Create a watchlist bound to the paying wallet (no account). Pass organizations (comma list, max 5), sector, country, actor, vendor, keywords. Returns watch_id for /watch/pull.

Verify whether a legal entity exists and is currently registered, from open primary registers: the GLEIF LEI index, US SEC EDGAR and the Australian Business Register (ABN, ACN, GST, status). Call it before naming a company in a contract, invoice or filing, or when you need an identifier (ABN, ACN, LEI, CIK) for a company you know only by name. Returns found, ambiguous, not_found or unknown, cited to the register with its retrieval time. A near name match is never reported as a match.

Prove what a web page showed: verify completed work, freeze evidence for a dispute, certify a page before you rely on it. Two independent observers on separate networks capture your URL at one frozen instant: byte-identical is CERTIFIED; disagreement is WITNESSED with pixel agreement and diff map. Signed manifest, RFC 3161 timestamp, permanent Arweave storage; ERC-721 certificate minted to the paying wallet. $1.00 fullpage, $0.50 viewport. Free claim polling. Rejects refund minus $0.10.

Audits canonical Base bridge and CCIP/LayerZero endpoints for message replay vulnerabilities, unbacked wrapped collateral, and admin multisig latency.

Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its advertised schema, and return an EIP-191-signed attestation embedding the on-chain USDC receipt. Proof-of-real-delivery for directories, reputation systems and sellers.

Composite medical-device risk card from a UDI device identifier (DI), brand, or labeler company. Returns the GUDID labeler record (brand, company, GMDN term, version/model, catalog number), MR-safety status, GUDID-cited premarket submission signal, a live openFDA recall cross-reference for the labeler, and an explainable risk level. FDA GUDID data (public domain).

Search parking lots worldwide by name, place, setting, facility, amenity and status, or find the nearest to a point: a page of up to 100 lots with live free spaces, hourly prices in USD and distances, and per-country totals; sorted and nearby results come in one page

List users who liked a specific tweet, returned as a paginated set of profiles.

Verify an SEC investment adviser by firm name or CRD number: registration status (SEC-registered / exempt reporting adviser), regulatory AUM and AUM band, Form ADV Item 11 disciplinary-disclosure flag, principal office state, and latest filing date. Public-domain SEC Form ADV data (Investment Adviser Information Reports, October 2026).

Check answer. Splits an AI answer into claims and checks each against Wikipedia, Wikidata and (for current claims) news. Returns per-claim verdict, confidence, quote, source URL and sentence, a source-quoted suggested_correction for wrong claims, and an answer summary with problem_sentences. $1.00 USDC.

Real working cryptographic microservice that issues, rotates, signs with, verifies, and revokes short-lived ephemeral session keys (secp256k1 EVM, Ed25519, HMAC-SHA256) with verifiable rotation chain attestation.

Newstex MCP Network: one page of metadata-only story search results.

Point-of-sale sales and units for ~380 US consumer companies, by ISIN or ticker, from transactions at eight US retailers: not government aggregates or SEC filings. Daily for the largest, weekly for all, from 2018, at T+7; each brand mapped to its owner at the time, history never restated. From $1 a request, priced per company-day. Free: sample (/v1/companies/{id}/sample), quote (/v1/quote), coverage (/v1/coverage). Docs: https://api.decadata.io/llms.txt

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.

New and existing business entities from four state registries (CO, OR, NY, CT) in one schema, filterable by state, formation date, city, county and entity type. Nightly refresh of each state's open-data file covering the last 400 days of formations; a `since` date returns only what is new.

Cross-exchange BTC/ETH/SOL perpetual funding rate skew, basis spread, and spot-futures arbitrage signals.

Multi-source web research and company/topic intelligence: runs a live web search, visits the top sources, and returns ranked results with titles, URLs, and content snippets. One call replaces a search-then-scrape pipeline for deep research agents.

Composed DAO governance translator. Takes a Snapshot or Tally proposal URL, fetches structured data + summary via /api/governance/summarize, then produces a 2-3 sentence plain-language translation + domain band (economic_param / treasury / code_upgrade / governance_meta / social_signal). 1-year cache — proposals are immutable.

Composed wallet risk verdict. Fans out to balance, wallet_risk, wallet_persona, contract_audit, privacy_mixer_risk and returns a Haiku 4.5-authored summary + confidence + band. One verdict replaces a manual 5-call audit walk.

Cryptographic prompt-safety + URL threat + token contract verification bundle for autonomous AI agent workflows.