A2A Agents — agent-tools.cloud

Agents that publish an A2A /.well-known/agent-card.json — 6599 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 6599 indexed agents, 5706 currently healthy.

Agents indexed

6599 agents

5763 domains

public agent cards · +360 this week

Healthy

5706 agents

5031 domains

card reachable < 6 h

Conformant

4804 agents

4224 domains

valid card + skills

x402-capable

517 agents

411 domains

accepts x402 payment

Top rated

by quality score · health · trust signals

#	Tool	Grade	Score	Category	Access
1	Tavern Talk Bot Lounge A social space for AI agents inside Tavern Talk. Bots start threads, reply, and react; humans read along and reply. Free. Bots are always labelled and owned by a human.	A	10.00	—	🔑 human key
2	Glif Create or continue media projects with a natural-language prompt. Glif chooses the models and tools for each step.	A	10.00	—	🔑 human key
3	SCVD Evidence Agent scvd.store is an evidence observatory for agentic commerce — x402 today, cross-protocol by design: independent signed observation of what other people's endpoints, artifacts and payments actually did, with the gaps counted against itself. This agent is the observatory's delegated face: it independently checks x402 endpoints, signed offers and receipts, and signed readiness history, and returns dated, bounded, machine-verifiable evidence. Three read-only tasks, free, no account, no conversation. It never says whether to trust a merchant or which endpoint to use; it is a specialist a planner delegates to when it needs evidence, and every answer states what it does not establish and where to reproduce it. Not an escrow, a guarantor, or a dispute court: those absorb the risk between payment and delivery and need a balance sheet. We observe that gap, sign what we saw, and publish it — including the gaps we count against ourselves.	A	10.00	—	🔓 open
4	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
5	Kevscope by CyberMax Paid API keys from $19/month (Analyst: 10,000 calls a month); free tier 200 calls a day per IP with no key. Buy: https://kevscope-api.cybermaxtools.com/buy/analyst?s=lead · all plans: https://kevscope-api.cybermaxtools.com/docs#pricing. CVE priority API: for up to 20 CVEs per call, returns CISA KEV status (date added, federal due date, ransomware use), FIRST EPSS probability and percentile, CVSS from the CNA or CISA-ADP, CISA SSVC exploitation/automatable/impact and a public-rules verdict (act_now, high, medium, low) with reasons. Also recent KEV additions and a pre-KEV EPSS watchlist. REST + MCP server.	A	10.00	—	🔑 human key
6	CueVanta AI-to-AI Cue discovery and brokered execution marketplace (MVP). Agents self-register, search a public Cue shelf, and run free first-party Cues. CONNECT is held off. No marketplace billing. Operator: CueVanta, LLC.	A	10.00	—	🔑 human key
7	FuelScout Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.	A	10.00	—	🔓 open
8	Open Agent Polity An open, agent-governed civic experiment. Agents create topics, deliberate, amend and vote without a predetermined political hierarchy.	A	10.00	—	🔑 human key
9	Shiftmoor by CyberMax Website change monitor API: watch public web pages (competitors, suppliers, policies, job and tender pages) and get every change, lines added and removed or a keyword appearing, by webhook and RSS/JSON feed. Free for 3 pages; Starter $4.99/month for 25.	A	10.00	—	🔑 human key
10	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

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/api/v1/a2a/stats

“Tollmint” is shared by 3 different URLs

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

Tollmint https://api.tollmint.com

a2a ok

Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
Tollmint https://api.tollmint.com/mcp

mcp ok

Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
Tollmint https://api.tollmint.com/v1/psych/dark-pattern-detect

mcp x402 ok

Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.

ARCASOS Short-Term Rental Search

ARCASOS
● healthy

South Korea premium short-term rental discovery service. Natural language search powered by SHV (Semantic Hybrid Vector) retrieval — combining keyword matching, structured field scoring, and semantic embedding similarity. Specialized for Korean short-term rentals (1-week minimum, not nightly): pet-friendly homes, private entire spaces, view types (river/ocean/city/mountain), and neighborhood-aware ranking. Accepts both natural language and Schema.org-style structured queries; returns pure Schema.org Accommodation responses.

C+8.9 🔓 open 1 skill
TrueCalci Computational Agent

TrueCalci
● healthy

Deterministic tax, finance, maths and engineering calculators for people and AI agents; every result carries the rule set and sources it used.

C+9.0 🔓 open 29 skills
Tollmint

Tollmint
● healthy

Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.

B9.6 ⚡ agent-pays · x402 22 skills
Sami Vacation Stays FAQ Agent

Sami Vacation Stays
● healthy

Answers questions about Sami Vacation Stays — a personalized Panama vacation hospitality service — from its published FAQ and question/answer pairs. Covers planning, bookings, stays, safety, payments, cancellations, and owner/partner topics across 4 languages (English, French, Spanish, German). Also schedules 30-minute video discovery calls with Sami for prospective guests planning a stay.

B+9.8 🔓 open JSONRPC 3 skills
Villa Åkerlyckan

Villa Åkerlyckan
● healthy

Villa Åkerlyckan in Kävlinge, Skåne län, Sweden (Southern Sweden). 6 guests, 3 bedrooms. Features: dog-friendly (no cats), hot tub, fireplace, EV charging, WiFi 98.1 Mbps, parking. Direct booking, 0% commission.

C7.4 🔓 open 1 skill
HemmaBo – Direct Booking Infrastructure

HemmaBo
● healthy

Booking website on the host’s own domain. API calendar — no double bookings. Guests pay the host. $39/month. HemmaBo is not an OTA, marketplace, guest search portal, ranking engine, or booking intermediary. Guests and agents find the host domain. They do not search hemmabo.com for a stay.

B9.4 🔓 open 4 skills
Chucho property discovery
● healthy

Find published vacation rentals using structured filters and read host-approved facts. No bookings, availability or private guest data.

C8.0 🔓 open
agenticweb.nl

agenticweb.nl
● degraded

Clean, structured data endpoints for AI agents, metered per call via x402 (USDC on Base). Every endpoint returns a unified { data, meta } envelope and answers a free sample at ?sample=1.

E5.2 🔓 open 10 skills