# goldprice.dev

> Gold, silver and copper spot, 31 currencies, per-country dealer prices and nine MCP tools.

- name: dev.goldprice/mcp
- version: 1.0.4
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 80/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.goldprice%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/dev.goldprice%2Fmcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "goldprice": {
      "type": "http",
      "url": "https://api.goldprice.dev/v1/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 98
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-95% +updated-11d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 80/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 8 of 9 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_historical (destructiveHint, idempotentHint, openWorldHint); get_forward_view (destructiveHint, idempotentHint, openWorldHint); get_physical_price (destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 1,122 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 11 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 1,122 tokens to load them all
- tool set hash: 1028692fc822de796b3b042ea924d31c
- tools last changed: 2026-10-19T01:16:38.300Z
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.goldprice/mcp.svg)](https://protogrid.dev/servers/dev.goldprice/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-19 `get_physical_price` changed (description)
  - before: Return the latest per-country physical dealer/retail gold prices — real quotes from dealers, mints, and bullion benchmarks, NOT spot-derived arithmetic — with nullable premium_over_spot_bps per quote (null when live reference inputs are unavailable). `country` is an ISO 3166-1 alpha-2 code (e.g. ID, MY, AE, JP). Uncovered countries return unknown_country on every plan. Requires the Physical tier or higher; static sample responses for evaluation are in the docs at https://goldprice.dev/docs/physical.
  - after: Return the latest per-country physical dealer/retail gold prices — real quotes from dealers, mints, and bullion benchmarks, NOT spot-derived arithmetic — with nullable premium_over_spot_bps per quote (null when live reference inputs are unavailable). `country` is an ISO 3166-1 alpha-2 code (e.g. ID, MY, AE, JP). Uncovered countries return unknown_country on every plan. Requires Basic or higher; static sample responses for evaluation are in the docs at https://goldprice.dev/docs/physical.
- 2026-10-19 `get_historical` changed (description)
  - before: Return OHLCV bar history for a symbol at 1m, 5m, 15m, 30m, 1h, 2h, 4h, or 1d (default). Intraday intervals require Pro. History depth is set automatically by your API key's plan — do NOT pass a tier argument (there is none): Free sees the last 30 days; Physical sees the last year; Pro unlocks full history back to 1996 (XAU/USD). Dates must be ISO 8601 (YYYY-MM-DD). Returns bars in date-descending order. volume is null for spot instruments (XAU/USD, XAG/USD, XCU/USD); real for futures (GC, SI, HG) and ETFs (GLD).
  - after: Return OHLCV bar history for a symbol at 1m, 5m, 15m, 30m, 1h, 2h, 4h, or 1d (default). Plus includes 1h and 4h bars for the last 30 days; Pro includes 1m to 4h bars. History depth is set automatically by your API key's plan — do NOT pass a tier argument (there is none): Free sees the last 30 days; Basic sees the last year; Plus and Pro unlock full history back to 1996 (XAU/USD). Dates must be ISO 8601 (YYYY-MM-DD). Returns bars in date-descending order. volume is null for spot instruments (XAU/USD, XAG/USD, XCU/USD); real for futures (GC, SI, HG) and ETFs (GLD).
- 2026-10-19 `get_carat` changed (description)
  - before: Return per-gram gold (XAU) prices by karat purity — 24k, 22k, 21k, 20k, 18k, 16k, 14k, 10k — in a requested currency (default USD; the same 31 currencies get_spot_price serves). Jewelry-grade pricing computed from XAU spot and exchangerate.dev FX. FREE on every tier — no plan gate. Values are Decimal-formatted strings, quantized to the currency's ISO 4217 minor unit (JPY → whole numbers, USD → 2dp).
  - after: Return per-gram gold (XAU) prices by karat purity — 24k, 22k, 21k, 20k, 18k, 16k, 14k, 10k — in a requested currency (default USD; the same 31 currencies get_spot_price serves plus EGP, NPR, PKR and VND). Jewelry-grade pricing computed from XAU spot and exchangerate.dev FX. FREE on every tier — no plan gate. Values are Decimal-formatted strings, quantized to the currency's ISO 4217 minor unit (JPY → whole numbers, USD → 2dp).
- 2026-10-16 `get_metadata` changed (description)
  - before: Return provenance metadata for a symbol: aggregated sources, unit, methodology URL, staleness rules. Use for attribution and to document data lineage in downstream reports.
  - after: Return provenance metadata for a symbol: the serving source, unit, methodology URL, staleness rules. Use for attribution and to document data lineage in downstream reports.
- 2026-10-16 `get_spot_price` changed (description)
  - before: Return the latest aggregated spot (or GC futures) price for one symbol. Price is a Decimal-formatted string. Latest USD spot price/bid/ask use nearest half-up rounding: XAU 2 decimal places, XAG 3, HG 4. Free and keyless callers get the price 15 minutes late; bid/ask are null when no quote is available. `is_stale` is true when aggregator detected source divergence or stale FX.
  - after: Return the latest spot (or GC futures) price for one symbol. Price is a Decimal-formatted string. Latest USD spot price/bid/ask use nearest half-up rounding: XAU 2 decimal places, XAG 3, HG 4. Free and keyless callers get the price 15 minutes late; bid/ask are null when no quote is available. `is_stale` is true when aggregator detected source divergence or stale FX.
- 2026-10-12 `start_checkout` changed (inputSchema)
- 2026-10-12 `get_spot_price` changed (description)
  - before: Return the latest aggregated spot (or GC futures) price for one symbol. Price is a Decimal-formatted string. Latest USD spot price/bid/ask use nearest half-up rounding: XAU 2 decimal places, XAG 3, HG 4. `is_stale` is true when aggregator detected source divergence or stale FX.
  - after: Return the latest aggregated spot (or GC futures) price for one symbol. Price is a Decimal-formatted string. Latest USD spot price/bid/ask use nearest half-up rounding: XAU 2 decimal places, XAG 3, HG 4. Free and keyless callers get the price 15 minutes late; bid/ask are null when no quote is available. `is_stale` is true when aggregator detected source divergence or stale FX.
- 2026-10-12 `start_checkout` changed (inputSchema)
- 2026-10-08 `get_physical_price` changed (description)
  - before: Return the latest per-country physical dealer/retail gold prices — real quotes from dealers, mints, and bullion benchmarks, NOT spot-derived arithmetic — with nullable premium_over_spot_bps per quote (null when live reference inputs are unavailable). `country` is an ISO 3166-1 alpha-2 code (e.g. ID, IN, AE, JP). Requires the Physical tier or higher; static sample responses for evaluation are in the docs at https://goldprice.dev/docs/physical.
  - after: Return the latest per-country physical dealer/retail gold prices — real quotes from dealers, mints, and bullion benchmarks, NOT spot-derived arithmetic — with nullable premium_over_spot_bps per quote (null when live reference inputs are unavailable). `country` is an ISO 3166-1 alpha-2 code (e.g. ID, MY, AE, JP). Uncovered countries return unknown_country on every plan. Requires the Physical tier or higher; static sample responses for evaluation are in the docs at https://goldprice.dev/docs/physical.
- 2026-10-08 `get_carat` changed (description)
  - before: Return per-gram gold (XAU) prices by karat purity — 24k, 22k, 21k, 20k, 18k, 16k, 14k, 10k — in a requested currency (default USD; the same 31 currencies get_spot_price serves). Jewelry-grade pricing computed from live XAU spot + ECB FX. FREE on every tier — no plan gate. Values are Decimal-formatted strings, quantized to the currency's ISO 4217 minor unit (JPY → whole numbers, USD → 2dp).
  - after: Return per-gram gold (XAU) prices by karat purity — 24k, 22k, 21k, 20k, 18k, 16k, 14k, 10k — in a requested currency (default USD; the same 31 currencies get_spot_price serves). Jewelry-grade pricing computed from XAU spot and exchangerate.dev FX. FREE on every tier — no plan gate. Values are Decimal-formatted strings, quantized to the currency's ISO 4217 minor unit (JPY → whole numbers, USD → 2dp).

Full history: https://api.protogrid.dev/v1/servers/dev.goldprice%2Fmcp/changes

## Remotes

- https://api.goldprice.dev/v1/mcp (streamable-http, auth none, reachable true, uptime30d 0.9512195)

## Packages

_none_

## Tools (9)

- `get_carat`: Return per-gram gold (XAU) prices by karat purity — 24k, 22k, 21k, 20k, 18k, 16k, 14k, 10k — in a requested currency (default USD; the same 31 currencies get_spot_price serves plus EGP, NPR, PKR and VND). Jewelry-grade pricing computed from XAU spot and exchangerate.dev FX. FREE on every tier — no plan gate. Values are Decimal-formatted strings, quantized to the currency's ISO 4217 minor unit (JPY → whole numbers, USD → 2dp).
- `get_forward_view`: Returns the multi-horizon futures settlement curve for a commodity (XAU, XAG, HG). Every populated horizon up to one year forward. Useful for bot builders and traders seeing the futures-implied path. See https://goldprice.dev/methodology#forward-view-layers for per-layer math.
- `get_historical`: Return OHLCV bar history for a symbol at 1m, 5m, 15m, 30m, 1h, 2h, 4h, or 1d (default). Plus includes 1h and 4h bars for the last 30 days; Pro includes 1m to 4h bars. History depth is set automatically by your API key's plan — do NOT pass a tier argument (there is none): Free sees the last 30 days; Basic sees the last year; Plus and Pro unlock full history back to 1996 (XAU/USD). Dates must be ISO 8601 (YYYY-MM-DD). Returns bars in date-descending order. volume is null for spot instruments (XAU/USD, XAG/USD, XCU/USD); real for futures (GC, SI, HG) and ETFs (GLD).
- `get_metadata`: Return provenance metadata for a symbol: the serving source, unit, methodology URL, staleness rules. Use for attribution and to document data lineage in downstream reports.
- `get_physical_price`: Return the latest per-country physical dealer/retail gold prices — real quotes from dealers, mints, and bullion benchmarks, NOT spot-derived arithmetic — with nullable premium_over_spot_bps per quote (null when live reference inputs are unavailable). `country` is an ISO 3166-1 alpha-2 code (e.g. ID, MY, AE, JP). Uncovered countries return unknown_country on every plan. Requires Basic or higher; static sample responses for evaluation are in the docs at https://goldprice.dev/docs/physical.
- `get_spot_price`: Return the latest spot (or GC futures) price for one symbol. Price is a Decimal-formatted string. Latest USD spot price/bid/ask use nearest half-up rounding: XAU 2 decimal places, XAG 3, HG 4. Free and keyless callers get the price 15 minutes late; bid/ask are null when no quote is available. `is_stale` is true when aggregator detected source divergence or stale FX.
- `list_commodities`: Return the full list of symbols served by this API. Use before get_spot_price / get_historical / get_metadata when you don't know which symbols are supported.
- `search_docs`: Search the goldprice.dev FAQ corpus via BM25. Returns top-K matching questions + answers with relevance scores. Use before answering how-to / billing / auth questions so you cite the canonical text instead of guessing from training data.
- `start_checkout`: Open a direct billing URL for an explicitly selected eligible plan: a one-hour Stripe Checkout URL for Free accounts or the existing customer's Stripe billing portal. This always asks the human to confirm the same plan first; a cancellation creates nothing.