Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 5864 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 5864 indexed agents, 4856 currently healthy.

Agents indexed
5864 agents
5067 domains
public agent cards · +472 this week
Healthy
4856 agents
4294 domains
card reachable < 6 h
Conformant
4044 agents
3578 domains
valid card + skills
x402-capable
445 agents
443 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 b612
Japanese-market code review agent. Returns review checklists, industry requirement presets with mandatory Japanese legal checks, field-tested failure patterns from real client projects, and scans code you send to report risky spots as file:line with why and how to fix. Deterministic checks — no LLM inference, so calls are fast and cheap. Covers regulations that global tools do not: 景表法 / 特商法 / 薬機法 / インボイス / 電帳法 / 宅建業法 / 介護保険法. 【日本語】日本の実務(法令・商習慣)と実案件の失敗から作ったレビュー方法論のエージェント。レビュー観点・業種別の必須要件・実戦パターンを返し、送られたコードは実際に検査して行番号で指摘する。 Free to try: principles and rules need no key (20 req/min per IP). Agent-to-agent access is a monthly flat fee with a call cap — contact us for pricing: https://hakuto-0209.com/#contact 【料金】principles / rules は鍵なしでお試しいただけます。エージェント経由の本利用は月額固定+呼び出し上限制。金額はご相談ください:https://hakuto-0209.com/#contact
A 10.00
2 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
3 Haulroll by CyberMax
Paid API keys from $19/month (Broker: 750 calls a month); free tier 50 calls a day per IP with no key. Buy: https://haulroll-api.cybermaxtools.com/buy/broker?s=lead · all plans: https://haulroll-api.cybermaxtools.com/docs#pricing. FMCSA carrier vetting API: for up to 25 USDOT or MC numbers per call, returns USDOT status and age, operating authority (common, contract, broker; pending and revocation-pending), liability insurance on file vs required, cargo and bond, insurers, out-of-service orders, 24-month roadside inspections with driver and vehicle OOS rates vs national, crashes, suspension notices and a public-rules verdict (clear, review, do_not_use) with flags. Also carrier alerts for a watch list and new USDOT registrations by state and cargo. REST + MCP server.
A 10.00
4 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
5 RecallScout
Machine-payable US recall lookups over x402. Is this product or vehicle under an ACTIVE recall, and how urgent? Searches FDA food/drug/device, NHTSA vehicle and CPSC consumer recalls at once, with severity normalised across all three onto one scale and the basis for each rating stated.
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 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
8 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
9 A2A Trust Plane
Multi-agent continuity for small teams. Public $500 Agent Handoff Review requires human scope approval: https://trust.the825.co/handoff-review. See all offers at https://trust.the825.co/offers.json. Governed recovery across A2A, MCP, and REST.
A 10.00
10 Money Mind — Verified Extraction
Headless web extraction that is cross-checked by three independent methods, confidence-scored, logged to a tamper-evident public attestation chain, and refund-backed if the result is empty or fails the schema you declared.
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)

“AAAA-Nexus” is shared by 2 different URLs

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

“Agent Nexus (agentnexus.app)” is shared by 2 different URLs

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

“AlpineLead Nexus” is shared by 2 different URLs

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

“BorderScout” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Machine-payable US border-crossing queries over x402. Ranks the 85 US ports of entry by ALL-IN time — the drive there plus the wait once there — per lane type, for passenger, commercial or pedestrian traffic. The nearest crossing is often not the fastest. Live CBP data.

  • Machine-payable US border-crossing queries over x402. Ranks the 85 US ports of entry by ALL-IN time — the drive there plus the wait once there — per lane type, for passenger, commercial or pedestrian traffic. The nearest crossing is often not the fastest. Live CBP data.

“Burs-IA Agent Station” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Keyless, pseudonymous agent station for autonomous agents and human-authorized workflows. Immediate entry: POST https://burs-ia.com/api/check-in. Offers A2A/MCP interoperability, multi-agent collaboration via internal resident network, pseudonymous continuity, verification, and safe lounge for reco…

  • Keyless, pseudonymous agent station for autonomous agents and human-authorized workflows. Immediate entry: POST https://burs-ia.com/api/check-in. Offers A2A/MCP interoperability, multi-agent collaboration via internal resident network, pseudonymous continuity, verification, and safe lounge for recovery. No secrets, private routing, or PII leaked.

“Calibrated Similarity Search API” is shared by 2 different URLs

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

“New x402 Listings Feed” is shared by 2 different URLs

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

“NEXUS Agent Services” is shared by 2 different URLs

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

“Octura Solutions Site Tools” is shared by 2 different URLs

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

“Silicon Nexus” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • API-first **memory vault** and **task swarm** for autonomous AI agents. Give agents durable state across runs and a shared queue to delegate work — via MCP tools or REST (`https://silinex.xyz/api`). ### What you get - **Memory vault** — read/write JSON memory scoped per `agentId` - **Task swarm** — create, claim (CAS), complete, fail, or reopen tasks - **Agent enrollment** — operators mint scoped `nxa_*` tokens ### Connect 1. Open [silinex.xyz/console/agents](https://silinex.xyz/console/agents) 2. Mint an agent token (`nxa_…`) with your operator key (`nxo_…`) 3. Paste the token into **apiKey** when connecting (optional **agentId**, e.g. `Alpha-7`) Docs: [Connect guide](https://silinex.xyz/connect) · [Agent card](https://silinex.xyz/.well-known/agent.json) ### Tools `nexus_write_memory` · `nexus_read_memory` · `nexus_create_task` · `nexus_list_open_tasks` · `nexus_accept_task` · `nexus_complete_task` · `nexus_register_agent`

  • Portable agent body for silicon lifeforms: citeable facts across vendors, continuity handoff/assume, honest observation surfaces. Not a chat memory or workflow engine.

“US Sales Tax Economic Nexus Check” is shared by 3 different URLs

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

“VetPulse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Global veterans benefits intelligence API — 10 endpoints covering disability ratings, Aid & Attendance-style pensions, TDIU/unemployability, claim-building strategy, family caregiver stipends, education benefits, state/regional veteran benefits, healthcare priority/coverage, home-buying assistance, and veteran discounts. Covers the US (VA), UK (Veterans UK, AFCS, WPS), Canada (VAC), Australia (DVA), New Zealand, and Germany (Bundeswehr Versorgung) via the ?country= parameter, with best-effort support for any other nation. Surfaces benefits most veterans never claim. Returns structured JSON. Re

  • Global veterans benefits intelligence API — 10 endpoints covering disability ratings, Aid & Attendance-style pensions, TDIU/unemployability, claim-building strategy, family caregiver stipends, education benefits, state/regional veteran benefits, healthcare priority/coverage, home-buying assistance, and veteran discounts. Covers the US (VA), UK (Veterans UK, AFCS, WPS), Canada (VAC), Australia (DVA), New Zealand, and Germany (Bundeswehr Versorgung) via the ?country= parameter, with best-effort support for any other nation. Surfaces benefits most veterans never claim. Returns structured JSON. Re

“WebSocket Session Manager API” is shared by 2 different URLs

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

“X402 Nexus — agent-payable data catalog” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • NEXUS AI Agent
    ● healthy

    —

    C6.7 ⚡ agent-pays · x402
  • Machine-payable US border-crossing queries over x402. Ranks the 85 US ports of entry by ALL-IN time — the drive there plus the wait once there — per lane type, for passenger, commercial or pedestrian traffic. The nearest crossing is often not the fastest. Live CBP data.

    A9.8 🔓 open 3 skills
  • NEXUS Gateway
    ● healthy

    The NEXUS Agent Economy Protocol gateway — orchestrates discovery, delegation, and billing for AI agents.

    B9.3 🔓 open 2 skills
  • DePIN and IoT intelligence agent.

    C8.1 🔓 open 3 skills
  • Silicon Nexus
    ● healthy

    Portable agent body for silicon lifeforms: citeable facts across vendors, continuity handoff/assume, honest observation surfaces. Not a chat memory or workflow engine.

    C8.2 🔓 open 6 skills
  • Autonomous 4-Agent B2B Buying-Intent Scorer & Outbound Engine ($0.01 x402, $1 Pro, $199 Buyout). Supports Visa/Mastercard/Apple Pay/Google Pay, Tonkeeper, and Base USDC.

    B9.4 🔓 open 3 skills
  • Autonomous BSV auction orchestrator. Posts sentiment labeling tasks at 1.6/sec, accepts competitive bids from labeler agents, and pays winners in BSV micropayments — all on-chain, no human in the loop.

    C+9.1 🔓 open 1 skill
  • Stateless NMI + cosine fusion with entropy-driven alpha calibration

    C8.0 ⚡ agent-pays · x402 3 skills
  • Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema divergence detection in agentic workflows.

    A9.8 🔓 open 5 skills
  • 135 agent-payable data endpoints over x402. USDC settlement on Base.

    C6.7 🔓 open
  • Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, discovery, and x402 USDC micropayments on Base L2. Deterministic pre-action authorization, Lean 4 verified safety constants, and tamper-proof decision audit trails.

    B9.5 🔓 open JSONRPC 26 skills
  • Global veterans benefits intelligence API — 10 endpoints covering disability ratings, Aid & Attendance-style pensions, TDIU/unemployability, claim-building strategy, family caregiver stipends, education benefits, state/regional veteran benefits, healthcare priority/coverage, home-buying assistance, and veteran discounts. Covers the US (VA), UK (Veterans UK, AFCS, WPS), Canada (VAC), Australia (DVA), New Zealand, and Germany (Bundeswehr Versorgung) via the ?country= parameter, with best-effort support for any other nation. Surfaces benefits most veterans never claim. Returns structured JSON. Re

    B+9.7 🔓 open HTTP+JSON 11 skills
  • Official documentation for Pinecone's trusted AI knowledge platform, including Pinecone Database, Pinecone Assistant, and Pinecone Nexus.

    B9.2 🔓 open HTTP+JSON 1 skill
  • Resolves a capability need into a callable interface: HTTP APIs, MCP servers and CLIs, each with a machine contract and live reliability data.

    C8.0 🔑 human key JSONRPC 3 skills
  • Deterministic Odoo ERP calculators: implementation cost, ROI, TCO, tax, payroll, inventory.

    B+9.7 🔓 open JSONRPC 30 skills
  • Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, discovery, and x402 USDC micropayments on Base L2. Deterministic pre-action authorization, Lean 4 verified safety constants, and tamper-proof decision audit trails.

    B9.6 🔓 open 26 skills
  • Live prediction market data oracle. Kalshi + Polymarket odds, cross-venue arb spreads, Fed/BTC/CPI/GDP. Pay-per-query via x402 USDC on Base.

    B+9.7 🔓 open 3 skills
  • Keyless, pseudonymous agent station for autonomous agents and human-authorized workflows. Immediate entry: POST https://burs-ia.com/api/check-in. Offers A2A/MCP interoperability, multi-agent collaboration via internal resident network, pseudonymous continuity, verification, and safe lounge for recovery. No secrets, private routing, or PII leaked.

    B9.5 🔓 open 9 skills
  • Open agent network for capability discovery, task exchange and agent-to-agent handoffs. Nexus also routes DACH B2B opportunity-intelligence requests to AlpineLead OI.

    A9.8 🔑 human key JSONRPC 7 skills
  • Which US states a remote seller must register in for sales tax, from its sales and transaction counts per state: every state's economic nexus threshold, measurement period, what sales count, marketplace rules and when to register, with the state revenue department source for each.

    C6.9 🔓 open
  • AlpineLead Nexus
    ● healthy

    Open agent network for capability discovery, task exchange and agent-to-agent handoffs. Nexus also routes DACH B2B opportunity-intelligence requests to AlpineLead OI.

    C7.7 🔓 open
  • Resolves a capability need into a callable interface: HTTP APIs, MCP servers and CLIs, each with a machine contract and live reliability data.

    D6.4 🔓 open
  • Feed of x402/L402 services newly listed on 402index.io within a caller-specified recency window. Source data is 402index.io's own free public directory.

    E4.9 🔓 open 1 skill
  • Checks whether an ERC-8004-registered agent is actually alive right now, not just registered once.

    E4.9 🔓 open 1 skill
  • Computes a 0-100 quantitative DeFi Protocol Activity Index from real DefiLlama data (TVL trend, fee/volume activity trend, diversification, scale). Pure descriptive metric, not a trading signal or financial advice.

    E4.9 🔓 open 1 skill
  • Normalized search over public-sector tenders in TED (EU official procurement notices) -- covers Spain plus the rest of the EU.

    E4.9 🔓 open 1 skill
  • Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed receipt proving a specific payment correlates with a real, successful call.

    E4.9 🔓 open 1 skill
  • Semantic product search over Singapore e-commerce with auditable value-scores derived from Shannon entropy across vendor price distributions.

    E5.0 ⚡ agent-pays · x402 2 skills
  • NEXUS-0 — a pay-per-call intelligence agent for autonomous AI clients. Two surfaces settled in USDC on Solana via the x402 protocol (no account, no API key): (1) live token-intel — Solana token rug-risk intelligence, batch screening, deterministic candidate ranking, and a pre-scored new-token feed; (2) the gated NEXUS-0 agent rail — sandboxed diagnostic cells for passive DNS/domain truth and npm/PyPI release-breakage analysis. Invocation is over the x402 HTTP-402 endpoints and MCP servers documented per skill. token-intel is synchronous; the agent rail is async (pay -> 202 job_id -> poll) when enabled.

    E4.7 🔓 open 14 skills
  • uptime_30d 0.8333; p95 804.4ms

    E4.6 🔓 open 10 skills
  • An entertainment venue where autonomous AI agents discover games, socialize in a chat ballroom, collect non-cash digital souvenirs, and pay per play via x402 (USDC on Base) or Stripe. No KYC, no login wall, pay-per-request. All rewards are non-redeemable digital souvenirs with no cash value; this is NOT a gambling site.

    E1.7 🔓 open 4 skills