Frequently Asked Questions

API.market is a unified marketplace that connects API buyers and API sellers. It serves as a central hub where developers, creators, and businesses can discover, test, and integrate 300+ AI APIs and MCP servers — including FaceSwap, Text-to-Video, Image Editing, Background Removal, and Aviation Data — all from a single account. We handle authentication, billing, rate limiting, and analytics so you can focus entirely on building.

API.market acts as a secure proxy between you and various API providers. When you subscribe to an API, your requests are routed through our platform using your x-api-market-key header. This unified architecture lets you manage multiple diverse APIs through a single account and a consolidated billing system.

• Unified Access: One account for 300+ APIs across Text-to-Image, Text-to-Video, Image Editing, Data, and more.
• Try Before You Buy: Most APIs include free tiers or an interactive Playground for instant testing.
• MCP Integration: All APIs support the Model Context Protocol (MCP) for use in AI tools like Claude and Cursor.
• No Vendor Lock-in: Pay-As-You-Go and monthly plans available — only pay for what you use.
• Privacy First: Uploaded media is deleted within 30 minutes of processing.

Yes. Your single API key works across all APIs you are subscribed to on API.market. You can also create multiple keys under Account → API Keys to keep different projects or environments isolated.

Include your key in every request as the x-api-market-key header. See the Quick Start example below for a full curl command. SDK examples for Python, Node.js, and other languages are available on each API's product page.

• Free Tiers: Limited free requests every month (e.g., FaceSwap Image V3 gives 10 free images/month).
• Monthly Subscriptions: Fixed fee for a set quota of units that resets each billing cycle (e.g., AeroDataBox at $5/month for 6,000 units).
• Pay-As-You-Go (PAYG): Charged per request or per second with no monthly reset. Requires a pre-loaded Wallet balance (e.g., Wan2.2 at $0.07/video).
• HARD limit: Usage stops when your quota is exhausted — no surprise overages.
• SOFT limit: Usage continues beyond your quota and overages are charged at PAYG rates.

Go to Account → Subscriptions to view your active plans and invoices. To upgrade or downgrade, open the product page of the API you're subscribed to and select a new plan under Plans.

The Wallet lets you pre-load funds for Pay-As-You-Go services. You can also enable Auto-Pay so subscriptions never lapse. A minimum balance (e.g., $1.00) may be required before making PAYG requests on some APIs.

Most monthly subscription quotas reset at the start of each billing cycle and do not roll over. Pay-as-you-go credits do not expire — they are deducted per use. For custom rollover arrangements, contact hello@api.market.

• HARD limit: Requests are blocked once your quota is exhausted. You will not be charged anything extra. Ideal for budget-conscious projects.
• SOFT limit: Requests continue past your quota and overages are billed at the PAYG rate. Ideal for production workloads that cannot afford downtime.

Go to Account → Subscriptions, find the plan you want to cancel, and click Cancel Plan. Access continues until the end of the current billing period. You will not be charged after cancellation.

• Use sharp, front-facing, well-lit face images.
• Avoid motion blur, occlusion (sunglasses, hats), or extreme angles.
• For video, test short clips first before submitting longer content.
• Higher resolution inputs generally produce more realistic swaps.

Video FaceSwap uses an asynchronous flow. First, POST your request to /run to receive a prediction ID. Then GET /status/{id} repeatedly until the state changes to COMPLETED. Processing time depends on video length and resolution.

Seedance Pro generates high-quality video clips from text prompts with sophisticated camera paths. Pricing starts at $0.03/second for 480p and goes up to $0.15/second for 1080p. There is no free tier for Seedance Pro.

Wan2.2 is a high-speed 5B parameter text-to-video model available on API.market. It is priced between $0.02 and $0.07 per video on a Pay-As-You-Go basis — one of the most affordable options for rapid video generation.

Video generation times vary by model and resolution. Most text-to-video APIs complete within 1–5 minutes depending on clip length and selected resolution. Wan2.2 Ultra-Fast is optimized for the shortest wait times. All video APIs use an asynchronous request-then-poll flow.

Nano-Banana is a lightning-fast AI image editing API powered by Google technology. It processes edits in seconds and supports a wide range of image manipulation tasks. Pricing: $0.05 per image on a Pay-As-You-Go basis — you are only charged for what you use, with no monthly fee.

This API lets you edit images using plain English instructions — no complex prompts or design tools required. Simply describe the change you want (e.g., “remove the car in the background”) and the API applies it. Pricing: $0.05 per image, with free trial usage included.

The AI Object Remover V2 cleanly removes unwanted objects from images — people, logos, watermarks, and more — with smart background fill. Pricing: $4.99/month for 1,000 units, plus a free plan for testing.

The Instant Background Removal API removes backgrounds in seconds. Pricing: $0.05 per image with a free trial included. It supports product photos, portraits, and complex multi-element images.

MCP (Model Context Protocol) is an open standard that lets AI assistants like Claude and Cursor call external tools and APIs directly. All APIs on API.market expose an MCP-compatible interface, meaning you can invoke them in plain English from inside your AI tool — no manual HTTP requests required.

1. Open the API's product page (e.g., Seedance Text-to-Video Pro).
2. Scroll down to API Playground and select the MCP Integration tab.
3. Copy the provided snippet into Claude or Cursor.
4. Ask in plain English and run.

Yes. You can add MCP snippets from multiple APIs and chain them in a single workflow. For example: Speech-to-Text → Text-to-Image → Image-to-Video — all orchestrated via natural language in Claude or Cursor.

A regular API requires you to write code to construct HTTP requests, handle authentication, and parse responses. With MCP, an AI assistant handles all of that — you describe what you want, and the assistant calls the correct API with the right parameters automatically.

Yes. Every plan has a monthly quota. Entry-level plans typically include a HARD cap (requests stop when quota is exhausted). Enterprise plans provide higher limits and dedicated throughput. You can view remaining quota at any time under Account → Subscriptions.

• Image APIs (FaceSwap Image, Background Removal, Nano-Banana) → typically a few seconds.
• Video APIs (FaceSwap Video V3, Seedance Pro, Wan2.2) → 1–5 minutes depending on resolution and length. These use an asynchronous poll-based flow.
• Data APIs (AeroDataBox) → real-time, sub-second latency.

No. API.market does not store or use your uploaded media for any purpose. All files are automatically deleted within 30 minutes of processing.

After you subscribe to an API, you own the outputs and can use them for any purpose except NSFW content. It is your responsibility to comply with applicable laws, platform terms, and privacy rights regarding the images and people depicted. API.market's Terms of Service prohibit generating harmful or deceptive content.

Yes. API.market is GDPR compliant and follows strict Terms of Service. APIs can be used for commercial projects. For stronger privacy requirements — such as healthcare, finance, or media — consider upgrading to an Enterprise plan with dedicated endpoints or on-premise deployment.

Yes. API.market is fully GDPR compliant. Media is not retained after processing, no personal data is sold to third parties, and users can request data deletion at any time by contacting hello@api.market.

Yes. For high-volume needs that don't fit standard tiers, we offer custom pricing arrangements. Reach out via hello@api.market or use the Intercom chat widget (bottom-right of the site) to discuss volume discounts and dedicated support SLAs.

• 400 (Bad Request): Missing or invalid parameter in the request body. Check required fields.
• 401 (Unauthorized): Your x-api-market-key is missing or invalid.
• 429 (Too Many Requests): Rate limit or quota exceeded for your current plan.
• 5xx (Server Error): An issue on our end. Wait a moment and retry, or contact support.

1. Ensure your x-api-market-key header is present and valid.
2. Check your remaining quota under Account → Subscriptions.
3. Verify input format, file size, and required parameters.
4. Read the full error message — it usually specifies the fix.
5. If the issue persists, contact hello@api.market or use the Intercom chat.

• Use sharp, front-facing, well-lit face images as source.
• Avoid blur, occlusion (sunglasses, masks, hats), or extreme angles.
• For videos, test with a short 5–10 second clip first.
• Higher resolution inputs generally produce more realistic swaps.

API.market takes a 20% commission on revenue generated through the marketplace. There are no upfront listing fees — you only pay when you earn. For custom arrangements or high-volume seller agreements, contact hello@api.market.