Blekline MCP Server
OfficialServer Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| BLEKLINE_API_URL | No | Blekline control plane URL | https://app.blekline.com |
| BLEKLINE_CLIENT_SURFACE | No | Client surface label (cursor, claude-desktop, vscode, etc.) | |
| BLEKLINE_WORKSPACE_TOKEN | Yes | Workspace MCP token from app.blekline.com |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| blekline_mask_promptA | Mask PII and secrets in prompt text via the Blekline control plane before sending content to an LLM. |
| blekline_simulate_policyA | Read-only simulation of Blekline redaction policy on a prompt without applying masking or persisting content. |
| blekline_log_governance_eventB | Write a metadata-only governance audit event to the Blekline workspace. Does not store raw prompt content. |
| blekline_evaluate_tool_callA | Read-only evaluation of MCP tool name and arguments against Blekline workspace tool policy (allow, mask, or block). |
| blekline_classify_riskA | [Deprecated — use blekline_simulate_policy] Read-only simulation of Blekline redaction policy on a prompt without applying masking or persisting content. |
| blekline_emit_eventA | [Deprecated — use blekline_log_governance_event] Write a metadata-only governance audit event to the Blekline workspace. Does not store raw prompt content. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 6 tools
The set includes two pairs of deprecated duplicates (classify_risk mirrors simulate_policy, emit_event mirrors log_governance_event), which creates some overlap. However, the deprecation notes explicitly point to the replacements, so an agent can disambiguate with careful attention.
All tools share the consistent 'blekline_' prefix and follow a clear verb_noun snake_case pattern (mask_prompt, simulate_policy, log_governance_event, evaluate_tool_call, classify_risk, emit_event). The naming is uniform and predictable.
Six tools total is within the typical well-scoped range, though two are deprecated, leaving four active tools. This is slightly thin for a governance surface but still reasonable for the narrow purpose of masking and policy evaluation.
The active tools cover core needs: masking, policy simulation, governance event logging, and tool-call evaluation. Missing capabilities like policy management or retrieving audit logs are minor gaps, but the primary workflow is well covered.