As low as 3% of official pricing, Start

Example: at 0.2 model rate, pay 10.00 → usable $50.00. Balance is usable across all models. Actual pricing is subject to the website display.

Welcome to YesAPI. This guide walks you through the essential information you need before integrating YesAPI into production: available models, pricing and discounts, API keys, security, request flow, limits, troubleshooting, and support.
YesAPI provides a unified, stable, cost-effective API entry point for Claude, GPT, image, video, music, and other mainstream AI models. Please read this page carefully before going live.

Getting Started

1. Available Models & Market

You can browse the model index on Market, or jump directly into a model category:

Category	Use Cases	Entry
Chat Models	Chat, writing, coding, agents, knowledge base Q&A	Chat Models
Image Models	Text-to-image, image editing, product images, design assets	Image Models
Video Models	Text-to-video, image-to-video, short clips, ad creatives	Video Models
Music Models	Music generation, songs, vocals, background music	Music Models

GPT: GPT-5.6 Sol, GPT-5.5 Pro, GPT-5.4 mini

Image: Seedream 4.5, GPT Image 2, Midjourney v7

Video: Sora 2, Veo 3, Kling 2.5

Music: Suno v5, Udio 2

2. Pricing & Discounts

YesAPI is designed for developers and teams that need long-term, high-volume, stable access to AI models.

YesAPI converts subscription-based model access into unified API access.

Platform campaigns, recharge bonuses, and model-side cost advantages can combine into a lower overall usage cost.

Model availability, pricing, and billing rules should always be checked in the current console.

Useful links:

Models: Models

Recharge: Recharge

Website: yesapi.online

3. Creating and Securing Your API Key

Every request must include your API key in the request headers:

Security recommendations:

Never expose your API key in frontend code, mobile apps, or public repositories.

Route requests through your own backend whenever possible.

Use separate keys for different projects to simplify usage tracking and rotation.

Rotate the key immediately if you suspect exposure.

4. Base URL

Main API domain:

https://yesapi.online

OpenAI-compatible SDK configuration:

Claude / Anthropic-style tools can point to YesAPI according to the tool's configuration requirements:

5. Request Flow

Choose a model page, such as GPT-5.6 Sol or Claude Opus 4.8.

Copy the model name into the model field.

Use https://yesapi.online or https://yesapi.online/v1 as the Base URL.

Add Authorization: Bearer sk-your-api-key to the headers.

Call the Chat, Messages, Images, Video, or Music endpoint according to the model type.

Log responses, errors, latency, and usage for production debugging.

6. First API Call

7. SDK Examples

Python

Node.js

8. Streaming

Streaming is recommended for chat, coding, and long-form generation:

{
  "model": "gpt-5-6-sol",
  "messages": [{"role": "user", "content": "Write a product introduction"}],
  "stream": true
}

When streaming is enabled, the server returns incremental content through SSE. The frontend should read chunks line by line and close the connection when the stream ends.

9. Limits and Production Tips

Chat products: limit per-user concurrency and enable streaming.

Batch jobs: use a queue and cap retry attempts.

Image, video, and music: use longer timeouts and avoid duplicate submissions.

Agents and coding tasks: log the full chain and set maximum step limits.

Cost-sensitive tasks: choose models by task instead of sending every request to the highest-tier model.

10. Error Handling

Status	Common Cause	Recommendation
400	Invalid parameters, wrong model name, invalid messages format	Check the model page and request body
401	Missing, invalid, or expired API key	Check the `Authorization` header
402	Insufficient balance or quota	Check balance and recharge entry
404	Wrong path or endpoint type	Check Base URL and endpoint path
429	Too many requests or too much concurrency	Reduce concurrency and add backoff
500	Upstream or service error	Log request details and retry later

11. Support

When reporting an issue, prepare:

Request time and request path

Model name

Status code and response body

Whether streaming was enabled

Whether it was a batch or high-concurrency task

Then check the corresponding model page, or visit yesapi.online for platform access.

As low as 3% of official pricing, Start

Example: at 0.2 model rate, pay 10.00 → usable $50.00. Balance is usable across all models. Actual pricing is subject to the website display.

Getting Started

Getting Started#

1. Available Models & Market#

2. Pricing & Discounts#

3. Creating and Securing Your API Key#

4. Base URL#

5. Request Flow#

6. First API Call#

7. SDK Examples#

Python#

Node.js#

8. Streaming#

9. Limits and Production Tips#

10. Error Handling#

11. Support#

Getting Started

1. Available Models & Market

2. Pricing & Discounts

3. Creating and Securing Your API Key

4. Base URL

5. Request Flow

6. First API Call

7. SDK Examples

Python

Node.js

8. Streaming

9. Limits and Production Tips

10. Error Handling

11. Support