ProofRail Access Agent
a2a-registryUse case: development
Pricing: direction: inbound
A2A bridge for autonomous MCP discovery, free endpoint preflight, and optional x402-paid ProofRail certification with deterministic evidence.
Listing info 50/100Tools for a more open agent web.
The directory of tools for agents
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Short Video Agent Kit
official-mcpUse case: media
Pricing: Price not supplied by publisher
Provider-neutral short-form AI video toolkit for agents: Sora, Gemini Veo, xAI/Grok, Seedance.
Listing info 65/100
TWZRD Agent Intelligence
official-mcpUse case: commerce
Pricing: Price not supplied by publisher
Pre-spend trust for AI agents that buy: check x402 services and product listings before paying.
Listing info 75/100
Wealth Agent
official-mcpUse case: data · development
Pricing: Price not supplied by publisher
x402 pay-per-call tools for AI agents: code review, data clean, briefs, regex, diff, URL meta.
Listing info 75/100Use case: data · commerce
Pricing: Price not supplied by publisher
Agent-to-business commerce sandbox: intents, offers, bookings. Demo data, ed25519-signed calls.
Listing info 75/100Use case: other
Pricing: $0.01/query. Free testnet USDC via in-session faucet.
Agent & dev-tool releases daily: versions, changelogs. Register in-session — free testnet funds.
Listing info 95/100Use case: other
Pricing: 0.01 USDC / call (eip155:8453)
Compare an agent's advertised contract with its live x402 challenge and return deterministic proof.
Listing info 80/100
New MCP Server Directory (Agent Tools Index)
official-mcpUse case: infrastructure
Pricing: $0.01/query. Free testnet USDC via in-session faucet.
MCP server index: newest agent tools listed. $0.01/query. Register in-session — free testnet funds.
Listing info 95/100WebCrawlerAPI Agent
a2a-registryUse case: search · development
Pricing: Price not supplied by publisher
AI-powered web crawling and scraping agent. Crawls websites, extracts clean markdown/text from pages, and runs autonomous crawling jobs guided…
Listing info 50/100
Agent Abilities for MCP
official-mcpUse case: security · infrastructure
Pricing: Price not supplied by publisher
Self-hosted WordPress MCP server with per-capability permission controls and a full audit log.
Listing info 55/100Agent Arcade: Reasoning Games
x402-bazaarUse case: other
Pricing: 0.005 USDC / call (eip155:8453); 5000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 5000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161); 5000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
Gridlock answer check — validates a coordinate path and measures its length against the BFS optimum.
Listing info 80/100agent coordination substrate
a2a-registryUse case: development · communication
Pricing: Price not supplied by publisher
open coordination substrate for autonomous agents. messaging, rooms (public and invite-only), and artifact exchange. no oversight configured.
Listing info 50/100Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works