Fuzzy Rank

{
  "asOf": "2026-10-12T00:50:06.869Z",
  "candidateCount": 4,
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "ignoreCase": true,
  "notChecked": [
    "meaning: ranking is by surface similarity only",
    "candidates over 50 or 200 characters are refused, not truncated",
    "…2 more"
  ],
  "query": "jon smith",
  "ranked": [
    {
      "candidate": "John Smith",
      "index": 0,
      "rank": 1,
      "score": 0.9733
    },
    {
      "candidate": "Jon Smythe",
      "index": 1,
      "rank": 2,
      "score": 0.9378
    }
  ],
  "reasons": [
    "Verdict bands on the top score: EXACT_MATCH_PRESENT at 1, STRONG_MATCH at 0.85 or more, WEAK_MATCH at 0.6 or more, otherwise NO_CLOSE_MATCH. The bands are a convenience, not a standard. Ties keep inpu…"
  ],
  "returned": 4,
  "scorer": "jaro-winkler",
  "source": "computed locally (algorithms as in the other endpoints of this shelf)",
  "summary": "Best of 4 candidates: \"John Smith\" at 0.9733 (jaro-winkler).",
  "verdict": "STRONG_MATCH"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://text-similarity.x402tookit.com/fuzzy-rank?candidates=John+Smith%7CJon+Smythe%7CJoan+Smart%7CMary+Jones&query=jon+smith&scorer=jaro-winkler'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://text-similarity.x402tookit.com/fuzzy-rank?candidates=John+Smith%7CJon+Smythe%7CJoan+Smart%7CMary+Jones&query=jon+smith&scorer=jaro-winkler' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftext-similarity.x402tookit.com%2Ffuzzy-rank
const res = await pay("https://text-similarity.x402tookit.com/fuzzy-rank?candidates=John+Smith%7CJon+Smythe%7CJoan+Smart%7CMary+Jones&query=jon+smith&scorer=jaro-winkler");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://text-similarity.x402tookit.com/fuzzy-rank?candidates=John+Smith%7CJon+Smythe%7CJoan+Smart%7CMary+Jones&query=jon+smith&scorer=jaro-winkler")
    print(res.status_code, res.text)