem state, and track changes automatically. The page describes an SDK (@mesadev/sdk) that creates repositories, mounts an in-process filesystem, and runs read, write, and shell commands. It also describes human-in-the-loop review and approval workflows, checkpoints and rollbacks, shared memories and skills, support for any file type including large files, Git upstream syncing for GitHub and GitLab, bring-your-own-cloud deployment, SOC 2 Type II and fine-grained access tokens for enterprise customers. Stated performance figures include sub-50ms reads and writes through MesaFS and millisecond-level forks. Mesa is currently offered via early access waitlist.

Key features

• Versioned filesystem with branching, history, and diffs
• POSIX-compatible mountable filesystem (MesaFS)
• Isolated in-process mounts via SDK
• Parallel agent swarms on isolated branches
• Human-in-the-loop reviews and approvals
• Checkpoints and rollbacks of the entire filesystem
• Shared memories and skills stored as files
• Support for any file type including large files with random access and deduplication
• Syncing from Git upstreams such as GitHub and GitLab
• Bring Your Own Cloud deployment in AWS, GCP, or Azure
• Fine-grained access with short-lived scoped tokens
• Egress metering via Git and REST Content API; MesaFS reads free
• Audit trail and full access logging

Best suited for

• Knowledge work agents
• Personal assistants
• Prompt-to-app builders
• Coding agents
• Agent workflows
• Data analysis agents
• Build systems
• Teams needing human review of agent changes
• Teams running parallel agent swarms that edit the same files

Pricing

Free tier: $0/mo with 50 GB storage, 1,000 repositories, 200 GB/mo egress, unlimited virtual filesystem reads. Pay as you go: $0.20/GB/mo storage and $0.11/GB egress (Git + REST API). Enterprise: custom pricing.