eip155:4663
824 resources accept payment on this network.
Itemized fee breakdown and net P&L for any arbitrage trade — fees, sli
Itemized fee breakdown and net P&L for any arbitrage trade — fees, slippage and gas. For arbitrage and trading agents.
Macro snapshot — SPX, VIX, DXY, gold, BTC/ETH marks, Fear & Greed, Tre
Macro snapshot — SPX, VIX, DXY, gold, BTC/ETH marks, Fear & Greed, Treasury yields, central-bank calendar
Passive HTTP security header review for an authorized external target
Passive HTTP security header review for an authorized external target (no exploitation; platform hosts blocked)
Analyst consensus, price target + upside, and recent upgrades/downgrad
Analyst consensus, price target + upside, and recent upgrades/downgrades for a ticker (?symbol=)
Use when you have a company domain and need to know what the company i
Use when you have a company domain and need to know what the company is before spending more. Returns the company name and site title, domain age, registrar, mail provider, DNS provider, DMARC and HTTPS status, and a count of the third-party vendors detected. One call, no signup, no API key. The cheapest way to qualify a domain before buying a fuller record.
Use when you need a company's technology and vendor stack from its dom
Use when you need a company's technology and vendor stack from its domain alone. Returns every third-party service it runs on — the software and tools behind its mail, DNS, CDN, analytics, payments, support and hosting — each with the DNS record or loaded script that proves it, plus registration, certificate and site facts. Technographics and SaaS detection without a subscription.
Buy one call from an x402 seller endpoint right now and report exactly
Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable), whether a stock client's signed payment was accepted, the settlement receipt and transaction, a slice of the response body, and the time each leg took. Ends in plain-English flags, never a score.
Latest casts in one or more Farcaster channels (e
Latest casts in one or more Farcaster channels (e.g. base, farcaster, ethereum), newest first, with optional replies. Compact cast shape with author, reactions, reply count and embed URLs. Cached 60 s per identical request. Use to watch a community, sample what builders are posting, or feed a digest.
A Farcaster user's recent casts by fid or username, newest first, opti
A Farcaster user's recent casts by fid or username, newest first, optionally including replies or limited to one channel. Compact cast shape with reactions, reply count and embed URLs. Use to read what a founder, builder or KOL has been posting, or to build a per-account timeline.
Deterministic preflight check for a proposed AI agent action - a tool
Deterministic preflight check for a proposed AI agent action - a tool call, payment, fetch, or write - before it executes. Evaluates up to four independent checks (prompt-injection scan on action text/untrusted text, URL/hostname validation, a bounded JSON-schema check on a payload, and a spend proposal against a spend mandate) and returns ALLOW, REVIEW, or BLOCK with stable reason codes plus a SHA-256 request/receipt hash pair.
Current effective federal funds rate plus a trailing N-day series
Current effective federal funds rate plus a trailing N-day series. Source: FRED DFF (Board of Governors). ?days=30 (1-365, default 30).
Latest average interest rates the US Treasury is paying by security ty
Latest average interest rates the US Treasury is paying by security type (Bills, Notes, Bonds, TIPS, FRNs, marketable vs non-marketable). Public domain, no key. No params - returns the most recent reporting month.
Global crypto market snapshot: total market cap, total 24h volume, BTC
Global crypto market snapshot: total market cap, total 24h volume, BTC dominance, ETH dominance, active coin count, active exchange count, and 24h market-cap change %. Returned in a chosen vs_currency (default usd). Backed by CoinGecko /global.
The table + column schema for the onchain-sql tool - every queryable t
The table + column schema for the onchain-sql tool - every queryable table (base.events, base.transactions, base.blocks, base.decoded_user_operations, base.transaction_attributions, solana.instructions, …) with its columns and types. Fetch once, then write SQL with confidence.
Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week -
Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week - optionally rendered in any IANA timezone via ?tz=.
Tamper-evident history of every change to a namespace - an append-only
Tamper-evident history of every change to a namespace - an append-only, hash-chained audit log the server attests to (provenance an agent can't forge for itself). ?owner=0x… reads a granted namespace.
Trending coins on CoinGecko in the last 24 hours, ranked by user searc
Trending coins on CoinGecko in the last 24 hours, ranked by user search activity on the site (currently ~15 results). Includes coin id, symbol, market cap rank, current price (BTC-denominated), and score. Useful signal for detecting narrative shifts before they hit price charts.
Most recent total US public debt outstanding (the headline national-de
Most recent total US public debt outstanding (the headline national-debt number, daily) from the Treasury "Debt to the Penny" feed. Public domain, no key. No params.
Header-level detail for one block on Ethereum, Base, Polygon, Arbitrum
Header-level detail for one block on Ethereum, Base, Polygon, Arbitrum, or Optimism: hash, timestamp (unix + ISO), transaction count, gas used/limit, base fee. Pass a block number, 0x hex, or "latest". Keyless multi-endpoint failover. ?block=latest&network=base
Current gas price (gwei and wei) on Base, Polygon, Arbitrum, Optimism,
Current gas price (gwei and wei) on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, or Robinhood Chain - for an agent budgeting a transaction. Read-only. ?network=base
One-call chain state snapshot: chain id, latest block number, and curr
One-call chain state snapshot: chain id, latest block number, and current gas price (wei + gwei) for Ethereum, Base, Polygon, Arbitrum, or Optimism. Keyless multi-endpoint failover. ?network=base
Count exact LLM tokens for a string using the real OpenAI BPE (o200k_b
Count exact LLM tokens for a string using the real OpenAI BPE (o200k_base for gpt-4o/o-series, cl100k_base for gpt-4/gpt-3.5). Deterministic, offline - budget context windows without calling a model.