# 80x

> 80x is an agentic-engineering studio that builds AI systems for venture-capital funds.

Daniel Hull is the founder of 80x, an agentic-engineering studio for venture-capital funds. The studio works with funds running Attio or Affinity: it builds qualification and enrichment agents, repairs and migrates CRM data, and maintains the automations behind pipelines and dashboards. It publishes its methods as open documentation and open-source tools.

Contact / hire 80x: send a brief at https://80x.ai/contact or email daniel@80x.ai (replies within one business day). Book a call: https://80x.ai/book. Newsletter (The 80x Field Notes): https://80x.ai/newsletter.

Every page listed below is a markdown mirror (append .md to any page URL, or request the page with an Accept: text/markdown header). The canonical HTML pages live at the same paths without .md. Full corpus in one file: https://80x.ai/llms-full.txt

## Studio

- [Agentic engineering for venture capital](https://80x.ai/index.md): 80x is an agentic-engineering studio that builds AI systems for venture-capital funds. Services, case studies, open documentation, and tools for funds running Attio or Affinity.
- [About](https://80x.ai/about.md): Daniel Hull is the founder of 80x, an agentic-engineering studio for venture-capital funds. The studio publishes its methods as open documentation and tools.
- [Methodology](https://80x.ai/methodology.md): How 80x chooses and ranks directory listings, and how this site makes money: editorial entries, no paid placement, no affiliate links, disclosures promised in advance.
- [The 80x Field Notes](https://80x.ai/newsletter.md): The 80x Field Notes is one email when new references, guides, or open-source tools ship from 80x. No spam, unsubscribe anytime.
- [Book a call](https://80x.ai/book.md): Book an intro call with 80x to talk through agentic engineering at your fund — automation, migration, or a retainer. Or send a project brief by email.
- [Contact 80x](https://80x.ai/contact.md): Contact 80x to automate, migrate, or repair your venture fund's CRM. Send a short brief and Daniel replies from daniel@80x.ai within one business day.

## Services

- [Services](https://80x.ai/services.md): 80x builds and repairs AI agents for venture-capital funds: agentic CRM automation, CRM migration and cleanup, and automation retainers.
- [Agentic CRM automation](https://80x.ai/services/agentic-crm-automation.md): 80x builds agents that qualify, enrich, and file deals inside Attio or Affinity — suggestion fields, verbatim citations, and kill switches included.
- [CRM migration and cleanup](https://80x.ai/services/crm-migration-and-cleanup.md): 80x moves and repairs Attio and Affinity data without losing history: dry-run migrations, deduplication at scale, and backfills with rollback trails.
- [Automation retainers](https://80x.ai/services/automation-retainers.md): 80x maintains the automations behind your fund's pipeline: scheduled jobs, hygiene enforcement, self-updating dashboards, and monitoring for silent failures.

## Work

Case studies from real engagements. Clients are anonymized; the numbers are real.

- [Work](https://80x.ai/work.md): Case studies from 80x engagements: qualification agents, CRM cleanups, LP pipelines, and dashboard repairs, with real numbers and anonymized clients.
- [Teaching a CRM to qualify its own deals](https://80x.ai/work/teaching-a-crm-to-qualify-its-own-deals.md): How 80x built a MEDIC qualification agent that reads a 2,086-deal Attio pipeline daily and writes only findings it can cite verbatim.
- [Cleaning up after a botched CRM migration](https://80x.ai/work/crm-notes-cleanup.md): How 80x reduced 4,892 duplicated CRM notes to 2,358 with zero erroneous deletions after a botched Affinity-to-Attio migration at a fund-of-funds.
- [An LP fundraising pipeline for a first-time fund](https://80x.ai/work/lp-fundraising-pipeline.md): How 80x modeled LP fundraising as a first-class Attio object for a first-time fund: 50-plus LP records, 17 live pipeline entries, 8 saved views.
- [Repairing the silent automations behind a deal-flow dashboard](https://80x.ai/work/dashboard-automation-repair.md): How 80x found two silently dead CRM automations behind a deal-flow dashboard, repaired them, and backfilled 76 date fields from status history.
- [Building a WhatsApp-to-CRM product without an unofficial API](https://80x.ai/work/whatsapp-to-crm-product.md): How 80x built its WhatsApp-to-CRM Mac app: on-screen capture instead of an unofficial API, a server-enforced privacy gate, and a contract-first backend.

## Writing

- [Writing](https://80x.ai/writing.md): Essays and field notes from 80x on agentic engineering in venture capital: what worked, what broke, and what it cost.
- [Teaching a CRM to qualify its own deals](https://80x.ai/writing/teaching-a-crm-to-qualify-its-own-deals.md): A case study on Scout, a MEDIC qualification agent. Most of the work was not the AI; it was making it safe to run unattended against a couple thousand live deals.

## Tools

- [Tools](https://80x.ai/tools.md): Free and commercial tools from 80x: the Sentry skill auditor, Backchannel, valentine, attio-cli, the Attio Workflows Handbook, and awesome-attio.
- [Sentry — audit any Claude skill](https://80x.ai/tools/sentry.md): Sentry reviews Claude Agent Skills for security and effectiveness: a deterministic scanner plus an optional AI deep review, free at 80x.ai/sentry.

## The Fund Stack

80x's directory of the software and data tools venture funds run on. Listings are editorial — no paid placement, no affiliate links (methodology: https://80x.ai/methodology.md).

- [The Fund Stack — VC tooling directory](https://80x.ai/stack.md): The Fund Stack is 80x's directory of the software and data tools venture funds run on: CRM, sourcing, market data, portfolio monitoring, cap table, fund admin, and AI.
- [Dealflow & CRM tools for venture funds](https://80x.ai/stack/category/dealflow-crm.md): Systems of record for deals and relationships — where pipeline, notes, and history live. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Sourcing & signals tools for venture funds](https://80x.ai/stack/category/sourcing-signals.md): Platforms that surface companies before they raise — founder tracking, growth and hiring signals. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Market data & research tools for venture funds](https://80x.ai/stack/category/market-data.md): Private-market databases and research platforms behind comps, market maps, and diligence. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Data enrichment tools for venture funds](https://80x.ai/stack/category/enrichment.md): APIs and workflow tools that fill in the blanks — people, companies, and contact data at scale. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Portfolio monitoring tools for venture funds](https://80x.ai/stack/category/portfolio-monitoring.md): Collecting metrics from portfolio companies and turning them into fund-level reporting. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Cap table & equity tools for venture funds](https://80x.ai/stack/category/cap-table.md): Ownership infrastructure — cap tables, options, valuations, and equity workflows. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Fund admin & LP ops tools for venture funds](https://80x.ai/stack/category/fund-admin-lp.md): Fund formation, subscriptions, SPVs, LP portals, and the paperwork between raises. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [AI & automation tools for venture funds](https://80x.ai/stack/category/ai-automation.md): Models, research assistants, and workflow glue that automate fund work end to end. Curated in The Fund Stack, 80x's directory of VC and fund tooling.
- [Attio for venture funds](https://80x.ai/stack/attio.md): Attio is a CRM built on a flexible object model, so a fund can model deals, companies, people, and LPs the way it actually works rather than around a sales pipeline.
- [Affinity for venture funds](https://80x.ai/stack/affinity.md): Affinity is a CRM that builds a relationship graph from the firm's email and calendar activity, so warm paths to a founder or LP are visible without manual logging.
- [Airtable for venture funds](https://80x.ai/stack/airtable.md): Airtable is a database with a spreadsheet interface: tables, views, forms, and automations that non-engineers can build.
- [Notion for venture funds](https://80x.ai/stack/notion.md): Docs and databases in one workspace — memos, wikis, and portals. Notion is a connected workspace that mixes documents with structured databases.
- [folk for venture funds](https://80x.ai/stack/folk.md): A lightweight, contact-first CRM for smaller teams. folk is a contact-centric CRM that syncs email and enriches contacts with a minimum of setup.
- [4Degrees for venture funds](https://80x.ai/stack/4degrees.md): 4Degrees is a CRM built specifically for venture and private-equity workflows: it mines the firm's communications to score relationships and automate data entry.
- [Harmonic for venture funds](https://80x.ai/stack/harmonic.md): A live database of startups and founders, built for sourcing.
- [Specter for venture funds](https://80x.ai/stack/specter.md): Specter tracks quantitative signals on private companies — team growth, web traffic, app rankings, founder moves — and packages them for sourcing and monitoring.
- [SourceScrub for venture funds](https://80x.ai/stack/sourcescrub.md): Deal-sourcing database centered on founder-owned companies.
- [Grata for venture funds](https://80x.ai/stack/grata.md): Grata is a private-company search engine: natural-language queries over descriptions of what companies actually do, with firmographics attached.
- [Tracxn for venture funds](https://80x.ai/stack/tracxn.md): Tracxn is a private-market data platform that classifies startups into detailed sector and business-model taxonomies, with analyst-curated feeds per space.
- [PitchBook for venture funds](https://80x.ai/stack/pitchbook.md): PitchBook, a Morningstar company, is a database of private-market companies, deals, funds, investors, and LPs, with valuations and comps attached.
- [Dealroom for venture funds](https://80x.ai/stack/dealroom.md): Dealroom is a global startup database with roots in Europe, covering companies, rounds, investors, and ecosystem statistics.
- [Crunchbase for venture funds](https://80x.ai/stack/crunchbase.md): Crunchbase is a company database tracking funding rounds, acquisitions, and people, with breadth across geographies and stages.
- [CB Insights for venture funds](https://80x.ai/stack/cb-insights.md): CB Insights combines private-company data with analyst research: market maps, industry reports, and scoring on emerging spaces.
- [AlphaSense for venture funds](https://80x.ai/stack/alphasense.md): AlphaSense is a market-intelligence search engine over filings, earnings transcripts, broker research, news, and expert-call libraries, with AI summarization on top.
- [Clay for venture funds](https://80x.ai/stack/clay.md): Clay is a workflow tool that enriches lists of companies or people by waterfalling across dozens of data providers and AI agents, one column at a time.
- [Apollo for venture funds](https://80x.ai/stack/apollo.md): B2B contact database with outreach built in. Apollo is a B2B database of companies and verified work contacts, paired with sequencing and engagement tools.
- [People Data Labs for venture funds](https://80x.ai/stack/people-data-labs.md): People Data Labs sells person and company datasets through APIs meant to be built on — resolve an email to a profile, a company to its headcount history, at scale.
- [Standard Metrics for venture funds](https://80x.ai/stack/standard-metrics.md): Standard Metrics collects financial and operating metrics from portfolio companies on a schedule and normalizes them for the fund.
- [Visible for venture funds](https://80x.ai/stack/visible.md): Founder updates and portfolio tracking in one loop.
- [Chronograph for venture funds](https://80x.ai/stack/chronograph.md): Chronograph provides portfolio monitoring and analytics for institutional private-capital investors, on both the GP and LP side.
- [Rundit for venture funds](https://80x.ai/stack/rundit.md): Portfolio monitoring and LP reporting for VC funds. Rundit combines portfolio-company metric collection with fund-level dashboards and LP report generation.
- [Vestberry for venture funds](https://80x.ai/stack/vestberry.md): Vestberry is a portfolio-intelligence platform for VC funds: metric collection, fund KPIs, and analytics views built for partners and finance rather than spreadsheets.
- [Carta for venture funds](https://80x.ai/stack/carta.md): Carta manages cap tables and equity for companies and runs fund administration for investors — SPVs, fund accounting, valuations, and LP portals under one roof.
- [Pulley for venture funds](https://80x.ai/stack/pulley.md): Cap-table and equity management for startups. Pulley manages cap tables, option pools, and equity offers for startups.
- [Ledgy for venture funds](https://80x.ai/stack/ledgy.md): Equity management built for European companies. Ledgy handles cap tables, employee participation plans, and equity compliance with European legal frameworks in mind.
- [Juniper Square for venture funds](https://80x.ai/stack/juniper-square.md): Fund administration and LP portals for private markets. Juniper Square provides fund administration, investor onboarding, and LP portals for private-market managers.
- [Passthrough for venture funds](https://80x.ai/stack/passthrough.md): LP subscription documents, turned into a guided workflow. Passthrough turns fund subscription documents into a guided online workflow, with KYC and AML checks built in.
- [Anduin for venture funds](https://80x.ai/stack/anduin.md): Anduin digitizes fund subscription and closing processes: structured data capture, e-signature, and status tracking for GPs, LPs, and fund counsel.
- [AngelList for venture funds](https://80x.ai/stack/angellist.md): AngelList runs the legal and administrative infrastructure for venture funds, rolling funds, and SPVs — formation, banking rails, closings, and distributions as a service.
- [Sydecar for venture funds](https://80x.ai/stack/sydecar.md): Sydecar provides SPVs and funds as standardized products: formation, compliance, banking, and reporting handled under one automated process.
- [Allocations for venture funds](https://80x.ai/stack/allocations.md): Fast SPV and fund administration. Allocations is a fund-administration platform focused on spinning up SPVs and small funds quickly.
- [Claude for venture funds](https://80x.ai/stack/claude.md): Claude is Anthropic's family of AI models, available as an assistant, an API, and the Claude Code agent environment.
- [Perplexity for venture funds](https://80x.ai/stack/perplexity.md): An answer engine with citations, for fast company research. Perplexity is an AI answer engine that returns sourced, cited answers instead of link lists.
- [Hebbia for venture funds](https://80x.ai/stack/hebbia.md): Hebbia is an AI platform that answers structured questions across large document sets — data rooms, filings, research — with the answers tied back to sources.
- [Zapier for venture funds](https://80x.ai/stack/zapier.md): No-code automation glue between the tools a fund already uses. Zapier connects thousands of apps with trigger-action automations that non-engineers can build.
- [Make for venture funds](https://80x.ai/stack/make.md): Visual automation scenarios, formerly Integromat. Make (formerly Integromat) is a visual automation platform where multi-step scenarios are drawn as flowcharts.
- [n8n for venture funds](https://80x.ai/stack/n8n.md): n8n is a workflow-automation platform that is source-available and self-hostable, with first-class support for custom code and AI nodes.

## Docs

- [80x Docs](https://80x.ai/docs/): open documentation on agentic engineering for venture-capital funds — playbooks (qualification, pipeline hygiene, CRM migration, LP fundraising ops, sourcing and signals), project write-ups, and field notes. Has its own index at https://80x.ai/docs/llms.txt

## Product

- [Backchannel — WhatsApp and LinkedIn to your CRM](https://80x.ai/app.md): Backchannel is a native Mac client for WhatsApp and LinkedIn that syncs the conversations you choose to Attio or Affinity. Private by default, from $9/mo.
- [Download Backchannel](https://80x.ai/download.md): Download Backchannel as a signed, notarized DMG and install it in three steps.

## Optional

- [Atom feed](https://80x.ai/feed.xml): full-content feed of new case studies and essays
- [Sitemap](https://80x.ai/sitemap.xml): all studio URLs with last-modified dates
- [GitHub](https://github.com/80x-djh): the studio's open-source repositories