Replit Agent v3
Cross-listing of Replit Agent at the harness layer. Replit Agent v3 (2025) added background agents + agent-driven deploy. The Coding-agent-memory row remains canonical for the memory framing.
At a glance
- Type
- Cloud IDE with autonomous coding agent (Replit)
- Tier
- T1
- Section
- Agent IDEs & coding harnesses
- Created
- 2024-09
- Latest release
- not applicable — not OSS
- License
- not applicable — not OSS
- GitHub
- not applicable — no GitHub repo
- Pricing
- Free + Core ($20/mo) + Teams
- Funding
- Replit — $97M Series B 2023 + later rounds (~$1.16B val)
Taxonomy
- storage
- file
- retrieval
- injection
- persistence
- cross-session
- update
- hybrid
- unit
- document
- governance
- inspectable
- conflict
- llm-arbitrate
When to use
Optimised for: browser-only end-to-end prompt-to-deploy
Anti-fit: Replit-hosted only; less control than desktop IDEs
Pros & cons
Pros
Only major agent that ends in a live deploy URL with no other infra needed; massive new-developer user base.
Cons
Locked to Replit's hosting; less raw IDE power than VS Code forks; cost can climb on long agent runs.
Claims & capabilities
Replit Agent v3 GA 2025; Replit-claimed 30M+ users; $97M Series B (2023) + recent funding rounds; key feature: end-to-end deploy from prompt.
Technical surface
- API surface
- Web IDE + REST API
- Backend storage
- Replit-hosted
- Deployment
- Cloud
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- per-user / per-team
- MCP
- searched not found
- A2A
- searched not found
- OpenTelemetry
- searched not found
Similar systems
Other agent ides & coding harnesses in the catalog, ranked by inbound references.
- Bedrock AgentCore (AWS) T2
AWS Bedrock AgentCore — managed runtime to deploy + scale + observe agents. Multi-component: Runtime, Identity, Memory, Gateway, Browser, Code Interpreter, Observability. Distinct from Bedrock Agents (older fixed-config product); AgentCore is the 2025 framework-agnostic runtime for any agent (LangGraph, CrewAI, Strands, OpenAI Agents SDK).
- Claude Code (Anthropic) T1
Anthropic's official agentic coding CLI — runs Claude as a long-running coding agent in the developer's terminal. Memory layer = CLAUDE.md (project + user scoped), agent skills, MCP servers. Released GA October 2024; widely adopted as the reference harness for Claude-as-coder. Plan Mode and Compute Use surfaces extend it from coding to broader desktop automation.
- GitHub Copilot (Agent Mode) T1
The original AI coding assistant (Copilot in editor; 2021). 2025 evolved into a full agentic surface: chat, completions, Agent Mode (multi-step), and Copilot Workspace. Backed by Microsoft. Distinct row from Workspace — this row covers the everyday in-editor + agent mode product, Workspace covers the hosted spec-driven workflow.
- Aider (harness) T2
OSS terminal coding agent by Paul Gauthier — one of the original AI-pair-programmer CLIs (2023). Architect/Editor modes; repo-map for context; uses any LiteLLM-compatible model. Memory via CONVENTIONS.md and .aider.conf.yml — author-edited markdown. Distinct from the separate Aider memory-row in "Coding-agent memory"; this row characterises the harness itself.
- Amazon Q Developer T1
Amazon's developer-focused agent — formerly CodeWhisperer (renamed 2024-Q4). Available as IDE plugins (VS Code, JetBrains, Visual Studio, Eclipse), in AWS Console, and CLI. Strong AWS-tooling integration: Q can read CloudWatch, troubleshoot IAM, suggest AWS-SDK code. Companion to Kiro for spec-driven flows.
- Anthropic Computer Use T1
Anthropic's API-surface capability that lets Claude control a virtual desktop — see screenshots, type, click. Launched 2024-10 as a public beta. Not a finished IDE itself; it's the substrate that other harnesses (and Anthropic's own Claude apps) use to operate a computer.
Related systems
References (1)
- Anthropic Claude (foundation models) depends on at runtime — adjacent-infrastructure cell: Replit Nix-based runtimes; Anthropic Claude (primary)