IN THE FIELD GUIDE
Lithoblocks
lithoblocks.com
LithoBlocks is a platform that enables users to create and manage visual Slack message templates that are versioned and team-owned, eliminating the need for hand-coding Block Kit JSON in codebases. It provides a simple REST API to send messages using these templates, supporting interactive forms, message updates, and version control for templates.
THE PRODUCT, BEYOND THE PITCH
Automatically researched · Not editorially reviewed · Sources checked Oct 8, 2026
A good fit for
Not confirmed yet.
Know the limitations
- Message limits apply per plan with overage charges; only new Slack messages count toward monthly credits, while message updates and modal interactions are free.
What you can do
- Moving Slack messaging out of codebases to allow non-engineers like ops, support, and marketing to edit message templates visually.
- Sending Slack messages from various automation tools or scripts such as Make, Zapier, GitHub Actions, or bash scripts using a single REST API call.
Features
- Visual Block Kit builder that allows dragging blocks onto a canvas and typing real content with instant rendering and valid Block Kit JSON export.
- Integrated modals to build interactive forms with inputs, selects, and date pickers, including wiring buttons to open modals and update messages on submit.
- Message updates that allow updating the original message when a button is clicked, with an archive of user interactions and unattended items.
- Directives for summaries that format arrays of data into arrays of blocks, enabling digests and batched alerts without backend loops.
- Versioned templates where every change is versioned, editable in the builder, automatically picked up by workflows, and rollbacks are possible.
Integrations
Not confirmed yet.
Platforms & data export
Not confirmed yet.
THE COST FOR YOUR TEAM
Go beyond the starting price.
Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.
Cheapest fit for 1 person, all 1 tools
$25.00/month
$300.00 a year on these plans.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
BuilderCheapest fit Flat subscription | $25.00 | $300.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
Team Flat subscription | $50.00 | $600.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
Business Flat subscription | $250.00 | $3,000.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
Enterprise Flat subscription | By quote | — | Priced by quote — ask the provider for a figure. Contact the provider for a quote. |
A practical workflow
- Create a template with dynamic text and handbook links, send data from an application to a test channel using the API, and connect buttons, webhooks, message updates, and modal forms for approvals.
- Schedule or batch notifications to manage delayed sends and digests within the platform.
- Set up your workspace by creating or joining an organization, connecting Slack, and learning how templates, compile, and send fit together.
Based on the sources below. Editorial review does not imply hands-on product testing.
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