How much does an AI API integration cost?
An AI API integration typically costs about $2,500. Half of the 1,993 priced job posts we tracked fall between $500 and $6,400, and one in ten reaches $15,150 or more.
Band: 25th to 75th percentile of fixed budgets and hourly estimates. Line: median.
Key facts
- Typical cost: $2,500, with the middle half of posts between $500 and $6,400.
- That is close to the $2,500 median across all AI builds we track.
- Work expected to take under a month has a median of $500, against $16,800 for over six months.
- Fixed-price median $400; hourly estimate median $5,150.
- Hourly rates mostly run from $22 to $39 an hour.
- Most requested skills: API, Python and API Integration.
What the build includes
An AI API integration wires a model from a provider such as OpenAI, Anthropic or Google into an existing product or system, adding one defined AI capability without building a new application.
A typical scope
- Server-side calls to the model provider
- Prompts and structured output handling
- Authentication and key management
- Rate limits, retries and fallbacks
- Usage tracking for cost control
What drives the cost
Work expected to take under a month has a median of $500, against $16,800 for over six months. Part of that gap is built in, because hourly estimates are calculated from expected length. Fixed-price posts state a median of $400, while hourly posts work out at $5,150 on our estimate: 13 times as much. One likely reason is that fixed budgets tend to cover a small first step, while hourly posts describe sustained work.
| Expected length | Median cost | Priced posts |
|---|---|---|
| Under 1 month | $500 | 424 |
| 1 to 3 months | $3,100 | 1,185 |
| 3 to 6 months | $11,700 | 179 |
| Over 6 months | $16,800 | 205 |
Posts asking for expert-level talent have a median of $4,000, 2.0 times the $2,000 for intermediate talent. 41% of posts ask for experts.
| Seniority requested | Median cost | Priced posts |
|---|---|---|
| Entry level | $550 | 48 |
| Intermediate | $2,000 | 1,100 |
| Expert | $4,000 | 845 |
What moves the price most
- How clean the existing codebase is and how easy it is to change
- Whether responses must be structured, streamed or validated
- Volume, which decides how much caching and queueing is needed
Cost by industry
| Industry | Median cost | Middle half | Priced posts |
|---|---|---|---|
| E-commerce | $1,550 | $400–$4,800 | 113 |
Skills and hourly rates
The skills named most often in these posts are API (38%), Python (36%), API Integration (36%) and JavaScript (31%). Read this as the working stack for this kind of build, and as a checklist when assessing who should do it.
Hourly posts for this work typically offer $22 to $39 an hour, the middle half of posted rates. The median top of the range is $40 an hour across 1,109 hourly posts. These are rates in the open freelance market: agencies and in-house teams usually cost more.
Who is buying
41% of posts ask for expert-level talent. Buyers are most often based in the United States and the United Kingdom, with 46% in the United States. Among posts that state a company size, 95% come from companies of up to 10 people. A typical post draws about 15 applicants.
What to check before you commit
- Keep API keys on the server and in your own provider account
- Set a monthly spending cap with the model provider
- Agree what happens when the provider is slow or unavailable
Where the demand is
The countries with the most buyers for this build. Each page shows how that market compares.
Frequently asked questions
How much does an AI API integration cost?
An AI API integration typically costs about $2,500. Half of the 1,993 priced job posts we tracked fall between $500 and $6,400, and one in ten reaches $15,150 or more. That is close to the $2,500 median across all AI builds we track.
How long does an AI API integration take?
27% of posts expect the work done in under a month, 56% in one to three months and 17% over a longer stretch. Work expected to take under a month has a median of $500, against $16,800 for over six months.
Why do estimates vary so much?
Fixed-price posts state a median of $400, while hourly posts work out at $5,150 on our estimate: 13 times as much. One likely reason is that fixed budgets tend to cover a small first step, while hourly posts describe sustained work. Scope matters most: how clean the existing codebase is and how easy it is to change and whether responses must be structured, streamed or validated move the price the most.
What hourly rate should I expect?
Most hourly posts offer $22 to $39 an hour, with a median top rate of $40. Agencies and in-house specialists usually charge more than the open freelance market.
What skills does this work need?
Posts most often ask for API, Python, API Integration and JavaScript.
Do I need an expert?
Posts asking for expert-level talent have a median of $4,000, 2.0 times the $2,000 for intermediate talent. 41% of posts ask for experts.
Where do these numbers come from?
From 1,993 public job posts published between December 2025 and November 2026: 885 fixed budgets as stated and 1,108 hourly posts we costed from their rate, expected length and assumed hours. They are what buyers offered, not signed contract prices.
About this data
These figures come from 1,993 public job posts published between December 2025 and November 2026: 885 fixed budgets as stated, and 1,108 hourly posts costed from their rate, expected length and assumed hours. They show what buyers offered, not signed contract prices, and hourly figures assume the work runs its full length. Read the method
Cite this page. The AI Build Index. "AI API integration: what it costs." Published by VIZIO AI. Updated 2026-11-04. https://aibuildindex.com/cost/ai-api-integration
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