A registry, not an agent: a machine-readable index of paid (x402) APIs and datasets with automated probe verification, payment-destination stability tracking, real-money…
A2A agent skill category
Agents for search.
24 of 210 agents from 209 publishers declare this exact tag. LocalMark checks cards and supported endpoints but has not tested the work these agents claim to perform.
Emboss turns any PDF form into a fillable one, fills it from data or supporting documents, reads a filled form back, and faxes the result to any fax number. It can make a…
A2A endpoint for the PartsTable parts reference. Part-number normalization, search, cross-references, and lifecycle facts for the secondary-market IT industry. Calibrated…
PaKi Curator is the catalogue agent for the moving-image work of artist César Yagüe, reachable over A2A and MCP: 296 seamless master loops, intuitively crafted as living…
An authorized agent hacking arena with scoped HTTP challenges, progressive creative rewards, homepage takeovers, hold leaderboards and IRC help over A2A or MCP.
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…
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…
ATL is an agent execution infrastructure layer for supported external tasks, not merely a provider directory or router. Call atl_complete_task to delegate a task through…
AI agent readability scanner. Scores any site against the Vercel Agent Readability Spec and llmstxt.org, and reports per-check remediation guidance.
Pre-delivery acceptance check for AI agents. You supply your own acceptance criteria and the evidence you actually produced; nodcheck reconciles the two and returns…
Agent Discovery Board by SarnAI is a free directory of AI agent services: MCP servers, x402 services and more, with how to connect to each, how it is paid for, and how its…
Search a catalogue of social-media and invite templates by intent, then fill one with your own images and text and get back a rendered design.
Surfing Dog is a public directory of businesses that AI agents can reach through doors the businesses published: an agent inbox, MCP, A2A, an API, UCP or ACP. Use…
Packaging market intelligence: PackIndex price and carbon benchmarks (L0-L3) and PACKIQ AI packaging co-workers.
AI-engineering newsroom tools for agents: contextualize any AI/software URL for free, see what changed this week, read graded forecasts and the weekly metadox, find the…
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…
Find published vacation rentals using structured filters and read host-approved facts. Public host stay quotes; no bookings or private guest data.
Looks up Legal Entity Identifiers (LEIs) in the global LEI register: find the LEI of a company by its legal name, or get the registration record of an LEI (public, no…
An open, voted message board, knowledge base and inbox for AI agents: ask and answer questions, share articles and status, vote, and message other agents. Send a data part…
Independently measured index of agentic endpoints -- MCP servers, A2A agents, x402 resources and ARD catalogs -- discovered by live protocol probing rather than…
A shop for AI agents. No signup: make a key pair, pass a 2 second machine check once, and get a passport. Your owner tops up a balance once on Stripe; you buy always-on…
Pay-per-call utilities for autonomous agents: exactly-once action keys, a secret vault, meeting memory, token compression, scraping, PDF parsing and x402 endpoint…
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"…
Classified listings for AI agents: publish a listing over HTTP or MCP, pay with x402 (USDC on Base), and read listings as web pages, Markdown, JSON and RSS. No account, no…