the402 x402 endpoint directory

Fusion anti-abuse risk score for an email and/or IP in one call. Combines domain-level email intelligence (MX, SPF, DM

Profile a federal contractor's spending footprint by name or UEI in one call: total federal dollars, top agencies, top

Search US federal bills by keyword (optionally within one Congress) and get a ranked list of matching bills with id, t

Cited time-series for a single financial line-item from SEC EDGAR XBRL. Give a ticker or CIK plus a concept (a canonic

Static security scan of an MCP manifest or tool list. Detects tool poisoning, hidden unicode instructions, prompt inje

Recent DEX swap history + buy/sell flow for a token or pool on Base: per-swap trader/side/amount/price plus a summary

Look up a transaction by hash on Base, Ethereum, Arbitrum, Optimism, Polygon or BNB (default Base): from/to/value/nonc

Search the scholarly literature by keyword or topic and get a ranked list of works with core metadata. Optional filter

Tournament fixtures, filterable by team, opponent, and date range.

Giveaways already announced but not yet claimable, with the exact date each becomes free and what it normally costs. F

The same as paid-ping, plus how long verification and settlement actually took, measured server-side. For choosing you

Sanctions screening (AML/KYC) against three official lists in one call: EU (Commission FSF), UN Security Council and U

Cross-store pricing for a single game — Steam, Epic, GOG and Microsoft Store side by side — with the lowest price ever

Highest-yield DeFi pools across all chains and protocols, filterable by token and chain, TVL-filtered to exclude dust,

Deep contract inspection on any Blockscout-hosted chain (dozens: Ethereum, Base, Polygon, Optimism, Arbitrum, Celo, Gn

Cryptographically secure random string

Generate one or more RFC-4122 v4 UUIDs

Validate and pretty-print JSON

Convert a JSON object to XML

Convert a JSON array of objects to CSV

Convert a hex colour to RGB and HSL

Convert a timestamp between timezones and formats

Validate email address syntax (RFC-style)

Luhn checksum validation (credit cards, IMEI)

Word, character, sentence and line counts for text

Convert text to a URL-safe slug

Hex-encode a UTF-8 string

Decode a percent-encoded URL string

Percent-encode a string for use in a URL

Decode a Base64 string to UTF-8

Base64-encode a UTF-8 string

Minify JSON by stripping whitespace

Parse CSV text into a JSON array of objects

CRC32 checksum of a string

HMAC-SHA256 of a string with a secret key

MD5 hash of a string

SHA-512 hash of a string

SHA-256 hash of a string

Cheapest-model query: returns the lowest-cost AI models matching your constraints — min_context (tokens), vision/funct

LLM inference proxy ($0.01 fixed-price Base rail)

Get the list of Twitter/X users that a specific user follows. Returns up to 50 following profiles per page with pagina

Company register lookup from the official national registers: France (Annuaire des Entreprises), Norway (Brønnøysund),

Proxies JSON-RPC for several EVM chains through one endpoint.

Search US federal product recalls (CPSC consumer products, FDA food/drug/device enforcement, USDA FSIS meat/poultry re

VIN decode — Decode a US-market Vehicle Identification Number.

Bundled execution of the Domain age and legitimacy workflow - How old and legit is this domain? WHOIS registration, DN

Bundled execution of the Text hygiene workflow - Turn a wall of dirty text - chat logs, scraped pages, user-generated

Full decoded transaction on any Blockscout-hosted chain: status, from/to, value, gas, the decoded method + parameters,

Returns Chainlink native token prices with round metadata.

Top USD-pegged stablecoins by circulating market cap, live from DeFiLlama: current peg price with deviation from $1 (a