Directory / Agent Identity & Security

Fulcrum

The agentic debugger for AI systems

Fulcrum is a Echo is a writing model from Fulcrum that imitates a named author’s voice and can handle tasks from literary fiction to casual chat. The site presents it as an API/product for generating writing in a specific style. AI agent company selling to Writers and teams that want an AI model for style imitation and voice-matched writing.. Latest disclosed round: Last known: Pre-Seed (2025) ($500,000, 2025-09-09). About 2 employees, +100.0% over 6 months. 1,923 followers on X.

Headcount
2
—▲ 100.0%3m · 6m
src: Clay (LinkedIn)
X followers
1,923
——7d · 30d
Traffic / month
—
Latest round
$500K
Last known: Pre-Seed (2025)Sep 9, 2025
// profile

Product

Agent type
Echo is a writing model from Fulcrum that imitates a named author’s voice and can handle tasks from literary fiction to casual chat. The site presents it as an API/product for generating writing in a specific style.
Primary buyer
Writers and teams that want an AI model for style imitation and voice-matched writing.
Integrations
—
MCP support
—
HQ
—
Founded
—
LinkedIn
Profile ↗
// capital

Funding

Round
Last known: Pre-Seed (2025)
Date
Sep 9, 2025
Leads
{"Y Combinator"}
Investors
Y Combinator
src: Clay enrichment 2026-11-04
// team

Hiring

Employees
2
src: Clay (LinkedIn)
Growth 3m / 6m
— / +100.0%
src: Clay (LinkedIn)
Open roles (sample)
—
X mentions this week
—
X handle
@fulcrum_inc
src: homepage-verified · https://www.ycombinator.com/companies/fulcrum | https://fulcrumresearch.ai
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Top launch posts

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No posts tracked yet

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Recent news

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No news tracked yet

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// provenance

Sources

Last verified: Nov 4, 2026
Headcount
Clay (LinkedIn)
Open jobs
—
Traffic
—
Clay enrichment
Clay enrichment 2026-11-04
seed_type
YC directory
funding_status
Last known (aggregator source)
funding_source_type
aggregator
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// faq

About Fulcrum

What does Fulcrum do?+

The agentic debugger for AI systems

How much has Fulcrum raised most recently?+

Last known: Pre-Seed (2025) of $500K on Sep 9, 2025, led by {"Y Combinator"}.

How many employees does Fulcrum have?+

About 2 (3-month growth —).

How is Fulcrum priced?+

Usage-based.

// cite

Cite this data

Fulcrum profile. Agent Market Map, The GTM Engineering Newsletter. Last verified Nov 4, 2026. https://agentmarketmaps.com/company/fulcrum