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Hexum

● Identity checked

Coding agent guardrails · Official-source review 2026-10-09 UTC

Hexum adds context folding, architecture rules, pull-request review and build-loop checks to an existing coding agent. Its architecture checker reads repository rules without calling a model.

Updated 2026-10-09View sources
Official website
Category
Coding agent guardrails
Free access
Personal starter window of two million tokens sent to Hexum per month.
API access
Twelve MCP tools across five products; one key connects an existing coding agent.

Is Hexum right for you?

A good fit for

Fits developers who can inspect context reductions and maintain architecture rules and tests for their agent.

Before you choose

Personal starter includes two million incoming tokens monthly. Usage costs €0.30 per million tokens sent to Hexum, billed at month end; Teams costs €0.35 per million on a shared invoice for up to twenty-five people. The meter counts incoming context, not tokens saved, with no monthly cap or per-seat fee. External editor and model costs remain separate. The browser playground accepts up to eight files and 96 KiB and is distinct from MCP. Published benchmark savings and vendor no-retention claims were not independently verified. No repository was connected or guardrail tested.

Workflow and handoff

Use an authorized test repository, confirm the incoming-token meter, inspect folded context and architecture rules, and retain code review and tests before accepting edits.

Pricing and practical limits

Personal starter includes two million incoming tokens monthly. Usage costs €0.30 per million tokens sent to Hexum, billed at month end; Teams costs €0.35 per million on a shared invoice for up to twenty-five people. The meter counts incoming context, not tokens saved, with no monthly cap or per-seat fee. External editor and model costs remain separate. The browser playground accepts up to eight files and 96 KiB and is distinct from MCP. Published benchmark savings and vendor no-retention claims were not independently verified. No repository was connected or guardrail tested.

Review method

Relevant official-source evidence reviewed individually on 2026-10-09 UTC (October 10 in India). Selected product artwork inspected visually. No hands-on vendor application test was performed. Performance, security and plan enforcement were not independently tested.

What it can do

Features & capabilities

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

CapabilityValueEvidenceChecked
Documented workflowHexum adds context folding, architecture rules, pull-request review and build-loop checks to an existing coding agent. Its architecture checker reads repository rules without calling a model.Facts sourced2026-10-09

Understand the total cost

Hexum pricing & plans

Personal starter

Free

See stated billing terms

Allowance and restrictions
Two million incoming tokens monthly.

Teams

€0.35 / million incoming tokens

See stated billing terms

Allowance and restrictions
Shared incoming-token invoice for up to twenty-five people.
Explore pricing & history

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The practical questions

Frequently asked questions

Was this product hands-on tested?

No. The listing uses dated official-source evidence and visual artwork review. Unconfirmed pricing, allowances and integrations are stated explicitly.

What is Hexum used for?

Hexum adds context folding, architecture rules, pull-request review and build-loop checks to an existing coding agent. Its architecture checker reads repository rules without calling a model.

Does Hexum have a free plan?

Personal starter window of two million tokens sent to Hexum per month.. This record lists ongoing free access; check the plan limits before starting.

How much does Hexum cost?

€0.30 / million incoming tokens. See the billing terms below. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Hexum through an API?

Twelve MCP tools across five products; one key connects an existing coding agent.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Personal starter includes two million incoming tokens monthly. Usage costs €0.30 per million tokens sent to Hexum, billed at month end; Teams costs €0.35 per million on a shared invoice for up to twenty-five people. The meter counts incoming context, not tokens saved, with no monthly cap or per-seat fee. External editor and model costs remain separate. The browser playground accepts up to eight files and 96 KiB and is distinct from MCP. Published benchmark savings and vendor no-retention claims were not independently verified. No repository was connected or guardrail tested.

Price history

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

How this profile is supported

Official product information

Product identity and relevant official-source evidence reviewed individually.

Read original source ↗
Costs and constraints

Personal starter includes two million incoming tokens monthly. Usage costs €0.30 per million tokens sent to Hexum, billed at month end; Teams costs €0.35 per million on a shared invoice for up to twenty-five people. The meter counts incoming context, not tokens saved, with no monthly cap or per-seat fee. External editor and model costs remain separate. The browser playground accepts up to eight files and 96 KiB and is distinct from MCP. Published benchmark savings and vendor no-retention claims were not independently verified. No repository was connected or guardrail tested.

Read original source ↗

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