uk.co.hopi/hopi
REMOTE · MCP.HOPI.CO.UK
Free UK calculators, converters and validators (tax, VAT, stamp duty, dates, units), read-only.
Available components
Last scanned (3 hours ago)
Scores higher than 94% of remote servers
Reachable. Last reached 5 Nov 2026.
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 Security83
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability74
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 31465 tokens (~144/item across 218 items; 218 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 7 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "hopi_emoji_remover" implies "remove" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- An AI judge read all 219 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
- 5 Nov 26 0
- New tool “hopi_birthday_magic_square” functional
- New tool “hopi_captcha_embed_code_generator” functional
- New tool “hopi_collatz_conjecture_calculator” functional
- New tool “hopi_honeypot_field_generator” functional
- New tool “hopi_invoice_generator” functional
- New tool “hopi_number_facts_finder” functional
- New tool “hopi_payment_link_button_generator” functional
- New tool “hopi_powerball_generator” functional
- New tool “hopi_same_calendar_year_finder” functional
- New tool “hopi_sequence_solver” functional
- 4 Nov 26 0
- New tool “hopi_birthday_magic_square” functional
- New tool “hopi_captcha_embed_code_generator” functional
- New tool “hopi_collatz_conjecture_calculator” functional
- New tool “hopi_honeypot_field_generator” functional
- New tool “hopi_invoice_generator” functional
- New tool “hopi_number_facts_finder” functional
- New tool “hopi_payment_link_button_generator” functional
- New tool “hopi_powerball_generator” functional
- New tool “hopi_same_calendar_year_finder” functional
- New tool “hopi_sequence_solver” functional
- 3 Nov 26 0
- New tool “hopi_birthday_magic_square” functional
- New tool “hopi_captcha_embed_code_generator” functional
- New tool “hopi_collatz_conjecture_calculator” functional
- New tool “hopi_honeypot_field_generator” functional
- New tool “hopi_invoice_generator” functional
- New tool “hopi_number_facts_finder” functional
- New tool “hopi_payment_link_button_generator” functional
- New tool “hopi_powerball_generator” functional
- New tool “hopi_same_calendar_year_finder” functional
- New tool “hopi_sequence_solver” functional
- 2 Nov 26 0
- Schema quality: 28185 → 31465 ▼ functional
- New tool “hopi_birthday_magic_square” functional
- New tool “hopi_captcha_embed_code_generator” functional
- New tool “hopi_collatz_conjecture_calculator” functional
- New tool “hopi_honeypot_field_generator” functional
- New tool “hopi_invoice_generator” functional
- New tool “hopi_number_facts_finder” functional
- New tool “hopi_payment_link_button_generator” functional
- New tool “hopi_powerball_generator” functional
- New tool “hopi_same_calendar_year_finder” functional
- New tool “hopi_sequence_solver” functional
- 30 Oct 26 0
- Tool “hopi_add_working_days” rewrote its description, which is the text the model reads security
- Tool “hopi_inflation_calculator” rewrote its description, which is the text the model reads security
- Tool “hopi_redundancy_pay_calculator” rewrote its description, which is the text the model reads security
- Tool “hopi_user_agent_parser” rewrote its description, which is the text the model reads security
- Tool “hopi_working_days_calculator” rewrote its description, which is the text the model reads security
- New tool “hopi_inheritance_tax_calculator” functional
- 23 Oct 26 0
- Tool coverage: 95% → 100% ▲ functional
- Tool “hopi_email_header_analyser” now declares an output schema ▲ functional
- Tool “hopi_hidden_character_checker” now declares an output schema ▲ functional
- Tool “hopi_kg_to_lbs” now declares an output schema ▲ functional
- Tool “hopi_lbs_to_kg” now declares an output schema ▲ functional
- Tool “hopi_leak_tracer” now declares an output schema ▲ functional
- Tool “hopi_link_cleaner” now declares an output schema ▲ functional
- Tool “hopi_lookalike_domain_generator” now declares an output schema ▲ functional
- Tool “hopi_new_year_countdown” now declares an output schema ▲ functional
- Tool “hopi_set_for_life_generator” now declares an output schema ▲ functional
- Tool “hopi_stone_to_kg” now declares an output schema ▲ functional
- Tool “hopi_thunderball_generator” now declares an output schema ▲ functional
- New tool “hopi_ai_prompt_builder” functional
- 20 Oct 26 0
- Stability: 0.97 → pass security
- 19 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
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://mcp.hopi.co.uk/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=hopi.co.uk | CN=WE1,O=Google Trust Services,C=US | 20 Sept 2026 | 19 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 912580c47e89db010eff3f172d717c60 |
| SANs: hopi.co.uk, mcp.hopi.co.uk, *.mcp.hopi.co.uk | ||||||
| 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 secure
Validation of mcp.hopi.co.uk. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| uk. | present | 43876 | 8 | Verified |
| co.uk. | present | 11810 | 8 | Verified |
| hopi.co.uk. | present | 2371 | 13 | Verified |
| mcp.hopi.co.uk. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| content-security-policy | default-src 'none'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.hopi.co.uk/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.hopi.co.uk/mcp | HTTPS enforced | 301 | https://mcp.hopi.co.uk/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 →
hopi_add_working_days ~160
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| bankHolidays | boolean | – | – |
| days | integer | yes | – |
| direction | string | – | – |
| start | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| bankHolidays | boolean | – | – |
| complete | boolean | – | – |
| days | number | – | – |
| daysSpanned | number | – | – |
| direction | string | – | – |
| holidayCoverage | object | – | – |
| holidaysSkipped | number | – | – |
| result | string | – | – |
| resultLong | string | – | – |
| source_url | string | yes | – |
| start | string | – | – |
| summary | string | yes | – |
| warnings | array | – | – |
| weekday | string | – | – |
No examples provided.
hopi_age_calculator ~115
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| asOf | string | – | – |
| dob | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| asOf | string | – | – |
| days | number | – | – |
| dob | string | – | – |
| months | number | – | – |
| nextBirthdayInDays | number | – | – |
| nextBirthdayWeekday | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| totalDays | number | – | – |
| years | number | – | – |
No examples provided.
hopi_ai_prompt_builder ~551
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| askQuestions | boolean | – | – |
| aspectRatio | string | – | – |
| audience | string | – | – |
| avoid | string | – | – |
| composition | string | – | – |
| context | string | – | – |
| example | string | – | – |
| explainReasoning | boolean | – | – |
| format | string | – | – |
| language | string | – | – |
| length | string | – | – |
| lighting | string | – | – |
| material | string | – | – |
| role | string | – | – |
| style | string | – | – |
| target | string | – | – |
| task | string | yes | – |
| taskType | string | – | – |
| tone | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| checks | array | yes | – |
| missing | array | yes | – |
| prompt | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| target | string | yes | – |
| taskType | string | yes | – |
| tokensApprox | number | yes | – |
| vagueWords | array | yes | – |
| words | number | yes | – |
No examples provided.
hopi_alcohol_unit_calculator ~166
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| abv | number | yes | – |
| drinksPerWeek | number | – | – |
| ml | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| abv | number | yes | – |
| ml | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| units | number | yes | – |
No examples provided.
hopi_alphabetical_order ~132
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| caseInsensitive | boolean | – | – |
| direction | string | – | – |
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| caseInsensitive | boolean | yes | – |
| direction | string | yes | – |
| lines | number | yes | – |
| result | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_angle_converter ~87
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | – |
| to | string | yes | – |
| value | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | – |
| result | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| to | string | yes | – |
| value | number | yes | – |
No examples provided.
hopi_area_converter ~107
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | – |
| to | string | yes | – |
| value | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | – |
| result | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| to | string | yes | – |
| value | number | yes | – |
No examples provided.
hopi_aspect_ratio_calculator ~200
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| height | number | – | – |
| mode | string | yes | – |
| ratioH | number | – | – |
| ratioW | number | – | – |
| width | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| decimal | string | – | – |
| mode | string | yes | – |
| nearest | string | – | – |
| ratio | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_average_calculator ~103
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| count | number | yes | – |
| max | number | yes | – |
| mean | number | yes | – |
| median | number | yes | – |
| min | number | yes | – |
| mode | string | yes | – |
| modeValues | array|null | yes | – |
| source_url | string | yes | – |
| sum | number | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_base32_encoder ~148
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | – | – |
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| output | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_base64 ~103
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | yes | – |
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| input | string | yes | – |
| mode | string | yes | – |
| output | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_bill_splitter ~233
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| items | array | – | – |
| mode | string | yes | – |
| people | array | – | – |
| peopleCount | integer | – | – |
| servicePercent | number | – | – |
| tipPercent | number | – | – |
| total | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| grandTotal | number | yes | – |
| mode | string | yes | – |
| peopleCount | number | – | – |
| perPerson | number|object | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| tip | number | – | – |
| tipPercent | number | yes | – |
| total | number | – | – |
No examples provided.
hopi_bingo_card_generator ~116
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| cards | array | yes | – |
| count | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_birthday_magic_square ~327
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | – |
| numbers | array | – | – |
| order | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| builtInGroups | number | – | – |
| date | string | – | – |
| extraGroups | number | – | – |
| groups | array | – | – |
| hasNegative | boolean | – | – |
| hasRepeats | boolean | – | – |
| magicSum | number | – | – |
| numbers | array | – | – |
| order | string | – | – |
| source_url | string | yes | – |
| square | array | – | – |
| summary | string | yes | – |
No examples provided.
hopi_bitcoin_address_validator ~99
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| encoding | string | – | – |
| network | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| type | string | – | – |
| valid | boolean | yes | – |
No examples provided.
hopi_bmi_calculator ~165
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| heightCm | number | – | – |
| heightInches | number | – | – |
| units | string | yes | – |
| weightKg | number | – | – |
| weightPounds | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| bmi | number | yes | – |
| category | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| units | string | yes | – |
No examples provided.
hopi_body_fat_calculator ~236
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| height | number | yes | – |
| hip | number | – | – |
| neck | number | yes | – |
| sex | string | yes | – |
| units | string | yes | – |
| waist | number | yes | – |
| weight | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| bodyFatPercent | number | yes | – |
| category | string | yes | – |
| sex | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| units | string | yes | – |
No examples provided.
hopi_caesar_cipher ~140
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | – | – |
| shift | integer | yes | – |
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | yes | – |
| result | string | yes | – |
| shift | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_cagr_calculator ~106
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| end | number | yes | – |
| start | number | yes | – |
| years | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| cagrPercent | number | – | – |
| end | number | – | – |
| growthMultiple | number | – | – |
| shortPeriodWarning | boolean | – | – |
| source_url | string | yes | – |
| start | number | – | – |
| summary | string | yes | – |
| totalGrowthPercent | number | – | – |
| years | number | – | – |
No examples provided.
hopi_calories_to_kj ~123
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | – |
| unit | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| kcal | number | yes | – |
| kj | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_captcha_embed_code_generator ~512
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | – | – |
| language | string | – | – |
| provider | string | – | – |
| server | string | – | – |
| siteKey | string | – | – |
| size | string | – | – |
| theme | string | – | – |
| threshold | number | – | – |
| useTestKey | boolean | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| action | string|null | – | – |
| html | string | – | – |
| note | string | – | – |
| provider | string | – | – |
| providerName | string | – | – |
| secretEnvVar | string|null | – | – |
| server | string | – | – |
| serverCode | string|null | – | – |
| siteKey | string|null | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| testSecretKey | string|null | – | – |
| threshold | number|null | – | – |
| tokenField | string | – | – |
| usingTestKey | boolean | – | – |
| verifyUrl | string|null | – | – |
| warnings | array | – | – |
No examples provided.
hopi_case_converter ~91
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | yes | – |
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | yes | – |
| result | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_cat_age_calculator ~87
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| catAge | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| catAge | number | – | – |
| humanYears | number | – | – |
| source_url | string | yes | – |
| stage | string | – | – |
| summary | string | yes | – |
No examples provided.
hopi_celsius_to_fahrenheit ~91
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| direction | string | yes | – |
| value | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| celsius | number | yes | – |
| direction | string | yes | – |
| fahrenheit | number | yes | – |
| kelvin | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_character_counter ~74
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| characters | number | – | – |
| charactersNoSpaces | number | – | – |
| smsParts | number | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| tweetRemaining | number | – | – |
| words | number | – | – |
No examples provided.
hopi_cipher_identifier ~145
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| candidates | array | yes | – |
| chain | array | yes | – |
| plaintext | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_cm_to_feet ~123
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| cm | number | – | – |
| direction | string | yes | – |
| feet | number | – | – |
| inches | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| cm | number | yes | – |
| direction | string | yes | – |
| feet | number | yes | – |
| feetDecimal | number | – | – |
| inches | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| totalInches | number | – | – |
No examples provided.
hopi_cmyk_to_rgb ~226
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| b | integer | – | – |
| c | number | – | – |
| g | integer | – | – |
| k | number | – | – |
| m | number | – | – |
| mode | string | yes | – |
| r | integer | – | – |
| y | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | – | – |
| mode | string | yes | – |
| rgb | array | – | – |
| rgbString | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_coin_flip ~66
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| count | number | yes | – |
| heads | number | yes | – |
| results | array | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| tails | number | yes | – |
No examples provided.
hopi_collatz_conjecture_calculator ~224
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| n | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| evenSteps | number | – | – |
| n | string | – | – |
| oddSteps | number | – | – |
| path | array | – | – |
| pathTruncated | boolean | – | – |
| peak | string | – | – |
| peakStep | number | – | – |
| source_url | string | yes | – |
| steps | number | – | – |
| summary | string | yes | – |
No examples provided.
hopi_colour_name_finder ~78
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| distance | number | – | – |
| exact | boolean | – | – |
| input | string | – | – |
| name | string | – | – |
| names | array | – | – |
| nearestHex | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_colour_palette_generator ~104
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | yes | – |
| scheme | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| base | string | – | – |
| palette | array | – | – |
| scheme | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_colour_picker ~69
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | – | – |
| hsl | array | – | – |
| hslString | string | – | – |
| rgb | array | – | – |
| rgbString | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_colour_shades_generator ~87
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| base | string | – | – |
| shades | array | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| tints | array | – | – |
No examples provided.
hopi_combination_generator ~87
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| choose | integer | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| combinations | array | – | – |
| count | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| truncated | boolean | – | – |
No examples provided.
hopi_compound_interest_calculator ~136
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| monthly | number | – | – |
| principal | number | – | – |
| rate | number | yes | – |
| years | number | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| finalBalance | number | yes | – |
| interestEarned | number | yes | – |
| monthly | number | yes | – |
| months | number | yes | – |
| principal | number | yes | – |
| rate | number | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| totalPaidIn | number | yes | – |
| years | number | yes | – |
No examples provided.
hopi_contrast_checker ~105
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| background | string | yes | – |
| foreground | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| aaLarge | boolean | – | – |
| aaNormal | boolean | – | – |
| aaaLarge | boolean | – | – |
| aaaNormal | boolean | – | – |
| background | string | – | – |
| foreground | string | – | – |
| ratio | number | – | – |
| ratioString | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| verdict | string | – | – |
No examples provided.
hopi_cron_expression_parser ~110
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| expression | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| dayOfMonth | string | yes | – |
| dayOfWeek | string | yes | – |
| english | string | yes | – |
| expression | string | yes | – |
| hour | string | yes | – |
| minute | string | yes | – |
| month | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_crypto_profit_calculator ~146
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| buy | number | yes | – |
| fee | number | – | – |
| quantity | number | yes | – |
| sell | number | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| breakeven | number | yes | – |
| breakevenString | string | yes | – |
| profit | number | – | – |
| profitString | string | – | – |
| returnPercent | number | – | – |
| returnPercentString | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| totalFees | number | – | – |
| totalFeesString | string | – | – |
No examples provided.
hopi_css_gradient_generator ~125
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| angle | number | – | – |
| colour1 | string | yes | – |
| colour2 | string | yes | – |
| type | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| angle | number|null | yes | – |
| css | string | yes | – |
| gradient | string | yes | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| type | string | yes | – |
No examples provided.
hopi_css_minifier ~70
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| css | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| afterBytes | number | – | – |
| beforeBytes | number | – | – |
| css | string | – | – |
| savedBytes | number | – | – |
| savedPercent | number | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_csv_to_json ~115
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| csv | string | yes | – |
| firstRowHeaders | boolean | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| data | array | – | – |
| firstRowHeaders | boolean | – | – |
| json | string | – | – |
| rows | number | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_cups_to_grams ~100
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| cups | number | yes | – |
| ingredient | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| cups | number | – | – |
| grams | number | – | – |
| gramsPerCup | number | – | – |
| ingredient | string | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
No examples provided.
hopi_currency_converter ~121
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | – |
| from | string | yes | – |
| to | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | – | – |
| asOfUnix | number|null | – | – |
| complete | boolean | – | – |
| from | string | – | – |
| rate | number | – | – |
| rateAgeHours | – | – | – |
| result | number | – | – |
| source_url | string | yes | – |
| summary | string | yes | – |
| to | string | – | – |
| warnings | array | – | – |
No examples provided.
How do I install the uk.co.hopi/hopi MCP server?
uk.co.hopi/hopi is a hosted endpoint at https://mcp.hopi.co.uk/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 · mcp.hopi.co.uk
claude mcp add --transport http uk-co-hopi-hopi 'https://mcp.hopi.co.uk/mcp'
What is the uk.co.hopi/hopi MCP server?
uk.co.hopi/hopi is an MCP server listed in the public MCP registry as uk.co.hopi/hopi. Free UK calculators, converters and validators (tax, VAT, stamp duty, dates, units), read-only. This page covers its hosted endpoint (https://mcp.hopi.co.uk/mcp).
Is the uk.co.hopi/hopi MCP server safe to use?
uk.co.hopi/hopi scores 87 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.
Does the uk.co.hopi/hopi MCP server require authentication?
No. We connected to uk.co.hopi/hopi without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the uk.co.hopi/hopi MCP server still maintained?
uk.co.hopi/hopi 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.