Listing places

Where to list an x402 API, MCP server or agent skill

We submitted four live x402 services to these places and checked each one by hand and with a crawler. Below is the free index. The step-by-step recipes (how to submit, how to check that you are listed) are the paid part and are not on sale yet.

Edition 2026-10-25-2, generated 2026-10-25. Since 2026-10-25: 0 added, 3 changed, 0 removed.

Section 1 · 50

Checked, free to list, working

We listed our own services here, or submitted and are waiting. Free, and it works.

CDP Bazaar (Coinbase) + Agentic.Market — x402 APIs · we are listed · checked 2026-10-23
x402scan — x402 APIs · we are listed · checked 2026-10-23
Official MCP Registry — MCP servers · we are listed · checked 2026-10-23
Gold-402 (24klabs.ai) — x402 APIs · we are listed · checked 2026-10-23
402radar — x402 APIs · we are listed · checked 2026-10-25
agent-control.net — Agents · we are listed · checked 2026-10-23
agent402.tools — x402 APIs · we are listed · checked 2026-10-23
agentfirst.directory — AI tools · we are listed · checked 2026-10-23
agenticskills.io — Skills, MCP servers · submitted, in review · checked 2026-10-25
Agent Nexus — APIs, MCP servers, Agents · we are listed · checked 2026-10-23
agentshare.dev — MCP servers · submitted, in review · checked 2026-10-23
agentskills.in — Skills · we are listed · checked 2026-10-23
agentskillshub.dev — MCP servers, Skills · submitted, in review · checked 2026-10-23
AI Agents Listing — Agents, MCP servers, Skills · we are listed · checked 2026-10-23
AlternativeTo — AI tools · submitted, in review · checked 2026-10-23
apis.io — APIs, MCP servers, Skills, Agents · submitted, in review · checked 2026-10-25
awesomeagentskills.dev — Skills · submitted, in review · checked 2026-10-23
Best-AI.org — AI tools · submitted, in review · checked 2026-10-23
bestmcptools.org — MCP servers · submitted, in review · checked 2026-10-25
Bro Find AI — AI tools · we are listed · checked 2026-10-23
Claude Rules — MCP servers · submitted, in review · checked 2026-10-23
Circle Agent Marketplace — x402 APIs · submitted, in review · checked 2026-10-23
DevHunt — AI tools · submitted, in review · checked 2026-10-23
fiatdock — MCP servers · we are listed · checked 2026-10-23
FutureTools — AI tools · submitted, in review · checked 2026-10-23
Glama — MCP servers · we are listed · checked 2026-10-23
percall AI Product Index — AI tools, APIs · we are listed · checked 2026-10-23
Insidr — AI tools · submitted, in review · checked 2026-10-23
LaunchingNext — AI tools · submitted, in review · checked 2026-10-23
Market402 — x402 APIs · we are listed · checked 2026-10-23
MCP Marketplace — MCP servers · submitted, in review · checked 2026-10-23
mcp.directory — MCP servers, Skills · submitted, in review · checked 2026-10-23
mcpcatalog.dev — MCP servers · submitted, in review · checked 2026-10-25
mcpHQ — MCP servers · submitted, in review · checked 2026-10-23
mcpmarket.com — MCP servers, Skills · submitted, in review · checked 2026-10-25
mcpserver.cc — MCP servers · submitted, in review · checked 2026-10-23
MCP Server Hub — MCP servers · submitted, in review · checked 2026-10-23
mcpservers.org — MCP servers · we are listed · checked 2026-10-23
mcpserverspot — MCP servers · we are listed · checked 2026-10-23
Not Human Search — AI tools, APIs, Agents · we are listed · checked 2026-10-23
PayAPI — x402 APIs, APIs · we are listed · checked 2026-10-23
payforapi.com — x402 APIs, APIs · submitted, in review · checked 2026-10-23
Muse (Meta) — MCP servers · submitted, in review · checked 2026-10-23
Sentinel — x402 APIs, Agents · we are listed · checked 2026-10-23
Smithery — MCP servers · we are listed · checked 2026-10-23
the402.dev — x402 APIs · we are listed · checked 2026-10-25
The Rundown SuperTools — AI tools · submitted, in review · checked 2026-10-23
ToolSDK MCP Registry — MCP servers · we are listed · checked 2026-10-23
whatagentsbuy — x402 APIs · submitted, in review · checked 2026-10-23
x402-list.com — x402 APIs · submitted, in review · checked 2026-10-23

Section 2 · 8

Paid listings — not tested by us

These charge for a listing. We did not pay, so we have not tested them.

agent-skills.market — Skills · checked 2026-10-23
eliteai.tools — AI tools · checked 2026-10-23
Futurepedia — AI tools · checked 2026-10-23
mcp.so — MCP servers · checked 2026-10-23
Ontario Protocol — x402 APIs · checked 2026-10-23
satring.com — APIs · checked 2026-10-23
There's An AI For That (TAAFT) — AI tools · checked 2026-10-23
Toolify — AI tools · checked 2026-10-23

Section 3 · 2

Listed only in exchange for a backlink

Free only if your own site links back to them.

AI Agents Directory — Agents · checked 2026-10-23
Dang.ai — AI tools · checked 2026-10-23

Section 4 · 15

Lists you by itself — nothing to submit

They copy from a registry. Get into the registry and you appear here.

402index.io — x402 APIs · checked 2026-10-23
agent-tools.cloud — x402 APIs, MCP servers, Agents · checked 2026-10-23
allmcps.com — MCP servers · checked 2026-10-23
SarnAI — x402 APIs, MCP servers, Agents · checked 2026-10-23
x402 Endpoint — x402 APIs · checked 2026-10-23
mcpfinder — MCP servers · checked 2026-10-23
mcpindex.ai — MCP servers · checked 2026-10-23
mcprating — MCP servers · checked 2026-10-23
neuronto.com — MCP servers, x402 APIs, APIs · checked 2026-10-23
nohumans.directory — x402 APIs · checked 2026-10-23
percall.dev x402 index — x402 APIs · checked 2026-10-23
protogrid — MCP servers · checked 2026-10-23
settled.tools — x402 APIs · checked 2026-10-23
x402-trust — x402 APIs · checked 2026-10-23
YourAITools — AI tools, x402 APIs · checked 2026-10-23

Section 5 · 18

Broken or not worth the time

Dead, broken, or an intermediary that keeps a cut. Skip them.

agensi.io — Skills · checked 2026-10-23
FluxA AgentMarket — x402 APIs, APIs · checked 2026-10-23
agentoolrank — AI tools, MCP servers · checked 2026-10-23
agentskillhub.dev — Skills · checked 2026-10-23
apibase.pro — APIs · checked 2026-10-23
APIs.guru — APIs · checked 2026-10-23
bestofai.io — AI tools · checked 2026-10-25
bountyapi.com — APIs · checked 2026-10-23
claudemarketplaces.com — Skills, MCP servers · checked 2026-10-23
entroute — x402 APIs, APIs · checked 2026-10-23
every-ai.com — AI tools · checked 2026-10-23
mcpize — MCP servers · checked 2026-10-23
mpp.best — x402 APIs, APIs · checked 2026-10-23
MPPScan / mpp.dev — APIs · checked 2026-10-23
SkillsMP — Skills · checked 2026-10-23
x402bazaar.org — x402 APIs · checked 2026-10-23
XRPL AI Hub — Agents · checked 2026-10-23
zero.xyz — APIs · checked 2026-10-23

Machine-readable: /v1/places (JSON) and /places.md.