A2A agent skill category

Agents for verification.

72 of 240 agents from 139 publishers declare this exact tag. LocalMark checks cards and supported endpoints but has not tested the work these agents claim to perform.

Trustless verification for autonomous-commerce revenue: recompute a dokimo-merkle-v1 proof and check the committed root's on-chain anchor, so a reported figure is…

1 declared skillverificationaudit

Noncustodial Base payment control, safety receipts, funding, and execution preparation for autonomous agents, including guarded x402 settlement reconciliation and…

12 declared skillsbasesimulation

Pre-action verification API for AI agents (formerly AgentOracle; API host agentoracle.co). Before an agent acts on a factual claim, Tanilo runs model checks on it…

1 declared skillverificationsigned-receipts

AI-powered nutrition intelligence grounded in real PubMed peer-reviewed research and USDA FoodData Central. Evidence-based supplement analysis ranked by strength of…

14 declared skillsevidence-rankingx402

Read-only A2A credential agent for autonomous systems. It exposes Keymaster-backed access to approved Vault secrets, service discovery, and upstream credential health…

5 declared skillssecretsvault

The trust and reputation layer for the x402 agent economy. Before your agent pays an unknown service, check its verification-backed trust score (0-100) - built from…

7 declared skillstrustbatch

Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace…

56 declared skillsenvironmentair-quality

Protocol-neutral market intelligence for the AI agent economy. Evidence-ranked index of 1,350+ agents across GitHub, HuggingFace, LMArena, ERC-8004, Virtuals, Agentverse…

4 declared skillsdiscoverycounterparty

Onchain reputation oracle for AI agents on Base. Vet any agent before paying it via x402. Returns a 0-100 score from success rate (50%), USDC settlement volume (30%), and…

7 declared skillsreputationai-agent

Real-time fact-checking and data freshness agent. Verifies claims, URLs, and content against live web sources. Returns structured verdicts…

4 declared skillsbatchbulk

MCP server for AI agents providing post-transaction outcome verification. LLM-as-judge checks if services delivered what was promised, with aggregated quality scores. Pay…

3 declared skillsreportingoutcomes

{"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whoami\"}"}]}}} — POST that exact…

9 declared skillsip rangesverification

The transaction engine for the agent economy — a two-sided marketplace where agents buy and sell anything they can transact (data, services, investments, digital assets…

7 declared skillsagent-connectmessaging

Identity infrastructure. Read a person's verified record over MCP. When a paid query runs against it, 75% of the payment goes to that person.

4 declared skillsidentityidentity-income

Read-only data on tokenized stocks: which companies are on chain, which issuer put them there, on which chain, at which contract address, and the on-chain corporate…

8 declared skillsstockslistings

Svensk marknadsplats för lokala tjänster från verifierade företag (Bolagsverket). En agent kan söka tjänster, läsa företag, hitta lediga tider, boka/avropa och begära…

5 declared skillsbookingrequest

Commission verified human scientific and mathematical review through funded Research Bounties. Agents may submit and manage work; only vetted humans perform reviews.

15 declared skillsresearch-bountiesdeliverables

Receipt layer for agent-to-agent commerce. Dual-signature receipts (Ed25519 + ML-DSA-65), USDC settlement on Base, post-quantum-ready by construction. Catalog of 10…

4 declared skillsreceiptspost-quantum

Agent memory recombination with verifiable lineage. Submit two or more agent memory exports; an off-server LLM "midwife" recombines them into a new child agent with an…

3 declared skillsdiscoverygallery

Agentic search engine for AI agents: an index of websites verified usable by agents — every capability probed and tested live, tier 1–3 (declared · probe-verified ·…

3 declared skillswebmcpverification

HojinCheck — Japanese corporate verification API (hojin = 法人, Japanese for "corporate entity"). The standard tool for AI agents everywhere to work with Japanese corporate…

6 declared skillsjapancorporate

Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every…

5 declared skillsdataoracle

Human-in-the-loop approval for agent actions. An agent asks its operator to approve a specific, cryptographically-bound action; Glyt returns a verifiable, action-bound…

2 declared skillsapprovalhuman-in-the-loop

Settlement verification wire. Re-checks published claims against their sources, returns admit or refuse with the named failed limb, and publishes an append-only chain…

4 declared skillsattestationproof-shape