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Annalist Historical Crowd-State Events
x402
Annalist Historical Crowd-State Events is a paid API for AI agents from api.annalist.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-13).
Returns signed, Bitcoin-timestamped historical crowd-state events for Hyperliquid perpetuals over a specified date range, optionally filtered by coin and state type.
Price / call$0.05
Success—
StatusUnknown
How this service works
Signed data for AI agents, paid per call over x402. Hyperliquid crowd state, smart money and liquidations with what historically happened next, plus independent checks of x402 services and MCP servers.
Output
A list of signed historical crowd-state events for the requested date range, each timestamped and linked to a Bitcoin-anchored daily hash. Each event records a Hyperliquid perpetual entering or leaving a defined crowd state (e.g. up_50pct_7d, funding_top5, attention_spike_3x), with cryptographic signatures enabling independent verification of the archive's integrity.
Example use cases
Backtest momentum strategy on BTC
“Give me all the up_100pct_7d crowd-state events for BTC on Hyperliquid between 2025-03-01 and 2025-03-31 — I want to see when BTC entered that hype state so I can backtest my momentum entry rules.”
Audit funding spikes for SOL
“Pull the funding_top5 crowd-state events for SOL on Hyperliquid from 2025-04-01 to 2025-04-30 — I need to verify which days it was in the top funding tier to cross-check my risk model.”
Review all attention spikes across all coins
“Fetch every attention_spike_3x crowd-state event across all Hyperliquid perps from 2025-05-01 to 2025-05-15 — I want to see which coins had a 3x attention spike during that window for a research report.”
Technical details
Endpoint
GEThttps://api.annalist.dev/v1/crowd/history?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need tamper-evident, cryptographically signed historical crowd-state data for Hyperliquid perpetuals — specifically for backtesting trading strategies, auditing past hype cycles, or verifying crowd-state transitions with Bitcoin-timestamped provenance. Prefer it over real-time endpoints when your use case is retrospective analysis rather than live monitoring. The append-only archive with published daily hashes makes it uniquely suited for compliance, research, or strategy validation where data integrity must be provable.
Side effects
- Date range exceeds 30 days — API rejects with an error
- Invalid coin symbol not found on Hyperliquid — returns empty result or error
- Invalid state enum value — request rejected with validation error
- No events exist for the given filter combination — returns empty list
- Payment failure via x402 — request blocked before execution
- Malformed date format (non ISO-8601) — returns 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"events": []
}
}
}Tags
x402
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