# three.ws Solana Agent Registration Health Check

> three.ws Solana Agent Registration Health Check is a paid API for AI agents from three.ws, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Verifies the three.ws Solana agent-registration subsystem end-to-end by checking a canary agent's on-chain Metaplex Agent Registry record and confirming both Identity PDA and Core asset accounts exist on-chain.

## Facts

- Endpoint: GET https://three.ws/api/x402/solana-register-health
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/three-ws-solana-agent-registration-health-check-e1c22f04
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CP1UE9SKvcrE321XvJrrs

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 three-ws-solana-agent-registration-health-check-e1c22f04
```

Example prompt: Can you run a quick health check on the three.ws Solana agent registration system and tell me whether the canary agent's Identity PDA and Core asset are both confirmed on-chain right now, along with the RPC latency?

## When to prefer this

Use this endpoint when you need to confirm that three.ws's server-custodial Solana agent-registration pipeline is fully operational end-to-end, specifically verifying on-chain Metaplex registry records. Prefer it over generic uptime pings when you need granular on-chain account-level checks (Identity PDA + Core asset) with latency data.

## Known failure modes

- RPC node unreachable — healthy:false with reason describing connectivity failure
- Canary agent's Identity PDA not found on-chain — identity_pda_onchain:false
- Core asset account missing on-chain — asset_onchain:false
- Registry enrollment check fails — registry_enrolled:false
- Payment not received or insufficient USDC — 402 Payment Required before response
- High RPC latency causing timeout — may return null rpc_latency_ms

## How this service works

Solana Agent Registration Health Check — verifies three.ws's server-custodial Solana agent-registration subsystem end-to-end by resolving a known canary agent's on-chain Metaplex Agent Registry record (Identity PDA + Core asset) and confirming both accounts exist on-chain right now. Returns a health snapshot with latency and the checked asset. Pay-per-call in USDC on Solana or Base mainnet.

## Output

Returns a JSON health snapshot including: overall healthy boolean, individual checks (identity_pda_onchain, asset_onchain, registry_enrolled, indexed), RPC latency in milliseconds, the canary agent ID, Identity PDA address, asset address, registration URI, network name, number of consecutive failures, a reason string if unhealthy, and a checked_at timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "tool",
      "healthy",
      "checks",
      "checked_at"
     ],
     "properties": {
      "tool": {
       "type": "string"
      },
      "asset": {
       "type": [
        "string",
        "null"
       ]
      },
      "checks": {
       "type": "object",
       "properties": {
        "indexed": {
         "type": "boolean"
        },
        "asset_onchain": {
         "type": "boolean"
        },
        "registry_enrolled": {
         "type": "boolean"
        },
        "identity_pda_onchain": {
         "type": "boolean"
        }
       }
      },
      "reason": {
       "type": [
        "string",
        "null"
       ]
      },
      "healthy": {
       "type": "boolean"
      },
      "network": {
       "type": [
        "string",
        "null"
       ]
      },
      "checked_at": {
       "type": "string",
       "format": "date-time"
      },
      "identity_pda": {
       "type": [
        "string",
        "null"
       ]
      },
      "rpc_latency_ms": {
       "type": [
        "integer",
        "null"
       ]
      },
      "canary_agent_id": {
       "type": [
        "string",
        "null"
       ]
      },
      "registration_uri": {
       "type": [
        "string",
        "null"
       ]
      },
      "consecutive_failures": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/three-ws-solana-agent-registration-health-check-e1c22f04/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from three.ws](https://www.zero.xyz/host/three.ws/llms.txt)