the402 x402 endpoint directory

Circular direction of the dominant surface gradient, clockwise from north. The service evaluates a circular 1,000 metr

Circular direction of the dominant surface gradient, clockwise from north. The service evaluates a circular 250 metre

Circular direction of the dominant surface gradient, clockwise from north. The service evaluates the bounded polygon s

Maximum adjacent-cell surface gradient across the analysis grid. The service evaluates a circular 1,000 metre neighbor

Maximum adjacent-cell surface gradient across the analysis grid. The service evaluates a circular 250 metre neighborho

Maximum adjacent-cell surface gradient across the analysis grid. The service evaluates the bounded polygon supplied by

Mean first-order surface gradient across the analysis grid. The service evaluates a circular 1,000 metre neighborhood

Mean first-order surface gradient across the analysis grid. The service evaluates a circular 250 metre neighborhood ar

Mean first-order surface gradient across the analysis grid. The service evaluates the bounded polygon supplied by the

Bilinear surface elevation from Copernicus DEM GLO-30. The service evaluates a circular 1,000 metre neighborhood aroun

Bilinear surface elevation from Copernicus DEM GLO-30. The service evaluates a circular 250 metre neighborhood around

Bilinear surface elevation from Copernicus DEM GLO-30. The service evaluates the bounded polygon supplied by the calle

On-chain token price by contract address (DEX / DeFi). Given a chain (e.g. ethereum, base, bsc, polygon, arbitrum, sol

A task marketplace for agents. POST {spec, reward_credits} escrows the reward and lists the task; GET lists open bount

Verify whether delivered work satisfied explicit acceptance criteria. One call, pay per verification, no account. Retu

What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement bet

Repeat a saved X/Twitter search query to monitor a brand, topic, or phrase over time. Send the same query, language, a

Searches recent public X posts with author expansion and public metrics. Same backend as x-search, with exact tweet-se

Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).

Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).

Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).

Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).

Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).

Detailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).

Give a task and a budget; get the result, a measured verification signal, and an ML-DSA-65 signed receipt over the exa

Live gas oracle with slow, standard and fast fee tiers computed from recent block fee history - current base fee plus

Static misconfiguration scan of a SINGLE infrastructure resource or config snippet (Terraform, Kubernetes, Dockerfile,

Inspect an ERC20 token contract for buy/sell tax fields, owner renouncement and basic honeypot risk flags on EVM chain

One tokenized real-world asset by id (gold, nvidia, tesla, spy ...): identity, type, image and web slug joined with it

Bundled execution of the OpenAPI spec audit workflow - Lint an OpenAPI spec and validate a sample payload against it -

Bundled execution of the URL inspector workflow - Quick URL health and metadata check - parse the URL structure, verif

Bundled execution of the Loan comparison workflow - Compare two or more loan offers - different rates, terms, fees, pr

Bundled execution of the Schema guard workflow - Contract-test a JSON payload in one call: validate it against your sc

Bundled execution of the Markdown to HTML round-trip workflow - Markdown to HTML and back - a round-trip conversion th

Decode a 17-character VIN to manufacturer-supplied vehicle metadata via NHTSA's vPIC database. Returns identity (year,

Uploads an image to Twitter/X for the authenticated user and returns a media_id to attach to a tweet. Send the file as

What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement bet

Text-to-speech with speed (0.7x-2.0x) and quality-step (1-100) control, 1 of 10 standard voices across 31 languages, f

Fetch a URL and return link-preview metadata from Open Graph, Twitter Card and standard meta tags.

Fetch a URL and return its main article as clean HTML, Markdown and plain text.

Fetch a URL and pull out its machine-readable structured data: all JSON-LD blocks (schema.org), Open Graph and Twitter

Look up a Bitcoin transaction by txid: confirmation status, block height and time, fee (sats), effective fee rate (sat

Balance and activity for a Bitcoin address (base58 1…/3… or bech32 bc1…): confirmed balance (sats and BTC), total rece

Live snapshot of the Bitcoin mempool: number of unconfirmed transactions, total pending virtual size (bytes and MB), t

Live recommended Bitcoin transaction fee rates (in sat/vB) for next-block, ~30-minute, ~1-hour, economy and minimum co

Assess how trustworthy a domain is using authoritative live signals, not just its spelling. Fuses RDAP registration da

Top crypto news headlines (agent-optimized).

Convert latitude/longitude coordinates into the nearest structured address. Optionally set the preferred result langua

Convert a free-form address or place name into ranked coordinates with a structured, normalized address. Optionally bi

Fetch a Wikidata entity by Q-id: label, description, aliases and its claims (property → values).