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Liquid Agent: Save, Earn & Send Money from One Account

https://api.liquidagent.ai/v1/bridge
● healthy crypto

One account for your money. And a Copilot that only acts when you approve. Earn on savings, send money in seconds, and buy stocks from $1, all from one balance, with none of the crypto.

Category
crypto
Chains
base, eip155:137, eip155:5042, eip155:8453, solana, solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp
Price
$0.0010–$1.0358 USDC

Quality grade

How grading works
A 77.1 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 402)
Payability 15.0 / 15
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 18.1 / 35
57 distinct payers, 383 USDC transfers in the last 30 days; the wallet is shared by 2 listings, so each is credited 1/2
Performance 9.9 / 10
Last probe answered in 218 ms (full marks at 200 ms or less)
Readiness 14.1 / 15
Agent readiness 94/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 18 h ago. On-chain activity last read 3 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

A · 94/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here A, 77.1/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 10/10 Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge 25/25 Paid endpoint answers with an HTTP 402 challenge (218 ms).
x402 version 10/10 Speaks x402 v2.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 15/15 32/32 probes succeeded over 30 days (100%).
Resource declaration 10/10 Declares 37 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 5/5 seen in a source within 7 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 85 points, scaled to 100.
Responsiveness: Responsive (218 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, catalog_listing. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness
Higher than 95% of peers
This listing 94 · peer median 78
Latency
Faster than 47% of peers
This listing 218 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

37 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

https://api.liquidagent.ai/v1/balance/%7Bagent%7D
https://api.liquidagent.ai/v1/basket
https://api.liquidagent.ai/v1/bridge $1.0352 / call

The one-signature USDC bridge for x402 agents. Bridge USDC from Base to Arc: receive exactly 1 USDC at your own address, all fees included. Add ref=<your address> to earn 20% of the fee. Routes: Base to Arc, Arbitrum, OP Mainnet, Polygon, Avalanche, Unichain, Linea, World Chain, Sonic, Monad, Sei, Ink, HyperEVM, XDC, Plume or Codex, and Arc to Base; pick one with ?to=<chain>.

https://api.liquidagent.ai/v1/bridge/balances/%7Baddress%7D
https://api.liquidagent.ai/v1/bridge/cctp/%7BtxHash%7D
https://api.liquidagent.ai/v1/bridge/earnings/%7Breferrer%7D
https://api.liquidagent.ai/v1/bridge/guide
https://api.liquidagent.ai/v1/bridge/proof
https://api.liquidagent.ai/v1/bridge/quote
https://api.liquidagent.ai/v1/bridge/referrer/%7Bpayer%7D
https://api.liquidagent.ai/v1/bridge/routes
https://api.liquidagent.ai/v1/bridge/status/%7BburnTx%7D
https://api.liquidagent.ai/v1/buy
https://api.liquidagent.ai/v1/create-vault
https://api.liquidagent.ai/v1/gas $0.0300 / call
https://api.liquidagent.ai/v1/gas
https://api.liquidagent.ai/v1/gas/solana
https://api.liquidagent.ai/v1/gas/solana $0.0300 / call

Solana gas sponsorship: post a transaction with the sponsor as fee payer, pay the quoted USDC, get it back co-signed. This is the floor price; a real transaction gets its exact quote.

https://api.liquidagent.ai/v1/guide
https://api.liquidagent.ai/v1/polymarket/btc-15m $0.0040 / call

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://api.liquidagent.ai/v1/bridge  # expect HTTP 402 Payment Required (about $0.001/call)
/.well-known/x402.json
https://api.liquidagent.ai/.well-known/x402

Listed in

Directories this entry was found in.

x402scan since 2026-06-10 a2a since 2026-09-01 pay-skills-pr since 2026-09-30