x402 census · api.liquidagent.ai · c667121d6a58 · JSON

POST /v1/gas

unprobed

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the sig…

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://api.liquidagent.ai/v1/gas

Method POST

Price $0.03 USDC = 30000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts eip155:137

payTo 0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90

Seller api.liquidagent.ai

Catalogs cdp (row updated 2026-09-17)

Listed since (lower bound) 2026-09-17 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-17

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-17 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags · gas, paymaster, erc-4337, sponsorship, base

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 2

Payments 24

USDC volume $0.09

Median payment n/a

First / last payment 2026-09-28 / 2026-09-29

Sampler-shaped share of payments n/a

Payers that are not samplers n/a

Source blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total

Address 0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "method": "pm_getPaymasterData",
   "params": [
    {
     "callData": "0x",
     "callGasLimit": "0x30d40",
     "maxFeePerGas": "0x5f5e100",
     "maxPriorityFeePerGas": "0xf4240",
     "nonce": "0x0",
     "preVerificationGas": "0x13880",
     "sender": "0xYourSmartAccount",
     "verificationGasLimit": "0x186a0"
    },
    "0x4337084D9E255Ff0702461CF8895CE9E3b5Ff108",
    "0x2105",
    {
     "x402": "<payment object>"
    }
   ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "paymaster": "0x9676897C3BF08977Cdbe78213F84e72A29b844eC",
   "paymasterData": "0x…",
   "paymasterPostOpGasLimit": "0x0",
   "paymasterVerificationGasLimit": "0xea60",
   "validUntil": 1790000000
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.liquidagent.ai/v1/gas' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/c667121d6a58/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c667121d6a58"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.liquidagent.ai.