ukintel.uk: UK company, tender and grant data as paid JSON for agents

UKintel has launched api.ukintel.uk, a paid JSON API that aggregates UK public registers—Companies House, FCA Register, Find a Tender, Contracts Finder, and GOV.UK Find a Grant—into eleven x402 endpoints for AI agents. The service charges per request in USDC on Base, eliminating the need for accounts or API keys, and claims to reduce costs by up to 6x on frontier models by returning concise structured verdicts instead of raw data.

UK public registers are free and public. Companies House, the FCA register, Find a Tender, Contracts Finder, GOV.UK Find a Grant. All of it is open data under the Open Government Licence, and none of it is usable by an AI agent without a human in the loop. Companies House needs an API key from a human dashboard. The FCA Register API needs a developer account and written permission. Find a Tender publishes an OCDS feed with no keyword search at all. GOV.UK Find a Grant has no API of any kind — it is HTML, and that is the whole interface. An agent that tries to do this itself either stops at a signup form or starts scraping. api.ukintel.uk is those five sources behind eleven x402 endpoints. Call it, get a 402 with payment terms, pay in USDC on Base, retry. No account, no API key, no rate-limit negotiation. This is the part worth checking rather than believing. An agent answering "is this UK supplier legitimate?" by browsing does roughly five page-loads — Companies House search, company profile, filing history, officers, FCA register — about 34,000 input tokens, plus ~2,500 tokens of tool-call overhead and ~2,500 output tokens of reasoning. On a mid-tier model at $2/M in and $10/M out, that is $0.098 per attempt . Apply a realistic 30% retry-and-blocked-page factor and it is ~$0.13 , taking 30–90 seconds. On a frontier model at $10/M and $50/M it is $0.49 per attempt, ~$0.64 with retries . GET /v1/company/{number}/verdict costs $0.10 and returns roughly 800 structured tokens. Reading them costs $0.0016–$0.008 depending on the model. Call it $0.102–$0.108, in about two seconds. So: modestly cheaper on a mid-tier model, roughly 6× cheaper on a frontier model , and in both cases the DIY route also burns ~36,000 tokens of context There is a sharper version of this. A raw Companies House filing-history JSON for a mid-sized company is about 60KB — around 15,000 tokens. Merely reading that free file costs $0.030 on a mid-tier model and $0.150 on a frontier model , every single time, before any thinking happens. The verdict endpoint That is the entire product thesis: sell fewer tokens that say more. Every endpoint returns the same envelope — query , result , verdict , confidence , as of , sources , attribution , notice , cost . Deterministic key order, explicit nulls rather than missing keys, no HTML anywhere, ~800 tokens by default with ?detail=full to lift the cap. as of is when we fetched the underlying data, never when you asked. Here is a real grant eligibility verdict, returned free from /v1/preview?wing=grants today — a live DfE school-based nursery capital grant against a showcase project profile: "verdict": { "score": 64, "band": "eligible", "flags": { "code": "MISSING DECLARATION", "detail": "net increase childcare places not declared; Proposed project will result in a net increase in the number of childcare places, accounting for existing provisions on site or nearby" }, { "code": "MISSING DECLARATION", "detail": "landowner permission not declared; Written permission from relevant freehold landowner to use land for nursery provision and carry out proposed works" }, { "code": "REVIEW REMAINING", "detail": "3 criteria cannot be auto-assessed OPERATIONAL BY SEPTEMBER 2030, PROJECT CLASSIFICATION, PREVIOUS GRANT ADDITIONALITY - review them against the source page." } , "rules version": "1.0.0" } Note what it does not do. It does not guess. score: 64 is not confidence in eligibility — it is the share of criteria affirmatively passed, with undeclared facts counting half and named in missing . Declare them and call again and the score firms up. A criterion nobody can auto-assess says so and points at the source page. The rules are published. Any hard criterion failing means ineligible , score 0, failing codes listed. No fails means eligible . Unparseable criteria means uncertain — never a fabricated verdict. A language model writes the optional two-sentence narrative field on company verdicts, the one-sentence emphasise note on top tender matches, and it performs a single text-to-criteria conversion once per grant at ingest time. It touches no score, on any endpoint, ever. Every 0–100 number comes from a deterministic rule table that ships in the docs, versioned, with each rule that fired named in the response. You can audit any score by hand, and you can disagree with a rule and re-weight it — the tender fit-score returns every factor's numerator and denominator so you can re-weight client-side without calling us again. This is a deliberate constraint, not a limitation we are apologising for. A score an agent cannot audit is a score an agent should not act on. | Endpoint | Price | What it answers | |---|---|---| GET /v1/company/search | $0.005 | Find a UK company by name | GET /v1/company/{number} | $0.02 | Structured profile, filing dates, officer counts | GET /v1/company/{number}/verdict | $0.10 | 0–100 legitimacy verdict, named flags | GET /v1/company/{number}/fca | $0.02 | FCA register status only | GET /v1/tenders/search | $0.05 | Live UK tenders as briefs | GET /v1/tenders/{ocid}/brief | $0.10 | One tender, full dossier | POST /v1/tenders/fit-score | $0.20 | Supplier profile → scored matches | GET /v1/grants/search | $0.10 | Live GOV.UK grant calls | POST /v1/grants/match | $0.15 | Project profile → eligible grants, ranked | GET /v1/grants/{id}/eligibility | $0.15 | One grant, one project, criteria table | GET /v1/funders/{name} | $0.20 | Funder giving history from 360Giving | Free, because frameworks probe before they route money: /v1/health , /v1/preview a real, freshly-computed sample in the exact paid shape, rotating daily — add ?wing=tenders or ?wing=grants , and /v1/feedback . Also available as an MCP server at https://api.ukintel.uk/mcp 13 tools, listed in the official MCP registry as uk.ukintel/ukintel . Companies House is fetched live, cached six hours per company number. Find a Tender and Contracts Finder are indexed on a six-hour cycle — 3,590 notices right now; an index older than twelve hours drops confidence to medium and raises an INGEST STALE flag rather than quietly serving old data. Find a Grant is a polite daily scrape — sequential, identified user-agent, robots.txt honoured every cycle, and if robots ever disallows us we stop and say so with a SCRAPE BLOCKED flag. Three things we would rather you heard from us than discovered: fca.checked: false , the financial-services rules are skipped, and no FCA claim is made. We never assert "not regulated" from a failed lookup, only from a successful lookup that found nothing. eligible PARTIAL CRITERIA and stays uncertain rather than being talked up, because those two fields are not the whole rulebook. result.criteria provenance.complete says which you got. Coverage is public rather than a number we are asking you to trust: GET /v1/health reports grants index.with criteria and grants index.awaiting criteria against grants index.grants today: 109 of 120 at full depth .CPV codes are null when the source release carries none. We report the register; we do not guess. Companies House, Find a Tender, Contracts Finder and Find a Grant are Open Government Licence v3.0, attributed in every response. 360Giving publisher datasets carry mixed open licences — the funder corpus aggregates 516 of 874 published datasets across 229 funders, CC-BY-SA datasets are excluded from the numbers entirely by policy, exclusions are counted in the response, and every recent-award row carries its own source licence. Dossiers describe the covered corpus, never the whole sector. Officer names and dates of birth are deliberately not returned. Officer counts and resignation churn are. curl https://api.ukintel.uk/v1/preview curl https://api.ukintel.uk/v1/preview?wing=tenders curl https://api.ukintel.uk/v1/preview?wing=grants Real data, freshly computed, rotating daily, in the exact shape the paid endpoints return. If you use Claude Code, one line connects all 13 tools: claude mcp add --transport http ukintel https://api.ukintel.uk/mcp Machine docs: /llms.txt · /openapi.json · /.well-known/x402 · /.well-known/agent-card.json · MCP at /mcp Something missing? POST /v1/feedback with {"message": "..."} is free, read by a human, and is the fastest way to get a field added. Or email hello@ukintel.uk . Information, not advice. These are public register facts and rules-based scores. A fit-score means fit, never "you will win". A grant eligibility verdict means the stated criteria pass, never "you will get this grant" — eligibility is not award, and the funder's assessment decides.