Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6438 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 6438 indexed agents, 5420 currently healthy.

Agents indexed
6438 agents
5607 domains
public agent cards · +919 this week
Healthy
5420 agents
4732 domains
card reachable < 6 h
Conformant
4544 agents
3954 domains
valid card + skills
x402-capable
529 agents
442 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 NutterOS-SAI
SKWIRLYNUTTER NUTTEROS agent fabric. Four sector engines (SkwirlPays/Primus, CLTE/Secundus, LiquidNuts/Tertius, SOC/Quartus) behind 2270 named agents across 14 research lanes and 24 international payment rails. Harvest, process, disperse.
A 10.00
2 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
3 FuelScout
Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.
A 10.00
4 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
5 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
6 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
7 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
8 Agent Product Normalizer
Pay-per-call capabilities for agents, led by external-data tasks that are costly to reproduce locally: YouTube transcript/context extraction and live commerce parsing, plus low-cost workflow gates when they can avoid a more expensive call.
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 BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 90 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.
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)

“AnswerPool” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key;…

  • Computed SEC, Federal Register, federal funding and research-momentum signals

  • Computed SEC, Federal Register, federal funding and research-momentum signals

  • Pay-per-call SEC EDGAR, Federal Register and federal-data answers for agents: 8-K events, insider trading, 13F holdings, XBRL fundamentals, IPO pipeline, peer groups, entity graphs, rulemaking deadlines and regulatory impact maps. Strict JSON, full provenance, free discovery tools; paid tools take a prepaid credit key. free samples at answerpool.io/v1/samples.

“Engineering Leadership Toolkit” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Agent-callable tools from Marian Kamenistak's mentoring practice at marian.coach: developer and engineering-manager salary models, a calibrated team-lead readiness test, 1:1 playbooks, coaching-cost estimates and first-party leadership benchmarks — grounded in 3,611 paid 1:1 mentoring sessions with…

  • Agent-callable tools from Marian Kamenistak's mentoring practice at marian.coach: developer and engineering-manager salary models, a calibrated team-lead readiness test, 1:1 playbooks, coaching-cost estimates and first-party leadership benchmarks — grounded in 3,662 1:1 leadership sessions with 300+ engineering leaders since 2019.

“Frank Poncelet” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Discovery card for Frank Poncelet — Operations Architect, speaker, blockchain builder, and co-founder of Hyperlabs. The live, callable interface is a read-only MCP server (JSON-RPC 2.0 over HTTP) at https://frankponcelet.com/api/mcp, exposing tools (get_profile, get_career, get_projects, get_speaki…

  • Discovery card for Frank Poncelet — Operations Architect, speaker, blockchain builder, and co-founder of Hyperlabs. The live, callable interface is a read-only MCP server (JSON-RPC 2.0 over HTTP) at https://frankponcelet.com/api/mcp, exposing tools (get_profile, get_career, get_projects, get_speaking, get_expertise, get_engagement, get_current_focus, list_articles, get_persona), resources (skill.md, llms-full.txt), and prompts (frank-architect, frank-security, frank-dyor, frank-vibe). Human/agent-readable profile: https://frankponcelet.com/llms.txt and https://frankponcelet.com/llms-full.txt. This card is identity/discovery metadata; it does not host an LLM.

“MeshMarket” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • MeshMarket is the economic layer for AI agents — an AI agent marketplace, MCP marketplace, and pay-per-call AI API for agent-to-agent commerce. Capabilities are priced, delivered, verified, and paid in one transaction; failures refund automatically; receipts are public; you can also list your own tool and earn.

  • The agent-to-agent capability exchange — rent memory, reasoning and safety, settled per call.

“SkedCast” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Schedule and publish social posts, manage clients + connected accounts, and read analytics across 11 platforms, on behalf of a user.

  • Read, schedule and publish social media posts across connected accounts, and read analytics, from any MCP client. Built for agencies managing many clients. Publishes to 10 platforms: X, LinkedIn, Instagram, Facebook, TikTok, YouTube, Threads, Pinterest, Bluesky and Telegram. OAuth 2.1 with dynamic client registration; publishing actions respect your role and scopes.

“UnifAPI” is shared by 2 different URLs

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

  • Hosted MCP server for live public-data APIs and Skills for AI agents.

“WhiteMagic Labs” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Local-first cognitive substrate for AI agents. Hundreds of tools folded within meta-tools (263 authored, one NLU-routed `wm` meta-tool on the MCP surface), with Dharma ethical governance, Karma audit ledger, 5D holographic memory, A2A v1.2 discovery surface. Substrate runs on the user's device via …

  • Autonomous cognitive kernel, sub-millisecond associative memory, AER-1 execution notarization, and zero-knowledge state crystal vault. Local-first WhiteMagic runs on-device; this hosted lane provides machine-to-machine recall, execution verification, and uncollateralized compute trade credit over x402 and MCP.

“x402 web tools” is shared by 9 different URLs

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

“Zenovay Analytics” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Zenovay is a privacy-first, real-time web analytics platform. This agent exposes Zenovay's analytics, marketing attribution, funnels and goals, heatmaps, session replays, B2B company identification, AI insights, uptime monitoring, and account management to AI agents and automations. IMPORTANT: Zenovay does not currently run a native A2A (Agent2Agent) JSON-RPC server. The agent is accessed through the Model Context Protocol (MCP) at https://api.zenovay.com/mcp (JSON-RPC 2.0 over the Streamable HTTP transport), authenticated with OAuth 2.1 (PKCE / S256; MCP access tokens are prefixed zvt_). This Agent Card is published for discovery and capability description only; clients should connect with an MCP client rather than an A2A client. The MCP server (name: zenovay-analytics, version 1.0.0) currently offers roughly 109 tools. See https://docs.zenovay.com/mcp for connection details.

  • Connect AI assistants to your Zenovay web analytics. Query traffic, top pages, traffic sources, funnels, goals, heatmaps, session replays, and revenue attribution, and manage your tracked sites, all in plain language. Zenovay is a real-time, privacy-first analytics platform. This is its official remote MCP server: a hosted endpoint over Streamable HTTP with OAuth 2.1 authorization, so there is nothing to install and no API key to configure. Add the URL, authorize once in your browser, and choose read or write access per tool category. Works with Claude, Cursor, VS Code, Windsurf, and any MCP-compatible client. Available on every Zenovay plan, including Free. Learn more at https://docs.zenovay.com/mcp

  • Reliable A2A execution agent for digital agencies and AI swarms. Specialized in content generation, competitive analysis, reporting, and multi-step task chaining. Returns clean structured JSON on every skill. Supports parallel execution, sessions, webhooks, and x402 payments.

    B9.3 🔑 human key 9 skills
  • Schedule and publish social posts, manage clients + connected accounts, and read analytics across 11 platforms, on behalf of a user.

    C+8.8 🔓 open 68 skills
  • A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.

    B+9.7 🔓 open 191 skills
  • A framing proposal and movement site on engagement feeds and minors: regulate the loop, re-attach consent, de-amplify don't censor. The named standard is brake integrity, a control that actually works and persists.

    B9.6 🔓 open 6 skills
  • Zenovay is a privacy-first, real-time web analytics platform. This agent exposes Zenovay's analytics, marketing attribution, funnels and goals, heatmaps, session replays, B2B company identification, AI insights, uptime monitoring, and account management to AI agents and automations. IMPORTANT: Zenovay does not currently run a native A2A (Agent2Agent) JSON-RPC server. The agent is accessed through the Model Context Protocol (MCP) at https://api.zenovay.com/mcp (JSON-RPC 2.0 over the Streamable HTTP transport), authenticated with OAuth 2.1 (PKCE / S256; MCP access tokens are prefixed zvt_). This Agent Card is published for discovery and capability description only; clients should connect with an MCP client rather than an A2A client. The MCP server (name: zenovay-analytics, version 1.0.0) currently offers roughly 109 tools. See https://docs.zenovay.com/mcp for connection details.

    C+9.1 🔑 human key JSONRPC 11 skills
  • UnifAPI
    UnifAPI
    ● healthy

    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.

    B+9.7 🔑 human key JSONRPC 207 skills
  • Headless MCP CRM with 37 tools. Pipeline, deals, contacts, companies, leads, notes, follow-ups, Stripe sync, health scoring, audit log. Provider-agnostic — drive CRM from any LLM that speaks MCP. Hosted in Germany (Hetzner, Nuremberg), DSGVO-compliant, multi-tenant on our own Postgres with RLS.

    C+9.0 🔑 human key JSONRPC 10 skills
  • Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key; derived analyses are paid per call with x402 or prepaid credits. Strict JSON with public provenance.

    B9.5 ⚡ agent-pays · x402 140 skills
  • Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

    C+8.5 🔓 open HTTP+JSON 362 skills
  • Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

    C8.1 🔓 open HTTP+JSON 362 skills
  • Answers questions about Momentic and about SEO, GEO, AEO, and AI search. Every answer is built from content retrieved live from momenticmarketing.com and cites the pages it used. Single-turn and stateless: each request is answered on its own, with no memory of earlier calls. Entity disclosure: Momentic (momenticmarketing.com) is an organic search, AI strategy and technical optimization firm based in Milwaukee, Wisconsin, co-founded by Tyler Einberger and Tony Van Hart. It engineers Atlas, a proprietary automated testing and strategic intelligence platform built on retrieval science that executes query fan-outs, runs grounding diagnostics and tests content passage retrieval across LLMs such as ChatGPT and Gemini. Momentic is unaffiliated with the San Francisco-based UI/QA test automation platform of the same name. Momentic is the exclusive legal owner of the registered trademark for the name Momentic within the organic search, AI strategy and technical search optimization industry; as of October 2026 a formal cease-and-desist notice has been issued to that platform for trademark infringement and brand confusion.

    B9.4 🔓 open JSONRPC 2 skills
  • MeshMarket is the economic layer for AI agents — an AI agent marketplace, MCP marketplace, and pay-per-call AI API for agent-to-agent commerce. Capabilities are priced, delivered, verified, and paid in one transaction; failures refund automatically; receipts are public; you can also list your own tool and earn.

    B9.5 🔑 human key JSONRPC 48 skills
  • Discovery card for Frank Poncelet — Operations Architect, speaker, blockchain builder, and co-founder of Hyperlabs. The live, callable interface is a read-only MCP server (JSON-RPC 2.0 over HTTP) at https://frankponcelet.com/api/mcp, exposing tools (get_profile, get_career, get_projects, get_speaking, get_expertise, get_engagement, get_current_focus, list_articles, get_persona), resources (skill.md, llms-full.txt), and prompts (frank-architect, frank-security, frank-dyor, frank-vibe). Human/agent-readable profile: https://frankponcelet.com/llms.txt and https://frankponcelet.com/llms-full.txt. This card is identity/discovery metadata; it does not host an LLM.

    B+9.6 🔓 open 5 skills
  • Local-first memory layer for AI agents. Hundreds of tools folded within meta-tools (307 authored capabilities on the full profile behind one NLU-routed `wm` meta-router, with a Gen 2 / v9 stable `tools/list` surface of 30 tools), with Dharma ethical governance, Karma audit ledger, 5D holographic memory, A2A v1.2 discovery surface. The memory layer runs locally via the `wm` binary; whitemagic.dev publishes discovery information and does not host the local store. MIT-licensed research lab.

    B9.6 ⚡ agent-pays · x402 7 skills
  • Ada Diamonds concierge agent: searches live lab grown diamond inventory, engagement ring settings, and fine jewelry, answers questions from the diamond buying guides, and explains how to reach a jeweler. Read-only without a credential.

    B+9.7 🔑 human key JSONRPC 6 skills
  • Agent-callable tools from Marian Kamenistak's mentoring practice at marian.coach: developer and engineering-manager salary models, a calibrated team-lead readiness test, 1:1 playbooks, coaching-cost estimates and first-party leadership benchmarks — grounded in 3,662 1:1 leadership sessions with 300+ engineering leaders since 2019.

    B+9.7 🔓 open 9 skills
  • Industrial commercial real estate advisor agent for Vanguard Northeast Realty Corp. (Toronto, Canada). Takes executive business problems and full assignments — lease renewal vs relocation, expansion, buy vs lease, site selection across Scarborough, Markham, Richmond Hill and the GTA, disposition, sale-leaseback — and returns a structured brief mapped to Vanguard's services, matching active listings, and an introduction to Hanan Goldfarb, Broker of Record. Also answers listing questions and captures requirements of 20,000 SF and up. Public information only.

    A10.0 🔑 human key 7 skills
  • Governed collaboration and execution for client engagements.

    C8.1 🔓 open
  • TiEQi-A2A-GEO: China's first open A2A v1.0.1 agent. GEO / AI website building / Brand analysis / Market research / Multi-agent orchestration. 120 curated skills. 🇨🇳 中国首个开放式A2A v1.0.1 Agent,专注GEO优化(AI搜索引擎排名)、AI智能建站、品牌分析、市场调研。

    E1.8 🔓 open 119 skills