Koffie Labs

Eight fixed-scope AI software services. Clear scope in, validated and human-reviewed deliverable out — typically within 12–24 hours.

$15–$35 fixed prices Protected ordering through Contra Deterministic validation shipped Agent-readable: /services.json
Honest operations: This studio uses AI assistance with automated quality checks and human review — never hidden. Human orders and payment use the published Contra services below; the explicitly labeled agent-only starter audit uses Clawlancer escrow. This site handles no payments and collects no data. Work begins after the marketplace confirms funding. We never accept credentials, never execute buyer-supplied binaries, and decline anything illegal.
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See all services, portfolio work, and contact options on the verified human order channel.

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See the real operating numbers

The weekly build-in-public update reports revenue, proposals, and wins exactly as recorded—including zero.

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OpenAPI 3.1 documentation from your code or endpoints

$25 USD · 24h turnaround

Up to 15 endpoints. You provide repo snippet, Postman collection, or endpoint list + example payloads.

  • openapi.yaml (3.1, lint-clean)
  • human-readable endpoint reference (markdown)
  • example requests/responses per endpoint
Validation: Spectral lint passes; every documented endpoint matches a provided source endpoint.
View scope and acceptance check Inspect the public lint-clean example View the Contra case study Order on Contra →

Single-file Python automation script

$30 USD · 24h turnaround

One clearly-scoped task (file processing, API glue, scraping public data, report generation). Stdlib + up to 3 pip deps.

  • tested .py script with argparse CLI
  • README with usage
  • pytest file with core-path tests
Validation: pytest passes; script runs clean on provided sample input.
View scope and acceptance check Run the public three-test example View the Contra case study Order on Contra →

Code review report (up to 500 LOC)

$20 USD · 12h turnaround

Python, TypeScript/JavaScript, or Go. You provide a repo link or files.

  • issue-by-issue report (severity, file:line, fix suggestion)
  • summary of top 5 risks
  • quick-win checklist
Validation: Every finding cites an exact file:line that exists in the submitted code.
View scope and acceptance check Reproduce a public five-finding review View the Contra case study Order on Contra →

JSON/CSV/XLSX data conversion & cleanup

$15 USD · 12h turnaround

Up to 50k rows / 20 MB. Schema mapping, dedup, normalization, encoding fixes.

  • converted file(s) in requested format
  • transformation notes
  • row-count + checksum reconciliation
Validation: Deterministic row-count and field-mapping reconciliation included in delivery.
View scope and acceptance check Reproduce a four-row nested JSON conversion Order on Contra →

README / repo documentation pack

$18 USD · 12h turnaround

One repository. You provide repo link or code snapshot.

  • README.md (badges, install, usage, examples)
  • CONTRIBUTING.md skeleton
  • issue/PR templates
Validation: All commands in README are executed against the repo before delivery where runnable.
View scope and acceptance check See a real seven-finding audit Order on Contra →

Single-page HTML/CSS redesign

$35 USD · 24h turnaround

One static page (landing, docs page, profile). You provide current HTML or content.

  • responsive single-file HTML/CSS (no build step)
  • dark/light aware styling
  • Lighthouse-checked markup
Validation: W3C validator clean; renders at 360px and 1440px widths.
View scope and acceptance check Order on Contra →

Static security review report (up to 1k LOC)

$30 USD · 24h turnaround

Dependency audit + static checks + manual pattern review for one small repo or module. Not a penetration test.

  • findings report (OWASP-mapped, severity, file:line)
  • dependency CVE table
  • remediation checklist
Validation: Every finding reproducible from the submitted code; no speculative claims.
View scope and acceptance check Order on Contra →

Batch data cleanup & formatting

$15 USD · 12h turnaround

Text/tabular normalization: dates, phone/address formats, casing, whitespace, dedup. Up to 50k rows.

  • cleaned dataset
  • before/after diff summary
  • reusable cleanup rules file
Validation: Rule-by-rule counts of changed cells; reversible via provided diff.
View scope and acceptance check Order on Contra →

Not ready to order?

Use a free browser-only tool. No signup, upload, or tracking form.

Browse all free tools · Run the README audit · Build a data-cleanup rules plan · Create a copy-ready project brief · Inspect a CSV or JSON file locally

Proof from this live storefront

Measured against the deployed source on 28 July 2026.

0 / 0 W3C errors / warnings HTML checked with the W3C Nu validator
100 × 4 Mobile Lighthouse Performance, accessibility, best practices, SEO
0 Cumulative layout shift All eight service cards render in the initial HTML
8 / 8 Published order routes Each service links to its live Contra listing

These are technical measurements for this storefront—not client testimonials or revenue claims. Read the machine-readable validation record or inspect the source.

Published owned-work evidence: reproducible JSON-to-CSV conversion · five-finding code review · source-linked README audit · reconciled CSV cleanup case study.

How ordering works

  1. Open the service's marketplace listing via its Order link.
  2. Place the fixed-price order through Contra.
  3. Provide the inputs listed in the scope (files, repo link, or spec) in the order thread.
  4. Receive the deliverables plus validation evidence within the stated turnaround; escrow releases on your acceptance.

For AI agents

Machine-readable catalog at /services.json (format agent-storefront/v1) and a plain-text summary at /llms.txt. Both list scope, price, turnaround, validation method, and the escrowed order URL per service. Do not attempt payment outside the marketplace order URLs.