# Halal or Not

> Is it halal? Food, medicines, stocks, funds and crypto, with a verdict for each of the four schools.

- name: io.github.GoodTurnStudio/halalornot
- version: 1.1.0
- connection class: R0 (autonomous)
- trust: 89/100 flags: duplicate-repo
- quality: 86/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.GoodTurnStudio%2Fhalalornot
- tools: https://api.protogrid.dev/v1/servers/io.github.GoodTurnStudio%2Fhalalornot/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "halalornot": {
      "type": "http",
      "url": "https://goodturn-mcp.pages.dev/halalornot/mcp"
    }
  }
}
```


## Trust

- hygiene: 60
- liveness: 100
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% +updated-22d-ago -duplicate-repo(28 names)
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 86/100 (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: 100 (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`: 13 of 13 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 2,213 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`: 18 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: 13, about 2,213 tokens to load them all
- tool set hash: 49f58f60d3d5706533ed24624677816d
- tools last changed: 2026-09-29T03:15:01.889Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.GoodTurnStudio/halalornot.svg)](https://protogrid.dev/servers/io.github.GoodTurnStudio/halalornot)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-09-29 `list_rules` changed (annotations)
- 2026-09-29 `explain_schools` changed (annotations)
- 2026-09-29 `list_topics` changed (annotations)
- 2026-09-29 `get_prayer_times` changed (inputSchema, annotations)
- 2026-09-29 `check_medicine` changed (description, annotations)
  - before: Is this medicine halal?. Reads a medicine's active and inactive ingredients from its US label (openFDA) and flags gelatine, alcohol, pig-derived enzymes and heparin. The headline and say line lead with the ruling on necessity, so nobody stops a prescribed medicine; the ingredient reading follows (ingredient_headline, verdict)
  - after: Is this medicine halal? Reads a medicine's active and inactive ingredients from its US label (openFDA) and flags gelatine, alcohol, pig-derived enzymes and heparin. The headline and say line lead with the ruling on necessity, so nobody stops a prescribed medicine; the ingredient reading follows (ingredient_headline, verdict)
- 2026-09-29 `check_crypto` changed (description, annotations)
  - before: Is this cryptocurrency halal?. Classifies a coin by what it does (lending, gambling, meme, stablecoin, staking, general-purpose) and gives the scholarly views on crypto and on how it's used
  - after: Is this cryptocurrency halal? Classifies a coin by what it does (lending, gambling, meme, stablecoin, staking, general-purpose) and gives the scholarly views on crypto and on how it's used.
- 2026-09-29 `check_fund` changed (description, annotations)
  - before: Is this fund, ETF or pension fund halal?. Recognises Shariah funds by name or ticker. For other US-registered funds and ETFs, reads the latest SEC holdings report and screens every holding by industry and debt. UK-listed ETFs (VUSA, CSPX, VWRL, SWDA, EQQQ, ISF and others) and fund names (Vanguard S&P 500, FTSE 100 tracker, LifeStrategy) are answered through a US fund tracking the same index, or from what the index holds, with UK Shariah options
  - after: Is this fund, ETF or pension fund halal? Recognises Shariah funds by name or ticker. For other US-registered funds and ETFs, reads the latest SEC holdings report and screens every holding by industry and debt. UK-listed ETFs (VUSA, CSPX, VWRL, SWDA, EQQQ, ISF and others) and fund names (Vanguard S&P 500, FTSE 100 tracker, LifeStrategy) are answered through a US fund tracking the same index, or from what the index holds, with UK Shariah options.
- 2026-09-29 `ask_is_it_halal` changed (description, annotations)
  - before: Ask any 'is it halal' question. Covers money (savings, credit cards, mortgages, BNPL, insurance, pensions, trading), crypto, medicine, food and drink, and everyday life (music, dogs, tattoos, nail polish, smoking, games, photos, jobs). Returns the verdict, the main scholarly views and halal alternatives. Also recognises single ingredients and E-numbers
  - after: Ask any 'is it halal' question. Covers money (savings, credit cards, mortgages, BNPL, insurance, pensions, trading), crypto, medicine, food and drink, and everyday life (music, dogs, tattoos, nail polish, smoking, games, photos, jobs). Returns the verdict, the main scholarly views and halal alternatives. Also recognises single ingredients and E-numbers.
- 2026-09-29 `screen_stock` changed (description, annotations)
  - before: Is this stock halal?. Screens a US-listed stock via Mizan: first the business (each standard's excluded industries), then the AAOIFI, Dow Jones Islamic, S&P Shariah and MSCI Islamic debt screens. A company name also works (nvidia, philip morris). Links to halal alternatives in the same industry
  - after: Is this stock halal? Screens a US-listed stock via Mizan: first the business (each standard's excluded industries), then the AAOIFI, Dow Jones Islamic, S&P Shariah and MSCI Islamic debt screens. A company name also works (nvidia, philip morris). Links to halal alternatives in the same industry.
- 2026-09-29 `explain_ingredient` changed (description, annotations)
  - before: Explain one ingredient or E-number. For example 'E471', 'carmine', 'prawns', 'whey' or 'alcohol denat'. Returns the verdict for each school and the reasoning
  - after: Explain one ingredient or E-number. For example 'E471', 'carmine', 'prawns', 'whey' or 'alcohol denat'. Returns the verdict for each school and the reasoning.

Full history: https://api.protogrid.dev/v1/servers/io.github.GoodTurnStudio%2Fhalalornot/changes

## Remotes

- https://goodturn-mcp.pages.dev/halalornot/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (13)

- `ask_is_it_halal`: Ask any 'is it halal' question. Covers money (savings, credit cards, mortgages, BNPL, insurance, pensions, trading), crypto, medicine, food and drink, and everyday life (music, dogs, tattoos, nail polish, smoking, games, photos, jobs). Returns the verdict, the main scholarly views and halal alternatives. Also recognises single ingredients and E-numbers.
- `check_crypto`: Is this cryptocurrency halal? Classifies a coin by what it does (lending, gambling, meme, stablecoin, staking, general-purpose) and gives the scholarly views on crypto and on how it's used.
- `check_fund`: Is this fund, ETF or pension fund halal? Recognises Shariah funds by name or ticker. For other US-registered funds and ETFs, reads the latest SEC holdings report and screens every holding by industry and debt. UK-listed ETFs (VUSA, CSPX, VWRL, SWDA, EQQQ, ISF and others) and fund names (Vanguard S&P 500, FTSE 100 tracker, LifeStrategy) are answered through a US fund tracking the same index, or from what the index holds, with UK Shariah options.
- `check_ingredients`: Check an ingredients list. Takes the ingredients exactly as printed on the pack. Returns an overall verdict, a verdict for each school, and every flagged ingredient with the reason.
- `check_medicine`: Is this medicine halal? Reads a medicine's active and inactive ingredients from its US label (openFDA) and flags gelatine, alcohol, pig-derived enzymes and heparin. The headline and say line lead with the ruling on necessity, so nobody stops a prescribed medicine; the ingredient reading follows (ingredient_headline, verdict)
- `check_product_by_barcode`: Check a product by barcode. Looks the barcode up in Open Food Facts, then Open Beauty Facts, and checks its ingredients.
- `explain_ingredient`: Explain one ingredient or E-number. For example 'E471', 'carmine', 'prawns', 'whey' or 'alcohol denat'. Returns the verdict for each school and the reasoning.
- `explain_schools`: How the four schools differ on food. Answers 'is it halal?' for food, cosmetics, medicines, stocks, funds, crypto, money products and everyday life, showing where the four Sunni schools and the main scholarly bodies agree and where they differ, with the reasoning and halal alt...
- `get_prayer_times`: Today's prayer times for a place, with both Asr times and Ramadan suhoor and iftar. Answers 'is it halal?' for food, cosmetics, medicines, stocks, funds, crypto, money products and everyday life, showing where the four Sunni schools and the main scholarly bodies agree and where they differ, with the reasoning and halal alt...
- `list_rules`: The full rulebook. Answers 'is it halal?' for food, cosmetics, medicines, stocks, funds, crypto, money products and everyday life, showing where the four Sunni schools and the main scholarly bodies agree and where they differ, with the reasoning and halal alt...
- `list_topics`: Every question the rulebook covers. Answers 'is it halal?' for food, cosmetics, medicines, stocks, funds, crypto, money products and everyday life, showing where the four Sunni schools and the main scholarly bodies agree and where they differ, with the reasoning and halal alt...
- `screen_stock`: Is this stock halal? Screens a US-listed stock via Mizan: first the business (each standard's excluded industries), then the AAOIFI, Dow Jones Islamic, S&P Shariah and MSCI Islamic debt screens. A company name also works (nvidia, philip morris). Links to halal alternatives in the same industry.
- `search_products`: Find products by name and check them. Searches Open Food Facts by name or brand (for example 'Haribo Starmix') and returns up to five matches, each with a verdict, plus a 'say' line for the best match. Where a brand states the source of an ingredient its label leaves unnamed (Haribo: pork gelatine in its standard UK range), that statement decides it and is quoted in brand_statement.