FullContact API Pricing: Plans, Tiers, and Cost Scenarios (2026)

Pricing overview

FullContact API's pricing structure is primarily usage-based, centered on the volume of API calls made per month. It offers a tiered subscription model designed to accommodate varying needs, from individual developers using the free tier to large enterprises requiring extensive data enrichment and identity resolution services. The cost is influenced by the specific API endpoints accessed, such as the Person Enrichment API or Company Enrichment API, as well as the total number of successful data lookups. While the core model is transactional, FullContact provides different subscription plans that bundle a set number of calls at a fixed monthly rate, with options for overage charges or custom enterprise agreements for higher volumes FullContact Pricing Page.

The company positions its API as a tool for personalization at scale, marketing segmentation, fraud detection, and CRM enrichment, suggesting that the value derived from accurate data can offset the operational costs. Pricing transparency is maintained through a published pricing page that details the included calls and monthly fees for standard plans. For organizations with unique requirements or exceptionally high volumes, custom pricing can be negotiated, which typically involves dedicated support and tailored service level agreements (SLAs).

Understanding the distinction between an API call and a successful data enrichment is important for cost management. FullContact generally charges for successful enrichments, meaning calls that return meaningful data, rather than every single request made to the API. However, specific definitions and billing logic can vary, so consulting the official FullContact documentation is recommended for precise details on how API calls are counted for billing purposes.

Plans and tiers

FullContact API offers several distinct plans, each designed to cater to different operational scales and usage requirements. These plans are structured around a base number of API calls per month, with incremental pricing for additional calls beyond the included limit. The primary plans typically include:

• Free Tier: Designed for evaluation and low-volume usage, offering a limited number of API calls without a monthly fee.
• Growth Plan: The entry-level paid option, suitable for small to medium-sized businesses or startups that require a consistent volume of data enrichment. This plan includes a set number of API calls per month.
• Business Plan: Geared towards growing businesses with higher data demands, providing a larger allocation of API calls and potentially additional features or support levels.
• Enterprise Plan: Custom-tailored for large organizations with significant data processing needs, offering flexible call volumes, dedicated account management, and customized technical support.

A comparison of the standard plans is detailed in the table below, based on information available on the FullContact pricing page:

Overage charges apply if the included API call limit is exceeded within a given month for paid plans. These charges are typically calculated on a per-call basis, with the rate decreasing at higher volumes. The exact overage rates are specified on the FullContact pricing documentation and can vary by plan. Enterprise plans often feature more flexible overage arrangements or custom rate cards.

Free tier and limits

FullContact API provides a free tier that allows developers and small businesses to evaluate the service and integrate it into their applications without an upfront financial commitment. This free tier includes 500 API calls per month.

Key aspects of the free tier:

• Call Volume: Users receive 500 API calls each month. This limit resets at the beginning of each billing cycle.
• Access to APIs: The free tier typically provides access to the core Person and Company Enrichment APIs, allowing users to understand the data quality and integration process.
• Rate Limits: While specific rate limits (calls per second/minute) for the free tier are not explicitly detailed on the public pricing page, they are generally lower than those for paid plans to prevent abuse and ensure service stability. Developers should consult the FullContact API documentation for specific technical limits.
• Support: Support for the free tier is usually community-based or limited to basic documentation access, without dedicated technical assistance.
• Upgrade Path: Once usage exceeds 500 calls or additional features/support are required, users can upgrade to a paid plan, such as the Growth plan, to continue service without interruption.

The free tier is suitable for initial proof-of-concept development, small-scale personal projects, or for organizations that only need to enrich a very limited number of contacts monthly. It allows developers to test the API's capabilities and integrate it into their systems before committing to a paid subscription.

Real-world cost examples

Understanding FullContact API's pricing involves considering typical usage patterns. Here are a few hypothetical scenarios:

Scenario 1: Small Business Lead Enrichment

• Usage: A small marketing agency wants to enrich 2,000 new leads per month to personalize outreach. They use the Person Enrichment API.
• Plan: The Growth plan, which includes 5,000 API calls for $99/month, would be suitable.
• Cost: $99 per month. This covers their 2,000 calls well within the included limit.
• Rationale: The Growth plan offers sufficient capacity for their current needs without incurring overage charges.

Scenario 2: E-commerce Personalization

• Usage: An e-commerce platform processes 15,000 customer sign-ups monthly and uses the FullContact API for basic demographic and social profile enrichment to improve personalization.
• Plan: They would likely need a plan above Growth. If the Business plan starts at 25,000 calls, it might be the next step. If an intermediate plan exists (e.g., 10,000 calls at a higher rate + overage), that could also apply. Assuming their typical plan bundles 10,000 calls for $X and subsequent calls are $Y per 1,000.
• Cost Example (estimation based on typical tiered pricing): If a plan includes 10,000 calls for $250 and additional calls are $40 per 1,000: Base cost $250 + (5,000 overage calls * $0.04/call) = $250 + $200 = $450/month. (Note: Specific overage rates and plan tiers above Growth require direct inquiry or consultation of the FullContact pricing page for exact figures.)
• Rationale: The platform's volume exceeds the Growth plan, necessitating an upgrade to a higher tier or a custom arrangement.

Scenario 3: Enterprise Identity Resolution and Fraud Detection

• Usage: A large financial institution processes 200,000 identity verification requests per month, leveraging FullContact's Identity Resolution and enrichment features for fraud detection.
• Plan: An Enterprise plan would be required due to the high volume, security requirements (e.g., SOC 2 Type II compliance), and need for custom SLAs.
• Cost: Custom quote. Enterprise pricing is highly variable and depends on negotiated volume discounts, specific feature sets, dedicated support, and infrastructure requirements. The per-call cost would likely be significantly lower than standard paid tiers due to volume.
• Rationale: High transaction volume, critical use case, and compliance needs necessitate a bespoke enterprise agreement.

How the pricing compares

FullContact operates in the competitive data enrichment and identity resolution market, alongside providers like ZoomInfo, Clearbit, and Apollo.io. While direct, feature-for-feature pricing comparisons are complex due to varying data sources, enrichment capabilities, and billing models, some general distinctions can be observed:

• Transactional vs. Seat-based: FullContact's primary model is transactional (per API call or enrichment). Many alternatives, such as ZoomInfo, often offer seat-based licenses in addition to or instead of API usage fees, particularly for sales and marketing intelligence platforms that combine data access with CRM-like functionalities. Clearbit, a direct competitor, also employs a usage-based API pricing model, often with similar tiers of included calls and overage rates, making it a closer comparison in structure.
• Data Scope and Quality: The perceived value for money hinges on the breadth and accuracy of the data provided. FullContact emphasizes its identity resolution capabilities and GDPR/CCPA compliance, which can be a key differentiator influencing pricing justification for certain use cases FullContact Compliance. Competitors may specialize in different data types (e.g., B2B contact data for Apollo.io).
• Free Tiers: Most data enrichment APIs offer a free tier or trial period. FullContact's 500 free calls per month is competitive, providing sufficient volume for initial testing. For example, some alternatives might offer a similar number of trial credits or a time-limited evaluation. The availability and generosity of a free tier often reflect the vendor's confidence in their API's ease of integration and data quality.
• Enterprise Flexibility: For high-volume needs, all major players, including FullContact, offer custom enterprise pricing. The negotiation points typically involve volume discounts, dedicated support, custom data attributes, and service level agreements. The total cost for enterprise solutions is highly dependent on specific client requirements and data usage patterns.

When evaluating FullContact's pricing against alternatives, organizations should conduct a proof-of-concept with the free tiers or trials, comparing not just the per-call cost but also:

1. The accuracy and completeness of the data returned for their specific use cases.
2. The ease of API integration and developer experience, as documented in guides like Google Maps Geocoding API reference for another API example.
3. The level of customer support and compliance assurances (e.g., SOC 2, GDPR).
4. Any additional features, such as webhooks for real-time updates or integrations with popular CRMs, which might be bundled into higher-tier plans.

Ultimately, the "best" value is subjective and depends on an organization's specific data enrichment needs, budget, and desired outcomes.