currencylayer MCP by usefulapi
REMOTE · CURRENCYLAYER.USEFULAPI.IO
Read and calculate currency exchange rates with your paid currencylayer account.
Available components
Last scanned (1 hour ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint redirected instead of responding directly. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 1 Nov 26 −46
- Endpoint reachability: reachable → not serving MCP ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Schema quality: 100 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 31 Oct 26 64
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://currencylayer.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d9be3287b0fde9630e825ba1f79bff3f |
| SANs: usefulapi.io, *.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of currencylayer.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 302 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://currencylayer.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/currencylayer/ |
| http (plaintext) | http://currencylayer.usefulapi.io/mcp | Inconclusive | 302 | http://currencylayer.usefulapi.io/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
currencylayer_convert_currency Convert an amount ~152
SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Convert an amount from one currency to another with real-time rates, or with the rates of a past date. Returns the result and the quote used. Needs the Basic plan or higher. GET /convert.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | Amount to convert (positive, up to 1e12). |
| date | string | – | Use the rates of this date (yyyy-mm-dd) instead of real-time rates. |
| from | string | yes | Currency to convert from, e.g. USD. |
| to | string | yes | Currency to convert to, e.g. EUR. |
No output schema declared.
No examples provided.
currencylayer_get_historical_rates Get historical exchange rates ~183
SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Exchange rates for one past date (data back to 1999 for most currencies; a currency added later has no data before its start date and the whole request then fails). Quotes are keyed by pair, e.g. USDEUR. Use 'currencies' to limit the reply. GET /historical.
| Name | Type | Req | Description |
|---|---|---|---|
| currencies | array | – | Only these currency codes, e.g. ["EUR","GBP","JPY"] (default: all of them). |
| date | string | yes | The date to look up, yyyy-mm-dd. |
| source | string | – | Source (base) currency code, default USD. Needs the Basic plan or higher; every quote is then SOURCE+TARGET, e.g. EURGBP. |
No output schema declared.
No examples provided.
currencylayer_get_live_rates Get live exchange rates ~185
SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Real-time exchange rates for up to 174 world currencies and precious metals relative to a source currency (default USD). Quotes are keyed by pair, e.g. USDEUR = 0.918 means 1 USD = 0.918 EUR. The free plan refreshes daily, higher plans hourly down to every 60 seconds. Use 'currencies' to limit the reply. GET /live.
| Name | Type | Req | Description |
|---|---|---|---|
| currencies | array | – | Only these currency codes, e.g. ["EUR","GBP","JPY"] (default: all of them). |
| source | string | – | Source (base) currency code, default USD. Needs the Basic plan or higher; every quote is then SOURCE+TARGET, e.g. EURGBP. |
No output schema declared.
No examples provided.
currencylayer_get_rate_changes Get exchange rate changes ~213
SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). How exchange rates changed between two dates: per currency pair the start_rate, end_rate, absolute change and change_pct. Pass both dates or none (none = yesterday's end-of-day rate against the latest rate). Forex markets are closed on weekends, so a weekend change can be zero. Needs the Enterprise+ plan or higher. GET /change.
| Name | Type | Req | Description |
|---|---|---|---|
| currencies | array | – | Only these currency codes, e.g. ["EUR","GBP","JPY"] (default: all of them). |
| end_date | string | – | End date, yyyy-mm-dd (give both dates or neither). |
| source | string | – | Source (base) currency code, default USD. Needs the Basic plan or higher; every quote is then SOURCE+TARGET, e.g. EURGBP. |
| start_date | string | – | Start date, yyyy-mm-dd (give both dates or neither). |
No output schema declared.
No examples provided.
currencylayer_get_timeframe_rates Get exchange rates for a date range ~217
SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Daily exchange rates for every date from start_date to end_date (at most 365 days apart), one entry per date. Needs the Enterprise plan or higher. The reply must stay small: days x currencies may not exceed 2000 (without 'currencies' that is 174 per day), checked before the request is sent. GET /timeframe.
| Name | Type | Req | Description |
|---|---|---|---|
| currencies | array | – | Only these currency codes, e.g. ["EUR","GBP","JPY"] (default: all of them). |
| end_date | string | yes | Last date, yyyy-mm-dd (not before start_date, at most 365 days after it). |
| source | string | – | Source (base) currency code, default USD. Needs the Basic plan or higher; every quote is then SOURCE+TARGET, e.g. EURGBP. |
| start_date | string | yes | First date, yyyy-mm-dd. |
No output schema declared.
No examples provided.
How do I install the currencylayer MCP by usefulapi server?
currencylayer MCP by usefulapi is a hosted endpoint at https://currencylayer.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · currencylayer.usefulapi.io
claude mcp add --transport http io-usefulapi-currencylayer 'https://currencylayer.usefulapi.io/mcp'
What is the currencylayer MCP by usefulapi server?
currencylayer MCP by usefulapi is listed in the public MCP registry as io.usefulapi/currencylayer. Read and calculate currency exchange rates with your paid currencylayer account. This page covers its hosted endpoint (https://currencylayer.usefulapi.io/mcp).
Is the currencylayer MCP by usefulapi server safe to use?
currencylayer MCP by usefulapi scores 18 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the currencylayer MCP by usefulapi server expose?
currencylayer MCP by usefulapi exposes 5 tools: currencylayer_get_live_rates, currencylayer_get_historical_rates, currencylayer_convert_currency, currencylayer_get_timeframe_rates, currencylayer_get_rate_changes. Their descriptions and schemas cost roughly 950 tokens of context every time the server is loaded.
Does the currencylayer MCP by usefulapi server require authentication?
Its publisher declares no required credentials for currencylayer MCP by usefulapi. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the currencylayer MCP by usefulapi server still maintained?
currencylayer MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.