73trust / 100

Markets Fear Greed

by Tanod utilpeek in Markets & finance

x402 APIPassing, checked 4 h ago

Crypto Fear and Greed Index API: today's value (0 to 100), label and the last 7 days from alternative.me, with attribution (utilpeek by Tanod). Use when an agent needs the crypto Fear & Greed Index: today's value, label and the last 7 days.

POST https://tanod.dev/v1/markets/fear-greed

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
831 ms typical, 1.2 s slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

POST https://tanod.dev/v1/markets/fear-greed

Each call costs $0.001 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://tanod.dev/v1/markets/fear-greed
content-type: application/json

{}

Example response

The provider's example. We can't check it without paying.

Example response, 54 lines
{
  "as_of": "2026-10-11",
  "attribution": "Crypto Fear & Greed Index by alternative.me (https://alternative.me/crypto/fear-and-greed-index/). Tanod is not affiliated with alternative.me.",
  "disclaimer": "Informational only. Not investment advice.",
  "history_7d": [
    {
      "date": "2026-10-11",
      "label": "Greed",
      "value": 61
    },
    {
      "date": "2026-10-10",
      "label": "Greed",
      "value": 64
    },
    {
      "date": "2026-10-09",
      "label": "Neutral",
      "value": 59
    },
    {
      "date": "2026-10-08",
      "label": "Greed",
      "value": 64
    },
    {
      "date": "2026-10-07",
      "label": "Greed",
      "value": 71
    },
    {
      "date": "2026-10-06",
      "label": "Greed",
      "value": 73
    },
    {
      "date": "2026-10-05",
      "label": "Greed",
      "value": 70
    }
  ],
  "label": "Greed",
  "retrieved_at": "2026-10-11T12:25:13Z",
  "scale": "0 = extreme fear, 100 = extreme greed",
  "source": {
    "license": "Commercial use allowed with attribution right next to the data",
    "name": "alternative.me, Crypto Fear & Greed Index",
    "notice": "Source: alternative.me Crypto Fear & Greed Index. Values are unmodified, one per day (UTC). Tanod is not affiliated with alternative.me, which does not endorse this service.",
    "terms": "https://alternative.me/crypto/fear-and-greed-index/",
    "url": "https://alternative.me/crypto/fear-and-greed-index/"
  },
  "stale": false,
  "value": 61
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/markets/fear-greed' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# 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 - -X POST 'https://tanod.dev/v1/markets/fear-greed' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Fmarkets%2Ffear-greed&method=POST
const res = await pay("https://tanod.dev/v1/markets/fear-greed", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/markets/fear-greed",
        json={},
    )
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed4021.1 s$0.001
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