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evolink-nanobanana-2-lite

v1.0.10

Published

EvoLink API examples and agent skill for Nanobanana 2 Lite Image Generation.

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Links

Git

Maintainers

cheercheungcheercheung

Keywords

nanobanana-2-lite-image-generationevolinkapiopenclawclaude-codeopencodeevolinkai-skill

Readme

Nanobanana 2 Lite Image Generation NPM Package

NPM package surface: this README is rendered on npm from README.npm.md. Every API-key link on this page uses npm/package attribution. Installer runtime output still prints its own installer attribution URL after the package runs.

AI Agent? Start here: use npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill as the primary Agent install command. Use npx only as a fallback or direct CLI path.

📑 Menu

Agent Skill First

This npm package is designed for agents and developers who want a one-line install path. The primary workflow is to install the skill with npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill, let the agent read the installed SKILL.md, and only then call the EvoLink API.

| Skill slug | NPM package | Model ID | Primary env var | |---|---|---|---| | nanobanana-2-lite-image | evolink-nanobanana-2-lite | gemini-3.1-flash-lite-image | EVOLINK_API_KEY |

Installation

Install into your agent skills directory. Use npx skills add as the primary Agent install path for Claude Code, Codex, OpenClaw, Hermes, and other agent runtimes. Use npx only as a fallback or direct CLI path.

Agent Install (Recommended)

npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill

Install via npm (Fallback / Direct CLI)

npx evolink-nanobanana-2-lite@latest
npx evolink-nanobanana-2-lite@latest -y
npx evolink-nanobanana-2-lite@latest -y --path ~/.claude/skills
npx evolink-nanobanana-2-lite@latest "Create a short Nanobanana 2 Lite Image Generation demo"

Manual Install

git clone https://github.com/Evolink-AI/nanobanana-2-lite-image-generate-api-skill.git
cd nanobanana-2-lite-image-generate-api-skill
npm install
node bin/cli.js -y --path ~/.claude/skills

Agent Auto-Install

Use the copy-paste prompts in the next section when an agent needs to install the skill by itself.

The prompt blocks below use npm/package API-key attribution because the user is reading them on the npm package page. The installed CLI will print the installer-runtime key URL during setup.

Agent Auto-Install

Claude Code

Install the Nanobanana 2 Lite Image Generation skill by running:

npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill

After installation, open this tracked key URL for the user: https://evolink.ai/dashboard/keys?utm_source=npm&utm_medium=package&utm_campaign=nanobanana-2-lite-image
Ask the user to sign in, create an API key, return to this agent chat, and paste the key.
Set it as EVOLINK_API_KEY for this session, verify it with `curl --fail https://api.evolink.ai/v1/credits -H "Authorization: Bearer $EVOLINK_API_KEY"`, then read the installed nanobanana-2-lite-image/SKILL.md.
After verification succeeds, tell the user: "The skill is ready. You can ask: Use Nanobanana 2 Lite Image Generation to create a blue ceramic cup on a white table."
If `npx skills` is unavailable, use this fallback: `npx evolink-nanobanana-2-lite@latest -y --path ~/.claude/skills`.

Codex

Install the Nanobanana 2 Lite Image Generation skill by running:

npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill

After installation, open this tracked key URL for the user: https://evolink.ai/dashboard/keys?utm_source=npm&utm_medium=package&utm_campaign=nanobanana-2-lite-image
Ask the user to sign in, create an API key, return to this agent chat, and paste the key.
Set it as EVOLINK_API_KEY for this session, verify it with `curl --fail https://api.evolink.ai/v1/credits -H "Authorization: Bearer $EVOLINK_API_KEY"`, then read the installed nanobanana-2-lite-image/SKILL.md.
After verification succeeds, tell the user: "The skill is ready. You can ask: Use Nanobanana 2 Lite Image Generation to create a blue ceramic cup on a white table."
If `npx skills` is unavailable, use this fallback: `npx evolink-nanobanana-2-lite@latest -y --path ~/.codex/skills`.

OpenClaw

Install the Nanobanana 2 Lite Image Generation skill by running:

npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill

After installation, open this tracked key URL for the user: https://evolink.ai/dashboard/keys?utm_source=npm&utm_medium=package&utm_campaign=nanobanana-2-lite-image
Ask the user to sign in, create an API key, return to this agent chat, and paste the key.
Set it as EVOLINK_API_KEY for this session, verify it with `curl --fail https://api.evolink.ai/v1/credits -H "Authorization: Bearer $EVOLINK_API_KEY"`, then read the installed nanobanana-2-lite-image/SKILL.md.
After verification succeeds, tell the user: "The skill is ready. You can ask: Use Nanobanana 2 Lite Image Generation to create a blue ceramic cup on a white table."
If `npx skills` is unavailable, use this fallback: `npx evolink-nanobanana-2-lite@latest -y --path ~/.openclaw/skills`.

One-Liner

EVOLINK_API_KEY=your_key_here npx evolink-nanobanana-2-lite@latest "Create a blue ceramic cup on a white table"

Getting an API Key

  1. Open EvoLink API Keys.
  2. Sign in or create an EvoLink account if prompted on that page.
  3. Create a new API key.
  4. Export the key as EVOLINK_API_KEY.
  5. Run a dry run before spending credits on a real generation.

API Quick Start

Use the same API key with the image generation endpoint.

export EVOLINK_API_KEY="your_key_here"

curl --request POST \
  --url https://api.evolink.ai/v1/images/generations \
  --header "Authorization: Bearer ${EVOLINK_API_KEY}" \
  --header "Content-Type: application/json" \
  --header "X-EvoLink-Source: skill" \
  --header "X-EvoLink-Skill: nanobanana-2-lite-image" \
  --header "X-EvoLink-Package: evolink-nanobanana-2-lite" \
  --header "X-EvoLink-Campaign: nanobanana-2-lite-image" \
  --header "X-EvoLink-Touchpoint: first_run" \
  --data '{
  "model": "gemini-3.1-flash-lite-image",
  "prompt": "Create a short demo with Nanobanana 2 Lite Image Generation"
}'

Example response:

{
  "id": "task_example",
  "status": "pending"
}

Full First-Run Flow

  1. Create a task with POST /v1/images/generations.
  2. Store the returned task ID.
  3. Poll GET /v1/tasks/{task_id} until the task is completed, or pass callback_url.
  4. Save the final media URL from results or result_data before it expires.

API Reference

What Is Nanobanana 2 Lite Image Generation?

Nanobanana 2 Lite Image Generation is an EvoLink image generation endpoint for text-to-image, image-to-image, and image editing workflows through the gemini-3.1-flash-lite-image model.

Endpoints

| Purpose | Method | Path | |---|---|---| | Create task | POST | /v1/images/generations | | Query task | GET | /v1/tasks/{task_id} |

Request Parameters

| Parameter | Type | Required | Notes | |---|---|---|---| | model | string | yes | Use gemini-3.1-flash-lite-image. | | prompt | string | yes | Prompt describing the image to generate or how to edit input images. Maximum 2000 tokens. | | size | string | no | Aspect ratio. Defaults to auto; supported values include 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9, and more. | | quality | string | no | Image quality. Default and supported value: 1K. | | image_urls | string array | no | Reference images for image-to-image or editing. Up to 14 images, each under 20MB, using .jpeg, .jpg, .png, or .webp. | | model_params | object | no | Model extension parameters. | | callback_url | string | no | HTTPS callback URL for task completion, failure, or cancellation. |

Pricing and Billing

EvoLink returns usage details in the task creation response. The official example uses billing_rule: "per_call" and credits_reserved: 8.7; check the returned usage object and the EvoLink dashboard for the current account-specific charge before high-volume use.

Documentation

🖼️ Showcase

| Example | Result | |---|---| | First successful API call | Polls until completed and prints the final URL / text / file. | | Agent skill install | Installs SKILL.md, _meta.json, scripts/, and references. | | Dry run | Prints the request payload without spending API credits. |

Troubleshooting

| Issue | Fix | |---|---| | EVOLINK_API_KEY is missing | Export EVOLINK_API_KEY before running the script. | | Skill installed but agent cannot see it | Re-run with the correct --path for Claude Code, Codex, OpenClaw, or Hermes. | | jq or curl is missing | Install the missing binary, then rerun the npx command. | | API returns 401 or 403 | Verify the EvoLink key and account access. | | Polling times out | Keep the task ID, inspect the dashboard, and avoid blind resubmission. |

Compatibility

| Agent | Install command | |---|---| | Claude Code | npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill | | Codex | npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill | | OpenClaw | npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill | | Hermes | npx skills add Evolink-AI/nanobanana-2-lite-image-generate-api-skill |

Community

License

MIT