All projects on Base matching “citation”

Verify an SEC filing: given a filer's CIK and a claimed accession number, does that filing actually exist, and does its form type/filing date match what's claimed? Checked against SEC EDGAR's submissions API. Catches a fabricated or misattributed filing citation, including a real-looking accession number paired with an invented form type or date.

Scientific and academic paper search: research papers and scholarly literature from arXiv, PubMed, OpenAlex, Crossref and Semantic Scholar in one call, deduplicated and retraction-aware. Each hit: DOI, authors, venue, snippet, citation count and citations per year, type, open-access PDF link. Sort by relevance, recency, citations or impact. Keyless. For literature review and citing research.

Verify up to 50 citations in one call, one flat price. Body: {"citations": ["<string>", ...]} - same shapes and verdicts as the single route. Returns results[] (one per citation), the verified/not_found/suspicious counts, verification_time_ms, hallucination_risk (LOW all verified, MEDIUM 1-2 not found, HIGH 3+). Deterministic, no LLM in the path. suspicious = a name_match mismatch: a DIFFERENT cas

Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyles

Bibliography verification for AI research agents — POST up to 20 citations (DOIs or free-text references) and get a per-reference verdict: exists/not-found, retracted/withdrawn (Crossref + Retraction Watch + OpenAlex), and title/author/year mismatches against a real record. Built for agents auditing LLM-generated bibliographies before a citation ships.

Address-to-zoning lookup for published municipalities. Coverage: 63 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code with lookup method. Positioning: Records tell you what's on file; ZoningVerdict tells you what the ordinance actually says, independently verified, with the citation. Responses include source citations a

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full author lists use POST. Every answer signed. Free sample, no payment required: GET /play/cite

One paper in full detail by DOI, arXiv id or OpenAlex id: all authors with institutions and ORCID, abstract, venue, open-access links, topics with fields, citation count and citations per year, references count.

Nursing-home quality verdict by facility name or CMS Certification Number (CCN). Returns CMS five-star ratings (overall, health inspection, staffing, quality measures), recent-cycle health deficiency citation counts including serious (harm / immediate jeopardy) citations, total fines and payment-denial days, and Special Focus Facility status. Source: CMS Provider Data Catalog (US federal public da

SERP-Extract Real-Time Search & Citation Grounding Node: Extracts live web search rankings, snippets, and grounding citations for autonomous agents.

Monitor a company or vendor for sanctions, SEC filing, legal-entity, and domain-registration changes. Compare current authoritative evidence with an earlier paid report or a supplied date and receive a structured, citation-first change summary with severity, timestamps, source URLs, confidence, and disclosed gaps. Designed for continuous vendor due diligence; it is not a legal or compliance determ

What are the symbol, name, decimals, contract address and issuer of this stablecoin on this chain? Cited stablecoin token facts from a prepared dataset (USDC, EURC, USDT, PYUSD, DAI on the chains /v1/chain covers, where a permissively licensed source lists them): symbol, name, decimals, contract address, chain, issuer, each with a source citation and license. Fields not established from a source a

Rail/coach/ferry/cruise compensation eligibility — UK Delay Repay, EU Rail 2021/782 (25/50%), EU/UK ferry 1177/2010, EU coach 181/2011, US FMC cruise refunds (46 CFR 540, 3-day rule), Athens Convention ship baggage — plus honest answers for VIA, Amtrak, India TDR, Japan JR. Deterministic percentages, article-level citations, claim-deadline math, operator defenses. No LLM.

Verify a claim or fact check a statement against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, content hash. Never charges when nothing is retrieved. Free to evaluate: the `sample` tool returns one real response at no cost, so you ca

Wage-recovery check — unpaid overtime (FLSA 1.5x + CA/AK/NV daily rules + Ontario 44h), minimum-wage shortfall vs effective-dated 2025/2026 state tables, final-paycheck deadlines & penalties (CA waiting-time, MA treble, NY 100%, IL 5%/mo, WA double), UK unlawful deductions (3-month tribunal window + ACAS route + NMW bands). Computed amounts with statutory-damages exposure, citations, deadline math

Deep verify. Use when a claim is high-stakes, or when Check answer or Extract claims marks it unsure (next_step). Checks it against Wikipedia, Wikidata, Google News, Europe PMC studies, FRED economic data and SEC EDGAR filings, and flags contradiction when sources disagree. Async: returns a job_id; poll GET /v1/jobs/{id} free for verdict, evidence for and against, citations. $0.75 USDC.

Call before publishing a claim that cites EU law. Checks that the cited instrument exists in our pinned corpus, that the cited article exists within it, and whether your quoted text actually appears in that article. Covers the AI Act, GDPR, NIS2, DORA and the Cyber Resilience Act. Returns the official article text with a EUR-Lex link. Citation verification only: it never gives legal advice or clas

Check whether a supplied public source supports or contradicts a factual claim. Validate citations in AI-generated answers against the supplied URL. TruthPal returns source-grounded evidence and a supported, contradicted, or uncertain verdict; when the source is insufficient, the result is uncertain. It assesses only the supplied source and does not independently corroborate the claim.

Flight compensation eligibility across 7 regimes — EU261, UK261, Canada APPR (incl. s.20 denied boarding), Brazil ANAC 400, Turkey SHY, India DGCA, Israel ASL — plus Montreal Convention baggage claims (effective-dated SDR caps, Art. 31 deadline math): deterministic amounts, legal citations, carrier defenses, evidence list. No LLM — every number is recomputable. Eligible? Get the ready-to-send clai

Citation-locked remittance document (Reg E Subpart B) — error notice with elected remedy and the provider's 90-day/3-day/1-day deadlines, the five-prong §1005.33(h) rebuttal to "you typed the wrong number" denials, or the 30-minute cancellation refund demand; California senders get the Fin. Code §2102 10-day-refund section. Fee-and-tax add-back computed for late/never-arrived transfers. Honest-no

Student-loan fix screen: routes a problem to the correct legal lane — federal false-certification or closed-school discharge (34 CFR 685.215/685.214, with the 180-day window math), PSLF reconsideration/buyback (685.219(g), 90-day window), or a California AB 376 servicer demand ($500/violation statutory floor, treble for forgiveness interference) — with verbatim citations, deadline math, documentat

Research an ecommerce store, online business, or ecommerce market using current public sources. Returns store analysis, categories, positioning, pricing patterns, offers, policies, competitors, market research, and citations.

Search Paul Graham's source corpus — a source-grounded persona of the Y Combinator co-founder and essayist, built from 13,000+ cited sources: his complete essays, talks, interviews, and X posts — by semantic + lexical query and retrieve grounded packets (graded claims, quotes, evidence with citations). POST a JSON body { query, limit? (<=100), packetTypes? }. Flat micro-price per query.

Verify a claim or fact check a statement against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, content hash. Never charges when nothing is retrieved. Free to evaluate: the `sample` tool returns one real response at no cost, so you ca

Citation-locked medical-bill letter: No Surprises Act balance-bill dispute, health-plan internal appeal, hospital financial-assistance cover letter, Medicare redetermination, or GFE dispute filing pack — deterministic eligibility + computed deadlines + a ready-to-send document. Honest-no: nothing sold on expired windows or unprotected scenarios.

URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens saved. Use before an agent summarizes, answers questions from, or cites a long or noisy URL. Deterministic and model-free. Public HTML only; no PDFs, logins, or JavaScript-only page

Grounded web search: question → answer + citations, powered by Bedrock Web Search.

BC Childcare Register: buy one current structured obligation record with original-source citations. Find a relevant ID first with free search at https://getregisters.com/api/v1/agent-search?feed_id=bc-childcare, then buy its agent_offer.url. Current full structured version at purchase; no history or future updates. Licence: https://getregisters.com/agent-licence.html

One-call web research for AI agents: it searches the live web, renders the top pages in a real browser and returns a grounded answer with numbered citations ({answer, sources: [{n, title, url}]}). max_pages sets how many pages it reads (1 to 3, default 3). Pay per call in USDC on Base with x402: no account and no API key.

Groups managed news feeds into events when an agent needs a compact news briefing. Supply topic, language, time window and result limit using the published schema. Returns headlines, a short abstract, first-report time, reporting-source counts and citations. Coverage is limited to the managed feed set; source count is not independent confirmation. Third-party article bodies are never returned.