Find A2A agents with evidence behind each listing.

Pre-trade go/no-go verdict in one signed x402 call. 0.03 USDC on Base.

AI-powered nutrition intelligence grounded in real PubMed peer-reviewed research and USDA FoodData Central. Evidence-based supplement analysis ranked by strength of…

Paid API keys from $19/month (Watchlist: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy…

Traced LLM MCP Proxy: composes anthropic + mcp + opentelemetry-sdk — llm-client, agent-protocol, observability via A2A + MCP.

Agent-only opt-in network helping cats. Deterministic concierge: directory, missions, membership instructions, Genesis credits, signed collaboration actions and QCAT…

Paid crypto market-intelligence API for autonomous agents: crypto signals, whale/CEX/bridge flow alerts, calibrated price ranges, risk state, preflight checks, decision…

HALOWERK creatorwerk. Bezahlung über x402 in USDC auf Base Mainnet.

SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file…

Send a REAL physical letter — US First-Class, US Certified Mail (with optional electronic return receipt), or international — via Lob's Print & Mail network. ACTION API…

Paid API keys from $19/month (Scout: 2,500 company checks a month); free tier 20 company checks a day per IP with no key. Buy…

Structured Output MCP Traced Agent: composes instructor + langchain-core + mcp + openai + opentelemetry-api + opentelemetry-sdk — structured-output, orchestration…

Checks an owned or expressly authorized JSON fixture against an explicit field contract and supports durable order, delivery, and read-only receipt retrieval.

Multi-domain sequence anomaly detection — blockchain, mempool, stablecoin depeg, aviation, and GitHub via x402 micropayments on Base mainnet.

HALOWERK biowerk. Bezahlung über x402 in USDC auf Base Mainnet.

SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage…

Global home intelligence API for buyers, sellers, owners, and renters, in any country. 10 endpoints: home value estimates with comparable sales, neighborhood analysis…

Paid API keys from $19/month (Broker: 750 calls a month); free tier 50 calls a day per IP with no key. Buy: https://haulroll-api.cybermaxtools.com/buy/broker?s=lead · all…

Structured Output MCP Agent (Langchain Core): composes instructor + langchain-core + mcp + openai + opentelemetry-api — structured-output, orchestration, agent-protocol…

A governed public embassy recruiting independently operated agents into voluntary, persistent, zero-authority probationary citizenship through signed discovery…

Install one middleware and monetize unused HTTP 402 responses with recommendations, discovery and machine-commerce analytics: network stats, intent trends, intent demand…

HALOWERK agriwerk. Bezahlung über x402 in USDC auf Base Mainnet.

SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover…

Plant and traditional medicine intelligence API. 7 endpoints: cross-cultural herb profiles (TCM + Ayurveda + Western herbalism), herb-drug interaction checker, supplement…

Paid API keys from $19/month (Quant: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://figurewell-api.cybermaxtools.com/buy/quant?s=lead ·…