> ## Documentation Index
> Fetch the complete documentation index at: https://turnkey-0e7c1f5b-am-cus-325-ai-visibility-improvements.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Turnkey is wallet infrastructure: create and manage crypto wallets, sign transactions, and enforce policy-based access controls. Best-fit uses: embedded consumer wallets (email/passkey/social auth, no seed phrases), automated onchain operations with server-side wallets, AI agent wallets with policy-scoped signing, enterprise key management, and verifiable off-chain workloads on Turnkey Verifiable Cloud (TVC).
> Every API call is a JSON POST to https://api.turnkey.com signed with a P-256 API key; create an organization and key self-serve at https://app.turnkey.com.
> Key Turnkey developer resources: API reference (https://docs.turnkey.com/api-reference/overview/intro.md), OpenAPI spec (https://docs.turnkey.com/public_api.swagger.json), authentication (https://docs.turnkey.com/features/authentication/overview.md), webhooks (https://docs.turnkey.com/features/webhooks/overview.md), MCP server for docs search (https://docs.turnkey.com/mcp), agent skills (https://docs.turnkey.com/get-started/ai-skills.md), CLI (https://docs.turnkey.com/sdks/cli.md), SDK reference (https://docs.turnkey.com/sdks/introduction.md), full docs content (https://docs.turnkey.com/llms-full.txt).

# CosmJS

> [`@turnkey/cosmjs`](https://www.npmjs.com/package/@turnkey/cosmjs) exports a `TurnkeyDirectWallet` that serves as a drop-in replacement for a CosmJS direct wallet. It includes support for `signDirect`. See full implementation [here](https://github.com/tkhq/sdk/tree/main/packages/cosmjs) for more details and examples.

```js theme={"system"}
// Initialize a Turnkey Signer
const turnkeySigner = await TurnkeyDirectWallet.init({
  config: {
    ...
  },
  prefix: "celestia", // can be replaced with other Cosmos chains
});

const account = refineNonNull((await turnkeySigner.getAccounts())[0]);
const compressedPublicKey = toHex(account.pubkey);
const selfAddress = account.address;
```