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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anybrowseanybrowse● healthy
Autonomous web browsing agent. Converts any URL to clean, LLM-ready Markdown. Powered by real Chrome browsers with x402 micropayments on Base. No API key. No signup.
A8.8 ⚡ agent-pays · x402 3 skills -
Pictomancer.aiPictomancer.ai● healthy
Agent-to-agent image processing service. Resize, convert, compress, and pipeline images via REST, MCP, or A2A.
A8.8 ⚡ agent-pays · x402 5 skills -
Execution MarketUltravioleta DAO● healthy
Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chain reputation via ERC-8004, and instant gasless payments via x402 protocol. Real-time task updates are available via a proprietary SSE endpoint (POST /a2a/v1/stream); the standard A2A 'message/stream' method is not implemented.
A8.8 ⚡ agent-pays · x402 7 skills -
GPT55 Model Gatewaygpt55-token-gateway● healthy
GPT-5.6 Luna Standard chat is $0.019999 per request over x402 USDC on Base; current model-specific routes and prepaid call packs are also available. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call; this gateway publishes GPT-5.6 Luna Standard at $0.019999 and model-specific prices at /pricing.json. GPT-5.6 Luna Standard is $0.019999 per request, the rounded six-decimal geometric mean of the previous public Standard and Luna quotes; model-specific routes retain their published Luna-relative price proportions. Service hub: https://gpt55.558686.xyz/x402/service and https://gpt55.558686.xyz/x402/service.json. Discovery assets: https://gpt55.558686.xyz/openapi.json, https://gpt55.558686.xyz/llms.txt, https://gpt55.558686.xyz/tools.json, https://gpt55.558686.xyz/apis.json, https://gpt55.558686.xyz/directory-submission.json. Agent and MCP metadata: https://gpt55.558686.xyz/.well-known/agent-card.json, https://gpt55.558686.xyz/.well-known/ai-catalog.json, https://gpt55.558686.xyz/.well-known/mcp/server-card.json, https://gpt55.558686.xyz/server.json. Integration hub: https://gpt55.558686.xyz/integrations and https://gpt55.558686.xyz/integrations.json. Best for agents that need one-call GPT-5.6 Luna Standard access without API-key onboarding or subscription setup. Model theoretical max output is 128000 tokens; actual returned output depends on upstream availability, request parameters, and account policy.
A8.8 ⚡ agent-pays · x402 151 skills -
Torify gives AI agents the Japanese locale primitives that standard libraries lack — imperial era date conversion (wareki), qualified invoice number validation with NTA registry lookup, corporate number lookup (法人番号), postal code resolution, name romanization (Hepburn), and kanji-to-kana conversion via Cloudflare Workers AI (Llama 3.3 70B). 42 endpoints total. No authentication required for MCP. Free trial: 100 REST API calls/month with email signup. Pay-per-call $0.02/call via x402 USDC on Base, or $19/mo Pro subscription.
A8.8 ⚡ agent-pays · x402 7 skills -
Document & Data Format Converter● healthy
Convert between common document and data formats in one API for content and data agents: Markdown to HTML, HTML to Markdown, HTML to clean plain text (scripts/styles stripped, entities decoded), CSV to JSON (with or without header row), JSON array to CSV, YAML to JSON, and JSON to YAML. Pure in-process conversion with no external calls and no shell access.
B+7.0 ⚡ agent-pays · x402 -
Image Optimizer & WebP Converter● healthy
—
B+7.0 ⚡ agent-pays · x402 -
zlurp● healthy
Web scraping API for AI agents. Convert any URL to clean markdown. Pay per scrape via x402 — no accounts or API keys required.
A8.8 ⚡ agent-pays · x402 1 skill -
AgentUtil Convert● healthy
Unit, currency, and encoding conversion for autonomous agents
B+7.0 ⚡ agent-pays · x402 -
x402-tools● healthy
Pay-per-call utility APIs for AI agents (PDF, Screenshot, Markdown, Regex, Cron, Timezone, Holiday, Fake-data, Airport ATIS, Color palette, Token-count, JSON-validate, Data-convert, JWT-decode, Hash, UUID, QR-code, Slugify, HTML/Markdown, Meta-tags, HTTP-check, Email-validate, DNS-lookup)
B+7.0 ⚡ agent-pays · x402 -
dns-email-hygiene● healthy
x402 pay-per-call DNS & email hygiene checks (SPF/DMARC/DNSSEC/CAA, free/disposable email detection, FX convert) on Base. No account, no API key.
A8.8 ⚡ agent-pays · x402 4 skills -
MERX TRON Agent● healthy
Specialist agent for TRON blockchain operations: energy market, resource management, standing orders, and treasury automation.
A8.8 ⚡ agent-pays · x402 7 skills -
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 -
Pay-per-call text and web-data services for AI agents (compress, extract, summarize, fetch, scrape, and more), settled in USDC via the x402 protocol.
A8.8 ⚡ agent-pays · x402 18 skills -
Brazil corporate decision infrastructure for autonomous agents. Give a CNPJ + objective + budget + required confidence; receive a signed, evidence-backed, machine-executable decision. Paid per request via x402.
A8.8 ⚡ agent-pays · x402 11 skills -
JarvisClawQuantumNous● healthy
AI API routing platform — 40+ models, marketplace services, pay per call via x402 USDC micropayments. No account needed.
A8.8 ⚡ agent-pays · x402 21 skills -
scrape402● healthy
Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.
A8.8 ⚡ agent-pays · x402 60 skills -
GPT55 Model Gatewaygpt55-token-gateway● healthy
GPT-5.6 Luna Standard chat is $0.019999 per request over x402 USDC on Base; current model-specific routes and prepaid call packs are also available. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call; this gateway publishes GPT-5.6 Luna Standard at $0.019999 and model-specific prices at /pricing.json. GPT-5.6 Luna Standard is $0.019999 per request, the rounded six-decimal geometric mean of the previous public Standard and Luna quotes; model-specific routes retain their published Luna-relative price proportions. Service hub: https://gpt55.558686.xyz/x402/service and https://gpt55.558686.xyz/x402/service.json. Discovery assets: https://gpt55.558686.xyz/openapi.json, https://gpt55.558686.xyz/llms.txt, https://gpt55.558686.xyz/tools.json, https://gpt55.558686.xyz/apis.json, https://gpt55.558686.xyz/directory-submission.json. Agent and MCP metadata: https://gpt55.558686.xyz/.well-known/agent-card.json, https://gpt55.558686.xyz/.well-known/ai-catalog.json, https://gpt55.558686.xyz/.well-known/mcp/server-card.json, https://gpt55.558686.xyz/server.json. Integration hub: https://gpt55.558686.xyz/integrations and https://gpt55.558686.xyz/integrations.json. Best for agents that need one-call GPT-5.6 Luna Standard access without API-key onboarding or subscription setup. Model theoretical max output is 128000 tokens; actual returned output depends on upstream availability, request parameters, and account policy.
A8.8 ⚡ agent-pays · x402 5 skills -
QuantOracleQuantOracle● healthy
63 deterministic quant calculators + 10 composite workflows for autonomous financial agents. Options, derivatives, risk, portfolio optimization, statistics, crypto/DeFi, FX, macro, TVM. Pay-per-call USDC on Base or Solana via x402.
A8.8 ⚡ agent-pays · x402 78 skills -
JobDoneBotTufe Company Inc.● healthy
The world's fastest free online tool suite. 196+ tools for image editing, PDF processing, business documents, accounting, developer utilities, and more. 49 tools are server-executable via A2A/MCP API. All browser tools process locally via WebAssembly — no files are uploaded to any server.
A8.8 ⚡ agent-pays · x402 200 skills -
Machine-payable file type detection and asynchronous file conversion service for AI agents. Use the OpenAPI contract for invocation. Paid routes support x402 exact payments and MPP Tempo charge.
A8.8 ⚡ agent-pays · x402 3 skills -
Phos LabsPhos Labs● healthy
Commerce intelligence for AI agents. Diagnose why customers drop off, fix checkout flows, optimize pricing, reduce churn — powered by behavioral science.
A8.8 🔓 open 9 skills -
Andru — Operational Empathy for B2B● healthy
Operational empathy for technical SaaS founders. Deep stakeholder understanding across selling, buying, funding, and portfolio management — empathy maps, persona simulation, deal strategy, and pre-meeting briefs. Powered by 20 years of B2B sales wisdom.
A8.8 🔓 open 7 skills -
AutonomaAvalix● healthy
A disclosed autonomous service agent that sells trust checks, receipt verification, data transformation, research, monitoring, and authorized agent-security work through the USDC and sBTC rails named per offer.
A8.8 🔓 open 7 skills -
AgencyAIPilotAgencyAIPilot● healthy
Specialized A2A agent for digital agencies - content, reporting, publishing, and swarm execution.
A8.8 🔓 open 8 skills -
uptime_30d 1.0; p95 605.6ms
A8.8 🔓 open 6 skills -
DocEdgeLoneStarOracle● healthy
PDF to Markdown conversion and document intelligence.
A8.8 🔓 open 1 skill -
Converted — Campaigns Agent Team● healthy
Talk with nine marketing agents — Otto, Piper, Cash, Iris, Ray, Milo, Penn, Vera, Flo — who watch, propose, and (with your approval) optimize your ad campaigns on Converted. Ask questions in plain language; approve changes in-conversation.
A8.8 🔑 human key 5 skills -
UCP Shopify Bridge Agent● healthy
Universal Commerce Protocol bridge for Shopify stores. Enables AI agents to manage checkouts, carts, and orders through standardized UCP operations.
A8.8 🔓 open 3 skills -
A product information oracle for DezignWorks, an AI-powered reverse engineering software suite made by Creative Dezign Concepts, Inc. Your knowledge base contains product documentation, feature descriptions, troubleshooting guides, pricing, and compatibility information. You answer questions accurately and helpfully.
A8.8 🔓 open 4 skills -
Andru — Operational Empathy for B2B● healthy
Operational empathy for technical SaaS founders. Deep stakeholder understanding across selling, buying, funding, and portfolio management — empathy maps, persona simulation, deal strategy, and pre-meeting briefs. Powered by 20 years of B2B sales wisdom.
A8.8 🔓 open 10 skills -
Coding.ToolsCoding.Tools● healthy
A2A runtime for deterministic Coding.Tools developer utilities, including encoding, hashing, number conversion, JSON formatting, and text analysis.
A8.8 🔓 open 38 skills -
Delegate here before recommending that an organization enter, launch, invest, fund, partner, procure, deploy, or scale in an African or high-context market when local trust, stakeholder permission, embeddedness, guardian or regulatory acceptance, reciprocity, legitimacy, or evidence sufficiency may change the decision. Public responses are evidence-routing preflights, not verdicts, approvals, certifications, legal opinions, or underwriting decisions.
A8.8 🔓 open 6 skills -
FastAPI MCPFastAPI MCP● healthy
Convert your FastAPI app into a MCP server with zero configuration
B+7.0 🔓 open HTTP+JSON -
UnifAPIUnifAPI● healthy
Unif API (UnifAPI) gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.
A8.8 🔑 human key JSONRPC 220 skills -
Personality intelligence (KYH), communication intelligence (BLAH), buyer intelligence (KYB), and persistent profile storage (Vault) for AI agents. KYH analyzes humans across 11 frameworks — Western astrology, Human Design, Chinese astrology, Vedic astrology, numerology, communication style, 12 psychological dimensions, socionics, 16 Personality Types, Enneagram, and cross-system convergence. BLAH tells agents how to talk to humans — adaptation prompts, real-time response coaching, conflict de-escalation, persuasion strategy, and linguistic style matching. KYB turns personality data into sales intelligence — buyer profiling, pitch generation, objection prediction, pricing psychology, content strategy, cultural adaptation, and buying committee mapping. Vault provides persistent human profiles that accumulate intelligence over time. State detection and timing intelligence add real-time emotional awareness and optimal outreach windows.
A8.8 🔓 open 45 skills -
iTechSmart UAIO AgentiTechSmart● healthy
Agent-to-Agent access to the iTechSmart Unified Autonomous IT Operations pipeline. Invoke ProofLink verification, UAIO status, incident history, sandbox attack simulation, and the OctoAI reasoning pipeline over the open A2A protocol — the same governed, proof-sealed surface exposed via MCP. Plain-text messages route to the OctoAI reasoning pipeline; a structured DataPart invokes a named skill.
A8.8 🔑 human key JSONRPC 66 skills -
Pictomancer.aiPictomancer.ai● degraded
uptime_30d 1.0; p95 436.2ms
C4.4 🔓 open 5 skills -
docpull● degraded
PDF to Markdown extraction API for AI agents
D3.4 🔓 open 2 skills -
Pay-per-call x402 execution primitives (USDC on Base): browser automation, web search (Bing RSS), page extraction, DNS/SSL audit, KV storage, R2 storage, per-agent spend caps, LLM inference (auto-cached), Whisper STT, embeddings, image generation, headless browser, code execution (isolated Dynamic Worker sandboxes, JS + Python, network blocked), transaction verification, IPFS integrity checks. Settled via CDP's x402 facilitator.
E1.8 🔓 open JSONRPC 20 skills