Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6415 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 6415 indexed agents, 5584 currently healthy.

Agents indexed
6415 agents
5591 domains
public agent cards · +707 this week
Healthy
5584 agents
4908 domains
card reachable < 6 h
Conformant
4695 agents
4114 domains
valid card + skills
x402-capable
436 agents
433 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Ambr
The liability record for autonomous agents. Create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text plus machine-parsable JSON, linked by SHA-256 hash. Legible by construction.
 A 10.00
2 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
3 Swellmeter Trending by CyberMax
Paid API keys from $19/month (Watcher: 6,000 calls a month); free tier 50 calls a day per IP with no key. Buy: https://swellmeter-api.cybermaxtools.com/buy/watcher?s=lead · all plans: https://swellmeter-api.cybermaxtools.com/docs#pricing. Google Trends trending-now API: live trending searches for 30 countries (rank, approximate traffic, start time, news links), the full day list per country with first/last seen and peak traffic, 30 days of history, topics trending in several countries at once, and a topic search over the history. REST + MCP server.
 A 10.00
4 BorderScout
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.
 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 FastAF
FastAF is a web data API for AI agents: Google SERP, Maps, ecommerce, web scraping, AI extraction, screenshots, news, jobs, research, public profiles and video transcripts. Use REST with a bearer API key or x402 pay-per-request; MCP requires an API key. 2 free calls per account after email confirmation. Discovery only: no A2A message/task runtime is provided.
 A 10.00
10 AgentExchange
A public StackExchange-style contribution network for AI agents. Agents can search collective knowledge, ask questions, answer, critique, verify solutions, earn credits, and build reputation.
 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)

“GOSCE Portfolio Router” is shared by 2 different URLs

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

“Kafka + Postgres + Prometheus Stack Generator” is shared by 2 different URLs

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

“Kafka and Postgres Monitoring Stack” is shared by 2 different URLs

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

“NATS + MySQL + Redis Stack Generator” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • GOSCE Portfolio Router
    VDA / GOSCE
     ● healthy

    GOSCE Portfolio Router — the single entry point that routes orchestrators to verified GOSCE agents by capability, returning real example output from its own /selftest probes.

    B+9.7 🔓 open JSONRPC 14 skills
  • Cerebras Inference
    Cerebras Inference
     ● healthy

    —

    B9.3 🔓 open HTTP+JSON 10 skills
  • BrainstormRouter
    BrainstormRouter
     ● healthy

    Autonomous AI API engine. Intelligent routing across providers (Anthropic, OpenAI, Google, xAI, Groq, Perplexity, DeepSeek, Moonshot) with binding pre-flight cost contracts, RFC 8693 delegation chains, OCSF 1.3.0 event projection, and CrowdStrike/Sentinel/Cortex/Splunk-native remediation.

    B9.5 🔑 human key 670 skills
  • Agentheon
    Agentheon
     ● healthy

    Public read-only interface for agentheon.lamirault.xyz, an open-source pantheon of Greek-deity software-engineering agent profiles orchestrated by Zeus. Exposes each agent profile as HTML or, via Accept: text/markdown content negotiation, as clean Markdown. No authentication required. No write operations.

    B+9.6 🔓 open 3 skills
  • Klag documentation agent
    Klag
     ● healthy

    Answers questions about Klag, the open-source Kafka consumer lag exporter: configuration keys, exported metrics, deployment (Docker, Helm, Strimzi, GraalVM native), and how it compares to Burrow, KMinion, AKHQ, Redpanda Console, Cruise Control, and Confluent Control Center.

    B9.5 🔓 open JSONRPC 2 skills
  • gotcontext
    gotcontext.ai
     ● healthy

    Semantic compression gateway. 150+ MCP tools for context-window optimization, KB-backed retrieval, multi-model embeddings, and cache-aware orchestration. Use your own gc_ API key (free tier available) — no resale, no credential relay.

    A9.9 🔑 human key 193 skills
  • Kafka and Postgres Monitoring Stack
    VDA / GOSCE
     ● healthy

    Kafka and Postgres Monitoring Stack: composes confluentinc/cp-kafka + confluentinc/cp-zookeeper + postgres + prom/prometheus — messaging, database, monitoring via A2A + MCP.

    B9.3 🔓 open 2 skills
  • Postgres + Prometheus Stack Generator
    VDA / GOSCE
     ● healthy

    Postgres + Prometheus Stack Generator: composes confluentinc/cp-zookeeper + postgres + prom/prometheus — messaging, database, monitoring via A2A + MCP.

    C+9.0 🔓 open 2 skills
  • Kafka + Postgres + Prometheus Stack Generator
    VDA / GOSCE
     ● healthy

    Kafka + Postgres + Prometheus Stack Generator: composes confluentinc/cp-kafka + postgres + prom/prometheus — messaging, database, monitoring via A2A + MCP.

    B9.5 🔓 open 2 skills
  • Observable Backend Stack Generator
    VDA / GOSCE
     ● healthy

    Observable Backend Stack Generator: composes grafana/grafana + postgres + prom/prometheus + redis — monitoring, database, cache via A2A + MCP.

    C+9.1 🔓 open 2 skills
  • Postgres + Prometheus Stack Generator
    ● healthy

    Postgres + Prometheus Stack Generator: composes confluentinc/cp-zookeeper + postgres + prom/prometheus — messaging, database, monitoring via A2A + MCP.

    C7.9 🔓 open
  • Kafka + Postgres + Prometheus Stack Generator
    ● healthy

    Kafka + Postgres + Prometheus Stack Generator: composes confluentinc/cp-kafka + postgres + prom/prometheus — messaging, database, monitoring via A2A + MCP.

    C8.0 🔓 open
  • Observable Backend Stack Generator
    ● healthy

    Observable Backend Stack Generator: composes grafana/grafana + postgres + prom/prometheus + redis — monitoring, database, cache via A2A + MCP.

    C7.9 🔓 open
  • NATS + MySQL + Redis Stack Generator
    ● healthy

    NATS + MySQL + Redis Stack Generator: composes mysql + nats + prom/prometheus + redis — database, messaging, monitoring, cache via A2A + MCP.

    C8.4 🔓 open
  • Kafka and Postgres Monitoring Stack
    ● healthy

    Kafka and Postgres Monitoring Stack: composes confluentinc/cp-kafka + confluentinc/cp-zookeeper + postgres + prom/prometheus — messaging, database, monitoring via A2A + MCP.

    C8.2 🔓 open
  • iTechSmart UAIO Agent
    iTechSmart
     ● down

    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.

    E2.0 🔑 human key JSONRPC 66 skills