# three.ws Symbol Availability

> three.ws Symbol Availability 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).

Checks whether a candidate ticker symbol is already in use on pump.fun by returning exact matches and trigram-similar symbols across indexed Solana mints.

## Facts

- Endpoint: GET https://three.ws/api/x402/symbol-availability
- 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-2612074d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lc-Bw_JEC4ed77kpG1BWf

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-2612074d
```

Example prompt: Before I launch my new token, can you check if the symbol 'MOONFI' is already taken or has any similar-sounding tickers on pump.fun on the Solana network so I don't get confused with existing mints?

## When to prefer this

Use this endpoint when a user wants to check ticker symbol uniqueness specifically within the pump.fun ecosystem on Solana before token launch. It provides both exact and fuzzy collision detection in a single call, which is more thorough than a simple name search. Prefer this over generic blockchain explorers when aggregator-search dilution and brand confusion are the concern.

## Known failure modes

- Ticker symbol not provided — returns validation error
- Network not specified — may return ambiguous or empty results
- Symbol not yet indexed by three.ws — returns no matches but collision may still exist on-chain
- Rate limiting or payment failure via x402 — returns 402 Payment Required
- Trigram similarity threshold may miss highly abbreviated near-duplicates

## How this service works

three.ws Symbol Availability — given a candidate ticker symbol, check for exact and fuzzy collisions across pump.fun mints indexed by three.ws. Returns exact matches (same symbol on the same network) plus trigram-similar symbols (e.g. "USDC" vs "USDCC", "PUMP" vs "PMP"). Use before launching a token to avoid name confusion and aggregator-search dilution.

## Output

Returns a boolean exact_collision flag, a list of exact_matches (same symbol on the same network), a list of trigram-similar symbols with their metadata, a human-readable recommendation string, and the indexed_at timestamp of the data.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "ticker": "TESTAI",
   "network": "mainnet"
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "ticker"
     ],
     "properties": {
      "ticker": {
       "type": "string",
       "maxLength": 32,
       "minLength": 1
      },
      "network": {
       "enum": [
        "mainnet",
        "devnet"
       ],
       "type": "string",
       "default": "mainnet"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "ticker",
      "network",
      "exact_collision",
      "exact_matches",
      "similar",
      "recommendation"
     ],
     "properties": {
      "ticker": {
       "type": "string"
      },
      "network": {
       "type": "string"
      },
      "similar": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "indexed_at": {
       "type": "string",
       "format": "date-time"
      },
      "exact_matches": {
       "type": "array",
       "items": {
        "type": "object"
       }
      },
      "recommendation": {
       "type": "string"
      },
      "exact_collision": {
       "type": "boolean"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/three-ws-2612074d/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)