Replit Agent alternatives

No documented built-in persistent semantic memory store. Session duration expanded to 200 min (Agent 3); Agent 4 shifts toward persistent runtimes. Temporal used for orchestration durability, not semantic memory. Full Replit Agent record →

  1. 1 Devin (Cognition) Coding-agent memory

    also in Coding-agent memory · same storage (file) · same retrieval (injection) · same memory unit (document) · also offered managed · also has MCP

    OSS ? Self-host ✓ Managed ✓ MCP ✓ Compare with Replit Agent →

  2. 2 Lovable Coding-agent memory

    also in Coding-agent memory · same storage (file) · same retrieval (injection) · same memory unit (document) · also offered managed · also has MCP

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Replit Agent →

  3. 3 Bolt.new (StackBlitz) Coding-agent memory ⚠ stale — no commits since 2024-12

    also in Coding-agent memory · same storage (file) · same retrieval (injection) · same memory unit (document) · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP — ★ 17k MIT Compare with Replit Agent →

  4. 4 OpenAI Codex (cloud agent) Coding-agent memory

    also in Coding-agent memory · same storage (file) · same retrieval (injection) · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 128k released 2026-10-27 Apache-2.0 (Codex CLI; cloud agent proprietary) Compare with Replit Agent →

  5. 5 AGENTS.md File-backed / editor paradigms

    same storage (file) · same retrieval (injection) · same memory unit (document)

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 25k MIT Compare with Replit Agent →

  6. 6 Gemini CLI memory (save_memory / GEMINI.md) Coding-agent memory

    also in Coding-agent memory · same storage (file) · same retrieval (injection) · also has MCP

    OSS ✓ Self-host ✓ Managed ? MCP ✓ ★ 108k released 2026-10-21 Apache-2.0 Compare with Replit Agent →

  7. 7 Claude Code auto-memory Claude Code memory mechanisms

    same storage (file) · same retrieval (injection) · same memory unit (document) · also has MCP

    OSS ? Self-host ? Managed ? MCP ✓ Compare with Replit Agent →

  8. 8 Cursor Rules File-backed / editor paradigms

    same storage (file) · same retrieval (injection) · same memory unit (document) · also has MCP

    OSS ? Self-host ? Managed ? MCP ✓ Compare with Replit Agent →

Ranked by shared memory design (storage, retrieval, conflict handling, memory unit), same section and shared must-haves (open source, self-hosting, MCP), with adoption as a tie-breaker. ✓ confirmed · — no · ? not in the catalog yet. Want picks for your own requirements? Use the chooser. Checking a whole project? Check your stack.