the402 x402 endpoint directory

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Search US federal spending by keyword: contract awards (USAspending), open solicitations (SAM.gov), and grant funding

One letter of Kubla Khan, ownable once, ever; price rises with each sale. The letter index goes in the path: /api/poem

Search 1.2 million+ scholarly works by keyword across arXiv (700,000+ preprints, all categories, 2024 to 2026), CrossR

Edge-gap reconciliation first: measures how many of a Solana wallet's real transfer counterparties are missing from an

What is the on-chain forensic profile of this Solana wallet? Single-wallet evidence dossier API for agents that need o

Who funded this Solana wallet, and where did its funds come from? Cache-first funding-lineage evidence API returns kno

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

Brazilian regulatory risk & compliance screening of a company by CNPJ across 5 federal registries: debarment (CEIS), a

Seedance 2.0 — parametric text-to-video: choose duration (4-15s), resolution (480p/720p/1080p), ratio, seed, audio. Pr

Search US healthcare data by keyword: CMS NPPES NPI provider records, NLM RxNorm drug concepts, ClinicalTrials.gov stu

Full due-diligence profile of a Brazilian company: everything in the basic profile plus the complete quadro societário

Search economic indicators by keyword: Federal Reserve series (FRED), World Bank development data, US Treasury rates,

Dated public-holiday list for a country and year.

Search US federal regulations and rulemaking: the electronic Code of Federal Regulations, the Federal Register, congre

Search US consumer protection data by keyword: financial complaints (CFPB), vehicle recalls (NHTSA), product safety re

A tweet's edit history: the latest version plus every prior revision. Example: GET /api/jack/tweets/20/history

Accounts that retweeted a tweet (paginate with cursor until has_more is false). Example: GET /api/tweets/20/retweeters

Just the user's pinned tweet, if any. Example: GET /api/jack/pinned

A user's timeline filtered to tweets with media. Example: GET /api/jack/with_media

Chainlink For Agents: execute a catalog workflow by workflow name.

Fetch a Reddit post, subreddit, or user by ref

Real-time or 15-min delayed stock quote and share price for any US equity ticker — current price, open/high/low/close

Rug & honeypot scan for any Solana SPL token by mint. On-chain: mint/freeze authority renounced?, Token-2022 transfer

Search US environmental data by keyword: water quality and streamflow (USGS), weather, tides and space weather (NOAA),

Tweet search for a hashtag. Same as `/api/search?q=%23tag`. Example: GET /api/hashtag/typescript

Tweets that mention a user (paginate with cursor until has_more is false). Example: GET /api/jack/mentions

A user's timeline including their replies. Example: GET /api/jack/with_replies

Signal activity leaderboard over 7-365 days — per-signal trigger frequency, average confidence, assets triggered, and

Aggregate stats for a Solana token: price, market cap, volume windows, holder count, liquidity.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Transcribe speech to text — POST audio (base64) or audio URL; returns transcript billed by audio duration.

Update the profile (name/bio/location/url) of an X account you control.

Fetch live Amazon product detail (buybox + full offer listing + embedded top reviews) by ASIN

Generate an i402 plan from a natural-language intent. Returns a 402 response with a list of x402 calls the agent shoul

Solana Market intelligence (0.03 USDC on Solana mainnet)

Compare source-backed normalized fields for two to six Bitcoin services.

Search public x402 Bazaar resources for comparable paid endpoints and demand signals.

Recurring agent feed for what changed in x402 demand, why it matters, recommended action, confidence, and evidence bet

Offline decode of a Compras.gov.br 17-digit tender id (UASG + modality + number + year) into its parts, with the modal

Decode any Brazilian electronic invoice (NF-e/NFC-e) 44-digit access key: issuer CNPJ, state, emission date, invoice n

Chainlink For Agents: submit a signed operation payload.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

Query onchain DEX token price & market data based on the provided token contract addresses on a network.