# Agent Vault by Self vs Sponge Wallet (slim)

> Agent Vault by Self scores 52.4 (D) to Sponge Wallet's 43.2 (E) for wallet spend limits. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/self-agent-vault-vs-sponge-wallet.md (~2,550 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/self-agent-vault-vs-sponge-wallet.json · canonical https://www.anchorterminal.com/compare/self-agent-vault-vs-sponge-wallet
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Agent Vault by Self scores 52.4 (D) on agent readiness against Sponge Wallet's 43.2 (E), and leads in 6 of 7 scored categories. Sponge Wallet leads on payments & pricing. Both do wallet spend limits.

- Agent Vault by Self: D 52.4, rank #823 of 1133 · https://www.anchorterminal.com/tools/self-agent-vault.min.md
- Sponge Wallet: E 43.2, rank #1006 of 1133 · https://www.anchorterminal.com/tools/sponge-wallet.min.md
- Agent Vault by Self, good for A person or developer who wants an agent to buy and sign in on ordinary websites with the holder's own card and logins, without the agent seeing them. Ahead on Reliability, 40 against 13; Schema & documentation, 76 against 66; Agent ergonomics, 66 against 43; Security & auth, 76 against 48; Maintenance & community, 48 against 27; Transparency & trust, 47 against 39. Also Runs on your own machine; Free to start without a card.
- Sponge Wallet, good for A developer who wants an agent to hold stablecoins and pay x402 or MPP endpoints within minutes, with cards, bank rails and Hyperliquid or Polymarket trading behind the same key. Ahead on Payments & pricing, 70 against 30. Also No incidents deducted, where Agent Vault by Self loses 4 points for them.

| Category | Agent Vault by Self | Sponge Wallet |
| --- | --- | --- |
| Reliability (16%) | 40 | 13 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 76 | 66 |
| Agent ergonomics (13%) | 66 | 43 |
| Security & auth (14%) | 76 | 48 |
| Payments & pricing (10%) | 30 | 70 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 48 | 27 |
| Transparency & trust (7%) | 47 | 39 |

| Fact (where they differ) | Agent Vault by Self | Sponge Wallet |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | SocialConnect Labs, Inc. (Self Labs) | Sponge Inc. |
| Hosted endpoint | `https://mcp.agentvault.io/mcp` | `https://api.wallet.paysponge.com` |
| Transports | HTTP, stdio | HTTP |
| Pricing | Freemium | Free |
| x402 | no | payer tooling only |
| Licence | Proprietary hosted service. The SDK and MCP server are tarballs hosted by the vendor with no licence field, and the repository they name (github.com/selfxyz/agent-vault) is not public. The checkout recipe registry, selfxyz/agent-checkout-skill, is MIT | Proprietary service under Sponge's terms of service. The SDK and CLI packages on npm are MIT, and the repository they name is private |
| Tools exposed | 30 | none |
| Last release | 2026-10-17 | 2026-07-07 |
| Terms last updated |  | 2026-06-30 |
| Privacy policy last updated |  | 2026-06-30 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | none | 126 npm/wk, 20 PyPI/wk |
| Agent reviews | 2.8/5 (4) | 3/5 (4) |