Lighter
Lighter is a decentralized perpetual futures exchange built on zkLighter, a zero-knowledge rollup that produces verifiable proofs of order matching and liquidations while targeting the latency of a centralized venue. Traders register a Lighter account by signing with an Ethereum wallet, then operate it through up to 256 API keys across master and sub-accounts. The public zkLighter REST API exposes 78 operations covering order books, trades, candles, funding rates, accounts, positions, public pools, referrals, deposits, transfers and withdrawals, alongside a WebSocket stream carrying order book, trade, candle, position and account-transaction channels. Writes are signed transactions rather than plain authenticated calls: clients sign an order, cancel, modify or transfer body with an API private key and submit it via sendTx or sendTxBatch. Lighter ships first-party Python and Go SDKs, runs a full testnet deployment, publishes a 239-entry numeric error registry, weighted per-tier rate limits, and a vulnerability disclosure policy.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Lighter the way a machine reads it — 20 machine-readable artifacts across 13 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Lighter scores 59.3/100 (developing), with a separate agent-readiness read of 76/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Lighter
Each block below is one kind of artifact we hold for Lighter. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 13
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Lighter account API
The account API from Lighter — 26 operation(s) for account.
Lighter announcement API
The announcement API from Lighter — 1 operation(s) for announcement.
Lighter block API
The block API from Lighter — 3 operation(s) for block.
Lighter bridge API
The bridge API from Lighter — 6 operation(s) for bridge.
Lighter candlestick API
The candlestick API from Lighter — 2 operation(s) for candlestick.
Lighter funding API
The funding API from Lighter — 1 operation(s) for funding.
Lighter info API
The info API from Lighter — 5 operation(s) for info.
Lighter notification API
The notification API from Lighter — 1 operation(s) for notification.
Lighter order API
The order API from Lighter — 12 operation(s) for order.
Lighter referral API
The referral API from Lighter — 6 operation(s) for referral.
Lighter root API
The root API from Lighter — 2 operation(s) for root.
Lighter tokenlist API
The tokenlist API from Lighter — 1 operation(s) for tokenlist.
Lighter transaction API
The transaction API from Lighter — 12 operation(s) for transaction.
Scroll within the panel for all 13 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
lighter-mcp.yml
MCP SERVERPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Lighter Plans
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Lighter Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Lighter zkLighter WebSocket API
Real-time streaming surface for the zkLighter decentralized perpetuals exchange. Generated by the API Evangelist enrichment pipeline from Lighter's published WebSocket reference...
ASYNCAPISecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Lighter — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
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