Drand
An MCP server that provides access to the drand network for obtaining verifiable random values. Enables AI agents and applications to fetch cryptographically secure random beacons and verify their validity.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
No secrets required - public network interaction only. TLS enforced for network communication. Minimal attack surface. Dependency list is lean (MCP SDK, drand-client, zod, cross-fetch) - all are standard, well-maintained packages. RC1 version suggests not yet production-stable. No auth means no elevation risks, but also no user isolation.
⚡ Reliability
Best When
You need verifiable, auditable randomness that can be cryptographically proven to be fair and non-manipulated by any single party.
Avoid When
You need traditional pseudorandom numbers for performance, or when the overhead of network requests to drand network outweighs the need for verifiability.
Use Cases
- • Generating repeatable, verifiable randomness for model-driven sampling workflows
- • Selecting items from lists or datasets using cryptographic randomness as seed
- • Verifying outputs of other random processes using historical drand beacon data
- • Enabling trustworthy stochastic decision-making in agentic systems (e.g., reward payouts)
- • Creating auditable randomization in multi-agent interactions
Not For
- • High-frequency random number generation (drand emits beacons at ~13-second intervals)
- • Applications requiring sub-second latency
- • Direct cryptographic operations (only provides random values, not signing/encryption)
- • Deterministic computation (by design produces different values over time)
Interface
Authentication
Public drand network requires no authentication. Server communicates with public drand infrastructure without credentials.
Pricing
Open-source MIT license. No commercial service, no hosting costs. Only cost is network bandwidth to drand quicknet.
Agent Metadata
Known Gotchas
- ⚠ No error handling documentation makes it unclear how to handle network failures
- ⚠ No rate limiting information - agents may saturate network without guidance
- ⚠ Tools return raw beacon data without built-in validation helpers
- ⚠ No built-in timeout/circuit-breaker patterns documented
Alternatives
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Scores are editorial opinions as of 2026-04-04.