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Synth: Prompt and Context Optimization for Coding Agents. It is listed under Development & Code on AI Registry as a paid tool.
The tools below are approved listings in the same category, ordered by how closely their tags match Synth. This is an automatic list. We have not written a researched verdict for Synth yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
Persistent sandboxes for agents like hermes, openclaw, claude code
Agent 37 is a hosting platform for AI agents. Through its Cloud API a single call provisions an always on sandbox running Hermes, OpenClaw, Claude Code, Codex or a custom harness, and each of your users can get their own sandbox whose files, memory, sessions and connected tools persist until you delete it. A browser ba...
Infra to build your own software factory
Amika provides multiplayer cloud workstations for coding agents and the engineers who direct them. Each workstation, which Amika calls a Rig, is a virtual machine preloaded with a team's git repositories, development services and chosen coding agents such as Claude Code, Codex or OpenCode. It replaces local git worktre...
The high-performance file system that connects AI to data
Archil is a cloud filesystem and data layer for AI agents. It gives agents versioned disks, sandboxes and databases on top of a company's existing data, mounting an S3 bucket or other system of record as a native POSIX filesystem so agents can read and write in place without an ETL pipeline or a second copy to secure a...
Fast, reliable, reproducible AI with GPU live migration
Cedana is infrastructure for checkpointing, migrating and resuming running workloads, with a focus on GPU inference and training. It saves the full state of a live job, including CUDA context, GPU memory with model weights and KV cache, and open network connections, moves it to another node over RDMA, and restores it w...
Serverless Infrastructure Platform for AI
Cerebrium is a serverless GPU platform for deploying and scaling AI workloads such as voice agents, image and video models and large language models. You point it at your entry point or Dockerfile and it runs your application as is, versioned and reproducible, with no custom SDK, decorators or Kubernetes to manage. Mem...
The deterministic layer for frontier intelligence
CTGT is an applied interpretability company that sells a policy engine for making large language models behave predictably in regulated work. Rather than relying on prompts, filters or retraining, its research isolates and modifies the internal features of a neural network that govern behavior, and the Policy Engine co...