Bolt by Sparcle

Desktop AI assistant that masks secrets before cloud models see them

Intermediate
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Screenshot of Bolt by Sparcle, Desktop AI assistant that masks secrets before cloud models see them

What is Bolt by Sparcle?

Bolt by Sparcle is a life assistance tool. Bolt is a hotkey-driven desktop AI assistant that keeps data on the device and masks secrets before cloud models see them. Free for individuals on Mac, Windows and Linux, with self-hosted tiers for teams.

Bolt by Sparcle is a desktop AI assistant opened with a single hotkey. Its central idea is that data stays on the user's device, and sensitive values are masked before any prompt reaches a cloud model. That makes it relevant to people who want frontier models for daily work but cannot paste credentials, customer records or internal documents into a chat window. In practice, Bolt works as a launcher. A user types or pastes a value, and the app recognizes its shape on the device, flags what looks sensitive and proposes a next move such as decoding, converting, validating or pulling related details from connected systems. Built-in formats include JWTs, base64 and hex, timestamps, UUIDs, IBANs, file types, and medical and geo codes, and custom formats can be taught through a manifest. Routine steps like decoding a token or running a lookup execute deterministically, so no model tokens are spent. Beyond the launcher, Bolt drafts email replies, prepares meeting invites, stages task updates in tools such as Jira or Linear, and includes a sandboxed desktop agent that can browse local files, run terminal commands and open applications. A phone-to-desktop bridge and multi-machine routing extend this to remote use. Actions that leave the machine wait for the user's confirmation. For organizations, Bolt is self-hosted rather than offered as a cloud service: Docker Compose for staging, Kubernetes for production, on AWS, Azure, GCP, on-prem or air-gapped. Models are brought by the customer through their own keys (OpenAI, Anthropic, Bedrock, Vertex, Ollama, NVIDIA NIM or a fine-tuned model), so there is no per-token markup. Integrations are built on the Model Context Protocol, with identity handled through SAML, OIDC or JWT, and audit logging at each layer. Within the field, Bolt sits between consumer desktop assistants and enterprise AI gateways. Individuals get a free download, while teams buy tiered, annual, self-hosted contracts with seat minimums. Deeper architecture details are shared only under NDA, which limits independent evaluation.

How do you use Bolt by Sparcle?

  1. 1Download the desktop app
    Install Bolt on Mac, Windows or Linux. The individual version needs no account and works out of the box on a free model.
    Bolt by Sparcle — Download the desktop app
  2. 2Open Bolt with the hotkey
    Use the single hotkey to bring up the launcher, then type or paste a value such as a token, an IBAN or a note to see what Bolt recognizes.
  3. 3Connect your own model
    Point Bolt at your own API key or provider, such as OpenAI, Anthropic or a local Ollama model, if you want more than the free default.
  4. 4Link work tools
    Add connectors for email, calendar and task tools, then try a command like drafting a reply or scheduling a meeting and confirm before it runs.
  5. 5Compare team tiers
    For an organization, review the Authorize, Backbone and Certify tiers and their seat minimums before planning a self-hosted deployment.
    Bolt by Sparcle — Compare team tiers
  6. 6Review the technical slides
    Read the architecture slides to understand the security pipeline and perimeter model before scheduling an architecture review.
    Bolt by Sparcle — Review the technical slides

Pros and cons

Pros

  • Masks secrets and PII on the device before any prompt reaches a cloud modelAI
  • Free for individuals with no account and no time limitAI
  • Bring your own LLM keys with no per-token markup, including local models via OllamaAI
  • Fully self-hosted options, including air-gapped, so the vendor never holds customer dataAI
  • Open MCP integrations with 105 in-house connectors plus bridges to hundreds moreAI

Cons

  • Team tiers carry seat minimums of 10, 25 or 50 and require annual contractsAI
  • Detailed architecture and security documentation is available only under NDAAI
  • Self-hosting through Docker Compose or Kubernetes demands real infrastructure effort from teamsAI
  • Some connectors such as Slack, Drive and M365 need admin setup before they appearAI
  • Public pricing figures for paid tiers are not shown on the homepageAI

How much does Bolt by Sparcle cost?

Free trial

No trial is needed for individuals: the desktop app is free with no account and no time limit, and it works on a free model out of the box.

Learn more

Pricing

Free to download for individuals, with no account and no time limit. Team tiers (Authorize, Backbone, Certify) need annual contracts with minimums of 10, 25 and 50 seats. A Founding Customer Program offers 25% off for 24 months to the first 50 customers.

Learn more

Support

Contact requests are answered within one business day. Founding customers get direct founder access and weekly office hours. Architecture reviews are scheduled through the contact form.

Integrations

Built on the Model Context Protocol with 105 in-house connectors and roughly 350 more via Airbyte. Includes Jira, Confluence, Salesforce, GitHub, Notion and Zendesk, with Slack, Drive and M365 after admin setup. Supports SAML, OIDC, JWT, SSO and SCIM.

Features

On-device secret masking and PII detection, a one-hotkey launcher that recognizes sensitive values, email, calendar and task automation with confirmation, a sandboxed desktop agent, phone-to-desktop bridge, multi-machine routing, audit logging and a YAML manifest for governed extensions.

Learn more

Frequently asked questions about Bolt by Sparcle

  • How much does Bolt by Sparcle cost?
    Free to download for individuals, with no account and no time limit. Team tiers (Authorize, Backbone, Certify) need annual contracts with minimums of 10, 25 and 50 seats. A Founding Customer Program offers 25% off for 24 months to the first 50 customers.
  • Does Bolt by Sparcle offer a free trial?
    No trial is needed for individuals: the desktop app is free with no account and no time limit, and it works on a free model out of the box.
  • How do you use Bolt by Sparcle?
    The walkthrough on this page covers 6 steps: 1. Download the desktop app 2. Open Bolt with the hotkey 3. Connect your own model 4. Link work tools 5. Compare team tiers 6. Review the technical slides.
  • What platforms does Bolt by Sparcle support?
    Bolt by Sparcle is available on MacOS, Windows and Linux.
  • What does Bolt by Sparcle integrate with?
    Built on the Model Context Protocol with 105 in-house connectors and roughly 350 more via Airbyte. Includes Jira, Confluence, Salesforce, GitHub, Notion and Zendesk, with Slack, Drive and M365 after admin setup. Supports SAML, OIDC, JWT, SSO and SCIM.
  • What are the limitations of Bolt by Sparcle?
    Team tiers carry seat minimums of 10, 25 or 50 and require annual contracts. Detailed architecture and security documentation is available only under NDA. Self-hosting through Docker Compose or Kubernetes demands real infrastructure effort from teams.

Status

StatusActive
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Added10/18/2026

Platforms

MacOSWindowsLinux

Pricing

FreePaid

Categories

Life AssistanceProductivity