Sixtyfour

Agent-enablingPaid

Sixtyfour supplies agent builders with structured people and company intelligence through APIs, workflows, webhooks, and MCP search tools. Use it when an agent needs identity resolution, relationship context, contact discovery, or organization research before recruiting, sales, due-diligence, trust, or risk actions.

Enrichment workflows and intelligence-grade profiles for people and companies

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Overview

About Sixtyfour

Sixtyfour is an enrichment platform for people and company intelligence. The current product centers on multi-step enrichment workflows, built-in search spaces, and structured profile outputs that combine contact, social, and proprietary data into decision-ready records.

Features

Multi-step enrichment workflows for leads, companies, and research targets
Search spaces for people discovery, verified emails, phone numbers, and decision makers
Structured company and lead enrichment outputs with references and confidence scores
Notebook-style and automation-first workflows for recurring enrichment jobs
APIs and tutorials for company and lead enrichment inside agent systems

So agents can…

Find likely decision makers, verified contact paths, and firmographic details for outreach
Enrich sparse person or company records before a downstream agent writes or calls
Build research pipelines that output structured profiles instead of loose web notes

Listing decision

Why Sixtyfour is listed

Sixtyfour’s APIs, searches, MCP tools, and enrichment workflows supply external agents and applications with researched people and company context; although it also includes an in-product agent, its directory role is primarily agent-enabling.

Before you choose

Fit and limitations

Best for

Due-diligence, KYC/KYB, recruiting, sales-intelligence, trust, and risk workflows that need structured people or organization research, contact discovery, filtering, or batch enrichment.

Known limitations

Use requires an account and API key, most operations consume credits, and high-tier intelligence is enterprise-only. Personal and company intelligence can be incomplete or inaccurate, so consequential decisions need source review, lawful data handling, and independent verification.

Not yet verified

The reviewed first-party material does not publish independently reproduced accuracy, coverage, freshness, or confidence-calibration results. Dataset composition and source availability can change, and actual rate limits or regional processing guarantees were not established by this review.

Sources

Sources and verification

First-party unless marked otherwise. Each link supports only its adjacent claim.

Sixtyfour introduction — people and entity intelligence
Sixtyfour documents a hosted intelligence service for researching and enriching people and organizations, resolving identities, mapping relationships, and returning structured source-backed answers through APIs and agents.
official documentation · accessed Sep 3, 2026
Sixtyfour API quickstart — endpoint families and authentication
The API quickstart requires an API key and lists people and company intelligence, contact discovery, deep and filter search, webhooks, agents, and workflow-management endpoints.
official documentation · accessed Sep 3, 2026
Sixtyfour MCP setup — documentation and filter-search servers
Sixtyfour provides remote MCP servers for documentation lookup and authenticated people/company filter search from compatible agent clients and IDEs.
official documentation · accessed Sep 3, 2026
Sixtyfour credits and pricing — plans and per-operation costs
The official pricing guide documents a credit-based service with plan allowances, per-operation costs, top-ups, and enterprise-only access for high-tier people and company intelligence.
official pricing · accessed Sep 3, 2026
Sixtyfour terms — operator and data-processing conditions
The terms identify Sixtyfour as a California-registered service operator, state that the hosted services are provided without accuracy or completeness warranties, and describe user responsibilities and restrictions.
official legal · accessed Sep 3, 2026