Superagent
SDK for AI agent safety that blocks prompt injections and unsafe tool calls, redacts PII and secrets, and runs red-team scenarios.
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About Superagent
Superagent is listed in our security & governance category and is aimed at builders. SDK for AI agent safety that blocks prompt injections and unsafe tool calls, redacts PII and secrets, and runs red-team scenarios. Pricing, as the maker states it: SDK free and open source (MIT); hosted service free for open-source repos; private repos: free 100 credits/month, Starter $499/mo, Growth $1,499/mo, Scale from $3,999/mo. Maturity: Mature. We last checked the official link on 2026-10-21.
What is Superagent?
Superagent is an open-source SDK for AI agent safety. Its Guard call detects and blocks prompt injections, malicious instructions and unsafe tool calls at runtime, and Redact strips PII, PHI and secrets from text, with TypeScript and Python clients.
It can also scan repositories for attacks aimed at AI agents, such as repo poisoning and planted instructions, and run red-team scenarios against your agent. Alongside the SDK, Superagent sells a hosted security product that is free for open-source repositories, with credit-based plans for private ones.
Sources: the official README and our directory listing, checked 2026-10-21. Official site: superagent.sh.
Who is Superagent for?
Teams building AI apps and agents that handle untrusted input or sensitive data.
Superagent at a glance
- Open source: Yes (MIT License)
- GitHub: superagent-ai/superagent · 6,770 stars · 966 forks (as of Oct 21, 2026)
Key features
- Prompt-injection and unsafe tool-call guard
- PII, PHI and secret redaction
- Repository scans for agent-targeted attacks
- Red-team scenarios
- TypeScript and Python SDKs
Superagent pricing
- Open source: Free · SDK (MIT); hosted use free on public repositories
- Free: $0 · 100 private-repository credits a month
- Starter: $499/mo · 500 credits a month
- Growth: $1,499/mo · 2,000 credits a month
- Scale: from $3,999/mo · 6,000 credits a month
Annual plans include 20% more credits.
Source: official pricing page, checked Oct 21, 2026. Prices change; check the source before buying.
Superagent FAQ
What is Superagent?
Superagent is an open-source SDK for AI agent safety. Its Guard call detects and blocks prompt injections, malicious instructions and unsafe tool calls at runtime, and Redact strips PII, PHI and secrets from text, with TypeScript and Python clients.
Who is Superagent for?
Teams building AI apps and agents that handle untrusted input or sensitive data.
Is Superagent free?
Yes. Superagent has a free option (Open source, Free), according to its pricing page (checked Oct 21, 2026).
How much does Superagent cost?
As of Oct 21, 2026, Superagent's official pricing page lists: Open source: Free; Free: $0; Starter: $499/mo; Growth: $1,499/mo; Scale: from $3,999/mo. Annual plans include 20% more credits.
Is Superagent open source?
Yes. Superagent is released under the MIT License, according to its GitHub repository.
What are alternatives to Superagent?
Similar tools include Agent Vault, ThinkWatch Lite, OpenAPPA, Wren Pre-sign Check, Eleven and wren-guard Pro.
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Superagent alternatives
Other security & governance tools in our directory. See all security & governance tools →
Agent Vault
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ThinkWatch Lite
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OpenAPPA
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Wren Pre-sign Check
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Eleven
An agent-first reverse-engineering app for macOS, Windows and Linux: load any app or binary and ask your AI agent what it does while it disassembles and analyzes the code for you.
wren-guard Pro
wren-guard Pro is a TypeScript guard library for AI agents that hold or move funds on Base and other EVM chains (viem, CDP AgentKit, Privy, Eliza and similar stacks). It enforces allowlisted, capped and simulated sends, decodes calldata and signatures to flag unlimited approvals, Permit, Permit2, setApprovalForAll and EIP-7702 delegation, screens for injected instructions and watches nonces. It ships with an 89-scenario attack corpus drawn from public agent wallet incidents and a GitHub Action that fails CI if your agent's policy would let a known attack through. The original Python wren-guard is free and MIT licensed.
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