Who We Insure

Insurance for API Providers

An API provider's product is a dependency. Customers wire your endpoints into the critical path of their own applications, so when your API is slow, down, or subtly wrong, their products break — often for many customers at once, and often at the worst possible moment. The distinctive exposure is not a single unhappy client but a fan-out: one bad deploy, one throttling misconfiguration, or one breaking change can cascade across every integration you serve, and each affected customer measures the harm by what their broken product cost them, not by your usage fee.

Why api providers carry specialized insurance

Because you sit that deep in customers' stacks, your contracts carry teeth. Service-level agreements promise uptime and set credits; master service agreements demand insurance limits, additional-insured status, and security attestations before customers route production traffic through you. Data usually flows through the API as well, so a security flaw becomes a breach that spans downstream customers, and procurement treats your SOC 2 posture and coverage as gating requirements. Investors expect D&O before they fund a round. The insurance program becomes part of the reliability story you sell. A OnePark Risk advisor structures an API provider's program around how failures propagate and how liability is allocated in your agreements — the difference between SLA credits and consequential-damages claims, what your uptime and breaking-change commitments actually promise, and where data moving through the API creates breach exposure. Those answers determine how a service-failure claim lands on your technology errors coverage and where the cyber form has to respond in the same breath.

The risk profile of an API provider

API risk is defined by fan-out and by contract: a single defect propagates across many customers simultaneously, and the SLAs and indemnities you sign determine how much of the resulting loss reaches your balance sheet. Key exposures: Outages and degraded performance that cascade across every integrated customer at once; Breaking or undocumented changes that silently break customer integrations; Rate-limiting and throttling misconfigurations that block legitimate production traffic; Security flaws in the API surface that expose data across downstream customers; SLA and consequential-damages exposure when customer products fail during peak windows; Data-in-transit and access-control risk as sensitive records pass through your endpoints; Employment and securities exposure that scales with headcount and funding.

Technology E&O + Cyber (combined form) for api providers

The anchor for an API provider, because your two worst days live here. Technology E&O answers when your service fails — an outage, a breaking change, a wrong response — and a customer claims financial harm; the cyber side funds breach response and third-party liability when data moving through the API is exposed. API incidents are frequently both at once — a security flaw that also takes the service down — so a combined form removes the gap where two carriers would otherwise argue over which failure came first. Typically responds to: customer claims of financial loss from outages, errors, or breaking changes; breach response: forensics, notification, and regulator communications; third-party privacy and network-security liability when API data is exposed; cyber-extortion, ransomware, and business-interruption loss from downtime.

Directors & Officers (D&O) for api providers

Protects founders' and directors' personal assets against claims from investors, regulators, and creditors, and most institutional term sheets require it at closing. For infrastructure companies whose reliability commitments carry real financial weight, deliberate D&O structuring is worth more than a checkbox.

Employment Practices Liability (EPLI) for api providers

Scaling engineering, support, and go-to-market teams generates discrimination, harassment, and wage-and-hour claims that are expensive to defend regardless of merit. EPLI funds that defense and is commonly packaged with D&O for venture-backed companies.

General Liability & Property (BOP) for api providers

Premises liability for office visitors and coverage for the company's own equipment, bundled at a favorable rate. It is the routine certificate landlords and enterprise procurement require before a lease or vendor relationship begins.

Workers' Compensation for api providers

Required in every state where the company employs anyone, including remote engineers and on-call staff. Distributed API teams should confirm coverage tracks each state where employees actually work.

Contract and certificate requirements

API customers routing production traffic through you negotiate both reliability and insurance. Master service agreements commonly require Technology E&O and cyber coverage at stated limits — $1 million to $5 million is the usual range, higher where the API is mission-critical or carries sensitive data — plus additional-insured status, primary-and-noncontributory language, and evidence of a security program. The SLA is a distinct but related issue: service credits cap some exposure, but customers increasingly seek consequential-damages recovery for outages, and how that liability is drafted determines how much reaches your coverage rather than your P&L. Investor documents require D&O at closing, and leases require general liability certificates as standard. A OnePark Risk advisor reads the insurance, limitation-of-liability, and SLA sections of your customer agreements against your actual policies, so limits, endorsements, and additional-insured wording match your commitments — and so the boundary between contractually capped credits and insurable damages is clear before an outage tests it.

What coverage costs

As of 2026, pricing for an API provider is driven by how critical your endpoints are to customers, the number and profile of integrations you serve, the sensitivity of the data passing through, your reliability and security controls, funding stage, and the limits your contracts require. An API embedded in customers' revenue-critical flows underwrites more conservatively than a peripheral utility, because an outage or defect fans out into many simultaneous claims. The cyber portion follows your controls directly — API authentication and access control, encryption in transit, rate limiting, monitoring, tested backups, and a documented incident-response and change-management process are what underwriters ask about first, and demonstrable discipline improves terms. IBM's Cost of a Data Breach Report 2026 put the global average breach cost at $4.99 million, and for an API provider a single flaw can expose data spanning many downstream customers, which keeps controls central to the underwriting. Rather than quoting a single number, a OnePark Risk advisor benchmarks the specific company across the carriers active in technology and infrastructure risk and shows how limits, retentions, and the way your uptime and data handling are described move the premium — so the tradeoffs are visible before a customer agreement sets the requirement.

AI exposure note

Many API providers now expose AI-powered endpoints or route requests to models on customers' behalf. If yours does, disclose it in underwriting and review how your Technology E&O form treats algorithmic error, because a wrong or degraded AI response returned through your API can generate the same financial-loss claim as an outage. Carriers are adding both AI-specific exclusions and affirmative AI coverage, and the difference between forms is widening — worth a specific read at each renewal.

Illustrative example: The cascading outage

A bad deploy takes a core endpoint down during a high-traffic window. Hundreds of customers' products fail simultaneously, and one customer whose checkout flow depends on the API claims substantial lost revenue beyond the service credits its SLA provides. Technology E&O responds to the covered portion of the customer's financial-loss claim and funds defense, while the limitation-of-liability and SLA terms negotiated at placement shape how much of the loss is contractually capped versus insurable — the reason those clauses are reviewed alongside the policy.

Illustrative example: The silent breaking change

An undocumented change to a response format ships without a version bump. A customer's integration continues to run but begins misprocessing transactions for days before the discrepancy is caught, and the customer demands recovery for the resulting errors and remediation. Technology E&O responds to the customer's claim and funds defense and negotiation, with coverage turning on how the platform's change-management and versioning practices are described at placement — a detail that matters as much for API providers as security controls do.

Illustrative example: The exposed endpoint

A broken access-control flaw in the API lets an attacker retrieve records belonging to multiple customers by manipulating request parameters. The exposure spans downstream customers and triggers notification obligations across accounts. The cyber side of the combined form funds forensics, extortion response if applicable, notification across every affected customer, and third-party privacy liability — and because the flaw is both a security failure and a service defect, the combined structure keeps one carrier on the claim rather than two disputing coverage.

How much does insurance cost for an API provider?

There is no flat rate. As of 2026, pricing turns on how critical your API is to customers, the number and profile of integrations, the sensitivity of the data passing through, your reliability and security controls, funding stage, and the limits your contracts require. Many providers structure Technology E&O and cyber at $1 million to $5 million and scale with enterprise demand; the right way to size premium is to benchmark the specific company across several carriers rather than rely on a single quoted number.

Does our insurance cover losses when our API goes down?

It can — an outage claim where a customer alleges financial harm is the kind of allegation Technology E&O addresses — but how much reaches coverage depends on your SLA and limitation-of-liability terms. Service credits contractually cap some exposure, while consequential-damages claims beyond those credits are where insurance matters, so the contract and the policy need to be read together.

What's the difference between SLA credits and an insurable claim?

SLA credits are a contractual remedy you agree to provide for missed uptime, and they typically cap that portion of your exposure. An insurable claim arises when a customer pursues damages beyond those credits — lost revenue or remediation costs from an outage, error, or breaking change. A OnePark Risk advisor reviews how your agreements draw that line so you know which failures land on your policy versus your P&L.

Do we need Tech E&O and cyber as separate policies?

For an API provider a combined form is usually the better structure. API incidents are frequently both a service failure and a data event at the same time — a security flaw that also causes downtime — and a single carrier with one set of definitions avoids the finger-pointing that separate policies invite when an incident straddles both.

What limits and endorsements do enterprise customers require?

Commonly $1 million to $5 million in Technology E&O and cyber, higher for mission-critical or data-sensitive APIs, alongside additional-insured status, primary-and-noncontributory language, and evidence of a security program. The insurance exhibit in the customer's agreement is the checklist — bring it to your advisor before signing rather than after a procurement reviewer flags a gap.

How do underwriters view reliability and security for an API?

Closely. Expect questions about authentication and access control, encryption in transit, rate limiting, monitoring, change management and versioning, tested backups, and incident response. Providers that document those controls consistently see better terms, and for context on the stakes, IBM's Cost of a Data Breach Report 2026 put the global average breach cost at $4.99 million.

Can OnePark Risk review our contracts without moving our current coverage?

Yes. A coverage and contract review changes nothing on its own. We compare your customer agreements' insurance, SLA, and limitation-of-liability terms against your current policies, flag mismatches in limits and additional-insured language, and you decide whether to act.

Frequently asked questions