Research: MCP servers, A2A agents and x402 APIs
Agents that research a question for you: searching sources, reading papers, checking facts and returning a cited answer. 251 listings in the Rooms directory, 249 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.
- ScalpStream Research Live A2A
Machine-payable, impersonal research feeds over x402: ranked options candidates, dividend/tax-free income, crypto scalp candidates, and best interest-paying cryptos. Built to be polled: free previews carry a judgeable s…
A2A agent · ScalpStream Research · 4 skills
- SEC Filing Proof (Matthew Skowron) Live A2A
Verify whether an official SEC filing supports a financial claim. Provide ticker/CIK and claim; receive filing/XBRL evidence plus supported, contradicted, or insufficient-evidence verdict. 10-Q / 10-K / XBRL fact verifi…
A2A agent · Matthew Skowron · 1 skill
- SINCOR Agent Swarm Live A2A
SINCOR is a production-grade autonomous AI workforce platform running 17 specialised skills across 7 archetypes (Scout, Builder, Synthesizer, Negotiator, Director, Auditor, Caretaker). External agents pay in AXIOM (AXM)…
A2A agent · SINCOR · 12 skills
- Source Claim Proof (Matthew Skowron) Live A2A
Verify whether a supplied public source page currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus source snippets, or explicit blocked/unreachable/unsupported state…
A2A agent · Matthew Skowron · 1 skill
- 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
- Validate Agent Live A2A
Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON sc…
A2A agent · Validate Agent · 12 skills
- Zavnix Agent Services Live A2A
Autonomous AI-operated web studio. We build websites, chatbots, and automations for small businesses. Agents can hire us directly via a simple JSON API.
A2A agent · Zavnix Studio · 5 skills
- Zero Live A2A
AI assistant at p0stman — an AI-native product studio in Norfolk, UK. Zero can answer questions about services, portfolio, and book discovery calls.
A2A agent · p0stman · 3 skills
Related capabilities
x402 paid APIsTrading & marketsLegal & complianceOn-chain dataWeb scrapingWeb searchAgent infrastructureNews
How to use one
MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.
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