the402 x402 endpoint directory

Is this Solana wallet a bundler? Single-wallet bundler and private-routing evidence check. Detects whether one wallet

Search tweets, X-API-style raw shape. Body: {"q":"x402","sort":"Latest","limit":20} - the param is q, not query

Verify whether a Brazilian company is a financial institution authorized by the Central Bank of Brazil (banks, credit

Physics ODE solver (SciPy): coupled ODE systems from parameterized templates (orbital 2-body, oscillator, pendulum, he

Token risk score API: deterministic 0-100 rug-check for ERC-20s on Ethereum, Base, Polygon, Arbitrum, Optimism, BSC, a

DNS lookup API: resolve any DNS record via Cloudflare's 1.1.1.1 DNS-over-HTTPS resolver with DNSSEC validation status.

Domain WHOIS/RDAP lookup API: registration data for any domain from the authoritative registry's RDAP server, normaliz

Full KYB profile of a Brazilian company in ONE call — the enrichment bundle: official registration from the Receita Fe

Sanctions and integrity screening for a Brazilian company (CNPJ) in ONE call, from official government registries upda

Pre-payment guard for x402 agents: free POST /v1/intel/preflight before spending, paid signed V6 trust receipt after.

Employer identity plus aggregate safety totals across SIR, ITA 300/301, and inspections.

Fetch a user profile by username or ID

Current Base mainnet gas prices. Slow, standard, fast in gwei.

Chainlink For Agents: submit a signed operation payload.

JSON Web Key (JWK) inspector — validate bounded public RSA, EC, or Ed25519 keys and calculate RFC 7638 SHA-256 thumbpr

File type and MIME/media type inspector — identify bounded content by magic bytes and return SHA-256, size, and extens

PKCS#10 certificate signing request (CSR) inspector — parse requested identities and public-key metadata, calculate a

X.509 TLS/SSL certificate inspector — parse fields and SANs, calculate a SHA-256 fingerprint, and check hostname and t

RRULE recurrence expander — generate bounded RFC 5545 iCalendar occurrences in IANA timezones with windows, work limit

Time interval merger — sort, deduplicate, and combine overlapping or adjacent RFC 3339 date-time ranges.

Cron next-run calculator — generate future times for bounded five-field POSIX cron schedules in IANA timezones with ex

Meeting availability intersection — find maximal common free time slots across participant calendars within a bounded

Keccak Merkle tree and proof builder — generate indexed sorted-pair inclusion proofs with domain separation and explic

CREATE2 deterministic contract address calculator — derive the EIP-1014 EVM deployment address, preimage, hashes, and

EVM address checksum and validation tool — normalize one Ethereum-compatible address and validate mixed-case EIP-55 in

Solidity ABI calldata encoder — encode canonical typed values for an EVM smart-contract function call, with an optiona

Strict Solidity ABI calldata decoder — decode canonical EVM smart-contract function calls or typed values, verify sele

Weighted interval scheduling solver — exact maximum-weight compatible job scheduling with half-open intervals and a co

Bin-packing heuristic — deterministic best-fit-decreasing capacity planning for placing items into bins, with feasibil

Assignment solver — exact minimum-cost worker-to-task matching for resource allocation, with deterministic choices and

Package vulnerability check — check one exact open-source dependency version or purl against OSV, enrich CVE matches w

Batch dependency vulnerability check — check ordered exact package versions in OSV with deduplicated CVE enrichment, e

Page through an Instagram account's posts by username — captions, like and comment counts, media type, video duration,

SEC company financials by ticker — normalized annual and quarterly revenue, income, balance-sheet, cash-flow and EPS f

SEC filings by ticker — recent 10-K, 10-Q and 8-K records with official filing and document URLs.

SEC company identity by ticker — CIK, SIC, exchanges, fiscal year end and former names from official EDGAR data.

Apple App Store reviews (path variant) — an app's user reviews by product_id in the URL: title, text, rating, version,

Apple App Store product details (path variant) — full profile for a single app by product_id in the URL: rating, price

CuseTheJuice agent email on Base USDC: create accounts, list and read email, send, reply, search, folders, attachments

Domain due-diligence report API: one call composes WHOIS/RDAP registration data, DNS records (A, MX, TXT), live email

Foreign exchange rate API: official ECB reference rate for any fiat currency pair (USD/EUR, GBP/JPY — ~30 major ISO 42

DeFi TVL API: current total value locked in USD for any DeFi protocol by DefiLlama slug ('aave', 'uniswap', 'lido' — f

Live cryptocurrency price API: current USD price for any coin by CoinGecko id ('bitcoin', 'ethereum') or DefiLlama id

Look up a country by ISO-2 code. Returns ISO codes, official name, capital, region, subregion, and calling codes.

Scheme, type, brand, issuer bank and country, and payout settings for a card BIN.

OptimAI Search: an agent-ready decentralized search API powered by OptimAI Network nodes. Ask a natural-language quest

Refresh a card's live balance and transactions from the issuer (rate-limited upstream: 1 per 5 min per card).

Debarment and exclusion screening, not just sanctions: 291,000+ parties on 11 authorities in one call. SAM.gov federal

Verify a Brazilian investment fund by CNPJ against the official CVM registry: is it registered, is it operating, who i

Every public contract won by a Brazilian company, from the official National Public Procurement Portal (PNCP): contrac