Stop hand-coding Slack messages. Visual templates, versioned and team-owned. Send them with a single REST API call. 14-day free trial on any plan.
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Last probed Nov 3, 2026 · mcp.lithoblocks.com
65tools discovered
For AI agents — MCPBundles Directory API
For MCP client apps (human connect):
MCP connect URL: https://mcp.lithoblocks.com/mcp
Skill page: https://www.mcpbundles.com/skills/lithoblocks-mcp-177e352239
Explore capabilities (65)
read 15
write 10
Showing 25 of 65
Showing 25 of 65 tools from the public preview. Connect the server to inspect the full live tool list.
Get8
List5
Create Template2
Search2
Send Template Message2
Update2
Other capabilities4
Describe a template's input
read
get_template_input_schema
What `data` a compile or send of this template takes: every path it reads, with a label, a type from the version's sample data, whether it is a list a loop needs, and nesting for dotted paths, plus the same tree as JSON Schema. Use it before compile_template or send_template_message to build `data` correctly; request_format lists the same paths without types.
Describe a template's input — What `data` a compile or send of this template takes: every path it reads, with a label, a type from the version's sample data, whether it is a list a loop needs, and nesting for dotted paths, plus the same tree as JSON Schema. Use it before compile_template or send_template_message to build `data` correctly; request_format lists the same paths without types.
List templates — List the organization's message templates: id, name, description, visibility, current version id and timestamps. Expansions are opt-in and expensive; fetch one template with get_template when you need its message.
Get a template — Fetch one template by id, with its current version's message and sample data when requested.
Search templates — Full-text search over templates by name and content. Returns matches ranked by match_score.
List template versions — List the versions of a template, newest first, with version_number, status and whether each is current.
Get a template version — Fetch one version of a template, including its full block message and sample data.
List entities — List an organization's entities (the reusable data shapes templates bind to). Get organization_id from get_my_profile.
Get an entity — Fetch one entity with its fields.
Search entities — Search entities by name, description and field names. Returns matches with the fields that matched.
Get credit balance — The organization's remaining message credits. Sends spend credits; check before a bulk send.
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Stop hand-coding Slack messages. Visual templates, versioned and team-owned. Send them with a single REST API call. 14-day free trial on any plan.
How do I connect LithoBlocks to my AI agent?
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
How many tools does LithoBlocks provide?
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— Credit usage history: which template was sent, credits used, remaining balance and delivery status, newest first.
Get organization — Organization details: name, status, member count and credit balance.
List organization members — The organization's members and their roles.
Get my profile — The profile behind the credentials in use, including organization_id, which the organization, entity and credit tools need. Call this first.
Get the block schema — Read before designing or editing templates: the live block types, directives, placeholders, limits and interactivity contract, plus an authoring_guide with composition advice, validation/preview workflow and complete recipes with sample_data. Available to every MCP client; no plugin required.
Validate template blocks — Check compilation and interactivity against sample_data without saving or spending credits. Returns validation errors, request format, warnings and interactivity diagnostics, with no rendered Slack output. Iterate here until valid, then create_template. Use compile_template to obtain rendered output; it spends a credit.
Create a template — Create a template and its first version in one step. The blocks must compile against sample_data or nothing is created. The version is a draft unless activate is true, which makes it what sends use immediately and needs the templates:activate scope.
Update template metadata — Rename a template or change its icon, display name or type. Blocks live in versions; use create_template_version for those.
Create a template version — Add a new version of a template's blocks. It is a draft until activate_template_version makes it current; sends keep using the current version until then.
Activate a template version — Make a version the one sends use. Irreversible in effect: every send after this, from any integration, posts the new version.
Compile a template — Render a template's stored current version with data to Slack Block Kit without posting it. Cannot preview a draft. Spends one credit. Returns a partial text summary, counts and warnings; set include_blocks to inspect charts, tables, cards and full structure. This is not a visual preview or a test of button effects.
Send a template message to Slack — Post a template, rendered with data, to one Slack destination. Exactly one of channel_id, recipient_email or recipient_slack_id. Posts a real message and spends one credit; compile_template first if unsure.
Send a template message to many Slack destinations — Post one rendered template to 1–100 destinations. Each destination: Exactly one of channel_id, recipient_email or recipient_slack_id. Posts real messages and spends one credit per success.
Update an entity — Rename an entity or change its description. Fields are updated with update_entity_field.
Delete an entity — Delete an entity and all of its fields. Irreversible.
Showing the first 25 tools — full list and schemas: Directory API.
MCPBundles probed 65 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
What authentication does LithoBlocks require?
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