빌더와 AI 에이전트를 위한 API 플레이북
LLM 답변을 근거 짓고, 에이전트 워크플로를 만들고, AI 기능을 프로덕션에 보내는 데 필요한 튜토리얼·비교·사례.
Google Patents API Is Dead — 6 Alternatives for Prior-Art and Freedom-to-Operate Search
Google Patents Public Datasets retired without a documented replacement, and the USPTO migrated PEDS into a new Open Data Portal mid-2026, breaking pipelines on the way. Here's what actually works in 2026 for prior-art, FTO, and IP-research workloads — six alternatives, side by side.
How to Build a Scientific Literature-Review Agent Without Getting Rate-Limited
Build a literature-review agent on raw arXiv + PubMed + Semantic Scholar today and you'll hit 429s before you finish ten papers. Here's why the rate limits got worse, what PaperQA / Undermind actually do under the hood, and a working pattern that survives a real review session.
Polymarket vs Kalshi API: A Developer's Side-by-Side Guide (Auth, CLOB, WebSocket, Historical Data)
Polymarket and Kalshi run the same primitive — yes/no contracts on a CLOB — through completely different APIs. One demands EIP-712 signatures and a Polygon wallet; the other is a REST endpoint with optional FIX. If you're building a forecasting agent, an arbitrage bot, or a smart-money monitor, here's the side-by-side guide that should already exist.
Citation-Grounded UK Case Law Retrieval After Ayinde v Haringey
Ayinde v Haringey changed the calculus for UK legal AI overnight. A barrister cited five fake cases generated by an LLM and got referred to the Bar Standards Board. Hallucinated citations now have professional-conduct consequences. Here's the developer's guide to building citation-grounded UK case law retrieval — TNA Find Case Law, legislation.gov.uk, neutral-citation parsing, and how to wire it into a working agent.
Wiring ClinicalTrials.gov v2 + openFDA + ChEMBL into a License-Clean Drug Intelligence Endpoint
Pharma R&D, medical-AI startups, and pharmacovigilance teams all want the same thing: one endpoint that pulls trials, labels, adverse events, and bioactivity in a license-clean way. Here's the working architecture, with the trap doors that have surprised teams in production.
Build a Research Agent with Search + URL Extract (Claude tool use, end-to-end)
Most 'AI research agent' tutorials stop at 'here's a tool definition.' This one ships a working agent: question in, cited answer out. Search, extract, reason, cite — all under 120 lines of Python.
Building a Due-Diligence Agent on SEC Filings (10-K, 10-Q, 8-K, Earnings)
Reading a 10-K is mostly Ctrl+F. Doing it for fifty companies is a job. Replace the boring 80% with a search-and-extract agent against SEC EDGAR — keep the 20% that matters for the human analyst.
Why APIs Should Charge Only on Success — The Case for HTTP-200 Billing
Most APIs charge on every billable call. AI agents retry on flaky upstream services constantly — which means the legacy 'always charge' model effectively taxes resilience. Here's the case for billing only on HTTP 200, and what it changes about how you design agents.
Tavily / Exa / Serper / API Pick 비교: LLM용 웹 검색 API는 무엇을 고를까?
Tavily, Exa, Serper, API Pick은 모두 'LLM용 검색 레이어'를 자처한다. 출력 형식, 필터링, 과금 방식 차이는 의외로 크다. 현장에서 본 횡적 비교.
Firecrawl vs Jina Reader vs API Pick: URL 콘텐츠 추출 API 선택법
'에이전트가 URL 리스트를 읽고 요약하게' 만들어 본 사람은 다 URL 클린업 세금에 한 번씩 걸렸다. Firecrawl, Jina Reader, API Pick Extract의 해법은 다르다. 실전 비교.
OpenAI / Claude 에이전트에 실시간 웹 검색을 4단계로 추가하기
에이전트 답변을 최신 정보로 뒷받침하고 싶다면 두 가지가 필요하다: LLM 친화 스니펫을 반환하는 검색 API와 모델이 호출할 도구 정의. 이 가이드는 둘 다 4단계로 끝낸다.
News Search API로 모닝 브리핑 에이전트 만들기
창업자, PM, 애널리스트가 아침 8시에 원하는 건 같다: 어젯밤 무엇이 변했는지 깔끔한 요약. News Search API + LLM + cron이면 오후 한 번에 만든다.