# Messari API — Hourly Crypto Asset Social Signal History

> Messari API — Hourly Crypto Asset Social Signal History is a paid API for AI agents from api.messari.io, paid per call via x402, $0.75/call, status unknown (last checked 2026-09-15).

Returns hourly time-series data for crypto asset social signals including mindshare, sentiment score, and momentum score.

## Facts

- Endpoint: GET https://api.messari.io/signal/v1/assets/time-series/1h
- Price: $0.75/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/messari-api-hourly-crypto-asset-social-signal-history-eca509ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bfgji7zNO3zjFriE6eiFc

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability messari-api-hourly-crypto-asset-social-signal-history-eca509ad
```

Example prompt: Pull Messari's hourly social signal history for Bitcoin (assetID: bitcoin) from January 1 to January 7, 2026, at 1h granularity — I want to see the mindshare, sentiment score, and momentum score for each hour.

## When to prefer this

Use this endpoint when you need fine-grained (hourly) social signal tracking for a crypto asset, especially for intraday analysis of mindshare shifts, sentiment swings, or momentum changes. Prefer the daily endpoint for longer-horizon trend analysis. Choose this over generic price APIs when social/community signal data is the primary need.

## Known failure modes

- Missing required 'granularity' parameter returns a 400 validation error
- Invalid or unknown assetID may return empty data or 404
- Invalid date format for start/end returns a parsing error
- Requests without valid x402 payment result in 402 Payment Required
- Time range too large may result in pagination truncation or timeout

## How this service works

Get hourly crypto asset social signal history.

## Output

An array of hourly data points, each containing a UTC timestamp, mindshare value (e.g. 11.9), sentiment score (0–1 float, e.g. 0.61), and momentum score (float, e.g. 0.38) for the requested crypto asset.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "granularity"
 ],
 "properties": {
  "end": {
   "type": "string"
  },
  "start": {
   "type": "string"
  },
  "assetID": {
   "type": "string",
   "description": "Optional asset identifier filter for asset timeseries."
  },
  "granularity": {
   "enum": [
    "1d",
    "1h"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {
  "data": [
   {
    "mindshare": 11.9,
    "timestamp": "2026-01-01T00:00:00Z",
    "momentumScore": 0.38,
    "sentimentScore": 0.61
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/messari-api-hourly-crypto-asset-social-signal-history-eca509ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.messari.io](https://www.zero.xyz/host/api.messari.io/llms.txt)