# Metals-API

**Canonical:** https://apis.io/providers/metals-api/  
**Website:** https://metals-api.com/  
**APIs profiled:** 4

Metals-API provides a free, simple, and lightweight JSON API for current and historical precious metals rates and currency conversion. It supports real-time and historical data for gold, silver, platinum, palladium, and other metals in 170 world currencies.

## Kin Score — 33.7 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 33.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 52.4 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 22.9 (agent-aware)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (4)

- **Metals-API Analytics API** — Time series, fluctuation, and OHLC analytics.
- **Metals-API Conversion API** — Currency and metal conversion endpoints.
- **Metals-API Rates API** — Real-time and historical precious metals rates.
- **Metals-API Reference API** — Symbols and reference data.

## Agentic access (1)

- **Metals Api Agentic Access** — 9 operations

## Security (2)

- **Metals Api Authentication** — apiKey · 1 scheme
- **Metals Api Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Metals Api Plans Pricing**

## Tags

Currency, Financial Data, Gold, Precious Metals, Silver

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