Volume data, AI agent readiness scores, SDK maturity, and integration complexity — everything you need to choose.
| # | Protocol | Type | All-Time Vol | Monthly Vol (Recent) | Chains | Custody | Settlement Speed | MEV Protect | SDK / API | KYC Risk | AI Agent Score | Integration Days |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tier 1 — Best for AI Agent Integration | ||||||||||||
| 1 | NEAR Intents fka Defuse |
Intent + MPC chain sigs | $10B+ | $2.15B | 25+ (EVM + BTC + SOL + Sui + Starknet + Zcash) | Non-custodial | Seconds (NEAR) + bridge time cross-chain | Strong | TS + Rust + Go + 1Click API | None | 9.5 |
1-3 (1Click) / 5-7 (full) |
| 2 | 1inch Fusion+ | Intent + Dutch auction + HTLC atomic | $200B+* | ~$15-20B* | 13+ EVM + Solana + TON | Non-custodial | Seconds–minutes (Dutch auction fill) | Best | TS + Go + Solana SDK | None | 9.0 |
2-5 |
| 3 | deBridge DLN (intent-based) |
Intent + solver (0-TVL) | $18B+ | $1.53B (Nov '25) | 26+ (EVM + Solana + Tron) | Non-custodial | ~2 seconds | Partial | TS SDK + REST API | None | 8.8 |
1-3 |
| 4 | SwapKit THORChain + Chainflip + Maya + NEAR |
Meta-SDK (multi-protocol) | $14B+ (THORChain alone) | ~$1-2B | 30+ (EVM + BTC + DOGE + LTC + XRP + SOL) | Non-custodial | 15-60 min (THORChain) | Slip-based | TS SDK + REST API | None | 8.2 |
1-2 |
| Tier 2 — Strong Infrastructure, Good for Agents | ||||||||||||
| 5 | Across Protocol UMA optimistic oracle |
Intent + relayer (fill-first) | $20B+ | ~$2-3B | 10+ (Ethereum L2-focused: Arb, Base, OP, Polygon) | Non-custodial | <1 minute | Partial | TS SDK + REST API | None | 8.0 |
2-4 |
| 6 | LI.FI Bridge + DEX aggregator |
Meta-aggregator (routes through 15+ bridges) | $10B+ | ~$1-2B | 25+ (via aggregated backends) | Non-custodial | Varies by route (seconds–minutes) | Route-dependent | TS SDK + REST API + Widget | None | 7.8 |
2-5 |
| 7 | Stargate LayerZero V2 |
Unified liquidity pools + messaging | $15B+ | ~$1-2B | 40+ (EVM-focused; native asset transfers) | Non-custodial | Minutes (guaranteed finality) | None | TS SDK + Solidity composable | None | 7.2 |
3-7 |
| 8 | Wormhole Portal Token Bridge |
Guardian network + messaging | $40B+ | ~$2-4B | 30+ (EVM + Solana + Sui + Aptos + Cosmos + NEAR) | Non-custodial | ~1 minute | None | TS SDK + multi-lang + Connect widget | None | 7.0 |
3-7 |
| Tier 3 — Usable but Significant Limitations for Agents | ||||||||||||
| 9 | Symbiosis Cross-chain AMM |
AMM + MPC relayers | $5B+ | ~$500M-1B | 45+ (EVM + BTC + Tron + TON) | Non-custodial | 1-5 minutes | None | TS SDK + REST + Widget | None | 6.5 |
3-5 |
| 10 | Changelly Centralized aggregator |
Centralized LP routing | $50B+ (since 2015) | ~$1-2B | 170+ (widest coverage) | Semi-custodial | 5-40 minutes | None | REST v2 only; no SDK | HIGH — RMS freezes | 2.5 |
3-5 |
* 1inch all-time includes same-chain aggregation volume across all chains; Fusion+ cross-chain subset is a fraction. Monthly estimate covers total aggregation (Fusion + Classic). Volume data as of Q1 2026.
| Protocol | Headless Signing | KYC / Human Intervention | Atomic Settlement | SDK Maturity | AI-Native Features | Failure Recovery | Multi-Signer Support | Score |
|---|---|---|---|---|---|---|---|---|
| NEAR Intents | ★★★ NEAR KeyPair, viem, ERC-191, ed25519 raw, BIP-322 | Zero | Yes Verifier contract | v0.4.x Active dev | Shade Agents + TEE + NEAR AI Cloud | Funds stay in Verifier; user withdraws | Best 5 standards | 9.5 |
| 1inch Fusion+ | ★★★ PrivateKeyProviderConnector EVM; Solana Keypair | Zero | Yes HTLC escrows | Mature v5.6 router | None | Auto-refund via timelock | Good EVM + Solana | 9.0 |
| deBridge | ★★★ Standard EVM + Solana signing | Zero | Intent-based solver-fills | Mature | None | Auto-refund if no solver fills | Good EVM + Solana | 8.8 |
| SwapKit | ★★☆ REST headless good; SDK needs wallet connector | Zero | Near-atomic THORChain outbound queue | Mature | None | Auto-refund on failure; multi-provider failover | Limited per-chain wallet | 8.2 |
| Across | ★★★ Standard EVM signing | Zero | Yes Relayer fills + UMA verification | Mature | None | UMA dispute window; auto-settle | EVM only | 8.0 |
| LI.FI | ★★★ Standard EVM signing via API | Zero | Route-dependent | Mature | None | Depends on underlying bridge | EVM primary | 7.8 |
| Stargate | ★★☆ On-chain composable (CPI-style) | Zero | Guaranteed finality | Mature | None | Bus/Taxi mode; guaranteed delivery | EVM only | 7.2 |
| Wormhole | ★★☆ Multi-VM SDK but complex setup | Zero | Guardian-verified | Mature but complex | None | Guardian network re-signs; may need manual recovery | Multi-VM | 7.0 |
| Symbiosis | ★★☆ Standard EVM | Zero | MPC-verified | Growing | None | MPC relayers handle; may delay | EVM primary | 6.5 |
| Changelly | ★☆☆ Send to address only; no smart contract | HIGH RMS freezes; manual KYC | No Sequential; trust-based | API only No SDK | None | Manual refund 1-10 biz days | N/A | 2.5 |
| Protocol | All-Time Volume | 2025 Annual (est.) | Q4 2025 | Latest 30-Day | Latest 7-Day | Unique Users | Total Txs | Source |
|---|---|---|---|---|---|---|---|---|
| 1inch (all modes) | $200B+ | ~$80-100B | ~$25-30B | ~$15-20B | ~$4-5B | Millions | Hundreds of millions | 1inch blog, CCN |
| Wormhole | $40B+ | ~$15-20B | ~$4-6B | ~$2-4B | — | — | 1B+ messages | Wormhole dashboard |
| Changelly | $50B+ (since 2015) | ~$10-15B | — | ~$1-2B | — | 6M+ users | — | Changelly reports |
| Across Protocol | $20B+ | ~$12-15B | ~$3-4B | ~$2-3B | — | — | 14M+ | Across blog, DefiLlama |
| deBridge | $18B+ | ~$12-14B | ~$4-5B | $1.53B (Nov '25) | — | 385K+ | 5.6M+ | Phemex, DefiLlama |
| Stargate | $15B+ | ~$8-10B | ~$2-3B | ~$1-2B | — | — | — | DefiLlama (TVL $300M+) |
| THORChain/SwapKit | $14B+ | ~$8-10B | ~$2-3B | ~$1-2B | — | — | — | SwapKit, THORChain docs |
| NEAR Intents | $10B+ | ~$8-9B (2H heavy) | ~$3-4B | $2.15B | $600M+ | 541K (30d) | 15.7M+ | Dune Analytics, Jan 2026 |
| LI.FI | $10B+ | ~$6-8B | — | — | — | — | — | DefiLlama |
| Symbiosis | $5B+ | ~$3-4B | — | ~$500M-1B | — | — | — | Symbiosis blog |
Note: Cross-chain bridge volume total ~$18.8B/month across all protocols (DefiLlama, late 2025). Cross-chain volume hit $56.1B in July 2025 (record). Volume figures are best estimates — protocols report differently.
Scoring is weighted for autonomous AI agent operation: no human intervention, programmatic signing, atomic guarantees, and permissionless access.
Disqualified: Changelly (KYC freezes mid-swap = incompatible with autonomous agents).
Honorable mentions: Across (best L2 bridge but EVM-only), LI.FI (great meta-aggregator), Wormhole (broadest messaging but 2022 exploit history).
Architecture: NEAR Intents as intent/settlement layer → 1inch + deBridge for EVM speed → SwapKit for BTC/native assets. LI.FI as optional meta-routing fallback.