dgraph-mcp-server

Provides an MCP (Model Context Protocol) server that lets MCP-capable LLM applications interact with a Dgraph database via tools for running DQL queries, executing RDF mutations, altering the schema, and retrieving the current schema.

Evaluated Apr 04, 2026 (16d ago)

Repo ↗ Infrastructure mcp dgraph graph-database database go llm-integration tools schema-management

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

The README does not describe authentication/authorization, TLS/network exposure, or secret handling. Since it enables direct query/mutation/schema changes, it should be treated as high-risk. TLS enforcement and dependency hygiene cannot be verified from the provided data; score reflects uncertainty.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

You control the deployment environment and can securely expose the MCP server to trusted agent workflows that need direct Dgraph access.

Avoid When

You need strong access controls, audited write permissions, or predictable retry/idempotency behavior for mutations; also avoid exposing this server broadly without network and auth protections.

Use Cases

• Natural-language or agent-driven Dgraph reads (DQL queries)
• Agent-driven Dgraph writes (RDF mutations)
• Schema management from an MCP client
• Schema inspection for development/ops tooling

Not For

• Production use without additional security hardening and operational safeguards
• Use cases requiring fine-grained authorization per operation/tenant
• Workloads needing robust pagination/retry/idempotency semantics out of the box

Interface

REST API

GraphQL

gRPC

MCP Server

Yes

SDK

Webhooks

Authentication

OAuth: No Scopes: No

No authentication mechanism is described in the provided README. The server is configured only with DGRAPH_HOST and uses standard input/output for MCP transport.

Pricing

Free tier: No

Requires CC: No

Open-source (MIT per README); no pricing model described.

Agent Metadata

Pagination

none

Idempotent

False

Retry Guidance

Not documented

Known Gotchas

⚠ Mutations are not inherently idempotent; repeated tool calls may cause duplicated/changed data depending on RDF content and server behavior.
⚠ No rate-limit or error-retry guidance is documented in the provided README.
⚠ Schema-altering operations are powerful; agents may apply unsafe schema changes unless constrained externally.

Alternatives

Dgraph native HTTP/admin endpoints (with your own application layer) Build a thin custom service exposing only necessary Dgraph operations with OpenAPI/SDKs Use an existing DB-to-agent connector that provides auth, rate limiting, and structured error handling Use Dgraph GraphQL endpoint (if compatible with your needs)

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API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-04-04.