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.
npx skills add apideck-libraries/api-skills --skill clearbooks-ukgit clone --depth 1 https://github.com/apideck-libraries/api-skillsWrote 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.
[](https://agentmods.dev/skills/apideck-libraries/api-skills/clearbooks-uk)<a href="https://agentmods.dev/skills/apideck-libraries/api-skills/clearbooks-uk"><img src="https://agentmods.dev/badge/skills/apideck-libraries/api-skills/clearbooks-uk/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.
<a href="https://agentmods.dev/skills/apideck-libraries/api-skills/clearbooks-uk"><img src="https://agentmods.dev/badge/skills/apideck-libraries/api-skills/clearbooks-uk.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00075 | $0.01985 |
| Opus 5 | $0.00037 | $0.00992 |
| Sonnet 5 | $0.00015 | $0.00397 |
| Haiku 4.5 | $0.00007 | $0.00198 |
Grade A, and why
clearbooks-uk 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://unify.apideck.com/proxy' \ How it starts
The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Clear Books (via Apideck)
Access Clear Books through Apideck's Accounting unified API — one of 34 Accounting connectors that share the same method surface. Code you write here ports to Access Financials, Acumatica, banqUP and 30 other Accounting connectors by changing a single serviceId string. Apideck handles auth, pagination, rate limiting, and retries so you don't write per-tenant Clear Books plumbing.
Beta connector. Clear Books is currently in beta on Apideck. Expect partial resource coverage and occasional mapping gaps. Always verify coverage (see below) and fall back to the Proxy API for unsupported operations.
Quick facts
- Apideck serviceId:
clearbooks-uk - Unified API: Accounting
- Auth type: apiKey
- Status: beta
- Gotchas: page
- Clear Books docs: https://www.clearbooks.co.uk/support/api/
- Homepage: https://www.clearbooks.co.uk/
At a glance
- Implementation difficulty: moderate — API access is granted by Clear Books on request; no self-service credentials.
- Vendor partnership required: no (developer portal) — No partner program — request access from Clear Books support.
- Apideck-managed credentials: Not available — each consumer supplies their own API key.
- Account type required: An active Clear Books account.
- Consumer access level: Permission to create an API key in Clear Books.
- Sandbox: not available — A free Clear Books trial account serves for testing.
- Costs: No API fees published.
- Rate limits: No rate limits published; expect throttling on sustained load.
- Authentication: API key — the consumer's Clear Books SOAP API key; not OAuth.
- Webhooks: No webhooks — change detection is polling-based.
Important to know:
- Clear Books has discontinued the SOAP API this connector uses — no new applications will be approved for it. Existing API keys continue to work, but new integrations cannot obtain SOAP access; Clear Books now grants API access for its REST API instead.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 8d ago First seen · 174 lines · 75 tokens per session scan A 8929683dd409
clearbooks-uk is a skill published in the GitHub repository apideck-libraries/api-skills (3 stars, last pushed 9d ago), licensed Apache-2.0. It adds 75 tokens to every session and 1,985 once invoked, about $0.0004 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 2026-08-31.
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