uk-legislation-api

uk-legislation-api is a skill for Claude Code, Codex from wentorai/research-plugins. It costs 18 tokens per session (1,904 once invoked), scanned A, original, MIT.

An API guide for accessing UK laws and statutory instruments from Legislation.gov.uk, the official online source for UK legislation.

In plain words
What is it for?
Use it to retrieve legislation, metadata, historical versions, amendments, and structured XML or HTML content.
Why use it?
It removes the need to manually search and parse legal texts or find older versions of laws.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit Use it to retrieve legislation, metadata, historical versions, amendments, and structured XML or HTML content.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wentorai/research-plugins/uk-legislation-api
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 wentorai/research-plugins --skill uk-legislation-api
Clone the repo
git clone --depth 1 https://github.com/wentorai/research-plugins

Made for: Claude Code, Codex.

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.

agentmods badge for uk-legislation-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/wentorai/research-plugins/uk-legislation-api/github.svg)](https://agentmods.dev/skills/wentorai/research-plugins/uk-legislation-api)
Your own site
<a href="https://agentmods.dev/skills/wentorai/research-plugins/uk-legislation-api"><img src="https://agentmods.dev/badge/skills/wentorai/research-plugins/uk-legislation-api/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.

agentmods 80×15 button for uk-legislation-api

Your own site · 80×15
<a href="https://agentmods.dev/skills/wentorai/research-plugins/uk-legislation-api"><img src="https://agentmods.dev/badge/skills/wentorai/research-plugins/uk-legislation-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,904 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00018 $0.01904
Opus 5 $0.00009 $0.00952
Sonnet 5 $0.00004 $0.00381
Haiku 4.5 $0.00002 $0.00190

Measured 8d ago against content hash bbc00a4ed8df, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

uk-legislation-api scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl "https://www.legislation.gov.uk/ukpga/2010/15/data.xml"
skills/domains/law/uk-legislation-api/SKILL.md · 180 lines

How it starts

The opening of the file, as written. The whole thing — 180 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UK Legislation API (legislation.gov.uk)

Overview

The Legislation.gov.uk API, maintained by The National Archives, provides open access to the full text of UK legislation from 1267 to the present day. The database covers over 100,000 items including Acts of Parliament, Statutory Instruments, Scottish and Welsh legislation, and Northern Ireland statutes. All data is available as structured XML with Dublin Core metadata, Atom feeds, and HTML. The API supports point-in-time versions showing how legislation read at any given date, plus amendment tracking.

Authentication

No authentication or API key is required. The API is fully open. Respect rate limits by adding reasonable delays between bulk requests.

URL Structure

All legislation follows the pattern:

https://www.legislation.gov.uk/{type}/{year}/{number}

Legislation Types

Type Code Description Example
ukpga UK Public General Act /ukpga/2010/15 (Equality Act 2010)
uksi UK Statutory Instrument /uksi/2020/1374
asp Act of Scottish Parliament /asp/2020/13
asc Act of Senedd Cymru (Wales) /asc/2021/4
nia Northern Ireland Act /nia/2022/2
ukla UK Local Act /ukla/2008/1
ukdsi UK Draft Statutory Instrument /ukdsi/2023/123
eur Retained EU Legislation /eur/2016/679 (GDPR)

Core Endpoints

Full Legislation Text (XML)

# Fetch the Equality Act 2010 — returns structured XML with Dublin Core metadata
curl "https://www.legislation.gov.uk/ukpga/2010/15/data.xml"
# Response: <Legislation DocumentURI="http://www.legislation.gov.uk/ukpga/2010/15"
#   NumberOfProvisions="564">
#   <dc:title>Equality Act 2010</dc:title>
#   <dc:description>An Act to make provision to require Ministers...</dc:description>

# Fetch Data Protection Act 2018
curl "https://www.legislation.gov.uk/ukpga/2018/12/data.xml"
# Response: <dc:title>Data Protection Act 2018</dc:title>
#   NumberOfProvisions="1181"

# Fetch a Statutory Instrument
curl "https://www.legislation.gov.uk/uksi/2020/1374/data.xml"
# Response: <dc:title>The Health Protection (Coronavirus, Restric...</dc:title>

Read the full file on GitHub · 180 lines

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.

  1. 8d ago First seen · 180 lines · 18 tokens per session scan A bbc00a4ed8df

Subscribe to this mod's changes

uk-legislation-api is a skill published in the GitHub repository wentorai/research-plugins (291 stars, last pushed 2mo ago), licensed MIT. It adds 18 tokens to every session and 1,904 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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