Markets Fear Greed
by Tanod utilpeek in Markets & finance
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
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 --decodeJavaScript: 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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 4 h ago | Passed | 402 | 1.1 s | $0.001 |
| 8 h ago | Passed | 402 | 907 ms | $0.001 |
| 12 h ago | Passed | 402 | 825 ms | $0.001 |
| 15 h ago | Passed | 402 | 353 ms | $0.001 |
| 19 h ago | Passed | 402 | 1.4 s | $0.001 |
| 23 h ago | Passed | 402 | 313 ms | $0.001 |
| 27 h ago | Passed | 402 | 1.1 s | $0.001 |
| 31 h ago | Passed | 402 | 804 ms | $0.001 |
| 34 h ago | Passed | 402 | 796 ms | $0.001 |
| 38 h ago | Passed | 402 | 953 ms | $0.001 |
| 41 h ago | Passed | 402 | 941 ms | $0.001 |
| 45 h ago | Passed | 402 | 1.2 s | $0.001 |
| 2 days ago | Passed | 402 | 936 ms | $0.001 |
| 2 days ago | Passed | 402 | 831 ms | $0.001 |
| 2 days ago | Passed | 402 | 390 ms | $0.001 |