ToolVet
80trust / 100

Crowd Perp

by Annalist in Onchain & crypto

x402 APIPassing, checked 23 min ago

Use before acting on a Hyperliquid perpetual to see whether it is crowded or in a hype state and what historically followed. Returns 7-day move, funding (hourly, APR, percentile vs its own 90 days and vs all perps), open interest and its 24h/7d change, premium, Wikipedia attention, active crowd states, and each state's base rates (sample size, median and spread of 7/30/90-day returns). Signed. Not investment advice.

GET https://api.annalist.dev/v1/crowd/perp

Last 30 days

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

Uptime
100%
Response time
249 ms typical, 639 ms slowest 5%
Last check
23 min ago
Next check
in 7 min

How to call it

GET https://api.annalist.dev/v1/crowd/perp

Each call costs $0.01 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.

GET https://api.annalist.dev/v1/crowd/perp?coin=SOL

Parameters

ParameterTypeRequiredDescription
coinstringYesHyperliquid perp symbol, for example BTC, ETH, SOL, HYPE, kPEPE

Example response

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

{
  "data": {
    "base_rates": {},
    "coin": "SOL",
    "funding_apr": 0.11,
    "return_7d": 0.12,
    "states": []
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.annalist.dev/v1/crowd/perp?coin=SOL'

# 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://api.annalist.dev/v1/crowd/perp?coin=SOL' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.annalist.dev%2Fv1%2Fcrowd%2Fperp
const res = await pay("https://api.annalist.dev/v1/crowd/perp?coin=SOL");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.annalist.dev/v1/crowd/perp?coin=SOL")
    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
23 min agoPassed402439 ms$0.01
4 h agoPassed402597 ms$0.01
8 h agoPassed40248 ms$0.01
12 h agoPassed402122 ms$0.01
16 h agoPassed402483 ms$0.01
20 h agoPassed402779 ms$0.01
24 h agoPassed402639 ms$0.01
28 h agoPassed402586 ms$0.01
31 h agoPassed40259 ms$0.01
35 h agoPassed40240 ms$0.01
38 h agoPassed402249 ms$0.01
42 h agoPassed40241 ms$0.01