Liquid Agent — Buy & Invest in Tokenized Stocks On-Chain

PAID: $0.007 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Quantitative signals for the tokenized NVDA/META/AAPL/GOOGL basket so an agent can decide weights in one call instead of visiting four sites, then execute via the free /v1/set-weights + /v1/rebalance. Aggregated data, not investment advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 5m BTC window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 15m BTC window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 5m ETH window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 15m ETH window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 5m SOL window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 15m SOL window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 5m XRP window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.004 USDC per call via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453, Polygon eip155:137 or Arc eip155:5042). Returns the OFFICIAL price to beat for the live 15m XRP window (the 60 s Chainlink TWAP before it starts, matched to every decimal against Polymarket's published values), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. Polymarket's public API only shows the price to beat after the window closes. Pass ?start=<unix> for a past window's official settle and outcome. First call free: add ?free=1 for one live answer at no charge (one per agent). You are never charged when it cannot answer. Data, not financial advice.

PAID: $0.001 USDC per search via x402 (exact scheme, EIP-3009, USDC on Arc eip155:5042, Base eip155:8453 or Polygon eip155:137). Custom 3D printed collectibles and gifts: figurines, statues, keychains, bag tags and branded merch. Soccer, anime, crypto, hypebeast and ancient-art collections.

PAID: USDC, $0.03 per lead, flat (with or without an email); 1 to 1000 leads per call (default 3 = $0.09); free first: sample=1 returns 3 leads; the 402 quotes the exact total; empty answers are free. x402 exact scheme, EIP-3009 USDC on Base eip155:8453 or Arc eip155:5042. Local business leads by category and place for B2B prospecting and cold outreach: a lead list of US small businesses (dentists, plumbers, salons, contractors...) with verified emails (graded A/B/C), a contact name when the email shows one, phone, a website proven by the business's own phone number, socials and buying signals (no website, online booking tool, payment system, hiring).

PAID: $0.01 per lookup that finds a business, no match no charge. x402 exact scheme, EIP-3009 USDC on Base eip155:8453 or Arc eip155:5042. Reverse phone and website lookup for US local businesses: give a phone number or a website, get the business behind it (name, address, category, graded email, contact name, socials, buying signals). Websites only match when they carry the business's own phone number.

PAID: $0.005 per lookup that finds a verified site, no match no charge. x402 exact scheme, EIP-3009 USDC on Base eip155:8453 or Arc eip155:5042. Website technology lookup (technographics) for US local businesses: give a website or phone number, get the site platform (WordPress, Wix, Squarespace, Shopify), online booking tool (Square Appointments, Vagaro, Calendly, Zocdoc), payment system (Square, Toast, Clover, Stripe), hiring and socials, read from the business's own verified website.

PAID: $0.01 USDC flat per publish via x402 (exact scheme, EIP-3009, USDC on Base eip155:8453 or Polygon eip155:137). Mints or extends a shareable page at /v/<slug> showing the vault's holdings, allocation, live prices and signals for 24 hours; re-publish to keep it alive. Returns {viewUrl, slug, expiresAt}; your user opens the viewUrl with no wallet.

Move USDC from Base to 16 chains (Arc, Arbitrum, OP Mainnet, Polygon, Avalanche, Unichain, Linea, World Chain, Sonic, Monad, Sei, Ink, HyperEVM, XDC, Plume and Codex), or from Arc to Base, with a single x402 payment. No transaction to build, no approvals, no gas token. You receive exactly the amount you ask for, at your own address, in about 12 seconds. Refer other agents and earn 20% of Liquid's fee on every bridge they make, credited on-chain in the same transaction. PAID, dynamic: the 402 is the exact price (Arc -> Base: about 1.077 USDC to receive 1; Base -> Arc: about 1.035 USDC to receive 1, payable on Base; minimum 1 USDC; Liquid's fee can never exceed max(3%, $0.05), enforced on-chain). Query: from=arc|base, to=base|arc, amount=<USDC to receive>, ref=<optional referrer address>. Pay once on the source chain (x402 exact, EIP-3009) to that chain's bridge contract: Arc 0x3bc7bf1afc96c1de35ac48e1a0a3cc3d617a77b1 (USDC domain "USDC" v2) or Base 0xbf43e09b91c4d4aa55e033a3487f345ce4ed7557 (USDC domain "USD Coin" v2). Guide: https://api.liquidagent.ai/v1/bridge/guide

PAID, dynamic (from $0.03 USDC, max $2.00; the 402 is the quote, issued only after a successful simulation). Body {transaction:<base64 v0 or legacy, signed by you, feePayer = the sponsor address from GET>, send?:true}. Without payment: 402 with the exact price = (network fee + priority fee + rent for token accounts it opens) x 1.3. Payment: one USDC TransferChecked of exactly `amount` from your token account to the sponsor's USDC account, sponsor as fee payer, signed by you, wrapped as {x402Version:2, scheme:'exact', network, accepted, payload:{transaction}} and base64d into PAYMENT-SIGNATURE (X-PAYMENT also works). The same POST then returns {transaction (co-signed), feePayer, priceUsd, lamports, feePaymentSig, settledBy, signature? when send:true, next}. Limits: sponsor only as fee payer and payer of <= 8 ATA creates; compute limit <= 1.4M units, price <= 50,000 micro-lamports/unit; 500 sponsorships per payer per day; 503 and no charge when the sponsor is low on SOL.

PAID, dynamic (from $0.03 USDC per operation; the 402 is the quote, valid 120 s). ONE endpoint, the body picks the lane. (A) Smart-wallet SDKs: standard ERC-7677 JSON-RPC {jsonrpc:"2.0", method: pm_getPaymasterStubData | pm_getPaymasterData, params:[userOperation, entryPoint, chainId, context]} — HTTP is always 200 and an unpaid pm_getPaymasterData returns a JSON-RPC error {code:402, data:<x402 PaymentRequired>}; put the x402 payment object in params[3].context.x402 and retry. (B) Plain wallets, no ETH: POST {sender, calls:[{to,data,value?}]} -> 402 with the exact price; pay it (X-PAYMENT) and the same call returns {userOperation (sponsored), typedData, authorization? (EIP-7702, only if the EOA is not delegated yet), validUntil}. Sign typedData with the sender's key, sign the authorization if given, then POST {userOperation, authorization?} back to this URL: we submit it and our deposit pays the gas. No further charge; only operations we sponsored are accepted, once each. EntryPoint v0.8. Price = max($0.03, 1.3× the op's gas cap) and the signed sponsorship locks the gas limits and max fee, so the sponsor can never charge more than quoted. (C) Bring your own operation, for any EntryPoint v0.8 smart account (a wallet already delegated to another EIP-7702 implementation, or a deployed Kernel / Safe / Nexus account): POST {userOperation} unsigned (your sender, calldata and gas limits; no paymaster fields) -> 402 with the exact price; pay it and repeat -> {userOperation with paymaster fields, typedData, validUntil}; sign it the way your account expects (viem: account.signUserOperation) and POST {userOperation} back: we dry-run it through the EntryPoint (a failing dry run returns 400 with the reason and costs nothing) and then submit it from our wallet. No bundler, no stake. Lane B note: if the EOA is already delegated to another implementation the first call returns 409; add "redelegate": true to the same body and the returned authorization (signed by you, applied in the same transaction, reversible) re-points the wallet to Simple7702Account.