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General

Browsing and searching are free, forever. You can search the directory, view entries, read source attributions, and use the public API at the public unauthenticated limit without paying anything.Professional research tools — unlimited research runs, exports, API keys, and MCP access — require Atlas Pro (5/month)or[AtlasTeam](/account/pricing)(5/month) or [Atlas Team](/account/pricing) (25/month base).
Atlas’s autodiscovery pipeline searches across public sources: local news articles, nonprofit directory listings, organizational websites, academic research, government records, podcasts, and more. Every entry traces back to the specific sources where the information was found. See How Atlas works for the full pipeline breakdown.
Each entry shows when it was first discovered and when its most recent source was published. The pipeline runs on demand (when users start discovery runs) and can be scheduled for periodic refreshes. Source dates tell you how fresh the information is — check the published_date on each source.
Yes. You can flag an entity as stale or incorrect directly through the API or browse interface — no account required. Flags are reviewed and resolved by Atlas maintainers.
Yes. Atlas is open source on GitHub. You can run your own instance — see the self-hosting guide. Contributions are welcome.
Atlas is maintained by The Rebuilding America Project. It was created to support civic research and designed to stand on its own as an independently useful public resource. See Open source for more.

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API & integration

The public API is available to everyone without authentication at 30 reads per minute, 10 writes per minute, and 120 total requests per hour. For higher limits and authenticated endpoints (creating entities, running discovery), you need Atlas Pro, Atlas Team, or a Research Pass and an API key. Create one in your account settings after purchase.
Atlas supports the Model Context Protocol (MCP) for compliant AI assistants. Use your client’s remote MCP server flow with the Atlas endpoint in the MCP overview. MCP requires Atlas Pro, Atlas Team, or a Research Pass.
MCP lets you use Atlas through AI assistants in natural language — you ask questions and get structured answers. The REST API gives you programmatic access for building integrations, scripts, and applications. Under the hood, MCP tools call the same API — they’re different interfaces to the same data.Use MCP for conversational research. Use the API for automation, embedding, and custom integrations.
Yes. The REST API is designed for integration. Authenticated requests with an API key give you access to all public data. See the API quickstart to get started.
All responses are JSON. Field names use snake_case and timestamps use ISO 8601 in UTC. See the API guide for full format details.

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Accounts & billing

No account is needed to browse the directory or use the public API. You need an account to save shortlists, run research, use MCP, or create API keys.
A one-time purchase (9for30days,9 for 30 days, 4 for 7 days) that gives one person Team-level quotas temporarily without shared seats, SSO, or SCIM. When it expires, your workspace reverts to Free but your saved research remains accessible read-only. See Plans & pricing.
Yes. Students can get Atlas Pro for $12.80 every four months after verification. Independent creators and journalists get 50% off Pro. Grassroots nonprofits get 40% off Pro. Civic tech workers get 50% off Pro. Apply at atlas.rebuildingus.org/request-discount. Applications are reviewed within a few business days.
The public directory stays free. Paid plans cover professional research, collaboration, API, and automation features for people and organizations using Atlas in funded work. That revenue keeps the free public surface available and makes discounts and short-term access possible for public-interest work. If a funded team needs shared administration, SSO, or SCIM, it should pay for Team rather than use an individual discount.
Yes. Atlas subscriptions can be cancelled at any time through the Stripe Customer Portal linked from your account settings. You retain access until the end of your billing period.