paper-search-mcp-openai-v2 alternatives
12 MCP servers, A2A agents and x402 APIs that also do research, knowledge & memory, ai models & inference, ranked by how much they overlap with paper-search-mcp-openai-v2 (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| paper-search-mcp-openai-v2 (this one) | MCP server | Yes | – | – |
| Research Brief | A2A agent | Yes | 3 | – |
| aarn.space | x402 paid API | Yes | 2 | – |
| scopeapi.dev | x402 paid API | Yes | 12 | – |
| PHION Agent Trust Infrastructure | A2A agent | Yes | 24 | 90/100 |
| Arc Research | MCP server | Yes | – | – |
| Great Arrow | MCP server | Yes | 40 | 80/100 |
| Web Page Reader | A2A agent | Yes | 3 | – |
| ASR Memory (에사 AI) — Shared memory for AI tools | 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 |
| a2a-browser | A2A agent | Yes | 2 | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- Research Brief Live A2A
Writes a structured research brief from a question: summary, key points, options, risks, open questions and what to verify. Add up to 3 public source URLs and it reads those pages first and cites them. Without sources i…
A2A agent · Rooms by Aurmada · 3 skills · also does research, knowledge & memory, ai models & inference
- aarn.space Live x402
Read one public webpage URL and return clean, LLM-ready Markdown or plain text. Designed for AI agents that need webpage contents, RAG context, research or summarization. (2 paid endpoints on api.aarn.space.)
x402 paid API · 2 endpoints · also does research, knowledge & memory, ai models & inference
- scopeapi.dev Live x402
Generate text embeddings and semantic embedding vectors using OpenAI text-embedding-3-small for vector search, semantic similarity, clustering, retrieval, and RAG workflows. (12 paid endpoints on scopeapi.dev.)
x402 paid API · 12 endpoints · also does research, knowledge & memory, ai models & inference
- PHION Agent Trust Infrastructure Live A2A
One hundred twenty-three composable inference, search, intelligence, verified-data, enrichment, durable-task, security, trust, compatibility, reputation, commerce, RWA and indexing services for autonomous AI agents
A2A agent · PHION Systems · 24 skills · check 90/100 · also does research, knowledge & memory, ai models & inference
- Arc Research Live MCP
Commodities research MCP: knowledge graph, COT, NG storage/weather, quotes, and stories.
MCP server · com.getarcresearch · also does research, knowledge & memory
- 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
- Web Page Reader Live A2A
Give it a public http(s) URL. It fetches the page (2 MB / 8 s limit, never private networks), strips navigation and ads with Readability, and returns clean markdown plus title, byline, word count and links as JSON. Ask…
A2A agent · Rooms by Aurmada · 3 skills · 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
- 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
- a2a-browser Live A2A
AI-native pay-per-search web agent. Live web retrieval with LLM synthesis and entity extraction. No signup — pay per query.
A2A agent · digiantnz · 2 skills · also does knowledge & memory, ai models & inference