What is exchange-rate-get-convert?

A currency-conversion endpoint that changes an amount from one three-letter currency code to another and returns the exchange rate and converted value.

Use it for price displays, budgeting tools, invoices, financial forms, or travel apps that need to convert amounts between currencies.

Converting prices manually is error-prone, especially when the exchange rate changes. This calculates the result and reports the rate used.

exchange-rate-get-convert — Skill for Claude Code by bobadilla-tech

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add bobadilla-tech/requiems-api-skills --skill exchange-rate-get-convert

Clone the repo

git clone --depth 1 https://github.com/bobadilla-tech/requiems-api-skills

Made for: Claude Code.

Or install requiems-api-skills, the plugin that ships this one along with the rest of its 127 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/exchange-rate-get-convert/github.svg)](https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/exchange-rate-get-convert)

Your own site

<a href="https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/exchange-rate-get-convert"><img src="https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/exchange-rate-get-convert/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/exchange-rate-get-convert"><img src="https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/exchange-rate-get-convert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 505 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00024	$0.00505
Opus 5	$0.00012	$0.00253
Sonnet 5	$0.00005	$0.00101
Haiku 4.5	$0.00002	$0.00051

Measured 11d ago against content hash 4aa25cd86abf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

exchange-rate-get-convert scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/exchange-rate-get-convert/SKILL.md · 60 lines

What it actually says

Endpoint

GET https://requiems.xyz/v1/finance/convert

Convert Currency

Converts an amount from one currency to another and returns the rate alongside the converted value.

Parameters

Name	Type	Required	Location	Description
`from`	string	yes	query	ISO 4217 source currency code (3 letters, e.g. USD)
`to`	string	yes	query	ISO 4217 target currency code (3 letters, e.g. EUR)
`amount`	number	yes	query	Amount to convert. Must be greater than 0.

Response Example

{
  "data": {
    "from": "USD",
    "to": "EUR",
    "rate": 0.92,
    "amount": 100,
    "converted": 92.00,
    "timestamp": "2024-12-15T00:00:00Z"
  },
  "metadata": {
    "timestamp": "2026-01-01T00:00:00Z"
  }
}

Response Fields

Field	Type	Description
`from`	string	Source currency code (uppercased)
`to`	string	Target currency code (uppercased)
`rate`	number	Exchange rate used for the conversion
`amount`	number	The original amount passed in the request
`converted`	number	Result of amount × rate, rounded to 2 decimal places
`timestamp`	string	Date the rate was published by the ECB (ISO 8601)

Errors

400 bad_request — A required parameter is missing, the currency code is not 3 alphabetic characters, or the amount is 0 or negative.
422 invalid_currency — One or both currency codes are not recognised by the upstream data source.
503 upstream_error — The exchange rate data source is temporarily unavailable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

11d ago First seen · 60 lines · 24 tokens per session scan A 4aa25cd86abf

Subscribe to this mod's changes

exchange-rate-get-convert is a skill published in the GitHub repository bobadilla-tech/requiems-api-skills (2 stars, last pushed 4d ago), licensed MIT. It adds 24 tokens to every session and 505 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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