> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sixtyfour.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Product updates and release notes from Sixtyfour.

<Update label="June 2026" description="June 2026 release notes">
  ## Platform

  * [API Playground](https://app.sixtyfour.ai/playground) — quickly explore and test every endpoint with copyable code snippets and inline results.
  * [Roles & Permissions](/guides/roles-and-permissions) are now available for organizations to manage team access and account configuration.
  * **Block-by-block workflow execution in Agent Chat** — dual-panel UI runs blocks live with inline result tables.

  ## API & Data

  * **IP Intel** tool added to high-tier enrichment for IP address profiling.
  * **Verify Email** tool added to V3 Enrichment for checking email deliverability.
  * **OSINT tooling improvements** — expanded scanners for email, phone, and username lookups.
  * [Check Credit Balance Endpoint](/api-reference/account/check-balance) — retrieve your credit balance via API or MCP.
  * [Bulk Intelligence Endpoints](/api-reference/endpoint/bulk-intelligence) — upload a CSV or JSON file of up to 100,000 leads or companies for enrichment in a single job.
  * [Micro tier](/guides/credits-and-pricing#intelligence-pricing) now available for People and Company Intelligence, returning up to 5 fields.
  * **Search Exclusions** — suppress people or companies from `/search/query` and deep search using inline IDs or reusable [exclusion lists](/api-reference/search/search-exclusions) of up to 250,000 entries.
  * **Performance & reliability improvements** for high-volume intelligence enrichment.
  * **Enum field type in struct builder** — constrains LLM inputs to `Literal[...]` options instead of free-form strings; supports `list[enum]` for multi-select.
  * [Confidence scores](/api-reference/endpoint/field-confidence) now include sources — returns the exact URLs each value was sourced from.
  * **JSON/NDJSON workflow input/output** — workflows now support JSON, JSONL, and NDJSON in addition to CSV.

  ## Dev Tools

  * **MCP server polling** — async result polling is more reliable.
  * **Check Balance** added to the [MCP server](/developer-tools/mcp-setup) — agents can now check their credit balance.
  * **Find Email and Find Phone** added to the [MCP server](/developer-tools/mcp-setup) — agents can start discovery jobs and poll results.
  * **People and Company Intelligence** added to the [MCP server](/developer-tools/mcp-setup) — agents can start enrichment jobs and poll results.
</Update>

<Update label="May 2026" description="May 2026 release notes">
  ## Platform

  * **Settings** are now in their own Navigation section in the Sixtyfour Platform so it's easier to find and manage.
  * New users will have **organizations automatically created** for them when they sign up so they can start using the platform right away.
  * Improved **onboarding experience** for new users to make it easier to get started with Sixtyfour.
  * A new [Home](https://app.sixtyfour.ai/) page in the Sixtyfour Platform has been added to help you get started more quickly.
  * [Expanded Workflow Template Categories](/guides/workflow-templates) — New categories added: Intelligence, Deanonymization, Finance, Trust & Safety, Background Checks, OSINT, AML/KYC; tier-gated for appropriate access levels.
  * **Platform Signup / Login** now has captcha protection to prevent spam signups and brute force attacks.
  * New [Verify Phone](/api-reference/workflows/workflow-blocks#available-blocks) block in the Workflow Builder. Returns number validity, carrier, line type, activity score, prepaid flag, and country signals for phone numbers in any workflow.
  * An improved [Agent Prompt Library](https://app.sixtyfour.ai/chat) is now available in the Sixtyfour Platform to aid you in building your own custom prompts for the Sixtyfour Agent.

  ## API & Data

  * [Per-field confidence scoring](/api-reference/endpoint/field-confidence) for people intelligence results is now available for certain customers in early access.
  * **Verify Phone Block** now uses additional real-time data sets to validate phone numbers more accurately.
  * You can now set individual [API key expiration](/get-api-key#set-key-expiration) for API Key rotation management.
  * More accurate [People Filter Search](/api-reference/search/filter-search) when filtering by company criteria. Combining multiple company filters (such as title, size, and funding) now matches people whose current company meets all of them together, instead of matching people across different past or current companies.
  * Improved field normalization for [Reverse Email](/api-reference/endpoint/reverse-email) enrichment workflows. Workflows that begin with a Reverse Email step now correctly carry domain and company data ensuring the full signal set from a Reverse Email result is available to every subsequent step of the workflow.

  ## Dev Tools

  * [Agent Skills](/developer-tools/skills) are now available for the Sixtyfour Platform to help you use the Sixtyfour Agent more effectively with coding assistants (Claude Code, Cursor, etc.).
  * A complete API Reference is now available in [Docs](/api-quick-start) to help you build your integration with Sixtyfour faster.
</Update>

<Update label="April 2026" description="April 2026 release notes">
  ## Platform

  * [Agent Preferences](/guides/using-agents#agent-preferences) is now available under your account settings. You can provide the Sixtyfour Agent instructions and context for the agent when responding to conversations.
  * [Usage Logs Export](/guides/usage-logs#exporting-logs) is now available. You can now export up to 10k rows of API usage history to a CSV file.
  * **Agent Thinking Mode** is now available for agent queries and will run when required by the agent based on the query's context.
  * In the Workflow editor, an **Enrichment Struct** can now return nested fields.
  * **Deep Search** now uses a more robust model to improve the quality of the results.
  * [YOLO Mode](/guides/using-agents#yolo-mode) is now available in Agent Preferences. Enable it to let the Agent auto-approve tool actions without confirmation.
  * **Platform Access for All Free Tier Users**. Free tier users now get full platform access and can use the Agent, run Searches, and build Workflows.
  * **Low Balance Email Notifications** — Users now receive email alerts when their credit balance is running low.
  * **Row Streaming in Workflow Previews**. Rows now appear in real-time in the workflow preview data tab as each job completes, instead of waiting for the whole block to finish.

  ## API & Data

  * Enrich Leads and Enrich Company APIs are now known as: [People Intelligence](/api-reference/endpoint/people-intelligence) and [Company Intelligence](/api-reference/endpoint/company-intelligence). You can still use the old endpoint names, as that naming convention is still supported for backward compatibility.
  * [V3 Company Intelligence OSINT Mode](/api-reference/endpoint/company-intelligence#tiers) — high mode can deliver OSINT-level intel data for beta users who have access to the feature.
  * [Company V3 Intelligence](/api-reference/endpoint/company-intelligence) now tracks structured source citations (url, section, evidence quote) per finding.
  * [Signing Secrets & Verification](/api-reference/webhooks/signing-secrets) is now available for [outbound webhooks](/api-reference/webhooks/outgoing). You can now sign and verify Sixtyfour webhook deliveries with HMAC-SHA256.
  * [V3 Company & People Intelligence Tiers](/guides/credits-and-pricing#intelligence-pricing) now General Availability — Low / Medium now available to all Orgs. High is available to enterprise customers only.

  ## Dev Tools

  * **[Filter Search MCP](/developer-tools/mcp-setup#filter-search-mcp) reliability improvements** — Increased rate limits and made MCP more stable.
</Update>

<Update label="March 2026" description="March 2026 release notes">
  ## Platform

  * SSO / SAML authentication is now available for enterprise customers.
  * Improvements to the [Agent's](/guides/using-agents) ability to understand and execute complex tasks.
  * User Experience improvements to the Agent's UI.
  * User Experience improvements to the [Workflow editor](/guides/building-workflows).

  ## API & Data

  * [Organizational chart feature](/api-reference/endpoint/company-intelligence#find_people-vs-full_org_chart) for company research—now returns complete team structures with department grouping and seniority classification, enabling deeper research.

  ## Dev Tools

  * New MCP server for [Filter Search](/developer-tools/mcp-setup#filter-search-mcp)
</Update>