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Perseus

● Identity checked

Developer Tools · Vendor site 2026-10-04

Perseus is a retrieval engine that grounds coding agents in real repositories using multi-hop codebase search and file-and-line citations. It warms quickly and exposes pricing tiers for demo, developer, and scale seats aimed at agent-assisted engineering workflows.

Updated 2026-10-04View sources
Official website
Category
Developer Tools
Free access
Not confirmed
API access
Not confirmed

Is Perseus right for you?

A good fit for

Developers and platform teams running coding agents that need cited repository context before edits land.

Before you choose

Developer plan lists 2,000 queries, three repositories, and 2M indexed LOC per seat; larger needs move to Scale or sales contact.

Codebase search for agents

Perseus markets retrieval that grounds coding agents in real code with cited answers, contrasted on the homepage against agents that guess when shared utilities already exist.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

CapabilityValueEvidenceChecked
Cited searchProduct copy promises multi-hop search with exact file-and-line citations for agent context.Facts sourced2026-10-04
Developer pricingPricing page lists Developer at $20 per seat per month with monthly query and repository limits.Facts sourced2026-10-04
Warm speedHomepage meta states the engine warms in about a second for interactive agent use.Facts sourced2026-10-04

Understand the total cost

Perseus pricing & plans

Developer

$20.00 /mo

$20 per seat per month on the public pricing page.

Queries
2,000 queries per month per seat
Repositories
3 indexed repositories and 2M indexed LOC
Explore pricing & history

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The practical questions

Frequently asked questions

What is Perseus used for?

Perseus is a retrieval engine that grounds coding agents in real repositories using multi-hop codebase search and file-and-line citations. It warms quickly and exposes pricing tiers for demo, developer, and scale seats aimed at agent-assisted engineering workflows.

Does Perseus have a free plan?

Not confirmed. This record does not confirm an ongoing free plan.

How much does Perseus cost?

The listed monthly price is $20.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Perseus through an API?

Not confirmed. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Developer plan lists 2,000 queries, three repositories, and 2M indexed LOC per seat; larger needs move to Scale or sales contact.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.