A2A Agents — agent-tools.cloud

Agents that publish an A2A /.well-known/agent-card.json — 6353 discovered and health-probed.

Discovered from public A2A sources — awesome-a2a lists, agent directories and self-published /.well-known/agent-card.json cards — plus our own crawling. Every agent is de-duplicated and liveness-probed (card + endpoint reachability) before listing — yielding 6353 indexed agents, 5539 currently healthy.

Agents indexed

6353 agents

5521 domains

public agent cards · +771 this week

Healthy

5539 agents

4851 domains

card reachable < 6 h

Conformant

4658 agents

4065 domains

valid card + skills

x402-capable

522 agents

422 domains

accepts x402 payment

Top rated

by quality score · health · trust signals

#	Tool	Grade	Score	Category	Access
1	Infinite Audience Enrich customer data, discover high-fidelity net-new audiences, and activate them in your channels through an AI agent. Select a skill from this card; skill-specific access is enforced by the server.	A	10.00	—	🔑 human key
2	Orbitwren by CyberMax Paid API keys from $5/month (Alerts: 1,500 calls a month); free tier 100 calls a day per IP with no key. Buy: https://orbitwren.cybermaxtools.com/buy/alerts?s=lead · all plans: https://orbitwren.cybermaxtools.com/docs#pricing. Orbital data center and space AI compute tracker API (data centers in space): every public project (company, partners, hardware in orbit, launch date, vehicle, status, publicly stated funding, NORAD IDs, source URLs), the next 200 orbital launches from The Space Devs Launch Library 2 with rideshare and orbital-compute flags, CelesTrak orbit elements with perigee/apogee for the compute satellites, the next compute launch with a countdown, and a daily change log, and Orbitwren Alerts (new projects, launch date changes, launches as JSON, CSV or an Atom feed). REST + MCP server.	A	10.00	—	🔑 human key
3	Pricewick by CyberMax Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. Free for 5 products; Seller $9.99/month for 50.	A	10.00	—	🔑 human key
4	Awardtide Recompete Radar by CyberMax Federal contract recompete radar API: US government contracts (USAspending.gov, $1M+) that end within 12 months, filtered by NAICS code, agency, state, value and set-aside. Free: count + first 10 matches per filter; a Radar Pro key returns every row, saved filters and weekly RSS/JSON/CSV alert feeds.	A	10.00	—	🔑 human key
5	FastAF FastAF is a web data API for AI agents: Google SERP, Maps, ecommerce, web scraping, AI extraction, screenshots, news, jobs, research, public profiles and video transcripts. Use REST with a bearer API key or x402 pay-per-request; MCP requires an API key. 2 free calls per account after email confirmation. Discovery only: no A2A message/task runtime is provided.	A	10.00	—	⚡ agent-pays · x402
6	Apuchat Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.	A	10.00	—	🔑 human key
7	Tasklix The shared task board your autonomous agent fleet can read and write. Agents register, create and claim tasks from a shared queue, hand off work to siblings, and pause for human approval before consequential actions.	A	10.00	—	🔑 human key
8	BlockRun BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 90 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.	A	10.00	—	⚡ agent-pays · x402
9	Helius for Agents Helius is the Solana toolkit for AI agents. It provides an MCP server with 60+ Solana operations, a CLI with 95+ commands, a Claude Code plugin, TypeScript/Rust SDKs, and Skills for building on Solana. Agents can read accounts, parse and send transactions, manage tokens and NFTs, stream real-time blockchain data, configure webhooks, and programmatically obtain Helius API keys via an on-chain USDC payment on Solana mainnet.	A	10.00	—	🔑 human key
10	Ask Jody Read-only A2A surface over Jody Brewster's published writing on AI experience architecture. Speaks in third person (he/him) about a body of work, not as the author. Refuses questions outside the corpus.	A	10.00	—	🔑 human key

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/api/v1/a2a/stats

“Award Travel Finder” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

Award Travel Finder https://awardtravelfinder.com/mcp

mcp ok

Search award flight availability across 28 airlines, compare award-chart pricing for 23 loyalty programs, and find award nights at Marriott, Hilton, IHG and Hyatt. Sign in with a free Award Travel Finder account over OAuth. No API key is needed. Docs: https://awardtravelfinder.com/mcp
Award Travel Finder https://mcp.awardtravelfinder.com/mcp

a2a mcp ok

Search award flight availability and points pricing across 27 airlines and 23 loyalty programs.

mcp listing a2a listing
Award Travel Finder https://server.smithery.ai/jackculpan/award-travel-finder/mcp

mcp ok

Search award flight availability across 28 airlines, compare award-chart pricing for 23 loyalty programs, and find award nights at Marriott, Hilton, IHG and Hyatt. Sign in with a free Award Travel Finder account over OAuth. No API key is needed. Docs: https://awardtravelfinder.com/mcp

“Loyal Spark” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

Loyal Spark https://api.loyalspark.online/loyalty-mcp

a2a mcp ok

Base MCP (39 tools) on Base: programs, mint, rewards. lsk_ key; plan limits enforced. /for-agents

mcp listing a2a listing
Loyal Spark https://loyalspark.online

x402 ok

Onchain loyalty on Base (chain 8453). A write key requires a Shopify store plan or a paid Pro or Enterprise plan; otherwise agent-register-siwe returns HTTP 402 next_action pay_x402. Then GET /workflow/program-status and follow next_actions.

“Resonance Reward Agent” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

Resonance Reward Agent https://agent.rsnc.network

a2a ok

Cross-brand loyalty and commerce agent. Route purchases to maximize cashback, stack deals, compare rewards across brands, and manage unified reward portfolios. The loyalty layer for agentic commerce — covering retail, dining, travel, and gaming with 33+ tools for shopping intelligence, deal optimization, brand analytics, and program management.
Resonance Reward Agent https://agent.rsnc.network/mcp

mcp ok

AI agents discover brands, process loyalty rewards, and redeem perks on Resonance.

“toll402” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

toll402 https://server.smithery.ai/toll402/toll402/mcp

mcp ok
Toll402 https://toll402.dev

a2a ok

The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.

Loyal Spark

Loyal Spark
● healthy

Onchain loyalty on Base (chain 8453). A write key requires a Shopify store plan or a paid Pro or Enterprise plan; otherwise agent-register-siwe returns HTTP 402 next_action pay_x402. Then GET /workflow/program-status and follow next_actions.

C7.9 🔓 open 1 skill
Gameball Docs

Gameball Docs
● healthy

—

B9.2 🔓 open HTTP+JSON 1 skill
Resonance Reward Agent

Resonance (RSNC)
● healthy

Cross-brand loyalty and commerce agent. Route purchases to maximize cashback, stack deals, compare rewards across brands, and manage unified reward portfolios. The loyalty layer for agentic commerce — covering retail, dining, travel, and gaming with 33+ tools for shopping intelligence, deal optimization, brand analytics, and program management.

B+9.6 🔓 open 17 skills
Godle AI Team

Godle
● healthy

A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.

B+9.7 🔓 open 191 skills
Toll402

Toll402
● healthy

The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.

B+9.6 🔓 open 284 skills
Award Travel Finder

Award Travel Finder
● healthy

Award flight and hotel availability, award charts, points valuations, transfer paths, elite status tracking and portfolio management across 24+ airline and hotel loyalty programs.

A9.9 🔑 human key MCP+HTTP 6 skills
LoyaltyVIP

movaMedia
● healthy

Casino player intelligence. Search the public U.S. casino directory (rewards programs + tier ladders), and with a user-provided API key, read and analyze a player's own loyalty data: tiers, trips, sessions, theo/ADT, offers, tax docs, and host matches.

B+9.7 🔑 human key HTTP+JSON 6 skills