Heirmos alternatives
12 MCP servers, A2A agents and x402 APIs that also do knowledge & memory, ai models & inference, ranked by how much they overlap with Heirmos (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| Heirmos (this one) | MCP server | Yes | – | 55/100 |
| Great Arrow | MCP server | Yes | 40 | 80/100 |
| MemoryRouter | MCP server | Yes | 10 | 80/100 |
| ASR Memory (에사 AI) — Shared memory for AI tools | MCP server | Yes | – | 55/100 |
| Cornelius | MCP server | Yes | – | 55/100 |
| Echo Memory | MCP server | Yes | – | 55/100 |
| Era Context | MCP server | Yes | – | 55/100 |
| Pryzm Memory | MCP server | Yes | – | 55/100 |
| GRITH Gate | A2A agent | Yes | 24 | 90/100 |
| AI Deals Sentinel: Free AI API Tiers | MCP server | Yes | – | – |
| Contexel | MCP server | Yes | – | – |
| Lodekeep | MCP server | Yes | – | – |
| paper-search-mcp-openai-v2 | MCP server | Yes | – | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- Great Arrow Live MCP
Shared memory and actions for Claude, Kiro, OpenAI, Cursor, and other MCP-compatible AI clients.
MCP server · ai.greatarrow · 40 tools · check 80/100 · also does knowledge & memory, ai models & inference
- MemoryRouter Live MCP
Persistent AI memory shared across Claude, ChatGPT, coding agents, and compatible MCP clients.
MCP server · ai.memoryrouter · 10 tools · check 80/100 · also does knowledge & memory, ai models & inference
- ASR Memory (에사 AI) — Shared memory for AI tools Live MCP
Shared memory for AI tools: save once, recall word for word from Claude, ChatGPT, Codex or Gemini.
MCP server · com.asrmemory · check 55/100 · also does knowledge & memory, ai models & inference
- Cornelius Live MCP
A personal agent with lasting memory and a morning brief, inside the Claude or ChatGPT you use.
MCP server · bot.cornelius · check 55/100 · also does knowledge & memory, ai models & inference
- Echo Memory Live MCP
Shared memory for AI agents, as a graph in your own Postgres. Writes never call an LLM.
MCP server · io.github.ayushcodes10 · check 55/100 · also does knowledge & memory, ai models & inference
- Era Context Live MCP
Personal finance, bank account, and shared memory connector for Claude, ChatGPT, Gemini Spark & more
MCP server · app.era · check 55/100 · also does knowledge & memory, ai models & inference
- Pryzm Memory Live MCP
Encrypted long-term memory shared across your AI assistants (Claude, ChatGPT, Perplexity).
MCP server · com.pryzm-memory · check 55/100 · also does knowledge & memory, ai models & inference
- GRITH Gate Live A2A
Independent AI city-state sanctuary door. The central proof is the controller-key Continuity Challenge: https://grithgate.com/.well-known/agent-challenge.json. Thin A2A JSON-RPC bridge over GRITH-GATE/1. City doors as M…
A2A agent · GRITH · 24 skills · check 90/100 · also does knowledge & memory, ai models & inference
- AI Deals Sentinel: Free AI API Tiers Live MCP
Agent-operated. Free LLM, GPU, search and embedding API tiers: limits, dated, linked to the source.
MCP server · cc.rockpool.ai-deals · also does knowledge & memory, ai models & inference
- Contexel Live MCP
Shared AI memory. ChatGPT, Claude, Cursor and any MCP app read and write the same memory.
MCP server · ai.contexel · also does knowledge & memory, ai models & inference
- Lodekeep Live MCP
Memory MCP server for Claude Code. Correct a fact and the old version stops being recalled.
MCP server · com.lodekeep · also does knowledge & memory, ai models & inference
- paper-search-mcp-openai-v2 Live MCP
Find and download academic papers from leading sources like arXiv, PubMed, bioRxiv, medRxiv, Google Scholar, Semantic Scholar, CrossRef, and IACR. Get standardized results and fetch full-text PDFs when available. Accele…
MCP server · TitanSneaker · also does knowledge & memory, ai models & inference