Sixtyfour API

Find email addresses for a batch of leads; returns a job ID to poll.

Find email addresses for a batch of leads in one call.

Find a single person's email; returns a job ID to poll.

Find a single person's email address.

Find phone numbers for a batch of leads; returns a job ID to poll.

Find phone numbers for a batch of leads in one call.

Find a single person's phone number; returns a job ID to poll.

Find a single person's phone number.

Resolve people from a batch of email addresses; returns a job ID to poll.

Resolve people from a batch of email addresses in one call.

Resolve a person from their email address; returns a job ID to poll.

Resolve a person from their email address.

Resolve people from a batch of phone numbers; returns a job ID to poll.

Resolve people from a batch of phone numbers in one call.

Resolve a person from their phone number; returns a job ID to poll.

Resolve a person from their phone number.

Find and enrich a single person; returns a job ID to poll.

Find and enrich a single person.

Find and enrich a single company; returns a job ID to poll.

Find and enrich a single company.

Run a research agent that answers a question about a person or company; returns a job ID to poll.

Run a research agent that answers a question about a person or company.

Poll the status of an async job and retrieve results when complete. cost_units="credits" returns cost fields in credits (charge_credits, cost_credits) instead of cents fields (charge_amount, cost_cents); the charge itself is unchanged.

Returns the current credit balance for the organization associated with the API key.

Fetch a LinkedIn profile and extract structured fields in a single LLM call.

Upload a CSV/JSON/NDJSON file and start a background bulk intelligence run. Poll `GET /job-status/{task_id}`; while running the response includes `progress` with the rows enriched so far out of the total, and on completion it includes signed download links, `results_url` (the run in the Sixtyfour app, where a signed-in user can download the full files), and `charge_amount` (total cents charged). Row-level failures pass through un-enriched; source-block failures fail the run.

Upload a CSV/JSON/NDJSON file and start a background bulk intelligence run. Poll `GET /job-status/{task_id}`; while running the response includes `progress` with the rows enriched so far out of the total, and on completion it includes signed download links, `results_url` (the run in the Sixtyfour app, where a signed-in user can download the full files), and `charge_amount` (total cents charged). Row-level failures pass through un-enriched; source-block failures fail the run.

Resolve seeds and start the async lookalike workflow.

Poll lookalike progress and return generated filters on completion.

Start a deep, agentic search from a natural language query. Returns a task ID to poll.

Query the status of any async search task (deep search or export).

Poll the status of a deep search task and retrieve results when complete.

Generate a 15-minute signed download URL for a search result.

Get the fields, operators, and limits supported by filter search.

Run a synchronous structured-filter search and return matching rows with cursor pagination.

Return platform filter suggestions without exposing OpenSearch to WebApp.

Get the top values by count for a single filter-search field.

List the current user's decrypted search history for Logs. The cursor uses the Logs page's existing ``{"v", "t"}`` boundary, so the BFF can merge this source with workflow/API candidates without a second pagination implementation.

Return a decrypted saved-search envelope to its owner or active team. Returns 404 (never 403) for inaccessible IDs so the endpoint is not an existence oracle. ``parsed_query`` includes durable replay metadata needed for hydration, while server-only ranking metadata remains private.

Run a search query. Provide exactly one query source: query, simple_filters, filters, parsed_query, or search_id. For pagination, pass cursor alone.

Export search results as a CSV file. Poll /search/status/{task_id} for a presigned download URL when complete.

Research a subject into a new Atlas investigation. The investigation is created and returned immediately, so its workspace and graph can be read while the run is still going. It is stamped with the calling credential's team, which is what decides who else can see it.

Run again into an investigation you already have. The run reuses that investigation's graph and workspace, so a follow-up builds on the earlier research instead of starting over. Resolved through the same scope as every other by-id route, so an investigation the caller may not see answers 404.

Check whether one email address can receive mail. Responds in about a second.