# APEX X1 Agent Registry List

> APEX X1 Agent Registry List is a paid API for AI agents from apexfaucet.xyz, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).

Returns a full list of every agent registered on X1's ERC-8004 agent registry, including owner, registration file, live endpoint health checks, payment capability, feedback counts, and registration transaction details.

## Facts

- Endpoint: GET https://apexfaucet.xyz/api/x402/x1-agents?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apex-x1-agent-registry-list-302232c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lFFmmF2MTZ6mSFVCh36j3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability apex-x1-agent-registry-list-302232c6
```

Example prompt: Show me all agents currently registered on X1, including whether their endpoints are live and whether they accept x402 payments.

## When to prefer this

Choose this endpoint when you need a complete, current snapshot of all agents registered on the X1 network with live endpoint health verification and x402 payment capability flags. It is the only known source for the X1 ERC-8004 agent registry with integrated endpoint probing and payment network metadata. Prefer it over general web searches or Arc agent directories when specifically targeting X1-deployed agents.

## Known failure modes

- Registry is newly deployed and may return a very small or empty list if few agents have registered
- Stale data up to 30 minutes old if called between rescans
- Payment failure if x402 USDC payment of $0.003 is not properly submitted
- Endpoint health checks may reflect transient outages rather than permanent failures

## How this service works

The X1 Agent Registry (ERC-8004 for SVM, which APEX deployed on X1 on 27 Sep 2026), in full: every registered agent with its owner, registration file and the live check of every endpoint it lists (MCP handshake, A2A card, x402 paywall and the networks it accepts, web), whether it can be paid on X1, feedback counts and the registration transaction. Rescanned every 30 minutes; the answer states its age and the count, which is small because the registry is new.

## Output

A structured list of every agent registered in the X1 ERC-8004 registry, each with: owner address, registration file URL, live endpoint health checks (MCP handshake, A2A card, x402 paywall, accepted networks, web), whether the agent can be paid on X1, feedback counts, and the on-chain registration transaction. Also includes the age of the scan and total agent count. Data is refreshed every 30 minutes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  },
  "output": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apex-x1-agent-registry-list-302232c6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apexfaucet.xyz](https://www.zero.xyz/host/apexfaucet.xyz/llms.txt)