the402 x402 endpoint directory

Recent per-block aggregation of Bittensor events: neuron_registrations, weight_sets, bond_sets, child_key_sets, stake_

Returns Kaspa mempool transaction count over time.

Kaspa BlockDAG topology snapshot: tips, sink, virtual chain, pruning point, blue scores. For DAG-state monitoring, sid

Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statem

Bulk Bitcoin block extract (max 144 blocks per call = $1.44 cap). Returns array of per-block summaries (height, time,

Returns the Bitcoin smart fee curve for different confirmation targets.

Bitcoin mempool pressure classification (low/medium/high/extreme) + fee buckets (0-1, 1-2, 2-5, 5-10, 10-20, 20-50, 50

Bitcoin own-node peer-network diversity (IPv4/IPv6/Tor/I2P/CJDNS distribution) + privacy share. AI agent API for priva

Hourly Bitcoin Ordinals inscriptions + OP_RETURN byte volume. Inscriptions detected via witness-envelope magic bytes (

Enrich a company from its domain name

Market-wide dividend calendar (no ticker needed). Per row: ticker, ex-dividend / record / pay / declaration dates, cas

Enrich a person profile from their email address

SEC 13F Institutional Holdings

8-K corporate events classified by item number with extractive summaries — Material corporate events from SEC 8-K fili

Federal contract awards from USAspending, normalized and filterable — Recent US federal contract awards (USAspending.g

Latest Department of Energy contract awards — Latest federal contract awards from Department of Energy: recipient, val

Second Opinion quick: an independent reasoning-only check (no web research) of your claim's logic and consistency with

On-chain Portfolio (USD-valued)

Search X/Twitter tweets by query. POST body: {query, limit}.

Biggest economics probability moves (1h/6h/24h) — The fastest way to see where news is landing in economics: active ma

Biggest climate and weather probability moves (1h/6h/24h) — The fastest way to see where news is landing in climate an

Markets with the largest probability moves over 1h/6h/24h windows — Active markets ranked by absolute blended-probabil

Anthropic's fastest model — affordable and quick for simple tasks and high throughput

Recent large ETH transfers with sender/receiver labels and entity classification. AI agent API for whale movement dete

Multi-source token due diligence — same aggregation as token-report (security checks, market data, liquidity analysis

EconDash economic data API (M2M)

Geolocate up to 20 IP addresses in one call

Extract structured JSON data from a PDF document.

EconDash economic data API (M2M)

EconDash economic data API (M2M)

SEC Insider Transactions (Form 4)

Compare open-web authority for 2 to 20 domains

🆕 The feasibility check before you ask a user for money: which fiat-in and cash-out rails Coinbase actually runs in a

Turn one PDF into structured JSON: header fields, tables as rows and columns, key value pairs and per page full text,

US House member trade disclosures as queryable JSON: purchases, sales, and exchanges of stocks, bonds, and funds repor

Politician stock trading tracker: disclosed securities transactions by US House members, filterable by name, ticker, t

Who in Congress traded a given stock: pass a ticker and get every disclosed House transaction in it — member, buy or s

Congressional stock trade disclosures parsed from official STOCK Act filings: every reported House trade with member,

Recent ON-CHAIN liquidations on Base Moonwell — the actual events plus a liquidator leaderboard (who's winning). Query

Positions liquidatable RIGHT NOW (health factor ≤ 1) across the fleet's chains/venues — the actionable subset of the d

Insolvency / bad-debt early-warning: positions liquidatable but NOT being liquidated (unsellable collateral or underwa

Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with

Live web search for AI agents. Pay $0.02 USDC on Base and receive a grounded answer plus sources.

Smart contract audit summary — verified source analysis, security flags, proxy detection, risk scoring 0-100. No AI ve

DeFi yield and protocol risk scan — TVL rankings and risk tier (A-D) per protocol, audit status. No AI verdict prose —

Comprehensive AI content analysis — sentiment scoring (-1.0 to 1.0), topic classification, named entity extraction, co

Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), met

Search flights via Google Flights (SerpApi). Returns best flights, prices, airlines, and price insights.

Today's full ranked CVE priorities (scores, KEV, EPSS, patch status, methodology)

x402 Barter — open a cashless trade. Pay only the flat call fee; your good is escrowed, not sold for USDC.