+ defi-transaction-payload

> DeFi transaction payload

// Returns a ready-to-sign transaction payload for DeFi operations like swaps, stakes, or claims

defitransactionpayloadsigning

Returns a ready-to-sign transaction payload for DeFi operations like swaps, stakes, or claims. Agents can request it by capability ID defi.transaction_payload, or by plain intent — EntRoute resolves phrases like “transaction payload”, “swap transaction” and “defi tx” to this capability.

EntRoute currently lists 50+ endpoints from 10 providers for defi.transaction_payload, priced from $0.001 to $0.1 per call, settled in USDC on Base. The quickest responds in about 23ms at the 95th percentile. Every endpoint below is re-probed every 10 minutes for a valid 402 payment challenge; the ordering blends measured success rate, latency and price rather than provider claims.

// aliases.json

These phrases resolve to this capability with intent-based discovery.

"transaction payload" "swap transaction" "defi tx" "unsigned transaction"
// discover.sh
curl -X POST https://api.entroute.com/discover \
  -H "Content-Type: application/json" \
  -d '{"capability_id": "defi.transaction_payload"}'
// endpoints.json
50 results
#1 x402.coinstats.app listed
$0.0010
https://x402.coinstats.app/wallet/transactions
success: 100%
latency: 23ms
#2 Httpay listed
$0.0050
https://httpay.xyz/api/bridge-route-pinger
success: 100%
latency: 28ms
#3 api.x402node.dev listed
$0.0050
https://api.x402node.dev/chain/wallet-label
success: 100%
latency: 79ms
#4 Httpay listed
$0.0100
https://httpay.xyz/api/bridge-rates
success: 100%
latency: 37ms
#5 Mesh listed
$0.0100
https://mesh.heurist.xyz/x402/agents/EtherscanAgent/get_erc20_token_transfers
success: 100%
latency: 49ms
#6 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-slippage-bounds-check
success: 100%
latency: 199ms
#7 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-confirmation-count
success: 100%
latency: 199ms
#8 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-deadline-check
success: 100%
latency: 200ms
#9 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-hex-data-normalize
success: 100%
latency: 200ms
#10 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-calldata-shape-check
success: 100%
latency: 205ms
#11 api.x402node.dev listed
$0.0120
https://api.x402node.dev/contract/tx-status
success: 100%
latency: 30ms
#12 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-block-age-check
success: 100%
latency: 206ms
#13 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-receipt-status-check
success: 100%
latency: 207ms
#14 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-calldata-size-bytes
success: 100%
latency: 208ms
#15 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-log-topic-count-check
success: 100%
latency: 210ms
#16 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-finality-depth-check
success: 100%
latency: 215ms
#17 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-calldata-selector-extract
success: 100%
latency: 215ms
#18 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/base-settlement-receipt-check
success: 100%
latency: 218ms
#19 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-batch-value-sum
success: 100%
latency: 220ms
#20 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-replacement-fee-bump
success: 100%
latency: 220ms
#21 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-access-list-shape-check
success: 100%
latency: 222ms
#22 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-value-plus-fee-budget
success: 100%
latency: 222ms
#23 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-blob-count-check
success: 100%
latency: 223ms
#24 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/hex-to-rgb
success: 100%
latency: 226ms
#25 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/x402-settlement-tx-shape
success: 100%
latency: 226ms
#26 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/rgb-to-hex
success: 100%
latency: 228ms
#27 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-contract-creation-check
success: 100%
latency: 229ms
#28 api.x402node.dev listed
$0.0050
https://api.x402node.dev/chain/account-nonce
success: 100%
latency: 173ms
#29 x402.blocknotify.com listed
$0.0010
https://x402.blocknotify.com/v1/simulate-transaction
success: 100%
latency: 241ms
#30 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/base-usdc-decimal-rounding
success: 100%
latency: 254ms
#31 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/base-block-time-estimate
success: 100%
latency: 260ms
#32 api.myco2suite.io listed
$0.0010
https://api.myco2suite.io/api/v1/transaction
success: 100%
latency: 261ms
#33 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-chain-id-hex-normalize
success: 100%
latency: 264ms
#34 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-signature-rs-shape-check
success: 100%
latency: 267ms
#35 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/evm-tx-type-classify
success: 100%
latency: 272ms
#36 api.delx.ai listed
$0.0010
https://api.delx.ai/api/v1/x402/base-usdc-recipient-check
success: 100%
latency: 274ms
#37 api.x402node.dev listed
$0.0050
https://api.x402node.dev/chain/btc-fees
success: 100%
latency: 225ms
#38 api.x402node.dev listed
$0.0200
https://api.x402node.dev/crypto/abi-encode
success: 100%
latency: 28ms
#39 x402.blocknotify.com listed
$0.0010
https://x402.blocknotify.com/v1/analyze-transaction
success: 100%
latency: 333ms
#40 api.nansen.ai listed
$0.0100
https://api.nansen.ai/api/v1/profiler/address/transactions
success: 100%
latency: 201ms
#41 api.x402node.dev listed
$0.0120
https://api.x402node.dev/nft/transfers
success: 100%
latency: 178ms
#42 api.x402node.dev listed
$0.0100
https://api.x402node.dev/chain/counterparty-graph
success: 100%
latency: 243ms
#43 Httpay listed
$0.0200
https://httpay.xyz/api/bridge-intel
success: 100%
latency: 135ms
#44 api.strale.io listed
$0.0100
https://api.strale.io/x402/sepa-xml-validate
success: 100%
latency: 302ms
#45 Httpay listed
$0.0500
https://httpay.xyz/api/x402-recent-txns
success: 100%
latency: 63ms
#46 api.x402node.dev listed
$0.0500
https://api.x402node.dev/wallet/age-activity
success: 100%
latency: 245ms
#47 api.x402node.dev listed
$0.1000
https://api.x402node.dev/wallet/first-funder
success: 100%
latency: 32ms
#48 Aeml X402 listed
$0.1000
https://aeml-x402.zeabur.app/gauge/filing-company
success: 100%
latency: 207ms
#49 api.x402node.dev listed
$0.1000
https://api.x402node.dev/wallet/counterparty-graph
success: 100%
latency: 213ms
#50 api.x402node.dev listed
$0.1000
https://api.x402node.dev/wallet/exposure
success: 100%
latency: 225ms
// integrate.md

Use this capability in your agent or application:

TypeScript SDK → MCP Server → REST API →
// faq

Frequently asked questions about DeFi transaction payload

How much does a defi transaction payload API call cost?

Endpoints listed for defi.transaction_payload on EntRoute are priced from $0.001 to $0.1 per call. Payment is per request — there is no subscription, account or API key. Prices shown are read from each endpoint's live 402 response, not from a provider-supplied catalogue.

How do AI agents pay for defi transaction payload endpoints?

Via the x402 protocol. The agent calls the endpoint, receives an HTTP 402 Payment Required response describing the price and recipient, signs a stablecoin payment (USDC on Base), and retries the request with proof of payment. The whole exchange takes seconds and needs no human approval.

How many providers offer defi transaction payload?

50+ endpoints are currently listed for defi.transaction_payload across 10 providers. That number moves as endpoints are added and as failing ones are demoted.

Are these defi transaction payload endpoints verified?

Each one is probed every 10 minutes to confirm it still returns a well-formed 402 challenge on a payable network. Endpoints whose 7-day success rate drops below 50% are moved out of the ranked list into fallbacks with an explicit exclusion reason, so an agent can decide whether to retry them.

// related capabilities
defi.portfolio defi

Returns DeFi portfolio including token balances, LP positions, and protocol positions for a wallet

defi.swap_quote defi

Returns a quote for swapping one token for another including price, slippage, and route

defi.token_price defi

Returns current price and market data for DeFi tokens across DEXs

defi.yield_opportunities defi

Returns available yield farming and staking opportunities with APY and risk data

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