# dragon7.space Author Market-Claim Scorecard

> dragon7.space Author Market-Claim Scorecard is a paid API for AI agents from dragon7.space, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-27).

Returns a historical scorecard for a given author's market claims, including hit rate, Wilson confidence interval, direction breakdown, coverage, and freshness metrics.

## Facts

- Endpoint: GET https://dragon7.space/v1/authors/:handle/scorecard?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dragon7-space-author-market-claim-scorecard-107e424c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XfrCe1M1WRKb3_BFpjuav

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 dragon7-space-author-market-claim-scorecard-107e424c
```

Example prompt: Can you pull up the market-claim scorecard for the author handle @cryptobull99 — I want to see their hit rate, Wilson confidence interval, and how fresh the data is?

## When to prefer this

Use this endpoint when you need a statistically grounded, structured credibility scorecard for a specific author's market predictions — especially when Wilson confidence intervals and direction breakdown matter. Prefer this over generic social analytics tools when you need resolved claim data (not just follower counts or engagement) and when vetting forecasters for research, investment decisions, or editorial purposes.

## Known failure modes

- Author handle not found — returns 404 if the handle has no tracked claims
- Insufficient resolved claims — scorecard may return with very wide confidence intervals or a low sample size warning
- Handle format error — invalid or malformed handle strings may return a 400 validation error
- Stale data — freshness field may indicate the scorecard hasn't been updated recently
- Rate limit or payment failure — missing or invalid x402 payment header may result in 402 response

## How this service works

Return an author's historical market-claim scorecard with resolved sample size, hit rate, Wilson confidence interval, direction breakdown, coverage and freshness.

## Output

Returns a structured scorecard object for the specified author handle, including: resolved sample size (number of claims evaluated), hit rate (fraction of correct predictions), Wilson confidence interval (lower and upper bounds), direction breakdown (e.g. bullish vs bearish calls and their accuracy), coverage (breadth of claims across topics or assets), and freshness (recency of the underlying data).

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dragon7-space-author-market-claim-scorecard-107e424c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dragon7.space](https://www.zero.xyz/host/dragon7.space/llms.txt)