PromptShip
Comparison

PromptShip vs E2B + Neon + Fly

Teams shipping agent products often stitch this stack together: E2B for code-execution sandboxes, Neon for branchable Postgres, Fly for app hosting. All three are excellent at what they do. The cost is the stitching: three APIs, three auth models, and glue code you own to move an agent's work from sandbox to database to deployment. PromptShip is a deployment platform that gives agents the whole environment as one primitive: app, database, and cache together. Clone and promote workflows are rolling out in open beta; rollback is available now.

PromptShip operates its own platform layer, it is not a wrapper around Cloud Run, Vercel, Render, or any other PaaS. Its comparison set is Cloud Run, Fly, Railway, and Vercel.

Stack comparison

PromptShipE2B + Neon + Fly
Isolated full-stack env (app + Postgres + cache)✓Sandbox + branch + app, wired together by you
Clone an environment with its data in one stepOne call · rolling out in open betaNeon branches Postgres; sandbox and app state live elsewhere
Promote to production with rollbackRolling out in open betaFly deploys + your own promotion scripts
Sleep at $0, wake on requestRolling out in open betaPer product: Fly autostop, Neon scale-to-zero, configured separately
One MCP surface for agents✓Three APIs, three auth models
Per-agent identity + one action ledger across the stack✓Attribution split across three audit logs
One vendor, one bill✓✕
Multi-region deploys✕Fly: yes

When the stitched stack is the right choice

  • • You need Fly's multi-region deployment with anycast routing.
  • • You only need code-execution sandboxes. E2B is great at exactly that.
  • • Your workflows are already built around Neon's Postgres branching.
  • • You want best-of-breed control over every layer and are happy to own the glue.

When PromptShip is the right choice

  • • Your agents operate whole environments, not just code execution.
  • • You want environment and data cloning together, a workflow rolling out in open beta, not per-product snapshots.
  • • You want tested-build promotion, rolling out in open beta, plus rollback and attribution as platform primitives, not scripts.
  • • You want one MCP server in the IDE instead of three integrations.
Get started

One platform for your agents

Full-stack environments with real data and tested-build promotion are rolling out in open beta. Rollback and one action ledger are available now.

[ Join the waitlist ]

Already have access? Install the MCP

$ claude mcp add --transport http promptship https://mcp.promptship.dev/mcp