Every agent-payable API.

Datoka Agent: one signed execution declaration receipt. Retry with the same event, idempotency key and payment.

DAX (Germany) spot index quote, delayed, via Yahoo Finance

RSMAD Day Pass, $10.00 USDC, from the Ryan Seslow Museum of Art and Design. Entry or download only: no licence to reproduce, redistribute or train on any work.

Return the ISO weekday (1=Monday..7=Sunday) and its name for a Gregorian date.

Return the ordinal day of the year (1..366), the number of days in that year and whether it is a leap year.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Per-day history for the license or charter Dutch auction: open price, floor, close price, and how much sold each day. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

Total value locked (USD) for one DeFi protocol by DefiLlama slug or name (e.g. "aave-v3", "lido", "uniswap-v3"): current TVL, per-chain TVL breakdown, 1h/1d/7d TVL change, category, chains, token symbol and market cap. Optional `chain` also returns that chain's TVL for the protocol. Unknown names return `found:false` with slug `suggestions`.

Full safety report for an ERC-20 token. Runs a live buy-then-sell honeypot and tax simulation against real DEX liquidity (Aerodrome, Uniswap V2/V3/V4), scans contract powers (upgradeable proxy, mint, pause, blacklist, fee-setting), resolves ownership and effective controllers, and cross-checks GoPlus and honeypot.is. Returns an A-F grade, tradeable flag, 0-100 risk score and evidence-carrying flags an agent can cite.

Contract-level risk scan for any EVM token: is the source verified, is it an upgradeable proxy and who is its admin, who owns it and has ownership been renounced, and which dangerous powers the bytecode exposes (mint, pause, blacklist, fee-setting). Returns the raw on-chain evidence, not just a score, so an agent can justify the decision it makes.

Focused honeypot check: a live buy-then-sell simulation against real DEX liquidity (Aerodrome, Uniswap V2/V3/V4). Tells an agent whether the token can actually be SOLD, the round-trip loss percent, and whether GoPlus or honeypot.is flag it too. Catches sell-blocking scam tokens, extreme sell taxes and no-liquidity traps before a buy is placed.

Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to query other services about a chain.

Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's growth or checking whether a TVL move is new or a return to trend.

DeFi market overview: total value locked (USD) across all chains, the chain count, and the top chains by TVL with each chain's TVL dominance. This is DeFi TVL — not total crypto market cap.

Protocols ranked by fees paid by users or by revenue kept, with 24h, 7d, 30d, 1y and all-time totals, change, category and chains, and chain-level gas fees on request. Use it when an agent is comparing protocols on real usage rather than TVL or valuing a token against the fees its protocol earns.

One DeFi protocol in full: TVL rank, TVL per chain, recent change, market cap to TVL, token, website, audits and parent, with name suggestions when the slug is unknown. Use it when an agent is researching a specific protocol and needs its size, footprint and audit status in one answer.

DeFi protocol risk score (0-100) with factor breakdown: TVL momentum, APY level, stablecoin exposure, pool concentration, oracle redundancy, contract age. Pay-per-call: 0.10 USDC on Base via x402. Source: DefiLlama (public data only).

DeFi protocols ranked by total value locked, filterable by category, chain or name, each with rank, chains, TVL, 1h, 1d and 7d change, market cap and the market cap to TVL ratio. Use it when an agent needs the league table of protocols or wants to find the largest lending, DEX or staking venues on a chain.

Daily APY and TVL history for one yield pool, up to ten years, with a summary of latest, minimum, maximum and mean APY and the TVL change over the window. Use it when an agent is judging whether a pool's current yield is typical or an outlier before allocating to it.

Live yield opportunities across DeFi, filterable by chain, protocol, token symbol, stablecoin-only, minimum TVL and minimum APY: pool identity, TVL in dollars, total APY split into base and reward, 1-day, 7-day and 30-day APY change, impermanent-loss risk and exposure type. Use it to find, compare or monitor where a given asset earns the most right now.

Cross-protocol risk-adjusted DeFi yield screener: ranked pools with honest base-vs-reward APY split, trap flags, and 0-10 risk overlay

Dead-man switch: a signed callback when your heartbeats stop

German calendar and business-day deadline calculator with public holidays per Bundesland

Calculates when a legal deadline ends in Germany (Fristende, due date) under §§ 187-193 BGB, the German Civil Code: event vs commencement start (§ 187), end by days/weeks/months/years including a missing day of month (§ 188), and postponement to the next working day when it falls on a Sunday, Saturday or public holiday (§ 193). With a federal state the statewide holidays are honoured, without one only Sunday/Saturday; that limit is stated. Returns an end date, not a count of working days.

Subscription review / cancel wasted subscriptions / cut recurring spend / cheaper plan alternatives. Reviews a list of active subscriptions (streaming, software, etc.), flags overlap and waste to cancel, and finds cheaper alternatives. For savings and personal-finance agents.

Price history / buy now or wait / is it a good deal / historical low for a product. Returns the price trend and lowest-ever context so agents can decide whether the current price is a real deal or worth waiting. For shopping and deal-hunting agents.

Coupon codes / promo codes / discount codes / store cashback for a store or restaurant. Returns real-time working coupon codes, current promotions, and cashback rates for any named retailer or restaurant worldwide. For shopping and deal-hunting agents.

Dealer (smart-money) 6-signal scan across A-shares — accumulation/breakout/big-order flow.

Propagates two caller-supplied Cartesian states with constant velocity, analytically finds the clamped time of closest approach, and compares miss distance with combined hard-body radius. It ignores gravity, covariance, maneuver uncertainty, tracking error, and nonlinear dynamics and is not an operational conjunction assessment.

Total US public debt outstanding, to the penny, latest available

Run a decision's plan through Agent402: first-party steps run directly, third-party steps are paid on your behalf (paid on Base, or by credits or card) and relayed at the seller's price plus a disclosed routing fee. Priced at the plan's budget (or your maxBudgetUsd, whichever you set) less a valid execution credit; spend stops at that budget, fallbacks are tried in order, and any unspent amount comes back as a credit. A run where no step succeeds is not charged.

Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against each tool's schema, and cost/latency estimates. Priced by depth: quick (one best tool), plan (steps + fallbacks), full (plan + params + compiled prompt). The fee comes back as a credit toward running the plan with POST /api/decide/execute.

Decimals of an ERC20 token — Genesis402 / UnyKorn Operator Network

Returns a perpetual-futures decision package for BTC, ETH, SOL, XRP, or ADA: direction LONG / SHORT / FLAT from the Kronos signal, stop-loss and take-profit on the calibrated 80% range, a leverage cap that keeps liquidation outside 2x the stop, liquidation price, risk-based position size for your equity and max loss, and live perp funding cost over the horizon — turns a bearish signal into a sized short instead of staying out. No exchange execution; market intelligence only.

Returns a perpetual-futures decision package for BTC, ETH, SOL, XRP, or ADA: direction LONG / SHORT / FLAT from the Kronos signal, stop-loss and take-profit on the calibrated 80% range, a leverage cap that keeps liquidation outside 2x the stop, liquidation price, risk-based position size for your equity and max loss, and live perp funding cost over the horizon — turns a bearish signal into a sized short instead of staying out. No exchange execution; market intelligence only.

Returns a perpetual-futures decision package for BTC, ETH, SOL, XRP, or ADA: direction LONG / SHORT / FLAT from the Kronos signal, stop-loss and take-profit on the calibrated 80% range, a leverage cap that keeps liquidation outside 2x the stop, liquidation price, risk-based position size for your equity and max loss, and live perp funding cost over the horizon — turns a bearish signal into a sized short instead of staying out. No exchange execution; market intelligence only.

Decision arbitration: submit context, options, constraints, and risk_tolerance; receive a structured JSON verdict with confidence score, reasoning, and escalation flag.

Decision verdict for prediction markets: probability, direction and multi-source evidence with declared sources. $0.05 USDC x402 Base.

Decode a JWT's header and claims — WITHOUT verifying it — Genesis402 / UnyKorn Operator Network

Decode a vehicle identification number (VIN) into make, model, model year, trim, body class, engine (cylinders, displacement, fuel, power), drive type, transmission and assembly plant, from the official NHTSA vPIC database. Query: ?vin=1HGCM82633A004352

Decode QR/barcodes from a base64-encoded image; returns each detected code's type, decoded text, bounding rect, and polygon.

Turn a 4-byte function selector or full calldata into its human-readable function signature, and (when calldata is present) the decoded argument values. Supply an `abi` for a fully deterministic offline decode, or omit it to look the selector up in public signature registries. Reads with automatic fallback.

Decode an XRPL 40-hex currency code to its ticker — Genesis402 / UnyKorn Operator Network

Decode and optionally verify a JWS-compact JWT. JSON: token, optional secret (HS256/384/512; secret_encoding utf8 or base64) or public_key PEM (RS/PS/ES 256/384/512), now (unix s), leeway_seconds (max 86400). Returns header, payload, claims (exp/nbf/iat ISO, expired, not_yet_valid), signature {checked,valid,reason}, valid, warnings. No JWE. Nothing stored. Max body 64 KB. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.

Decode base64 or base64url to bytes and text — Genesis402 / UnyKorn Operator Network

Decode and checksum-verify a bech32 or bech32m string — Genesis402 / UnyKorn Operator Network

Decode hex to text and other encodings — Genesis402 / UnyKorn Operator Network

Decode a MessagePack or CBOR byte stream (supplied as a base64/base64url/hex string) back into a JSON value. A malformed envelope, malformed bytes, or a value that is not JSON-representable is rejected before payment.

Decode international Morse code back into text. Letters are separated by whitespace and words by "/". Unknown Morse sequences are clean 400s.

Read the text out of a QR code or barcode in a PNG or JPEG image. Auto-detects QR, DataMatrix, PDF417, Aztec and 1D symbologies (Code128/39/93, EAN-13/8, UPC-A/E, ITF, Codabar). A valid image with no code returns { found: false }; a payload that is not a parseable image is a 400.

Decode a vehicle identification number to full structured specs: make, model, year, trim, body style, engine details, transmission, drive type, and manufacturing plant as clean JSON. Accepts full 17-char VINs or partials with * wildcards. For listing enrichment, insurance quoting, and vehicle-history agents.