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Why a DataNewton API Key Stops Returning Company Results
A DataNewton API key usually stops returning results because of the shared test key, an exhausted request limit, a plan gap, or rate limiting. Here is how to fix each.
Key takeaways
The shared test key in the DataNewton docs only works for a limited list of INNs and OGRNs.
Demo access gives 200 units, and extended methods need a paid plan.
Exceeding 200 requests per minute per key returns HTTP 429.
Batch methods spend units per company returned, not per request.
A DataNewton API key stops returning company results for four documented reasons. You are using the shared test key, your units are spent, your plan does not include the method, or you hit a rate limit. Check them in that order.
Why does my DataNewton key return nothing for most companies?
The most likely cause is the shared test key from the docs, which only works for a limited list of INNs and OGRNs. Requests for any other company return no results, according to the DataNewton API documentation.
Your personal key becomes available after registration, and API access requires choosing a plan. If you copied the key from the docs page into your AI assistant prompt, replace it with the key from your account.
Can my DataNewton demo units run out?
Yes, demo access is capped. On registration, DataNewton issues demo API access with a limit of 200 units, and extended access to methods requires a paid plan.
On request package plans, the limit is spent per request. For most methods one request costs one unit, while batch methods deduct by the number of companies in the response, as the DataNewton pricing page explains.
The official pages do not say what the API returns when units run out or a plan expires. They also do not say whether the demo limit expires with time. Ask DataNewton support for those details.
Does my DataNewton plan include the method you are calling?
Available methods depend on your plan, so a key can work for one endpoint and return nothing for another. According to the DataNewton pricing page, the free Ноль рублей tier (12,000 requests) covers only basic data and suggestions.
Старт (20,000 ₽/year) adds general info with contacts, finance and taxes/fines.
Оптимум (30,000 ₽/year) adds links, risks and arbitration cases.
Профи (40,000 ₽/year) adds bankruptcy, scoring, batch processing and domain search.
If you want founder contacts for outreach, compare your plan against the contacts method before blaming the key.
What happens when you hit the DataNewton rate limit?
Exceeding the limits returns HTTP 429 (Too Many Requests). The documented limits are 200 requests per minute per API key, 100 per minute per key for batch methods, and 10 TCP connections per IP address.
AI assistants that loop over many companies can hit these limits quickly. Ask the assistant to pace requests and retry after a pause.
How do you diagnose a silent DataNewton key step by step?
Work through the causes from cheapest to most expensive to check. This sequence takes a few minutes.
Confirm the key comes from your own account, not from the docs page.
Test one company you know exists, using a basic data method.
Check your plan page for the method you are calling.
Look at your remaining units in your DataNewton account.
Watch for HTTP 429 and lower your request rate.
Contact DataNewton support if none of these match, since key expiry rules are not documented publicly.
How does this affect a DataNewton to crmchat prospecting workflow?
A dead DataNewton key stops the whole chain, because company lists feed every later step. The decision-maker workflow starts with DataNewton filters by OKVED and revenue, then moves to founder lookup.
crmchat lets you connect an AI assistant to the contact-lookup bot @crmchatcontactbot that finds founder phone numbers for the companies DataNewton returns. crmchat also includes a Phone → Telegram tool under Instruments that converts those numbers into Telegram usernames for a CSV.
Your crmchat key comes from Settings → API Keys, and the crmchat API uses Bearer keys prefixed with sk_. For related setups, read about a Telegram-first martech stack, how to cross-reference LinkedIn exports, and registry data checks.
FAQ
Why does my DataNewton API key return empty results?
You may be using the shared test key, which only works for a limited list of INNs and OGRNs. Switch to the key from your own account and confirm your plan includes the method.
How many requests does the DataNewton demo include?
Demo access comes with 200 units. Extended access to methods requires choosing a paid plan.
What does HTTP 429 mean in the DataNewton API?
It means you exceeded a documented limit: 200 requests per minute per key, 100 for batch methods, or 10 TCP connections per IP. Slow down your requests and retry.
Does a DataNewton API key expire?
The official docs do not describe key expiry or revocation rules. Contact DataNewton support to confirm the status of your key.
