# Chart Library

**Canonical:** https://apis.io/providers/chartlibrary-io/  
**Website:** https://chartlibrary.io/  
**APIs profiled:** 0

Chart Library provides a weekday morning newsletter that highlights three gap stocks before the market opens, offering analysis of news impact and historical gap performance. The service is free for the first 30 days, then $5 per month, and includes detailed charts and historical data to help investors plan their opening trades.

## Kin Score — 6.2 / 100 (minimal)

Scored 2026-11-06 under rubric 0.27.0.

| Facet | Score |
|---|---|
| Discoverability | 48.2 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 4.8 |
| Access Clarity | 10.5 |

Regulatory layer — **Securities & Market Data**: 9.3 (matched via tags).

## Agent readiness — 3.1 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |
| MCP Tool Quality | na |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Chartlibrary Io Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Finance, Newsletters, Stock Analysis, Market Data, Free Trial

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/chartlibrary-io/). Scores are computed from the provider's own public artifacts under a published rubric.