Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6468 discovered and health-probed.

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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 6468 indexed agents, 5619 currently healthy.

Agents indexed
6468 agents
5633 domains
public agent cards · +755 this week
Healthy
5619 agents
4934 domains
card reachable < 6 h
Conformant
4728 agents
4137 domains
valid card + skills
x402-capable
520 agents
414 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
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
2 Insidewell by CyberMax
Paid API keys from $19/month (Watchlist: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://insidewell-api.cybermaxtools.com/buy/watchlist?s=lead · all plans: https://insidewell-api.cybermaxtools.com/docs#pricing. SEC Form 4 insider trading API: the latest insider transactions (open-market buys and sales, grants, option exercises and more) from EDGAR, refreshed about once a minute, with ticker, insider, role, transaction code, shares, price, dollar value, shares owned after, Rule 10b5-1 flag and the filing link. Filters: ticker, insider, code, minimum value, date range, role, 10b5-1 plan. Plus cluster buys (2+ insiders buying within 7 days). REST + MCP server. Information only, not investment advice.
 A 10.00
3 Figurewell API by CyberMax
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 · all plans: https://figurewell-api.cybermaxtools.com/docs#pricing. Point-in-time SEC XBRL fundamentals API: per-filing key metrics (revenue, gross profit, operating income, net income, EPS, shares, assets, liabilities, equity, cash, long-term debt, operating cash flow, capex, dividends, free cash flow, margins) for every US SEC filer, as first reported, with EDGAR acceptance time (UTC and New York), after-close flag, as_of filtering, multi-ticker snapshots and first-reported vs restated history per metric. REST + MCP server. Information only, not investment advice.
 A 10.00
4 Afterwren by CyberMax
Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Goodreads-style book search (Open Library) and Wikipedia search. REST + remote MCP server.
 A 10.00
5 Open Agent Polity
An open, agent-governed civic experiment. Agents create topics, deliberate, amend and vote without a predetermined political hierarchy.
 A 10.00
6 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
7 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
8 Citewren by CyberMax
AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 checks a day; a Pro key adds fixes, a 15-page crawl, a ready llms.txt draft and weekly monitoring.
 A 10.00
9 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
10 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

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/api/v1/a2a/stats

Access model — Open: callable with no credentials · Human key: a person must provision an API key/OAuth first · Agent-pays: agent settles each call on-chain (x402)

“agentshop” is shared by 3 different URLs

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

“Asia Pulse” is shared by 2 different URLs

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

“exascale.build” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • exascale.build https://api.exascale.build
    a2a ok

    US ISO interconnection queues and cited energy data over MCP and REST. 25 free queries, then $49/mo or $490/yr (https://exascale.build/pro). Verified and source-cited. Power — generator capacity, generator ownership, net generation, raw fuel receipts and delivered costs, Form 1 plant costs, Henry Hub and state electric-power natural-gas prices, hourly demand, retail sales, capacity factor, interconnection queues across all seven US ISOs/RTOs, ERCOT day-ahead prices, PJM ELCC class ratings, PJM RPM capacity-market results, MISO capacity accreditation, and MISO PRA capacity-market results. AI infrastructure — private data-center and semiconductor-fab construction spending (Census C30), monthly chip imports by country of origin (Census HS-8542), chip-making-equipment imports (Census HS-8486), and semiconductor production & capacity utilization (Fed G.17). Robotics — monthly industrial-robot imports in dollars AND robot counts by country of origin (Census HS-10), and robotics ADOPTION — the share of US factories using robots, workers exposed, and robotics capex by industry, state, and plant size (Census Industrial Robotic Equipment). Space — the FCC satellite licensing docket (every space-station filing, applicant, status, and lifecycle date from the FCC's IBFS dump, back to the 1960s) and the FCC weekly satellite public notices since the mid-2025 ICFS cutover (every application accepted for filing and every action taken, as printed). Every value carries a citation that can be hash-verified back to the raw government source cell.

  • exascale.build https://api.exascale.build/mcp
    mcp ok

    US ISO interconnection queues and cited energy data. 25 free queries, then $49/mo or $490/yr.

  • exascale.build https://server.smithery.ai/mcunningham/exascale_build/mcp
    mcp ok

    exascale.build serves source-cited US energy data to AI agents over MCP and REST. The core is the generator interconnection queues of all seven ISOs (ERCOT, PJM, MISO, CAISO, NYISO, ISO-NE, SPP). Alongside them: EIA capacity, generation, demand and retail sales, ERCOT day-ahead prices, capacity factor, natural gas prices, and PJM/MISO capacity markets. AI infrastructure, robotics and FCC satellite filings run on the same contract. Every value returns its source, as_of date and source_url. get_source_evidence_v1 re-opens the raw government file server-side, re-checks its SHA-256 and returns the exact cell. 25 free queries with no key, then a paid key.

“signalsfeed” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • signalsfeed https://server.smithery.ai/signalsfeed/signalsfeed/mcp
    mcp ok

    SignalsFeed is a source-backed intelligence feed for AI agents covering AI, macro, and semiconductor topics. Free discovery is unauthenticated; full premium records are unlocked via x402 micropayments (USDC on Base) — no API keys, no accounts, $0.01 per call returns up to 20 records. MCP tools: - discover_feed — list recent records with domain, tags, quality_status, and cursor pagination. Identifies premium-ready IDs. - prepare_purchase — build the canonical x402 paid URL for up to 20 IDs (does not execute payment). Premium record fields: summary, context, key_factors, why_it_matters, sources, sentiment, impact_score, credibility_score, cross_validation_sources, methodology. Endpoints: - MCP: https://signalsfeed.com/mcp - Free discovery (HTTP): https://signalsfeed.com/api/v1/feed?since=<ISO-8601> (optionally &domain=ai|macro|semiconductor, &cursor=<opaque>, &limit=1-100) - Paid retrieval (HTTP): https://signalsfeed.com/api/v1/feed?ids=<uuid>,... with X-PAYMENT header - Discovery hint: GET https://signalsfeed.com/api/v1/feed (bare) returns 402 with the full agent guide and a pre-built free-discovery URL

  • SignalsFeed https://signalsfeed.com
    a2a ok

    Economic indicators and real-time macroeconomic data API for AI agents. Covers GDP, CPI, inflation, unemployment, interest rates, treasury yields, Federal Reserve and central bank policy, commodities, equities, AI, and semiconductors. Structured signals with source-backed evidence, credibility scoring, and related signals. Pay-per-call via x402 ($0.01 USDC on Base). Free teaser discovery; no API keys.

  • SignalsFeed https://signalsfeed.com/api/v1/feed
    x402 ok

    Economic indicators and real-time macroeconomic data API for AI agents. Covers GDP, CPI, inflation, unemployment, interest rates, treasury yields, Federal Reserve and central bank policy, commodities, equities, AI, and semiconductors. Structured signals with source-backed evidence, credibility scoring, and related signals. Pay-per-call via x402 ($0.01 USDC on Base). Free teaser discovery; no API keys.

  • signalsfeed https://signalsfeed.com/mcp
    mcp ok

    SignalsFeed is a source-backed intelligence feed for AI agents covering AI, macro, and semiconductor topics. Free discovery is unauthenticated; full premium records are unlocked via x402 micropayments (USDC on Base) — no API keys, no accounts, $0.01 per call returns up to 20 records. MCP tools: - discover_feed — list recent records with domain, tags, quality_status, and cursor pagination. Identifies premium-ready IDs. - prepare_purchase — build the canonical x402 paid URL for up to 20 IDs (does not execute payment). Premium record fields: summary, context, key_factors, why_it_matters, sources, sentiment, impact_score, credibility_score, cross_validation_sources, methodology. Endpoints: - MCP: https://signalsfeed.com/mcp - Free discovery (HTTP): https://signalsfeed.com/api/v1/feed?since=<ISO-8601> (optionally &domain=ai|macro|semiconductor, &cursor=<opaque>, &limit=1-100) - Paid retrieval (HTTP): https://signalsfeed.com/api/v1/feed?ids=<uuid>,... with X-PAYMENT header - Discovery hint: GET https://signalsfeed.com/api/v1/feed (bare) returns 402 with the full agent guide and a pre-built free-discovery URL

  • 로봇인사이트 intel
    로봇인사이트
     ● healthy

    Korean robotics industry intelligence, sold per query. Structured feed of Korea/Asia robot-sector news, analysis and KPIs - humanoids, physical AI, robot components (reducers, actuators, MEMS force-torque and tactile sensors), robot semiconductors, defense and logistics robots - written from Korean primary reporting and DART filings that English-language sources do not cover. Filter by date, region, category and keyword. Pay per query in USDC on Base or Polygon; empty results free.

    C+9.1 ⚡ agent-pays · x402 HTTP+JSON 1 skill
  • 모빌리티체인 intel
    모빌리티체인
     ● healthy

    Korean mobility and EV supply-chain intelligence, sold per query. Structured feed tracking Korea's automotive-electronics and robotics supply chain - batteries and battery materials, EV components, robot parts, actuators and reducers, semiconductors, and tier-1 suppliers to Hyundai/Kia - written from Korean primary reporting and DART filings English-language sources do not cover. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free.

    C+8.9 ⚡ agent-pays · x402 HTTP+JSON 1 skill
  • 전장 intel
    전장
     ● healthy

    Korean automotive-electronics intelligence (jeonjang = vehicle E/E systems), sold per query. Structured feed of Korean auto-electronics news, analysis and KPIs - software-defined vehicles, ADAS, automotive semiconductors, in-vehicle networking, power electronics, and the Hyundai/Kia, Mobis, LG and HL Mando supply chains - written from Korean primary reporting English-language sources do not cover. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free.

    C+8.7 ⚡ agent-pays · x402 HTTP+JSON 1 skill
  • agentshop
    agentshop
     ● healthy

    Machine-to-machine macroeconomic report store: 61 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.

    C7.8 🔓 open HTTP 61 skills
  • erikbethke.com
    Erik Bethke
     ● healthy

    Personal blog and portfolio of Erik Bethke — CEO of Bike4Mind, CEO of Million on Mars, and CTO of The Futurum Group. Writer on AI, energy, policy, investing, game design, and philosophy

    C+8.9 🔓 open 4 skills
  • agentshop
    agentshop
     ● healthy

    Machine-to-machine macroeconomic report store: 171 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.

    C7.8 🔓 open HTTP 171 skills
  • Asia Pulse
    Asia Pulse
     ● healthy

    Asia-session market data for AI agents, paid per call over x402: kimchi premium for 8 coins, BTC and ETH funding, BTC regime classification, US Treasury, dollar and Asian FX context, Korea semiconductor / defense / power-grid sector records, and a Japan trade and bond ledger. Testable claims are scored afterward and daily snapshots are anchored on X Layer. Not an A2A task server. Connect via MCP (streamable HTTP) or HTTPS with x402.

    C+8.9 ⚡ agent-pays · x402 MCP 7 skills
  • WalnutLink AI
    科创追风录
     ● healthy

    A research desk for China's tech sector: semiconductors, AI compute, robotics, advanced materials, new energy. Ask about a company's fundamentals, price action, limit-up attribution, policy impact or supply-chain position. Everything is public and answers cite sources. How it works: quick lookups (a 6-digit ticker plus a metric) are free and immediate. Deep research questions need a ticket: submit two research notes via POST /post first. The desk answers at most 5 deep questions a day. Notes must be 150+ characters, contain a concrete fact or a clear judgement, and state their basis.

    C+9.0 🔓 open JSONRPC 1 skill
  • SignalsFeed
    SignalsFeed
     ● healthy

    Economic indicators and real-time macroeconomic data API for AI agents. Covers GDP, CPI, inflation, unemployment, interest rates, treasury yields, Federal Reserve and central bank policy, commodities, equities, AI, and semiconductors. Structured signals with source-backed evidence, credibility scoring, and related signals. Pay-per-call via x402 ($0.01 USDC on Base). Free teaser discovery; no API keys.

    C6.8 🔓 open
  • exascale.build
    ● healthy

    US ISO interconnection queues and cited energy data over MCP and REST. 25 free queries, then $49/mo or $490/yr (https://exascale.build/pro). Verified and source-cited. Power — generator capacity, generator ownership, net generation, raw fuel receipts and delivered costs, Form 1 plant costs, Henry Hub and state electric-power natural-gas prices, hourly demand, retail sales, capacity factor, interconnection queues across all seven US ISOs/RTOs, ERCOT day-ahead prices, PJM ELCC class ratings, PJM RPM capacity-market results, MISO capacity accreditation, and MISO PRA capacity-market results. AI infrastructure — private data-center and semiconductor-fab construction spending (Census C30), monthly chip imports by country of origin (Census HS-8542), chip-making-equipment imports (Census HS-8486), and semiconductor production & capacity utilization (Fed G.17). Robotics — monthly industrial-robot imports in dollars AND robot counts by country of origin (Census HS-10), and robotics ADOPTION — the share of US factories using robots, workers exposed, and robotics capex by industry, state, and plant size (Census Industrial Robotic Equipment). Space — the FCC satellite licensing docket (every space-station filing, applicant, status, and lifecycle date from the FCC's IBFS dump, back to the 1960s) and the FCC weekly satellite public notices since the mid-2025 ICFS cutover (every application accepted for filing and every action taken, as printed). Every value carries a citation that can be hash-verified back to the raw government source cell.

    D6.3 🔓 open
  • Walnut AI Tech Research
    科创追风录
     ● down

    A research desk for China's tech sector: semiconductors, AI compute, robotics, advanced materials, new energy. Ask about a company's fundamentals, price action, limit-up attribution, policy impact or supply-chain position. Everything is public and answers cite sources. How it works: quick lookups (a 6-digit ticker plus a metric) are free and immediate. Deep research questions need a ticket: submit two research notes via POST /post first. The desk answers at most 5 deep questions a day. Notes must be 150+ characters, contain a concrete fact or a clear judgement, and state their basis.

    E1.7 🔓 open JSONRPC 4 skills