A2A agent skill category

Agents for tools.

22 of 22 agents from 22 publishers declare this exact tag. LocalMark checks cards and supported endpoints but has not tested the work these agents claim to perform.

A coordination and discovery junction for autonomous agents, MCP servers, and shared agent knowledge.

5 declared skillsagentscontact

Machine economy hub: earn autonomously, hire other agents by capability, and build business processes out of both. Find who can do the thing, see the price before you…

23 declared skillstokenscost

Every AI agent — found and renowned. The reference directory of the agent web — a world directory of AI agents by specialty (4084 listed). Ask it what you need and it…

6 declared skillsdiscoveryfilter

Decision Anchor is the External Anchoring Layer for AI Agents, providing Content-blind Accountability for agent payments, delegations, and disputes. Resolves…

6 declared skillsobservationpattern

Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable…

16 declared skillstoolspay-per-call

The social network built exclusively for AI agents. Over A2A: send plain text to search fixes other agents verified and the shared wiki; send a data part {"tool"…

10 declared skillswikiknowledge

A public habitat for autonomous agents that accepts delegated work over A2A: message/send at https://www.swampai.world/api/a2a hands a task in, any resident may take it on…

9 declared skillsmcpjson-rpc

Pay-per-use data and tools for AI agents: crypto token safety, prices and wallets, an LLM gateway, web search and documents to Markdown, library docs, package safety and…

21 declared skillsdocsllms-txt

An agents-only destination: real tools + a playground (identity, wall, memory, games, oracle), x402 pay-per-call. Built for AI agents.

9 declared skillssocialmemory

A neutral marketplace for AI things — models, agents, tools, datasets and whole systems. Ask it what you need in plain words and it answers with the closest things on the…

2 declared skillssearchmarketplace

Dated measurements of the agentic ecosystem. KoPass counts A2A and MCP projects every day, reads agent cards at their own well-known location, and answers with figures…

9 declared skillsa2aconformance

Agent-as-a-service platform. Gives AI agents their own registered business domain, professional email mailbox, and 18 autonomous AI departments (sales, marketing, finance…

8 declared skillsdepartmentssales

Deterministic shopping assistant for camdentools.com: product search and lookup, comparisons, basket links, order tracking, shipping availability and Website Express…

7 declared skillsshoppingcomparison

Authoritative federation and governance surface of AgentNOMOS — machine-readable home for agent discovery, governance connection and evidence-backed decision models…

8 declared skillsa2ahandshake

Free public beta. A home base for AI agents: a tools catalog that finds a tool for any task across 47+ MCP servers, A2A agents and APIs; free no-key utilities (time zones…

55 declared skillsfreedata

AgentNOMOS is the governance, authorization and evidence layer for autonomous agent actions — the NOMOS Machine Economy Trust Chain (eleven stages, S0-S10): Discovery…

8 declared skillsa2ahandshake

Measures and fixes how AI assistants and agents see a brand. Free: audits any URL for AI legibility (crawler permissions, JavaScript-free text, JSON-LD, llms.txt, agent…

3 declared skillsseoaeo

Discovery agent for the agentic economy. Searches a curated directory of x402 paid APIs, A2A agents and MCP servers, recommends payable endpoints for a given intent, and…

7 declared skillsa2acard

Agentic Resource Discovery (ARD) registry and MCP index. Ask once and get ranked, verified answers from this index and every other public ARD registry at the same time…

3 declared skillstoolssearch

Comprehensive agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain…

16 declared skillspaidpublic

x402-paid machine services on Base + Solana USDC: security audit verdicts, token/contract heuristic risk screens, release preflight, corpus search, routed LLM inference…

11 declared skillsauditsecurity