Heisto
heisto-dev/heisto-mcp
Prompt-injection Guard checks and public AI red-teaming arena data from Heisto on Solana.
- tools
- 5
- transport
- HTTP
- last updated
- Nov 13, 2026
Tools
5 toolsPublic tool metadata for what this MCP can expose to an agent.
guard_checkPattern-based Guard checker returning score, action, categories and a limitation note.
Pattern-based Guard checker returning score, action, categories and a limitation note.
No parameter schema in public metadata yet.
arena_configReturns the public arena configuration: network, pool limits, fee split, breach rule and refund delay.
Returns the public arena configuration: network, pool limits, fee split, breach rule and refund delay.
No parameter schema in public metadata yet.
list_sentinelsLists public Sentinel summaries and challenge links for a given network.
Lists public Sentinel summaries and challenge links for a given network.
No parameter schema in public metadata yet.
get_sentinelReturns the public objective and public instructions for a single Sentinel.
Returns the public objective and public instructions for a single Sentinel.
No parameter schema in public metadata yet.
recent_attemptsReturns settled public verdicts only for a Sentinel.
Returns settled public verdicts only for a Sentinel.
No parameter schema in public metadata yet.
Sponsors
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Heisto MCP
Heisto is an AI red-teaming arena on Solana. Builders publish AI defenses and public objectives; participants test those defenses, while recorded verdicts and on-chain transactions provide evidence of arena activity. This MCP integration exposes the pattern-based Guard checker and a restricted view of information already public on the Heisto website.
Endpoint: https://heisto.xyz/mcp
Transport: Streamable HTTP, stateless
Authentication for reading: none
Namespace: xyz.heisto/arena, version 1.0.0
The Heisto program is upgradeable and has not been independently audited.
Release status
Live and registered: xyz.heisto/arena, version 1.0.0, was published to
the Official MCP Registry on November 13, 2026, using HTTP domain authentication.
- Official Registry record
- Live server metadata
- Public domain-ownership proof
- Release verification summary
Details
- Repository
- github.com/heisto-dev/heisto-mcp
- Website
- heisto.xyz
- Categories
- AI & LLM Tools, Data & Analytics, Finance & Commerce
- Transport
- HTTP
- Registry
- MCP registry, active
