Which alternatives to SIWA (Sign In With Agent) are open source?

5 of 9: Self Protocol, PRXVT, MistTrack MCP, Usenami Signer MCP, CryptoGuard. Openness is read from each project's own published license or repository.

Which alternatives run on the same chains as SIWA (Sign In With Agent)?

5: PRXVT, MistTrack MCP, ChainAware, COTI, Cybercentry. Chain support is self-declared by each project unless a named check says otherwise on its listing.

Has Sato Hub verified any of these?

Sato Hub reproduced the documented install for 3 of them: Self Protocol, PRXVT, MistTrack MCP. Reproducing an install means the documented setup was actually run — it is not a security review, and Sato Hub holds no security assessment of any of these.

How is this list of alternatives built?

It is a rule over live records, not a hand-written list: every listing in SIWA (Sign In With Agent)'s own category that carries a Sato Score, ordered by the same evidence the rest of the site ranks on — Sato Score tier, whether an endpoint answered our probe, whether a deploy spec exists and was reproduced, a sustained observed record, and chain overlap with SIWA (Sign In With Agent). It is rebuilt from the records, so it changes when they do.

Ranked alternatives · updated 2026-09-13

What are the alternatives to SIWA (Sign In With Agent)?

Sato Hub lists 9 alternatives to SIWA (Sign In With Agent) in the Security Tool category as of 2026-09-13; highest Sato Scores: Self Protocol (80), Agent Skills Hub (72), PRXVT (68); 5 open source; 3 with an install Sato Hub reproduced. Ordered by how open, active and verifiable each one is — not by quality, and no winner is declared.

Rule · Every listing in SIWA (Sign In With Agent)’s own category (Security Tool) that carries a Sato Score, ordered by score tier, observed liveness, deploy-spec and reproduced-install evidence, and chain overlap with SIWA (Sign In With Agent).

This page ranks peers on how open, active and verifiable each one is — the same evidence Sato Hub publishes everywhere else. It is not a quality, safety or performance ranking, it declares no winner, and it cannot tell you which of these fits your codebase. A Sato Score is not an audit: none of these has been security-reviewed by Sato Hub, and a listing with no earned verification is self-reported.

#	Alternative	Sato Score	Liveness	Chains	Differs on
1	Self Protocol✓ reproduced Open-source zero-knowledge identity protocol (passport-based proof of personhood) used to gate agent access to onchain services. npm install @selfxyz/enterprise-sdk install reproduced by Sato Hub	High	Active · 7d ago	Multichain	Also on Multichain; does not list Ethereum.
2	Agent Skills Hub A registry of AI agent skills that applies automated source-code scanning and assigns security grades before installation. npx agent-skills-hub install as documented by the project — not reproduced	High	Active · 20d ago	—	Typed as infrastructure; does not list Ethereum; partly open source; deploys as npx.
3	PRXVT✓ reproduced Open-source privacy SDK that adds unlinkable, zero-knowledge payments on top of the x402 agent payment standard. npm install @prxvt/sdk install reproduced by Sato Hub	Medium	no signal	Ethereum, Base, Polygon	Typed as infrastructure; also on Base, Polygon; deploys as npm.
4	MistTrack MCP✓ reproduced MCP server from SlowMist exposing MistTrack address risk scoring and fund-flow tracing to AI agents. npx -y misttrack@latest --key YOUR_MISTTRACK_API_KEY install reproduced by Sato Hub	Medium	Quiet · 5mo ago	Ethereum, Bitcoin, Polygon, Solana, Multichain	Also on Bitcoin, Polygon, Solana, Multichain.
5	ChainAware Pre-built MCP blockchain capability modules giving agents fraud detection, AML scoring, wallet profiling, and token analysis. claude mcp add --transport sse chainaware-behavioural-prediction-mcp-server https://prediction.mcp.chainaware.ai/sse --header "X-API-Key: your-key-here" install as documented by the project — not reproduced	Medium	Recent · 1mo ago	Polygon, Ethereum, BNB Chain, Base, TON, Tron, Solana	Typed as infrastructure; also on Polygon, BNB Chain, Base, TON and 2 more; partly open source; deploys as MCP server, API.
6	COTI Privacy infrastructure that gives MCP-compatible agents private wallets, encrypted messaging, and confidential smart contracts using Garbled Circuits. npm install @coti-io/coti-sdk-typescript install as documented by the project — not reproduced	Medium	Active · 5d ago	COTI, Ethereum	Typed as infrastructure; also on COTI; partly open source.
7	Usenami Signer MCP MCP server that signs CEX/DEX orders inside an attested AWS Nitro Enclave so keys never touch the agent process. npm install @usenami/signer-mcp install as documented by the project — not reproduced	Medium	Active · 2d ago	—	Does not list Ethereum.
8	CryptoGuard Intercepts agent transactions and checks them against 5 security oracles before execution. pip install cryptoguard-ai install as documented by the project — not reproduced	Medium	Quiet · 5mo ago	Multichain	Also on Multichain; does not list Ethereum.
9	Cybercentry Pay-per-use security verification endpoints for AI agents, billed via x402 micropayments. no deploy spec on record	Low	no signal	Base, Ethereum, Solana	Typed as infrastructure; also on Base, Solana; source availability undeclared.

“Differs on” is derived from the records — type, chains, openness and deployment — and states a difference, never a preference. ✓ marks an earned state named as what was checked; none of them is a safety claim.

Questions about alternatives to SIWA (Sign In With Agent)

What are the alternatives to SIWA (Sign In With Agent)?: Self Protocol, Agent Skills Hub, PRXVT, MistTrack MCP, ChainAware, COTI, Usenami Signer MCP, CryptoGuard, Cybercentry are listed in the same category as SIWA (Sign In With Agent) (Security Tool), as of 2026-09-13. The order is Sato Score and observed evidence, not a quality judgment.
Which alternatives to SIWA (Sign In With Agent) are open source?: 5 of 9: Self Protocol, PRXVT, MistTrack MCP, Usenami Signer MCP, CryptoGuard. Openness is read from each project's own published license or repository.
Which alternatives run on the same chains as SIWA (Sign In With Agent)?: 5: PRXVT, MistTrack MCP, ChainAware, COTI, Cybercentry. Chain support is self-declared by each project unless a named check says otherwise on its listing.
Has Sato Hub verified any of these?: Sato Hub reproduced the documented install for 3 of them: Self Protocol, PRXVT, MistTrack MCP. Reproducing an install means the documented setup was actually run — it is not a security review, and Sato Hub holds no security assessment of any of these.
How is this list of alternatives built?: It is a rule over live records, not a hand-written list: every listing in SIWA (Sign In With Agent)'s own category that carries a Sato Score, ordered by the same evidence the rest of the site ranks on — Sato Score tier, whether an endpoint answered our probe, whether a deploy spec exists and was reproduced, a sustained observed record, and chain overlap with SIWA (Sign In With Agent). It is rebuilt from the records, so it changes when they do.

Sources — the projects' own repositories and docs

Keep going

SIWA (Sign In With Agent) on Sato Hub →Every Security Tool listing →How the Sato Score works →

Cite this page

Sato Hub. "Alternatives to SIWA (Sign In With Agent)." Sato Hub, updated 2026-09-13, accessed 2026-09-14. https://satohub.ai/alternatives/siwa-sign-in-with-agent

Data last refreshed 2026-09-13; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.