JavaScript / TypeScript SDK

Install with npm install e3d-sdk.

import { E3D } from 'e3d-sdk';
 
const e3d = new E3D({
  baseUrl: 'https://e3d.ai/apitest',
  apiKey: process.env.E3D_API_KEY,
});

discovery

Wraps /openapi, /rate, and newsletter-style utility endpoints.

Method	Purpose
`getOpenApi()`	Fetch the live OpenAPI schema
`getRate()`	Fetch the current E3D rate
`getNewsletter()`	Fetch the latest newsletter

const openApi = await e3d.discovery.getOpenApi();
const rate = await e3d.discovery.getRate();

Token discovery, metadata, price history, and token bundle helpers.

Method	Purpose
`fetchTokensDB()`	Query token rows from the DB-backed surface
`getTokenProfile(address)`	Fetch the composite token profile bundle
`getTokenStories(address)`	Fetch token-linked stories
`getTokenTheses(address)`	Fetch token-linked theses
`getTokenNarrativeFlow(address)`	Fetch narrative flow data

const profile = await e3d.tokens.getTokenProfile('0x6488861b401F427D13B6619C77C297366bCf6386', {
  chain: 'ETH',
});

Story feed and story-linked discovery helpers.

const stories = await e3d.stories.list({ limit: 5 });

Thesis feed and annotation/candidate helpers.

const theses = await e3d.theses.list({ limit: 5 });

Counterparty analysis and batch metadata helpers.

Method	Purpose
`getTokenCounterparties({ token, limit })`	Token-level counterparties
`getAddressCounterparties({ address, limit })`	Address-level counterparties
`getAddressMetaBatch({ addresses })`	Batch metadata lookup

const counterparties = await e3d.tokenIntelligence.getTokenCounterparties({
  token: '0x6488861b401F427D13B6619C77C297366bCf6386',
  limit: 10,
});

Note: Swap is wallet-side only. The SDK builds quotes and transactions locally. No swap execution happens on E3D servers.

Method	Purpose
`getSupportedTokens()`	Discover supported wallet-side input tokens
`quoteBuyE3D(...)`	Build a buy-side quote
`buyE3D(...)`	Execute a wallet-side buy flow
`quoteSellE3D(...)`	Build a sell-side quote
`sellE3D(...)`	Execute a wallet-side sell flow
`approveInputToken(...)`	Request ERC20 approval when needed
`buildSwapTransaction(...)`	Return a raw transaction payload
`estimateSwap(...)`	Estimate input or output before sending

const quote = e3d.swap.quoteBuyE3D({
  inputToken: 'ETH',
  amountIn: '50000000000000000',
  slippageBps: 100,
  deadlineMinutes: 30,
});

API key management helpers.

const keys = await e3d.auth.listApiKeys();

The SDK should normalize errors into a stable shape with codes like:

The authoritative type definitions live in the e3d-sdk repository.