Venice Auth

Authenticate to the Venice API with a Bearer API key or with an x402 / SIWX wallet (EVM on Base, including EIP-1271 smart wallets, or Ed25519 on Solana). Covers which endpoints accept which scheme, the SIGN-IN-WITH-X header format, the SIWE and Solana message fields, the enforced TTL / clock-skew / nonce rules, every X402_SIGN_IN_* error code, the venice-x402-client SDK, and how to choose between the two modes.

160 stars 27 forksSoftware Development

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add veniceai/skills --skill venice-auth

Manual install

git clone --depth 1 https://github.com/veniceai/skills.git /tmp/skills
mkdir -p ~/.claude/skills
cp -r /tmp/skills/skills/venice-auth ~/.claude/skills/venice-auth

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Venice Authentication

Venice declares two auth schemes in its OpenAPI spec: `BearerAuth` (API key) and `siwx` (x402 wallet). Inference endpoints accept either; account endpoints need a key; discovery endpoints need nothing.

## Use when

- You're making your first call to `api.venice.ai`.
- You're building a server-side integration (usually Bearer) or an agent / no-account wallet flow (x402).
- You hit `401` / `402` and need to check header format.
- You're implementing SIWE / Solana signing manually instead of using the SDK.

## Which endpoints accept what

| Endpoints | Bearer key | SIWX wallet |
|---|---|---|
| Inference: `/chat/completions`, `/responses`, `/embeddings`, `/decisions` (+ `/systemone`), `/image/*` (generate, edit, multi-edit, upscale, background-remove), `/images/generations`, `/audio/speech`, `/audio/transcriptions`, `/audio/voices`, `/audio/{queue,retrieve,complete}`, `/audio/voice-changer/{queue,retrieve,complete}`, `/video/{queue,retrieve,complete}`, `/augment/*`, `POST /crypto/rpc/{network}` | yes | yes |
| `/api_keys*` (except `generate_web3_key`), `/billing/*` (except the retired `/billing/usage`, which answers `410` without auth), `/characters*` | yes | no - a SIWX header alone gets `401 Authentication failed` |
| `GET /x402/balance/{wallet}`, `GET /x402/transactions/{wallet}` | no | yes - signer must be `{wallet}` (else `403`) |
| `POST /x402/top-up` | - | payment header (see below) |

Read the full skill on GitHub

Details

Skill name: venice-auth
Repository: veniceai/skills
Path: skills/venice-auth/SKILL.md
License: MIT
Repo updated: 30 October 2026
Listed in: VoltAgent/awesome-agent-skills

FAQ

What does the Venice Auth skill do?

How do I install the Venice Auth skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add veniceai/skills --skill venice-auth. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Venice Auth popular?

It lives in veniceai/skills, which has 160 GitHub stars and 27 forks, and is included in 1 curated skill list.

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