# DNC Finder, free: Do-not-call check API

> Real-time, automated screening of outbound phone numbers across 8 distinct databases to protect campaigns from TCPA violations.

DNC Finder's 48-Hour Free Trial plan for the do-not-call check API costs $0.00 per 1,000 phones. We check each provider's docs for 8 fields. DNC Finder's docs list 3: Any register, Litigators, Place.
DNC Finder limits how many calls you get but gives no number.
We haven't run a do-not-call check API benchmark yet.
This plan is free. We rank 90 plans for do-not-call check APIs by price. Half the plans cost $7.468 or less per 1,000 phones.
[DNC Finder's $48 monthly plan](https://datacircle.dev/do-not-call-check-apis/dnc-finder/48-monthly/llms.txt) costs the least per 1,000 phones, for the United States only, with no charge per call. You get as many phones as DNC Finder's rate limit allows. [TPSCheck's £289 yearly plan](https://datacircle.dev/do-not-call-check-apis/tpscheck/289-yearly/llms.txt) costs the least for 10,000 phones a month: about $32.12.
[DNCSweeper's $149 monthly plan](https://datacircle.dev/do-not-call-check-apis/dncsweeper/149-monthly/llms.txt) covers any number of phones in the United States only, and costs more up front than DNC Finder's $48 monthly plan.

- This page: https://datacircle.dev/do-not-call-check-apis/dnc-finder/free
- Get it: https://dncfinder.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- Request: `POST https://dncfinder.com/api/v1/litigation-firewall/check`
- API key: with the plan, on https://dncfinder.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- Its API docs: https://dncfinder.com/api-docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- Sold by: DNC Finder (https://dncfinder.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing)
- Checked: 2026-11-13

## In the answer

- Completeness: 38%
- Any register: ✓
- Litigators: ✓
- Place: ✓

## Price

- $ per 1,000 phones: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Real-time, automated screening of outbound phone numbers across 8 distinct databases to protect campaigns from TCPA violations.

## Data

- Freshness: 1 day
- Countries: United States
- Keep data: no limit
- Use data: Subject to payment and these Terms, Fusion Leads LLC grants you a limited, non-exclusive, non-transferable, revocable right to use the Service and derived results for lawful internal business and compliance-support workflows. You may share your derived reports with authorized personnel, identified seller-clients, counsel, auditors, insurers, and regulators where lawful and permitted by source restrictions. You may not sell, publish, sublicense, reconstruct, scrape, or distribute an underlying provider or registry dataset [...] You may not: Facilitate unlawful calls, texts, harassment, fraud, discrimination, or privacy violations, Submit data without authority, Present results as legal authorization, certification, or guaranteed compliance, Resell raw provider data or reconstruct a registry or provider database, Circumvent authentication, rate limits, source restrictions, usage controls, or security, Scrape a provider or use unauthorized automation, Upload malware or interfere with operation, Publicly accuse a person of wrongdoing based only on a provider match.

## Plan

- Pay: $0

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: phone, Content-Type header "application/json"
- Method: POST
- Path: /api/v1/litigation-firewall/check

## About the plan

- Plan: 48-Hour Free Trial
- Who can get it: anyone at least 18 and legally able to enter a contract, for National DNC Registry access, the caller or seller holds its own Subscription Account Number

## The 25 fields the plan's answer can hold

success, phone number, overall status, screened at, screening notice, litigator status, litigator result text, blacklist status, blacklist result text, DNC status, DNC result text, social analytics status, social analytics result text, closers DNC status, closers DNC result text, old closers DNC status, old closers DNC result text, invalid phone status, invalid phone result text, VoIP status, VoIP result text, ZIP code, city, state, county

## DNC Finder's plans (2)

- [DNC Finder, free](https://datacircle.dev/do-not-call-check-apis/dnc-finder/free/llms.txt): $0.00 per 1,000, 38% complete, 1 day
- [DNC Finder, $48 monthly](https://datacircle.dev/do-not-call-check-apis/dnc-finder/48-monthly/llms.txt): $0.018 per 1,000, 38% complete, 1 day

## DNC Finder's calls (1)

- `POST /api/v1/litigation-firewall/check`: [DNC Finder, free](https://datacircle.dev/do-not-call-check-apis/dnc-finder/free/llms.txt)

## DNC Finder's APIs (1)

- [DNC Finder Do-not-call check API pricing, 2 plans](https://datacircle.dev/do-not-call-check-apis/dnc-finder/free/llms.txt)

## DNC Finder: do-not-call check API alternatives

[DNC Finder alternatives: other do-not-call check API providers by price](https://datacircle.dev/dnc-finder-alternatives.txt)

We list DNC Finder's cheapest paid plan first. Next we list other providers' plans closest to DNC Finder in price per 1,000 phones. Each plan in the list gives live data or data at most a day old.

- [DNC Finder, $48 monthly](https://datacircle.dev/do-not-call-check-apis/dnc-finder/48-monthly/llms.txt): $0.018 per 1,000, 38% complete, 1 day
- [TPSClear, £8,745 yearly](https://datacircle.dev/do-not-call-check-apis/tpsclear/8745-yearly/llms.txt): $0.324 per 1,000, 38% complete, 1 day
- [TPS API, £4,800 pack](https://datacircle.dev/do-not-call-check-apis/tps-api/4800-pack/llms.txt): $0.492 per 1,000, 38% complete, 1 day
- [tpsmydata, £2,500 pack, 5,000,000 credits, GET /tps_multi_check](https://datacircle.dev/do-not-call-check-apis/tpsmydata/2500-pack-5000000-credits-get-tps-multi-check/llms.txt): $0.667 per 1,000, 63% complete, 1 day
- [121prodata, £2,200 pack, 4,000,000-4,999,999 tel. numbers, POST /api/](https://datacircle.dev/do-not-call-check-apis/121prodata/2200-pack-4000000-4999999-tel-numbers-post-api/llms.txt): $0.733 per 1,000, 13% complete, 1 day

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-13.

- https://dncfinder.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- https://dncfinder.com/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- https://dncfinder.com/api-docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- https://dncfinder.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing
- https://dncfinder.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=do-not-call-check-api-pricing