Lexiara — Terms of Service

Last updated / effective: 28 July 2026

1. Who we are and what this covers

Lexiara ("the Service") is an API and website providing access to legislative text and derived legal data (together, "the Data"), operated by **Taliara Limited**, a company registered in England and Wales (company number 17228820), registered office 167-169 Great Portland Street, London, W1W 5PF ("we", "us"). These terms govern all use of the Service — API, MCP server, and website. By requesting an API key or using the Service you agree to them. The Service is for business use. You confirm you are acting in the course of a business, not as a consumer.

2. The Service provides information, not legal advice

**The Service is a legal-information tool. Nothing it returns is legal advice, and no solicitor–client relationship is created by using it.** The Data is provided for research, engineering and internal-informational purposes. Decisions with legal consequences should be made on the advice of a qualified lawyer in the relevant jurisdiction, based on the official sources.

3. Authoritative and non-authoritative content

Every provision payload carries an authoritative flag and provenance metadata (source, retrieval date, licence, content hash).

• Content flagged authoritative is reproduced from the cited official publication. The official publication remains the only legally operative text; verify against it before relying on it.
• Content flagged non-authoritative (including machine translations) is a reading aid only.
• Derived data — transposition links, concept classifications, change detection — is our analytical output, not published by any legislature. It carries method and confidence metadata and may be wrong. Links not marked method='human' are unreviewed.

You must not remove, suppress or misrepresent the authoritative flag, notices, or provenance metadata when presenting Data to your own users, and any AI system you build on the Service must not present non-authoritative or derived Data as official text.

4. Source material, licences and our rights

The underlying legislative texts are used under the licences of their publishers, and your use of the Data must comply with them (see SOURCE-LICENCES.md, which forms part of these terms):

• UK legislation — © Crown copyright, Open Government Licence v3.0.
• EU law (EUR-Lex/CELLAR) and EuroVoc — © European Union, reused under Commission Decision 2011/833/EU.
• French legislation (Légifrance) — Licence Ouverte / Open Licence 2.0.

We claim no rights over the official texts. We do claim the rights that subsist in our own work: copyright in our software, documentation and editorial content, and the database right arising from our substantial investment in obtaining, verifying and presenting the contents of the Lexiara database. Nothing in these terms transfers those rights to you.

5. API keys and accounts

• Keys are personal to you (or your organisation). Keep them secret; you are responsible for use made under your key.
• We store only a hash of the key and cannot recover it.
• We may suspend or revoke keys for breach, non-payment, or abuse.

6. Acceptable use

You must not:

• exceed, evade or attempt to evade rate limits, quotas or metering;
• redistribute the Data in bulk, or offer a product whose substance is re-serving the Lexiara database, or a substantial part of it, as a database or dataset. Value-added use is welcome: your product may query the Service and present Data to your own users, provided provenance and authoritativeness metadata are preserved (§3) and your product adds its own substantial function beyond access to the Data;
• misrepresent Data as having been issued by, or your product as being endorsed by, any government, legislature or by us;
• use the Service unlawfully, or to generate content presented as legal advice to consumers without qualified human oversight.

7. Plans, fees and changes

Access is under the plan attached to your key (currently free, pro or enterprise), with the monthly quota and rate limits stated when the key is issued and reported in the API's rate-limit headers. Fees, where applicable, are as agreed at the point of purchase. We may change plans and pricing prospectively on at least 30 days' notice to key holders; changes never apply retrospectively.

8. Availability and changes to the Service

The Service is provided "as available". We refresh Data on a schedule but do not warrant that it is current, complete or error-free; coverage and freshness per source are reported by the /v1/coverage endpoint, and staleness there is disclosed rather than warranted against. We may modify or discontinue features with reasonable notice. We are not liable for delay or failure caused by events beyond our reasonable control (including failure of the official publication sources we ingest from), provided we take reasonable steps to resume performance.

9. Warranties and liability

1. Nothing in these terms excludes or limits liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any liability that cannot lawfully be excluded.
2. Subject to that, the Service and Data are provided **without warranty of any kind**, and all conditions, warranties and terms implied by statute or common law are excluded to the fullest extent permitted.
3. Subject to paragraph 1, we are not liable for: loss of profits, revenue, anticipated savings, goodwill or business opportunity; loss or corruption of data; or any indirect or consequential loss — in each case whether or not foreseeable.
4. Subject to paragraph 1, we are not liable for losses arising from reliance on the Data without verification against the cited official source, or from use of Data flagged non-authoritative, or derived data, contrary to §3.
5. Subject to paragraph 1, our total aggregate liability arising out of or in connection with the Service in any 12-month period is capped at **the fees you paid for the Service in that period**. (For keys on a free plan, that cap is zero.)
6. These terms do not limit your obligation to pay fees due.

10. Indemnity

You will indemnify us against losses, costs and expenses (including reasonable legal costs) arising from a third-party claim caused by: your breach of §3, §4 or §6; your product's presentation of the Data to its users; or use of the Service under your key in breach of these terms. This indemnity is not subject to the cap in §9.

11. Data protection

The Service stores account details (name, email), hashed credentials, and per-key usage metrics. We process them to operate, meter and secure the Service, and we do not sell personal data. Our privacy notice (to be published alongside these terms) gives the detail required by UK GDPR.

12. Termination

You may stop using the Service at any time. We may terminate for material breach with notice, or immediately for abuse. Clauses 2–4, 9, 10 and 13 survive termination, as do accrued rights.

13. General

• Entire agreement. These terms and the documents they reference are the entire agreement about the Service. You acknowledge you do not rely on any statement not set out in them; nothing in this clause limits liability for fraud.
• Assignment. You may not assign or transfer your rights under these terms without our written consent. We may assign to a member of our group or a purchaser of the business.
• Third-party rights. No one other than you and us has any right under the Contracts (Rights of Third Parties) Act 1999 to enforce these terms.
• Variation. Only as provided in §14; no other variation is effective unless in writing and agreed by us.
• Notices. We may notify you at the email address associated with your key; notice is effective when sent to that address.

14. Governing law and changes to these terms

These terms, and any non-contractual obligations arising out of them, are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction — save that we may enforce payment or intellectual-property rights in any court of competent jurisdiction. We may update these terms; material changes will be notified to key holders with at least 30 days' notice, and continued use after the notice period is acceptance.