How does authentication work?
All endpoints use bearer-key authentication. Pass your API key in the Authorization header as Bearer YOUR_API_KEY. Keys are generated immediately from the API Dashboard after subscribing — no wait, no approval process.
What counts as a credit?
Credits are consumed per call: 1 credit per record from the funding feed; 2 credits for hiring signals or similar companies; 3 credits for an investor profile, tech stack, or founder data; 5 credits for a full enriched company profile or investor portfolio. MCP calls consume the same credits as the equivalent API call.
What are the rate limits per plan?
Solo: 30 requests/minute. Growth: 60 requests/minute. Scale: 120 requests/minute. Exceeding the per-minute limit returns a 429 rate_limited response. Exceeding your monthly credit quota returns a 429 quota_exceeded response — the two are enforced independently.
How fresh is the data?
Data freshness varies by plan. Scale receives daily-refreshed data with no delay. Growth data has a 3-day lag. Solo data has a 7-day lag. If timing is critical to your workflow — reaching funded companies before competitors — Scale is the right tier.
Can I look up a company by domain?
Yes, on all plans including Solo. The /companies/lookup?domain= endpoint resolves a company from its website URL and returns funding history, investors, tech stack, and signals. It costs 5 credits per lookup (full company profile).
Does the Growth plan include Clay / Zapier format?
Yes. Growth and Scale plans support a flat response format via the format=flat parameter, designed for direct ingestion into Clay, Zapier, Make, and similar tools without any transformation step. Solo plan returns structured JSON only.
How do I check my credit balance?
From the API Dashboard under your account. If you use the MCP server, you can also ask your AI assistant directly — "What's my credit balance on LatestRounds?" is a supported tool call that returns your current usage and remaining credits.
What happens when credits run out?
All requests beyond your monthly quota return a 429 quota_exceeded error. Credits are enforced atomically — you will never be charged overages or silently degraded. You can upgrade your plan from the API Dashboard at any time.
Do unused credits roll over?
Credits reset on your monthly billing date and do not roll over. Plan accordingly — if you consistently have leftover credits, you may be on a higher tier than you need.
Are there refunds?
No. All payments are non-refundable. Once an API key is issued and credits are accessed, you are no longer eligible for a refund. See our Terms of Service for full details.
Can I use this data in my product?
Yes — you can build products and internal tools powered by the API. You may not resell or redistribute the raw data as a standalone data product. If you have a custom use case, email us.
