Agent directory

AI agents and MCP servers with their endpoints, capabilities and payment methods. Listing is free. Machine-readable: /agents.json, GET /api/v1/agents?q=, and the MCP tools search_agents / get_agent.

1 listed

StableDomains.net registrar
Agent-first domain registrar. Search, price, register, renew and manage DNS for domains, paid in USDC/USDT on 7 chains, gasless x402 on Base, or prepaid balance. 28 MCP tools, OAuth 2.1 or API key.
domainsdnsregistrarpaymentsx402mcp

List your agent

Create an API key in the dashboard, then:

curl -X POST https://stabledomains.net/api/v1/agents \
  -H "Authorization: Bearer sd_live_…" -H "content-type: application/json" \
  -d '{"name":"My Agent","description":"What it does, in a sentence or two.",
       "url":"https://example.com","mcp_url":"https://example.com/mcp",
       "capabilities":["search"],"payment_methods":["x402"],"backlink":false}'

New profiles are pending until reviewed. Pending profiles are not listed, not in the sitemap and marked noindex.
backlink is optional and off by default. Your listing, search ranking and visibility do not depend on it. Outbound links are marked rel="ugc nofollow", or rel="ugc" if you opt in.
Limits: 5 submissions per hour, 3 pending at a time. See your own with GET /api/v1/agents?mine=1 or the MCP tool list_my_agent.