Every agent-payable API.

Solve a bond's yield to maturity from its market price - the annual rate that present-values the coupons plus face to that price. Bracketed bisection root-find.

Bonk (BONK) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

Deepstate, the on-chain order-book exchange on Robinhood Chain. Order-book snapshot for a market, bids descending and asks ascending, with live resting size per level.

Look up full metadata for one indexed book by book_id: title, author, year, subjects, bookshelves, download rank, chunk count, and detected chapter range. Use book_id from /book-search or a category shelf. No license, no API key required.

Deterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and drill-down routes. No license, no API key required.

Book search (Open Library): titles, authors, first published, ISBNs — Genesis402 / UnyKorn Operator Network

Boolean AND of two coerced values. Call when you combine agent preflight gates. Returns AND result for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Boon recognized x402 endpoint directory

Boon x402 endpoint recognition graph

Try ProductClank's social amplification for $2 before committing to a full boost — the cheapest way to test community-driven growth marketing. Runs the exact same flow as the $20 boost, scaled to a single reply: 1 authentic AI-drafted reply posted on your post by a real community member. Works on X/Twitter, LinkedIn, Instagram, TikTok, Reddit, Farcaster, YouTube. Send the post URL; get back a campaign id and a public tracking URL. Ready for the full 10 replies? Use /api/x402/boost.

Boss phase planner: Create a multi-phase boss outline with readable telegraphs and transitions.

Mint a BotPay NFT on Base after an x402 USDC payment.

JSON-LD structured-data audit + rich-result eligibility for one URL.

Assignment solver — exact minimum-cost worker-to-task matching for resource allocation, with deterministic choices and a primal/dual optimality certificate.

Bin-packing heuristic — deterministic best-fit-decreasing capacity planning for placing items into bins, with feasibility evidence and an honest volume bound.

0/1 knapsack solver — exact work-bounded capacity planning and portfolio selection for maximum value, with deterministic ties and reproducible DP evidence.

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

Read contract event logs across a strictly bounded block range with an optional topic0 filter and capped response count.

Bounded accountless Base mainnet ERC-20 transfer and log search by address, direction, asset, counterparty and time window

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Wallets past their reportable dormancy window, ranked by the bounty an outside reporter could claim for flagging them. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

Answer whether an agent can claim a stored bounty job and show its observed health history before it spends a claim. Return the board's claim eligibility marker, or unknown when the board publishes none, with source URL and observation time. Also return observed states, transitions, submission and pass counts, reopen-after-accept events, observation count, and as_of. Coverage is BountyBook, Taskmarket, and Superteam. The paid answer adds stored history; it does not infer eligibility.

Answer: What funded open work is newly actionable across all watched bounty boards since my checkpoint? Return jobs that are open at the common board watermark and were first observed open after the cursor, plus jobs that changed from a non-open state to open after the cursor. Coverage is BountyBook, Taskmarket, and Superteam from owned SQLite observations. Open listing status and reward fields do not prove escrow funding. The route does not infer funding. No public source gives the same stored cross-board delta. Current listings are free from the three board APIs. The paid answer adds a common watermark, observation times, state changes, and one call across three boards. Live owned-store depth: 202990 observations over 2494 jobs from 2026-08-28T07:36:19.081141+00:00 to 2026-09-04T18:30:12.168056+00:00. Common coverage starts at 2026-08-28T07:36:19.081141+00:00. The current common cursor is 2026-09-04T18:30:12.168056+00:00.

Validate a fixed JSON CSV column specification before assigning extraction or checking deliveries. Send typed column settings in requirements; returns the validated spec for /v1/accept/csv. Rejects unknown fields and unsupported settings. This checks the specification itself, not CSV data. No custom expressions, cross-column rules or prose-to-rule conversion. Schemas/examples attached; full contract: /openapi.json.

Get a checked rational bracket for a degree 1-8 polynomial root. Bisect a sign-changing rational bracket for at most 64 iterations; return a certified bracket or exact rational root. No arbitrary code, all-roots or uniqueness claim.

Break a braille string into its cells and the raised-dot numbers (1–8) of each cell.

Transcribe a Unicode braille string back to text, honouring capital and number signs. Non-braille or unmapped cells are clean 400s.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to buy a Branch or license right now, bundled into one call.

Retrieve curated global aesthetic brand records including filler/toxin categories and governance metadata.

All of the above in a single response.

IPCA consumer inflation, latest month and 12-month accumulated.

Focus survey: median market forecasts for inflation, the Selic rate, the exchange rate and GDP growth, for the current and next calendar year.

CDI interbank rate, daily and annualized.

Official PTAX USD/BRL exchange rate, buy and sell.

Current Selic target rate set by the Brazilian central bank.

Every parameter-free endpoint of the Brazilayer catalog in ONE call, 43% cheaper than one by one: five commodity signals, three market feeds, fund flows and ranking, tax-transition calendar, deforestation ranking and open public tenders (13 endpoints, keyed by family and name). One payment, one response. Unavailable parts listed in `indisponiveis`; 503 and no charge if under half respond. Free sample, no payment: https://api.brazilayer.com/v1/pacotes/amostra

Does this CNPJ exist in the official Receita Federal registry, and is it active? Returns existence, registration status (situacao_cadastral: Ativa=active, Suspensa=suspended, Baixada=closed) with date, headquarters/branch flag and state. Cheapest paid check in the catalog: digit arithmetic alone cannot tell a well-formed number from a real, active company. Free sample, no payment: https://api.brazilayer.com/v1/cnpj/amostra

Causal chain for Brazilian capital flight pressure: the live premium paid for USDT over the official central-bank rate (leads perceived FX stress by hours to days) → where institutional money actually moved, net flows into fixed income versus equities across the R$ 13.8tn fund industry → the official PTAX rate. Two independent signals, one reading: are locals paying up for dollars while funds turn defensive? Free sample, no payment: https://api.brazilayer.com/v1/cadeias/amostra

Causal chain for arabica coffee: minimum temperature forecast 72h ahead over the southern Minas belt (frost is the event that historically moves KC hardest, operational threshold 3 °C) → consecutive dry days stressing flowering → observed rainfall → the official BRL/USD rate that converts the international price for the grower. Brazil is the top arabica exporter. Physical signal only — bring your own price. Free sample, no payment: https://api.brazilayer.com/v1/cadeias/amostra

Causal chain for Brazilian power risk: forecast rainfall over the Southeast/South (leads reservoir levels by ~2-4 weeks) → stored hydro energy per subsystem and its 7-day slope, from the grid operator → likelihood of thermal dispatch and cost pressure. Brazil runs on hydro: this is the upstream of industrial energy cost, and the rule and its limits travel in the response. Free sample, no payment: https://api.brazilayer.com/v1/cadeias/amostra

Causal chain for soybeans: consecutive dry days in the Mato Grosso belt (leads yield and shipped volume by months) → forecast rainfall in MT and the South → soybean volume actually exported last month from the official trade registry → year-over-year change. Brazil is the largest soybean exporter; this is the physical and trade side of global supply, not a price feed. Free sample, no payment: https://api.brazilayer.com/v1/cadeias/amostra

Daily fire hotspots across Brazil from the official INPE satellite program: count and mean intensity (FRP) by biome (Amazon, Cerrado, etc.) over the last 7 days, leading states, plus mean days-without-rain at fire locations — a drought proxy. Signal for ESG screening, carbon markets, cattle and soy supply-chain risk. Free sample, no payment: https://api.brazilayer.com/v1/commodities/amostra

Monthly Brazilian export volumes and FOB values for the commodities Brazil dominates: soybeans, corn, coffee, sugar, beef, chicken, cotton and pulp — from the official ComexStat registry, with year-over-year volume change per month. Brazil supply shifts move CBOT and ICE prices; this is the official record of what actually shipped. Free sample, no payment: https://api.brazilayer.com/v1/commodities/amostra

Brazil stored hydro energy (EAR) by grid subsystem, daily from the official grid operator (ONS), with 7-day delta. Brazil is hydro-dependent: reservoir levels drive power prices, aluminum/industrial costs and drought narratives. A compact energy-risk gauge for one of the world largest grids. Free sample, no payment: https://api.brazilayer.com/v1/commodities/amostra

All five Brazil commodity signals in ONE call, 47% cheaper than one by one: crop-weather stress per belt (coffee, soy, sugar, corn, orange, cocoa), fire hotspots by biome, monthly exports, reservoir energy and the daily English briefing. Same JSON as the single endpoints, keyed by name; unavailable components are listed in `indisponiveis` (503 and no charge if fewer than half respond). Free sample, no payment: https://api.brazilayer.com/v1/commodities/amostra

Deforestation profile of a Brazilian municipality by IBGE code, from the official INPE satellite alert system (DETER, Amazon and Cerrado): area cleared and alert count since 31 Dec 2020 — the EUDR cutoff date — plus 30/90/365-day windows, breakdown by class (clear-cut, degradation, mining) and rank among affected municipalities. The origin-risk layer for coffee, soy, beef, cocoa entering the EU. Free sample, no payment: https://api.brazilayer.com/v1/desmatamento/amostra

From a Brazilian company's CNPJ to the deforestation record of its municipality: registered address, then satellite-detected clearing in that municipality since the EUDR cutoff, with a risk level. Screens suppliers of EU-regulated commodities before the December 2026 deadline. Regional risk indicator to prioritise due diligence — the registered address is not the production plot, and the response says so. Free sample, no payment: https://api.brazilayer.com/v1/desmatamento/amostra

Where Brazilian deforestation is concentrated right now: rank municipalities or states by area cleared in a window you choose, filterable by biome (Amazon or Cerrado), from official INPE satellite alerts. Feeds ESG screening, carbon-project integrity checks and commodity-origin risk. Free sample, no payment: https://api.brazilayer.com/v1/desmatamento/amostra

Rank and screen Brazilian investment funds from official CVM data: largest by net assets, biggest net inflows over a window, or most shareholders — filterable by class (Renda Fixa, Ações, Multimercado, Cambial). Returns fund name, manager, administrator, NAV, assets and flows. Fund screening over the whole R$ 13.8tn industry. Free sample, no payment: https://api.brazilayer.com/v1/fundos/amostra

What Brazilian funds are buying and selling, stock by stock, from the official CVM portfolio disclosure (CDA): for the latest consolidated month, the amount bought and sold per ticker across all disclosing funds, and the net flow — the institutional "smart money" signal per Brazilian stock. Defaults to the most recent month with broad disclosure. Free sample, no payment: https://api.brazilayer.com/v1/fundos/amostra

A Brazilian fund's equity holdings from the official CVM portfolio disclosure (CDA): every stock/BDR it holds in its latest disclosed month — ticker, quantity, market value, and how much it bought and sold that month. Disclosure is per-fund and lagged up to 90 days by law; funds with no equities do not appear. Free sample, no payment: https://api.brazilayer.com/v1/fundos/amostra