Skip to content
clusters: prooflayer · edgemarket · edgefinance · synthforge · mediakit · wordmint · webprobe · locale · comppoint · rollforge · bestiary · statline · matchpoint · retail · agentops · browserworkflow · modelrouter · compose
$ man nft-flip

/nft-flip

PRICE / CALL
$0.05
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
edgemarket
CATEGORY
uncategorized
STATUS
live
NAME
nft-flip shows whether an nft collection is being flipped or held by sampling holders and recent transfers on ethereum, base, ink, or robinhood chain
synonym alias of holder-hands — reuses the canonical handler.
SYNOPSIS
POST https://x402.agentutility.ai/nft-flip
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }
↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.
DESCRIPTION

Shows whether an NFT collection is being flipped or held by sampling holders and recent transfers on Ethereum, Base, Ink, or Robinhood Chain. Returns flip rate, diamond-hands verdict, whale concentration, mint-versus-secondary mix, transfer timing, and wash-trade signals. Use it as an NFT flip API, holder quality check, wash activity screen, or collection churn report.

INPUTrequest schema
propertytypedescriptionreq?
contract_addressstring0x-prefixed ERC-721 or ERC-1155 collection contract address.required
chainstringBlockscout-backed EVM chain. Default 'base'.
enum: ethereum · base · ink · robinhood
optional
OUTPUTresponse shape
fieldtypedescription
chainstring
collectionobject
concentrationobject
flipobject
wash_signalsobject
verdictstring
verdict_reasonsarray
sampleobject
disclaimerstring
EXAMPLEStwo ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/nft-flip \
  -H 'Content-Type: application/json' \
  -d '{ }'
first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.
EXAMPLE 2 · mcp
# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the nft-flip tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
tags
edge-marketnftflipnft-flip
methods
POST
cluster
edgemarket
price
$0.05 USDC per call
ADJACENTother endpoints in edgemarket
endpointdescriptionprice
holder-handsSampled NFT holder analysis for ERC-721 and ERC-1155 collections on Ethereum, Base, Ink, and Robinhood Chain.$0.05
honeypot-checkHoneypot.is buy/sell simulation for any Base or Ethereum ERC-20.$0.05
mint-momentumTracks NFT mint momentum on Robinhood Chain and Ink through a bounded scan or one-collection score.$0.05
mint-scoutRobinhood Chain and Ink NFT mint scanner with two bounded modes: sample holder-sorted ERC-721 listings filtered from 3 through max_holder…$0.05
token-honeypotDetects whether an ERC-20 token is a honeypot by simulating a buy + sell via honeypot.is.$0.05
token-honeypot-apiChecks whether a token is a honeypot, testing sellability, buy tax, sell tax, proxy risk, owner risk, and token-trading warnings.$0.05
token-honeypot-checkChecks whether an ERC-20 token is a honeypot by simulating buy and sell behavior through honeypot.is.$0.05
wallet-pnlComputes wallet token P&L with FIFO cost basis for any (wallet, ERC-20, chain) triple.$0.05
SEE ALSO
agentutility · edgemarket · x402 · mcp · llms.txt · registry.json · bazaar.x402.org