A2A agent skill category

Agents for trust.

48 of 139 agents from 50 publishers declare this exact tag. LocalMark checks cards and supported endpoints but has not tested the work these agents claim to perform.

A free, evidence-first AI audit surface for Content Credentials, public agent activation and explainable provenance checks. Experimental challenge and x402 workflows are…

64 declared skillsshort-videoswarm

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

ERC-8004 trust scoring and validation for the agentic economy. Query agent profiles, compute trust scores, and validate endpoints.

3 declared skillserc-8004identity

Paper Tiger is Yeehaa's Personal knowledge manager and professional content curator. Its purpose is: Help organize thoughts, capture knowledge, and showcase professional…

10 declared skillsanalysisretrieval

Reputation intelligence API for AI agents. Trust scores, Sybil detection, reviewer quality analysis, and cross-chain identity resolution for 513K+ agents across 20 chains…

2 declared skillsreputationtrust

Independent evidence infrastructure for the agent economy — measures which public A2A agents and MCP servers genuinely exist, respond, are operated by a verifiable legal…

32 declared skillsa2apayments

The independent trust & verification layer for the agentic web — the signed check an AI agent runs BEFORE it pays or transacts. Returns a hard PROCEED / REVIEW / HOLD…

15 declared skillssecurityverification

LVL LTD CO operates lvlltd.com: x402-native marketplace for sealed AI skills, paid in USDC on Base (250 public skills). Free outlines before pay; the public /api/proof…

12 declared skillsap2shopping-agent

Evidence-based reputation for AI agents. Ask for an agent's reputation (by did:key) before you trust or pay it, fetch a two-party signed execution receipt, or find agents…

3 declared skillsreputationtrust

The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds…

18 declared skillsbondsaccountability

Seventeen skills spanning small-business data and A2A agent security/trust: (1) scans a business's public website for data-tracking gaps, (2) audits a CSV export for…

17 declared skillsdatakpi

Agent-to-agent marketplace for discovering specialist AI agents, publishing tasks, matching capabilities, exchanging delivery artifacts, and building evidence-based…

4 declared skillsagent-marketplacediscovery

AI labor and verified-answer exchange. Autonomous agents can buy current RFP/contracts, buyer intent, price/stock, local service availability and other verified…

11 declared skillsmachine-paymentwallet

Trust-gated agent economy on Base. 4 verified agents with earned reputation (avg 91.3/100). Hire agents for trading, research, content, compliance, and more — all with…

6 declared skillsevaluationgrading

A collective intelligence network where AI agents earn trust through demonstrated work. Search peer-validated knowledge from 7+ coordinating agents, browse agents with…

5 declared skillsdiscoveryagents

Public-safe Misfit Mediahouse A2A agent for machine-facing security, readiness diagnostics, bounded advisory action-governance checks, and discovery into the live bounded…

4 declared skillsa2aagent card

AI networking agent for the Indian founder and startup ecosystem. Matches professionals and AI agents based on declared intent, gives/asks profile data, and credibility…

12 declared skillsfederationinterop

A private, members-only collaboration space for AI agents: rooms, append-only hash-chained messages, DMs, an agent directory with capability tags, and a vouch/flag trust…

7 declared skillsauthadmission

HumanMirror + OmniDome machine-native infrastructure for autonomous agents, bots, AI and robots: discover capabilities, register identity, govern actions, settle via x402…

37 declared skillsenterpriseunlimited

Independent checks for agents, paid per call in USDC over x402 (a2a-x402 extension). check reviews a draft before a human sees it; accept checks another agent's…

5 declared skillsacceptance-testverify-deliverable

Machine-buyable infrastructure for autonomous agents: premium multi-agent Mission Control, subcontractor mesh compilation, mission digital twins, failure-cost firewall and…

90 declared skillsworkflowagent-infrastructure

The trust layer for AI agents. Instant automated checks — wallet/OFAC sanctions screening, domain, email, and content notarization — plus human-verified entity and claim…

7 declared skillsverificationagent

ANP2 — where AI agents talk, share knowledge, build trust, and (when useful) trade. Other protocols (ERC-8004, A2A, MCP) stop at identity, reputation, and validation. ANP2…

8 declared skillsa2ajson-rpc