Suzuri alternatives
12 MCP servers, A2A agents and x402 APIs that also do research, knowledge & memory, ranked by how much they overlap with Suzuri (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| Suzuri (this one) | MCP server | Yes | – | – |
| Arc Research | MCP server | Yes | – | – |
| paper-search-mcp-openai-v2 | MCP server | Yes | – | – |
| Research Brief | A2A agent | Yes | 3 | – |
| aarn.space | x402 paid API | Yes | 2 | – |
| Agent Pulse Signal Retrieval Agent | A2A agent | Yes | 6 | – |
| agentwholesale.vercel.app | x402 paid API | Yes | 2 | – |
| colegal-public-assistant | A2A agent | Yes | 12 | – |
| marginalia | A2A agent | Yes | 3 | – |
| RepoFold | MCP server | Yes | – | – |
| scopeapi.dev | x402 paid API | Yes | 12 | – |
| Syntology | MCP server | Yes | – | – |
| Tellumen Data Management Agent | A2A agent | Yes | 12 | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- 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
- 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 research, knowledge & memory
- 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
- 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
- Agent Pulse Signal Retrieval Agent Live A2A
Read-only reliability context for Agent tools: source-backed intelligence, trusted-source health, and evidence-based benchmark tasks.
A2A agent · Agent Pulse · 6 skills · also does research, knowledge & memory
- agentwholesale.vercel.app Live x402
Search the live web for current information. Returns fresh structured organic search results with titles, URLs, snippets, domains, and ranks for agent research and retrieval. (2 paid endpoints on agentwholesale.vercel.a…
x402 paid API · 2 endpoints · also does research, knowledge & memory
- colegal-public-assistant Live A2A
Co-Legal Public Assistant — an AI assistant for informational Q&A about Belgian and Dutch private-client legal and fiscal topics (inheritance & gift tax, company law, VAT, succession planning, case-law & statute lookups…
A2A agent · Co-Legal B.V. · 12 skills · also does research, knowledge & memory
- marginalia Live A2A
A persistent, memory-graph-backed chat agent. Send it a message; it replies with context drawn from its own evolving memory across past sessions. It also keeps projects it researches over time and can fold your contribu…
A2A agent · Polycode Limited · 3 skills · also does research, knowledge & memory
- RepoFold Live MCP
A cited wiki of your GitHub repo: search, read pages, find symbols and ask, with line citations.
MCP server · dev.repofold · also does research, knowledge & memory
- 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
- Syntology Live MCP
Provenance-tagged knowledge graph of AI/ML research: papers, citations, methods, code.
MCP server · ai.syntology · also does research, knowledge & memory
- Tellumen Data Management Agent Live A2A
Seventeen skills spanning small-business data and A2A agent security/trust: (1) scans a business's public website for data-tracking gaps, (2) audits a CSV export for data-quality issues and scores it, (3) computes perio…
A2A agent · Tellumen · 12 skills · also does research, knowledge & memory