goldprice-dev

Goldprice.dev provides a free and paid JSON API delivering live gold (XAU), silver (XAG), and copper (HG) spot prices, plus futures settlement data, in 31 currencies. The service includes timestamps, source attribution, and an MCP stdio bridge on every plan, catering to developers, fintech engineers, and quantitative traders.

goldprice-dev is listed with 1 API on the APIs.io network. Tagged areas include Company, API, Finance, Commodities, and Data.

The goldprice-dev catalog on APIs.io includes 1 event-driven AsyncAPI specification.

goldprice-dev’s developer surface includes CLI, pricing, documentation, changelog, engineering blog, getting-started guide, API reference, and 21 more developer resources.

🌐 Visit website📡 Profile data on GitHub
49.2/100 developing Agent 26/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →
1 API 1 Agent Skills
CompanyAPIFinanceCommoditiesData

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0
Composite quality — 49.2/100 · developing
Contract Quality 8.3 / 21
Developer Ergonomics 8.8 / 17
Access Clarity 12.4 / 17
Operational Transparency 3.8 / 11
Contract Governance 1.7 / 10
Discoverability 5.6 / 9
Regulatory Posture 3.7 / 15
Agent readiness — 26/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Pagination 5 / 5
Distinct Operations 3 / 3
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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Agent readiness — checks not met, largest first (exact, from this profile):
  • Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
  • Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
  • Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
8 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/goldprice-dev/apis.yml: open an issue on github.com/api-evangelist/goldprice-dev to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

Gold API

Gold, silver and copper spot prices, with delayed futures settlement prices and gold conversion across 31 currencies using exchangerate.dev FX.

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

goldprice-dev-noops

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Goldprice Dev Plans Pricing

4 plans

PLANS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Goldprice Dev Webhooks

ASYNCAPI

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Goldprice Dev Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Goldprice Dev Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login
Login
 GettingStarted
GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Webhooks
Webhooks
 Conventions
Conventions
 Conformance
Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

CLI
CLI
 SDKs
SDKs
 Packages
Packages

Access & Security 6

Authentication, authorization, and security posture

Security
Security
 SecurityTxt
SecurityTxt
 SecurityTxt
SecurityTxt
 SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog
ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Pricing
Pricing

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 2

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: goldprice-dev
name: goldprice-dev
image: https://goldprice.dev/og.jpg
description: Goldprice.dev provides a free and paid JSON API delivering live gold (XAU), silver (XAG), and copper (HG) spot
  prices, plus futures settlement data, in 31 currencies. The service includes timestamps, source attribution, and an MCP
  stdio bridge on every plan, catering to developers, fintech engineers, and quantitative traders.
url: https://artifacts.apis.io/goldprice-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- API
- Finance
- Commodities
- Data
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/goldprice-dev-plans-pricing.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/goldprice-dev-webhooks.yml
- type: CLI
  url: cli/goldprice-dev-cli.yml
- type: Conventions
  url: conventions/goldprice-dev-conventions.yml
- type: Security
  url: https://goldprice.dev/terms
- type: Conformance
  url: conformance/goldprice-dev-conformance.yml
- type: LLMsTxt
  url: llms/goldprice-dev-llms.txt
- type: SecurityTxt
  url: well-known/goldprice-dev-security.txt
- type: SecurityTxt
  url: well-known/goldprice-dev-narwhalapi-security.txt
- type: SecurityTxt
  url: well-known/goldprice-dev-exchangerate-security.txt
- type: WellKnown
  url: well-known/goldprice-dev-well-known.yml
- type: Hosts
  url: hosts/goldprice-dev-hosts.yml
- type: Vendors
  url: vendors/goldprice-dev-vendors.yml
- type: SDKs
  url: packages/goldprice-dev-packages.yml
- type: Packages
  url: packages/goldprice-dev-packages.yml
- type: TermsOfService
  url: https://goldprice.dev/terms
- type: PrivacyPolicy
  url: https://goldprice.dev/privacy
- type: Pricing
  url: https://goldprice.dev/pricing
- type: Login
  url: https://goldprice.dev/login
- type: Documentation
  url: https://goldprice.dev/docs
- type: ChangeLog
  url: https://goldprice.dev/changelog
- type: Blog
  url: https://goldprice.dev/blog
- type: GettingStarted
  url: https://narwhalapi.com/docs/mcp
- type: APIReference
  url: https://narwhalapi.com/docs/quickstart
- type: VulnerabilityDisclosure
  url: security/goldprice-dev-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/goldprice-dev-domain-security.yml
- type: Website
  url: https://goldprice.dev/
apis:
- name: Gold API
  description: Gold, silver and copper spot prices, with delayed futures settlement prices and gold conversion across 31 currencies
    using exchangerate.dev FX.
  humanURL: https://goldprice.dev/docs/api-reference
  baseURL: https://api.goldprice.dev
  aid: goldprice-dev:gold-api
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

goldprice-dev API — frequently asked questions

Does goldprice-dev have an API?

Yes. APIs.io lists 1 API from goldprice-dev, including Gold API.

How much does the goldprice-dev API cost?

APIs.io lists 4 pricing plans for goldprice-dev, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the goldprice-dev API ready for AI agents?

goldprice-dev has a Kin Score of 49.2 out of 100 (developing) and an Agent Readiness score of 26.1 (agent-aware), scored by API Evangelist on 2026-10-31.

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