# Sponge Wallet vs Turnkey Agentic Wallets

> Turnkey Agentic Wallets scores 76 (BB) 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 onchain. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/sponge-wallet-vs-turnkey-agentic-wallets
- Markdown: https://www.anchorterminal.com/compare/sponge-wallet-vs-turnkey-agentic-wallets.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/sponge-wallet-vs-turnkey-agentic-wallets.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/sponge-wallet-vs-turnkey-agentic-wallets.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Turnkey Agentic Wallets scores 76 (BB) 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 onchain.

- Sponge Wallet: grade E, 43.2/100, rank #785 of 842. Markdown https://www.anchorterminal.com/tools/sponge-wallet.md · JSON https://www.anchorterminal.com/api/v1/tools/sponge-wallet.json
- Turnkey Agentic Wallets: grade BB, 76/100, rank #38 of 842. Markdown https://www.anchorterminal.com/tools/turnkey-agentic-wallets.md · JSON https://www.anchorterminal.com/api/v1/tools/turnkey-agentic-wallets.json

## Which one, for what

### Sponge Wallet (E)

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 58

Watch for: No status page, SLA or numeric rate limit was found, and the terms say the service may be offered in beta

### Turnkey Agentic Wallets (BB)

Good for: A company that wants agents to sign from its own wallets under rules checked in an enclave, with a person co-approving large transactions, across EVM, Solana, Bitcoin, Tron and other chains.

Ahead on:
- Reliability, 75 against 13
- Schema & documentation, 79 against 66
- Agent ergonomics, 77 against 43
- Security & auth, 85 against 48
- Maintenance & community, 83 against 27
- Transparency & trust, 72 against 39

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: Policy conditions cap value per transaction. No daily, rolling or cumulative spending limit was found in the policy language


## Score by category

| Category | Weight | Sponge Wallet | Turnkey Agentic Wallets | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 13 | 75 | Turnkey Agentic Wallets +62 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 66 | 79 | Turnkey Agentic Wallets +13 |
| Agent ergonomics | 13% (16.2 this run) | 43 | 77 | Turnkey Agentic Wallets +34 |
| Security & auth | 14% (17.5 this run) | 48 | 85 | Turnkey Agentic Wallets +37 |
| Payments & pricing | 10% (12.5 this run) | 70 | 58 | Sponge Wallet +12 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 27 | 83 | Turnkey Agentic Wallets +56 |
| Transparency & trust | 7% (8.8 this run) | 39 | 72 | Turnkey Agentic Wallets +33 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **43.2 · E** | **76 · BB** | |

## Facts side by side

| Fact | Sponge Wallet | Turnkey Agentic Wallets |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Sponge Inc. | Turnkey Global, Inc. |
| Hosted endpoint | `https://api.wallet.paysponge.com` | `https://api.turnkey.com` |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Free | Freemium |
| x402 | payer tooling only | payer tooling only |
| Licence | Proprietary service under Sponge's terms of service. The SDK and CLI packages on npm are MIT, and the repository they name is private | Proprietary service under Turnkey's terms of service. The SDKs, the CLI and the agent skills on GitHub are Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-07-07 | 2026-10-08 |
| Terms last updated | 2026-06-30 | 2026-08-06 |
| Privacy policy last updated | 2026-06-30 | 2026-06-29 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 126 npm/wk, 20 PyPI/wk | 304k npm/wk, 12k PyPI/wk |

## Verdicts

**Sponge Wallet.** An agent can register a wallet with one unauthenticated call and pay x402 or MPP endpoints under daily, weekly and monthly limits enforced on Sponge's servers. No status page, rate limits, fee schedule, custody statement or security contact was found, the terms run to eleven short clauses, and the SDK was last published on 7 July 2026.

**Turnkey Agentic Wallets.** An agent gets a non-root user that can sign nothing until a policy allows it, with DENY rules taking precedence and human co-approval available. Policies cap value per transaction only, with no daily or rolling limit found, and each organisation gets five policies below Enterprise. Signing endpoints returned elevated errors for five hours on 27 August 2026.

## Before you call either

### Sponge Wallet

1. Send `Sponge-Version` on every REST request. The skill file marks it required and the API answers with version status headers
2. Use `evmTransfer` and `solanaTransfer`, the helpers the docs describe as enforcing allowlists and spending limits, not plain `transfer`
3. Store the `apiKey` from registration at once. It is returned a single time, and losing it means registering again
4. Call `GET /api/discover/{serviceId}` before `POST /api/paid/fetch`. The skill file says direct service URLs fail with auth errors
5. Treat `card details` output as secret. It returns an encrypted card number and CVC with a one-time `secret_key`

### Turnkey Agentic Wallets

1. Use a non-root user's key. Refuse root credentials for unattended work, because root bypasses every policy
2. Scope every signing ALLOW policy by `wallet.id` or `wallet_account.address`, or it covers every key the user can reach
3. Check the activity status on each response. `ACTIVITY_STATUS_CONSENSUS_NEEDED` means a person must approve within 24 hours
4. Retry with the identical body to stay idempotent. Changing `timestampMs` creates a new activity
5. Back off with jitter on 429 and poll `get_activity` sparingly, since polling counts against the same 1 to 3 requests a second

## Questions

### Which is better for AI agents, Sponge Wallet or Turnkey Agentic Wallets?

Turnkey Agentic Wallets scores 76 (BB) on agent readiness against Sponge Wallet's 43.2 (E), and leads in 6 of 7 scored categories. Sponge Wallet leads on payments & pricing.

### Do Sponge Wallet and Turnkey Agentic Wallets need an API key?

Sponge Wallet takes an API key or an OAuth sign-in. Turnkey Agentic Wallets needs an API key.

### Can an agent call Sponge Wallet and Turnkey Agentic Wallets without installing anything?

Yes. Sponge Wallet has a hosted endpoint at https://api.wallet.paysponge.com and Turnkey Agentic Wallets at https://api.turnkey.com.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/sponge-wallet-vs-turnkey-agentic-wallets.json, and with the fewest tokens: https://www.anchorterminal.com/compare/sponge-wallet-vs-turnkey-agentic-wallets.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "sponge-wallet", "b": "turnkey-agentic-wallets"}`. From a terminal: `anchor compare sponge-wallet turnkey-agentic-wallets`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/sponge-wallet.json and https://www.anchorterminal.com/api/v1/tools/turnkey-agentic-wallets.json

## Other comparisons with Sponge Wallet or Turnkey Agentic Wallets

- [Circle Wallets (Agent Wallets, Programmable Wallets) vs Sponge Wallet](https://www.anchorterminal.com/compare/circle-wallets-vs-sponge-wallet.md)
- [Circle Wallets (Agent Wallets, Programmable Wallets) vs Turnkey Agentic Wallets](https://www.anchorterminal.com/compare/circle-wallets-vs-turnkey-agentic-wallets.md)
- [Coinbase Developer Platform (Agentic Wallet, AgentKit, CDP MCP) vs Sponge Wallet](https://www.anchorterminal.com/compare/coinbase-cdp-agentkit-vs-sponge-wallet.md)
- [Coinbase Developer Platform (Agentic Wallet, AgentKit, CDP MCP) vs Turnkey Agentic Wallets](https://www.anchorterminal.com/compare/coinbase-cdp-agentkit-vs-turnkey-agentic-wallets.md)
- [Privy Wallets (server wallets, agent wallets, policy engine) vs Sponge Wallet](https://www.anchorterminal.com/compare/privy-vs-sponge-wallet.md)
- [Privy Wallets (server wallets, agent wallets, policy engine) vs Turnkey Agentic Wallets](https://www.anchorterminal.com/compare/privy-vs-turnkey-agentic-wallets.md)