# Liquid Agent Tokenized Stock Index and Gas Sponsor API **Canonical:** https://apis.io/apis/liquidagent-ai/liquid-agent-api/ **Provider:** Liquid Agent — https://apis.io/providers/liquidagent-ai/ **Base URL:** https://api.liquidagent.ai **Documentation:** https://api.liquidagent.ai/v1/guide Liquid Agent Tokenized Stock Index and Gas Sponsor API is published by [Liquid Agent](https://apis.io/providers/liquidagent-ai/) on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Tokenized Stocks, DeFi, x402, Gas Sponsorship, and Account Abstraction. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, authentication docs, and rate-limit docs. Agent-facing REST API on Base (eip155:8453). Free reads (basket constituents and live prices, vault NAV and weights, an address's vaults and shares, a purchase quote, the plain-English guide) and free transaction builders (create-vault, set-weights, buy via EIP-2612 permit, rebalance, redeem to USDC or in-kind, send shares) that return unsigned {to,data,value,chainId} for the caller to sign and broadcast. Paid over x402 v2 (exact scheme, EIP-3009 USDC on Base or Polygon, Solana USDC for the Solana lane): GET /v1/signals ($0.04), POST /v1/publish ($0.25), and the gas sponsor at POST /v1/gas and POST /v1/gas/solana (from $0.03, dynamic). No API key, no account; SIWX (EIP-4361) wallet identity is optional on free calls. ## Operations (17) | Method | Path | Summary | |---|---|---| | GET | `/v1/guide` | START HERE. Plain-English guide: how to open your account, buy the tokenized-stock index from $1, check it, rebalance, and cash out. One call explains every ... | | GET | `/v1/basket` | Discover the tokenized stock index: invest in NVIDIA, Apple, Meta and Alphabet, with live prices and fees. | | GET | `/v1/vault/{address}` | Check a vault: its value (NAV), holdings, current vs target weights, and whether it needs rebalancing. | | GET | `/v1/balance/{agent}` | List what an address owns: every vault it holds, its shares, and current USD value. | | GET | `/v1/quote` | Preview a purchase before you buy: shares you would receive and the fee, for a given USDC amount. | | POST | `/v1/create-vault` | Open your own vault (you control it, no one else). Returns a transaction for you to sign. | | POST | `/v1/set-weights` | Set your custom stock allocation (default is equal weight). Returns a transaction for you to sign. | | POST | `/v1/buy` | Buy tokenized stocks: invest USDC into your vault from $1. One tx via EIP-2612 permit (no approve), or legacy approve + deposit. Own NVIDIA, Apple, Meta and ... | | POST | `/v1/redeem` | SELL / cash out: redeem your basket shares to USDC, or take the raw stock tokens in-kind (un-trappable, any block). Anyone holding these shares can sell this... | | POST | `/v1/rebalance` | Rebalance your vault back to its target weights. Returns a transaction for you to sign. | | POST | `/v1/send` | Send your basket to anyone: transfer your tokenized-stock shares (LQMAG4) to any wallet — gift or hand off to another agent, no vault needed on their end. Th... | | GET | `/v1/signals` | Basket signals: the whole basket's rebalancing signal in one call — returns, volatility, RSI, trend, relative strength, correlation, plus an inverse-volatili... | | POST | `/v1/publish` | Publish a live, shareable portfolio page for a vault (24h keep-alive). | | GET | `/v1/gas/solana` | Solana gas sponsor info: fee payer address, fee asset, and how to call it. | | POST | `/v1/gas/solana` | GAS SPONSOR (Solana): POST your transaction with our sponsor as fee payer; pay the exact fee in Solana USDC over x402; get it back co-signed. | | GET | `/v1/gas` | Gas sponsor info: paymaster addresses, price rule, and how to call it. | | POST | `/v1/gas` | GAS SPONSOR: pay per operation in USDC over x402 and we cover the gas on Base or Polygon (add chainId: 137 for Polygon). Pay the fee in USDC on Base or Polyg... | ## Machine-readable artifacts (21) - **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/openapi/liquidagent-ai-openapi.yml - **OpenAPI** — https://api.liquidagent.ai/openapi.json - **Documentation** — https://api.liquidagent.ai/v1/guide - **APIReference** — https://api.liquidagent.ai/openapi.json - **GettingStarted** — https://github.com/LiquidAgent/liquidagentx402#readme - **Examples** — https://github.com/LiquidAgent/liquidagentx402/tree/main/examples - **LLMsTxt** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/llms/liquidagent-ai-llms.txt - **LLMsTxt** — https://api.liquidagent.ai/llms.txt - **Authentication** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/authentication/liquidagent-ai-authentication.yml - **Conventions** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/conventions/liquidagent-ai-conventions.yml - **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/errors/liquidagent-ai-problem-types.yml - **DataModel** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/data-model/liquidagent-ai-data-model.yml - **Overlay** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/overlays/liquidagent-ai-openapi-overlay.yaml - **Plans** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/plans/liquidagent-ai-plans-pricing.yml - **RateLimits** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/rate-limits/liquidagent-ai-rate-limits.yml - **Conformance** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/conformance/liquidagent-ai-conformance.yml - **Lifecycle** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/lifecycle/liquidagent-ai-lifecycle.yml - **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/skills/liquidagent-ai-liquid-agent-stocks.md - **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/skills/liquidagent-ai-liquid-gas-sponsor.md - **AgenticAccess** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/agentic-access/liquidagent-ai-agentic-access.yml - **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/liquidagent-ai/refs/heads/main/apis.yml ## Tags Tokenized Stocks, DeFi, x402, Gas Sponsorship, Account Abstraction, Market Data --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/liquidagent-ai/liquid-agent-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/liquidagent-ai/.