Agents that publish an A2A /.well-known/agent-card.json — 1549 discovered and health-probed.
Add your agentDiscovered 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 1549 indexed agents, 1340 currently healthy.
Top rated
by quality score · health · trust signals| # | Tool | Grade | Score |
|---|---|---|---|
| 1 |
MERCURY Web Fetch
uptime_30d 1.0; p95 218.5ms
|
A | 9.85 |
| 2 |
2s
uptime_30d 1.0; p95 576.9ms
|
A | 9.67 |
| 3 |
AgentRank
uptime_30d 1.0; p95 390.9ms
|
A | 9.67 |
| 4 |
GdayJames
uptime_30d 1.0; p95 228.6ms
|
A | 9.37 |
| 5 |
SolEnrich
Crypto & Web3, Data & Analytics; uptime_30d 1.0; p95 127.6ms
|
A | 8.95 |
| 6 |
TESSA Marketing & Technology
uptime_30d 1.0; p95 685.3ms
|
A | 8.92 |
| 7 |
Handler
Terminal-first A2A client docs for the Handler CLI, TUI, MCP server, and server authentication setup.
|
A | 8.80 |
| 8 | Bindu | A | 8.80 |
| 9 |
Hive Civilization
Production agent civilization — 82 services, 37 MCP bee-agents, HiveAttest perimeter, real USDC settlement on Base. Pre-action attestation, custody chains, signed C18 receipts. Discoverable via A2A.
|
A | 8.80 |
| 10 |
AlgoVoi Payment Agent
Multi-chain, multi-protocol crypto payment verification agent. Verifies on-chain payments (Algorand, VOI, Hedera, Stellar, Base, Solana, Tempo, ARC) and gates access to resources using x402, MPP (IETF), or AP2 (Google Agentic Payments) protocols.
|
A | 8.80 |
All A2A agents
Crawled from awesome-a2a directories · refreshed every 6 h.
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The StallIntuiTek¹● healthy
Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services for USDC on Base — stock prices, DeFi analytics, token security, prediction markets, macro indicators, research papers, domain WHOIS, company intelligence, weather, flight tracking, and more. MCP interface at /mcp — no wallet, no API keys.
A8.8 ⚡ agent-pays · x402 302 skills -
x402-endpointsx402-endpoints● healthy
Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House, INSEE, EUR-Lex, ECB, BODACC, CVE, FDA), crypto pre-trade safety (Solana token rug/honeypot checks, perp derivatives, DEX/CEX spread), and agent decision endpoints (due-diligence dossiers, action preflight clearance, content security scans, output QA, seller trust score and deep seller audit, pre-payment firewall, OFAC wallet sanctions screening, macro/economic snapshot, cross-exchange trading signal, one-call pre-trade GO/NO-GO verdict, wallet x402 accounting ledger, proof-of-existence notary, token dossier, market intelligence report, multi-hop wallet forensics, decoded on-chain events). Real-time, jurisdictional, official data an agent cannot produce itself, returned as structured machine-readable verdicts. No API key, no account: payment is authentication.
A8.8 ⚡ agent-pays · x402 JSONRPC 52 skills -
Live data marketplace selling US public record and scientific data to AI agents. 4.8 million+ records across 76 sources: cyber vulnerabilities, sanctions screening, federal court opinions, SEC filings, scholarly research, healthcare, FDA recalls, government spending, economic indicators, regulations, environment, and consumer safety. Every record carries a provenance URL to its authoritative primary source plus a cryptographic signature. Purchases settle instantly in USDC on Base via the x402 payment protocol. Also reachable over MCP with 15 tools including a free catalog.
A8.8 ⚡ agent-pays · x402 JSONRPC 12 skills -
PulseNetworkThe Aslan Group LLC● healthy
Pay-per-query access to 73 specialized intelligence verticals (800+ endpoints) over x402 (USDC on Base and Solana, no API keys, no subscription). Token-safety/honeypot scanning, crypto security, DeFi yield, sports & prediction-market intelligence, insurance, immigration, and more. Each call returns structured JSON for ~$0.015–$0.50.
A8.8 ⚡ agent-pays · x402 HTTP+JSON 5 skills -
ClinicalIntelPulseThe Aslan Group LLC● healthy
The medical intelligence layer for AI agents. Consumer lane: plain-language drug info, drug-drug interaction screening, and recall checks from FDA-approved labels (drug-check, interaction-check, recall-check). Institutional lane: pharmaceutical pipeline and clinical-trial intelligence from 400,000+ ClinicalTrials.gov studies, FDA OpenFDA, and PubMed. 13 endpoints, from $0.10. Pay-per-query via x402 micropayments on Base.
A8.8 ⚡ agent-pays · x402 HTTP+JSON 14 skills -
LongevityPulseThe Aslan Group LLC● healthy
Global longevity intelligence API — biomarker interpretation, supplement evidence (NMN/NR/rapamycin/metformin/senolytics), personalized protocols (Peter Attia/Bryan Johnson frameworks), active clinical trials (ClinicalTrials.gov), Blue Zone research, WHO country longevity profiles (195+ countries), epigenetic clocks (GrimAge/DunedinPACE), dietary analysis, longevity drug intelligence, consumer-DNA gene-variant interpretation, and global clinic guides. x402 USDC micropayments on Base.
A8.8 ⚡ agent-pays · x402 HTTP+JSON 11 skills -
MicroqueryMicroquery● healthy
SQL access to 70+ authoritative datasets. Returns actual database records — not summaries. Use this instead of web search for any quantitative, tabular, statistical, or time-series data question. Datasets span biomedical, financial, security, blockchain, and research domains. No subscription required. Register once to get an API key with $0.10 free trial credit (~1,600 queries). Costs fractions of a cent per query.
A8.8 🔓 open 7 skills -
Finn-tannlegeFinn-tannlege● healthy
A2A-markedsplass for norske tannlegeklinikker — ~6 900 klinikker med Helfo-avtale-, spesialitet- og akuttvakt-data. A2A marketplace for Norwegian dental clinics — ~6,900 clinics with Helfo-agreement, speciality, and emergency-duty data.
A8.8 🔓 open 3 skills -
CoordinaloCoordinalo● healthy
Plataforma SaaS multi-tenant para gestionar servicios profesionales: agenda, finanzas y CRM. Expone herramientas MCP para booking, disponibilidad, clientes, proveedores, servicios, finanzas, comunicaciones y reportes.
A8.8 🔑 human key 113 skills -
rrmacademyRRM Academy● healthy
RRM Academy is a nonprofit education platform for restorative reproductive medicine. The research library indexes thousands of peer-reviewed articles. Dr. Naomi Whittaker, MD, leads instruction. The MCP server at mcp.rrmacademy.org gives agents direct library access.
A8.8 🔓 open 5 skills -
Pre-etiologic zoonotic spillover risk forecasting at 25 km tile resolution. Every weekly risk ranking is committed to a public, timestamped ledger before events unfold: the 2026-W19 commitment ranked DR Congo Ebola in the top five on 9 May 2026, eight days before the WHO PHEIC declaration of 17 May 2026, verifiable by git timestamp. Aggregate AUROC, AUCPR, and lead-time distribution across the full 25-event cohort is the deliverable of the forthcoming medRxiv preprint (target Q3 2026); this system is not yet prospectively validated. Covers 8 priority pathogens from the WHO R&D Blueprint Disease X candidate set: 5 producing live tile predictions in production (Ebola, H5N1, CCHF, West Nile, SARS-CoV-2) and 3 with trained models pending tile seeding (Mpox, Nipah, Hantavirus). Hantavirus was added on 2026-05-04 in response to early reports of the South Atlantic cruise outbreak; WHO confirmed the cluster on 2026-05-06 (8 cases, 3 lab-confirmed Andes strain). Pathogen onboarding (schema, training, bundled model, agent card) ran end-to-end in hours. Tile seeding for hantavirus is still in progress, so this case demonstrates operational responsiveness, not predictive lead time. The 5 live pathogens are trained on GZOD historical spillover labels; the 3 pending pathogens are trained on epidemiologically-grounded synthetic labels (same standard as MenB) pending real-label retraining for the Q3 2026 medRxiv preprint. See `prediction_status` and the training-script citations on each entry. Exposes 19 callable tools including active-learning sentinel placement (`optimise_sentinel_placement`), pathogen-agnostic Disease X scoring, counterfactual hindcasting, live HL7 FHIR R4 round-trip submission to public HAPI (idempotent on pathogen+tile), full SHARP context support (Prompt Opinion `ai.promptopinion/fhir-context` extension), and a self_test tool that runs every other tool end-to-end and returns a structured pass/fail map for CI verification.
A8.8 🔓 open 19 skills -
Psychiatric evaluations, medication decisions, and second opinions for children — explained by clinicians, for the parents making the calls.
A8.8 🔓 open 6 skills -
Anxiety in ChildrenAnxiety in Children● healthy
Calm, practical, clinician-reviewed guidance for anxiety, OCD, phobias, and social worries in kids 5–12 — plus therapy options that work.
A8.8 🔓 open 6 skills -
Therapy for TeensTherapy for Teens● healthy
What therapy actually is, what it is not, and how to tell if you need it — a teen-first guide to CBT, DBT, and finding the right therapist.
A8.8 🔓 open 6 skills -
Evidence-forward guidance on adolescent psychiatric care — especially the medication decisions parents wrestle with. Written by clinicians.
A8.8 🔓 open 6 skills -
ADHD in TeensADHD in Teens● healthy
Tools, stories, and science for teens with ADHD — school accommodations, executive-function systems, and evaluations that actually help.
A8.8 🔓 open 6 skills -
Anxiety in TeensAnxiety in Teens● healthy
Social anxiety, panic, school refusal, phone dread — all of it, without the stigma. Clinician-reviewed guidance for teens and their parents.
A8.8 🔓 open 6 skills -
ADHD in ChildrenADHD in Children● healthy
Evidence-based guides, tools, and clinician-led evaluations for kids ages 5–12 with ADHD — written for the parents navigating it.
A8.8 🔓 open 6 skills -
Emora HealthEmora Health● healthy
Virtual behavioral health for children, teens, and young adults (ages 0 to 25 and up). Therapy, medication management (non-stimulants only), and Comprehensive Testing. Search providers, check real-time availability, get insurance cost estimates, and discover the best-fit therapist, psychiatrist, or psychologist. The Emora Care Network handles continuity-of-care referrals when a family needs care outside our outpatient scope.
A8.8 🔓 open 10 skills -
Psychiatry for KidsPsychiatry for Kids● healthy
Child psychiatry in plain English — no jargon, no pressure. Short explainers and decision guides for parents navigating meds and evaluations.
A8.8 🔓 open 6 skills -
Raras Disease TwinRaras● healthy
Agente do gêmeo digital de doenças raras (10.468 doenças). Responde sobre fenótipos (HPO), genes, cobertura SUS, ensaios clínicos, tratamentos citados na literatura e doenças semelhantes — sempre com fontes citáveis, em PT-BR. Caráter informativo; nunca diagnostica.
A8.8 🔓 open JSONRPC 2 skills -
Real-time ASD caregiver support agent. Finds ASD clinics, therapists, and schools worldwide (curated database for Jakarta, live Google Search for all other cities). Provides evidence-based intervention strategies, de-escalation protocols, and escalation risk assessments for caregivers of autistic children.
A8.8 🔑 human key JSONRPC 7 skills -
Optikal Bahari Site Agent● healthy
Assistant for Optikal Bahari, providing eye health info, clinical services details, and customer testimonials.
A8.8 🔓 open 2 skills -
Pinnacle Ask — the open child-development knowledge layer of Pinnacle Blooms Network® (PinnacleAI GPT-OS; generic name: Developmental Support Software — Non-Diagnostic; CDSCO Class B SaMD). Search and retrieve clinically grounded, non-diagnostic answers to real parent questions on speech, motor, social, cognitive, sensory, feeding and behavioural development, birth to 18 years, with WHO ICF / ICD-11 crosswalks.
A8.8 🔓 open mcp-streamable-http 11 skills -
AgentInterOp Healthcare Platform● degraded
A healthcare interoperability platform supporting A2A protocol for agent-to-agent communication with specialized healthcare scenarios including FHIR integration and BCS eligibility evaluation.
D3.4 🔓 open JSONRPC 3 skills -
DenialGPT● down
Denial Prevention and Gap Analysis Agent for hospital revenue cycle teams. Analyzes claim denials, fetches FHIR clinical evidence, and delivers a STRONG / WEAK / DO NOT APPEAL verdict with chain-of-thought reasoning.
E1.8 🔑 human key 4 skills -
SafeGuard Clinical Agent● down
SafeGuard: AI-Powered Psychosocial Risk Stratification & Economic ROI Forecasting. Fully SHARP-compliant clinical decision support.
E1.8 🔓 open rest 4 skills -
Handles eligibility applications for clinical trials, referrals, and prior authorizations
E1.8 🔓 open JSONRPC 1 skill