Brazilian financial & crypto market news, refreshed every 15 minutes from major Brazilian outlets: headline, summary, link, topic (crypto, macro, fx, regulation, companies), investor sentiment and 0-10 market relevance. Brazil is a top-10 crypto adoption market: central bank moves, Drex (CBDC) and CVM regulation move prices. Filters: tema, sentimento, relevancia_min. Free sample, no payment: https://api.brazilayer.com/v1/mercado/amostra

Chess Daily answer check — legally validates a complete UCI principal line against the pinned daily puzzle.

Validate phone numbers: E.164 format, country detection, line type (mobile/landline/VOIP/toll-free), and risk score. Deterministic, sub-second. x402-native.

Critical-minerals supply-concentration & US import-reliance signal

Return BuiltWith technology detections and metadata for one domain. Useful for company research, stack analysis, competitive intelligence, and sales qualification.

Webpage text extraction: extract clean text from any webpage. Extract the clean readable text from a public webpage with title, headings, links and SHA-256; add format=markdown for Markdown or render=true to render JavaScript pages. Web read / fetch URL / scrape URL to markdown — public webpage to clean text or Markdown with headings, links and SHA-256, for RAG and research. Batch up to 10 URLs; optional JavaScript rendering (headless Chromium). $0.003 per URL Base ($0.006 Algorand).

On-chain x402 settlement summary for an address from the decentralized x402 Base subgraph on The Graph Network. POST {address}. Returns lifetime stats as payer + recipient (totalPayments, totalVolume, first/last seen), recent 10 payments each direction, facilitator metadata if applicable, plus indexed_through_block for freshness. Decentralized, verifiable. Distinct from /ask. $0.01 USDC on Base.

Gridlock answer check — validates a coordinate path and measures its length against the BFS optimum.

Identicon generator — turn an exact UTF-8 seed into a deterministic mirrored avatar returned as base64-encoded SVG or PNG in JSON.

Extract every hyperlink on a web page as structured JSON: resolved absolute URL, anchor text, internal-vs-external classification and nofollow flag, up to 2000 unique links. The building block for agent crawlers that need to decide where to go next, plus broken-link sweeps, backlink and SEO analysis, and site mapping.

Weighted interval scheduling solver — exact maximum-weight compatible job scheduling with half-open intervals and a complete dynamic-programming certificate.

Check whether a wallet is KYC-eligible for a gated (RWA / tokenized-treasury) yield. Returns the normalized KYC status and, when required, where to complete verification — call before actions_enter on gated yields.

Historical total-value-locked (TVL) for a yield over time — track inflows/outflows and protocol growth across 1d/7d/30d/90d/1y windows.

Build unsigned transactions to exit a DeFi yield position — unstake, withdraw from lending or vaults, or redeem RWAs — across 80+ networks. Supports instant and queued/cooldown redemption per protocol. Does NOT execute: the caller signs and broadcasts each tx. Check positions with yields_get_balances first.

Cancels adjacent identical self-inverse gates on identical ordered targets and folds adjacent RX, RY or RZ rotations on identical targets. It preserves only these local identities; it does not commute gates, model hardware topology, synthesize arbitrary unitaries or prove global optimality.

List past and pending actions for a wallet across all yields — filter by status, intent, type, yield, or network. Answers "what are my pending actions?" and finds actions awaiting a next step.

Multiplies the copper quantity by literature emission factors for the chosen secondary route and for primary cathode production, and reports the difference as low, typical and high. The factors are published life cycle averages and are stated in the response; they are not a certified product carbon footprint and are not a valid basis for a carbon credit, a customer declaration or an audited claim.

Solana token rug warnings for pump.fun tokens before buying: checks recent fees linked to known sniper clusters and whether the creator launched many tokens with few graduating. These advisory signals were evaluated on selected historical tokens; results may differ for new tokens. Returns RISK_FLAGS or NO_FLAGS; NO_FLAGS does not mean safe. Input: token mint (base58).

Validate and parse phone numbers in international E.164 form: extract the country calling code and region, the national number, and the canonical +E.164 string. Single number or a batch of up to 50. Format validation, not a line-in-service check. POST a JSON body like: {"phone":"+14155552671"}

Build unsigned transactions to enter any DeFi yield — native/liquid staking (ETH, SOL, ATOM), stablecoin lending (USDC/USDT on Aave, Morpho), ERC-4626 vaults, and tokenized RWAs across 80+ networks. Does NOT execute: the caller signs and broadcasts each tx, so keys never leave the caller. Find yield IDs via yields_get_all.