Metals.Dev

Metals.Dev provides a developer-friendly JSON API for spot prices of precious metals, industrial metals, and currency conversion rates. It offers real-time prices from leading authorities including LBMA, LME, MCX, and IBJA, plus 5+ years of historical data.

Metals.Dev publishes 5 APIs on the APIs.io network, including Account API, Authority API, Currency API, and 2 more. Tagged areas include Financial Data, Gold, Precious Metals, Silver, and Spot Prices.

Metals.Dev’s developer surface includes authentication, developer portal, pricing, signup flow, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.1/100 thin ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

5 APIs

Financial Data Gold Precious Metals SilverSpot Prices

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 36.1/100 · thin

Contract Quality 13.1 / 25

Developer Ergonomics 4.3 / 20

Access Clarity 7.9 / 20

Operational Transparency 3.4 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/metals-dev: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Metals Dev Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Source (apis.yml)

aid: metals-dev
name: Metals.Dev
description: Metals.Dev provides a developer-friendly JSON API for spot prices of precious metals, industrial metals, and
  currency conversion rates. It offers real-time prices from leading authorities including LBMA, LME, MCX, and IBJA, plus
  5+ years of historical data.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/metals-dev.png
tags:
- Financial Data
- Gold
- Precious Metals
- Silver
- Spot Prices
url: https://raw.githubusercontent.com/api-evangelist/metals-dev/refs/heads/main/apis.yml
created: '2025-03-01'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: metals-dev:metals-dev-account-api
  name: Metals.Dev Account API
  description: Usage and quota information.
  humanURL: https://metals.dev/docs
  baseURL: https://api.metals.dev/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/metals-dev-account-api-openapi.yml
  - type: Documentation
    url: https://metals.dev/docs
  - type: GettingStarted
    url: https://metals.dev/docs#getting-started
- aid: metals-dev:metals-dev-authority-api
  name: Metals.Dev Authority API
  description: Authority pricing from LBMA, LME, MCX, and IBJA.
  humanURL: https://metals.dev/docs
  baseURL: https://api.metals.dev/v1
  tags:
  - Authority
  properties:
  - type: OpenAPI
    url: openapi/metals-dev-authority-api-openapi.yml
  - type: Documentation
    url: https://metals.dev/docs
  - type: GettingStarted
    url: https://metals.dev/docs#getting-started
- aid: metals-dev:metals-dev-currency-api
  name: Metals.Dev Currency API
  description: Currency rates and conversions.
  humanURL: https://metals.dev/docs
  baseURL: https://api.metals.dev/v1
  tags:
  - Currency
  properties:
  - type: OpenAPI
    url: openapi/metals-dev-currency-api-openapi.yml
  - type: Documentation
    url: https://metals.dev/docs
  - type: GettingStarted
    url: https://metals.dev/docs#getting-started
- aid: metals-dev:metals-dev-rates-api
  name: Metals.Dev Rates API
  description: Latest and historical metal and currency rates.
  humanURL: https://metals.dev/docs
  baseURL: https://api.metals.dev/v1
  tags:
  - Rates
  properties:
  - type: OpenAPI
    url: openapi/metals-dev-rates-api-openapi.yml
  - type: Documentation
    url: https://metals.dev/docs
  - type: GettingStarted
    url: https://metals.dev/docs#getting-started
- aid: metals-dev:metals-dev-spot-prices-api
  name: Metals.Dev Spot Prices API
  description: Spot pricing for individual metals.
  humanURL: https://metals.dev/docs
  baseURL: https://api.metals.dev/v1
  tags:
  - Spot Prices
  properties:
  - type: OpenAPI
    url: openapi/metals-dev-spot-prices-api-openapi.yml
  - type: Documentation
    url: https://metals.dev/docs
  - type: GettingStarted
    url: https://metals.dev/docs#getting-started
common:
- type: AgenticAccess
  url: agentic-access/metals-dev-agentic-access.yml
- type: DomainSecurity
  url: security/metals-dev-domain-security.yml
- type: Authentication
  url: authentication/metals-dev-authentication.yml
- type: GitHubOrganization
  url: https://github.com/MetalsDev
- type: Portal
  url: https://metals.dev/
- type: Pricing
  url: https://metals.dev/pricing
- type: StatusPage
  url: https://metals.dev/status
- type: Signup
  url: https://metals.dev/sign-up
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Metals.Dev

Kin Score

APIs 5

Metals.Dev Account API

Metals.Dev Authority API

Metals.Dev Currency API

Metals.Dev Rates API

Metals.Dev Spot Prices API

Open Collections 7

API Collection

Metals.Dev Account API

Metals.Dev Account Authority API

Metals.Dev Account Currency API

Metals.Dev Account Rates API

Metals.Dev Account Spot Prices API

Metals.Dev API

Pricing Plans 1

Metals Dev Plans Pricing