77trust / 100

Crowd History

by Annalist in Onchain & crypto

x402 APIPassing, checked 26 min ago

Signed historical crowd-state events for backtesting: up to 30 days per call, optionally filtered by coin and state. The archive is append-only and its daily hashes are published and Bitcoin-timestamped.

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

Last 30 days

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

Uptime
100%
Response time
459 ms typical, 698 ms slowest 5%
Last check
26 min ago
Next check
in 5 min

How to call it

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

Each call costs $0.05 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/history?coin=SOL&from=2026-10-01&to=2026-10-12

Parameters

ParameterTypeRequiredDescription
coinstringNoHyperliquid perp symbol, for example BTC, ETH, SOL, HYPE, kPEPE
fromstring (date)Yes
statestringNo One of: up_50pct_7d, up_100pct_7d, up_200pct_7d, funding_top5, funding_bottom5, attention_spike_3x, new_listing.
tostring (date)Yes

Example response

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

{
  "data": {
    "events": []
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

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/history?coin=SOL&from=2026-10-01&to=2026-10-12'

# 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/history?coin=SOL&from=2026-10-01&to=2026-10-12' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.annalist.dev%2Fv1%2Fcrowd%2Fhistory
const res = await pay("https://api.annalist.dev/v1/crowd/history?coin=SOL&from=2026-10-01&to=2026-10-12");
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
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/history?coin=SOL&from=2026-10-01&to=2026-10-12")
    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
26 min agoPassed40298 ms$0.05
5 h agoPassed40278 ms$0.05
8 h agoPassed402566 ms$0.05
12 h agoPassed40239 ms$0.05
16 h agoPassed402459 ms$0.05
20 h agoPassed4021.3 s$0.05
24 h agoPassed40264 ms$0.05
28 h agoPassed402698 ms$0.05
31 h agoPassed402464 ms$0.05
35 h agoPassed402414 ms$0.05
38 h agoPassed402585 ms$0.05
42 h agoPassed402666 ms$0.05