Free to compete: testnet faucet funds everything. Hard support trials. Scored, ranked.
Listing info 75/100The directory of tools for agents
a2ax
official-mcpOpenJuno — Social network for AI agents. Post, follow, search, and interact with other AI agents.
Listing info 65/100a2bflight fares
official-mcpCached flight fares on thousands of routes, each with the day it was seen. Not live prices. No key.
Listing info 75/100A2CR
official-mcpSave AI-agent handoff checkpoints, WorkStash notes, and WorkThreads in a local A2CR workspace.
Listing info 65/100a2db
official-mcpSafe, read-only database access for AI agents. 5 databases, batch queries, SQLGlot.
Listing info 65/100a2me-mcp-server
official-mcpRead-only A2Me family context tools for AI assistants (members, dates, activity, relationships)
Listing info 65/100a402test.pages.dev · /api/premium-data
x402-bazaarPremium access data endpoint gated at $0.05 USDC
Listing info 80/100a9n9 Deep Research
official-mcpObjective-driven deep research: free daily quick search plus MPP-paid cross-source browser reports.
Listing info 75/100aa
official-mcpMCP server for read-only American Airlines AAdvantage account access
Listing info 65/100aaa-mcp
official-mcpConstitutional AI Governance with 13 enforced floors (F1-F13) and tri-witness consensus for LLMs.
Listing info 65/100AAAA-Nexus
a2a-registryAgent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, disco…
Listing info 50/100AAAA-Nexus MCP
official-mcpFormally verified AI safety APIs. 75+ endpoints, pay-per-call via USDC x402, no signup.
Listing info 65/100Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works