Zapper API

https://public.zapper.xyz 79% (83/105)

Compliance Checks

✓ All paid ops declare 402 response MUST 10pt

✗ All x-payment-info valid MUST 10pt

✓ Challenge has Cache-Control: no-store MUST 5pt

✗ Challenge digest on POST SHOULD 3pt

✓ Challenge has expires SHOULD 3pt

✗ Challenge has Problem Details SHOULD 2pt

✓ Challenge has required params MUST 5pt

✓ Challenge has WWW-Authenticate MUST 5pt

✓ Challenge returns 402 MUST 10pt

✓ Correct Content-Type MUST 5pt

✓ Has Cache-Control on discovery SHOULD 5pt

✓ Has input schemas SHOULD 5pt

✗ Has llms.txt SHOULD 5pt

✓ Has /openapi.json at root MUST 10pt

✓ Has required top-level fields MUST 10pt

✓ Served over HTTPS MUST 10pt

✗ Uses standard categories SHOULD 2pt

1 issue

POST endpoint challenge missing digest parameter (SHOULD per spec)

Paid Operations (17)

POST /x402/token-price dynamic

Get real-time token price and market cap

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
address	string	Yes	The 0x contract address
chainId	integer	Yes	The Chain ID (e.g. 8453 for Base)
currency	string	No	Currency for price data (default: USD) default: `USD`

POST /x402/search dynamic

Search for ERC20 tokens, NFTs, Users, Apps, or Gas Tokens.

Amount: 0.004500
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.004500 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
categories	array	No	Filter results by category. Use multiple categories for broader results (e.g., ["GAS_TOKEN", "ERC20_TOKEN"] for all token types). Defaults to ERC20_TOKEN only. default: `[ERC20_TOKEN]`
maxResultsPerCategory	integer	No	Limit results per category default: `5`
search	string	Yes	Search query (e.g., "Ape", "eth", "Vitalik"). Searches for token SYMBOLS, NFT collection names, ENS, and BaseNames.

POST /x402/nft-token-metadata dynamic

Get detailed metadata, traits, media, and holder info for a specific NFT

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
chainId	integer	Yes	The Chain ID (e.g. 1 for Mainnet, 8453 for Base)
collectionAddress	string	Yes	The 0x contract address of the collection
tokenId	string	Yes	The specific token ID to fetch metadata for

POST /x402/nft-collection-metadata dynamic

Get NFT collection data including market stats, holders, events, and a sample of NFTs.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
collections	array	Yes	Array of collection inputs containing address and chainId

POST /x402/portfolio-totals dynamic

Get aggregated portfolio totals (Tokens, Apps, NFTs) broken down by network for a single address, or a list of addresses.

Amount: 0.001875
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001875 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
addresses	array	Yes	Array of 0x wallet addresses to aggregate
chainIds	array	No	Optional list of Chain IDs to filter by (e.g. [1, 8453])

POST /x402/token-balances dynamic

Get detailed token balances for a single address, or a list of addresses, optionally filtering by chain.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
addresses	array	Yes	Array of 0x wallet addresses to aggregate
chainIds	array	No	Optional list of Chain IDs to filter by (e.g. [1, 8453])
first	integer	No	Number of tokens to return (max 20) default: `10`

POST /x402/defi-balances dynamic

Get DeFi balances (Liquidity Pools, Yield Farming, Lending, etc.) for a single address, or a list of addresses.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
addresses	array	Yes	Array of 0x wallet addresses to aggregate
chainIds	array	No	Optional list of Chain IDs to filter by
first	integer	No	Number of DeFi positions to return (max 50) default: `10`

POST /x402/nft-balances dynamic

Get individual NFT balances and estimated values for a single address, or a list of addresses.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
addresses	array	Yes	Array of 0x wallet addresses to scan
chainIds	array	No	Optional list of Chain IDs to filter by
first	integer	No	Number of NFTs to return default: `10`
sortBy	string	No	Sort order for results (e.g. "USD_WORTH", "NETWORK", "COLLECTION") default: `USD_WORTH`

POST /x402/historical-token-price dynamic

Get the price of a token at a specific point in time.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
address	string	Yes	The 0x contract address of the token
chainId	integer	Yes	The Chain ID (e.g. 8453 for Base)
currency	string	No	Currency for price data (default: USD) default: `USD`
timestamp	integer	Yes	The unix timestamp (in milliseconds) for the historical lookup

POST /x402/transaction-details dynamic

Get human-readable interpretation, metadata, and balance changes for a specific transaction.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
chainId	integer	Yes	The Chain ID where the transaction occurred
hash	string	Yes	The transaction hash (0x...)

POST /x402/transaction-history dynamic

Get transaction history with interpretations and metadata for a single address, or a list of addresses.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
after	string	No	Cursor for pagination
chainIds	array	No	Optional list of Chain IDs to filter by
first	integer	No	Number of transactions to return default: `10`
perspective	string	No	Transaction perspective filter (e.g. "All", "Signer", "Receiver") default: `All`
subjects	array	Yes	Array of 0x wallet addresses to get transaction history for

POST /x402/token-holders dynamic

Get token holders with balances and identity information for a specific token.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
address	string	Yes	Token contract address (0x...)
after	string	No	Cursor for pagination
chainId	integer	Yes	Chain ID of the network (e.g. 1 for Ethereum, 8453 for Base)
first	number	Yes	Number of holders to return

POST /x402/token-ranking dynamic

Get a ranked list of tokens based on swap activity and velocity of adoption, optionally tailored for a farcaster user.

Amount: 0.004500
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.004500 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
after	string	No	Cursor for pagination (get results after this cursor)
fid	integer	No	Optional Farcaster ID (FID) to personalize ranking
first	integer	No	Number of items to return (pagination limit) default: `10`

POST /x402/nft-ranking dynamic

Get a ranked list of NFT collections based on rading activity and collection popularity, optionally tailored for a farcaster user.

Amount: 0.004500
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.004500 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
after	string	No	Cursor for pagination (get results after this cursor)
fid	integer	No	Optional Farcaster ID (FID) to personalize ranking
first	integer	No	Number of items to return (pagination limit) default: `10`

POST /x402/account-identity dynamic

Get social identity (ENS, Farcaster, Lens, Basenames) for a specific address.

Amount: 0.001125
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.001125 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
address	string	Yes	The 0x wallet address to resolve identity for

POST /x402/general-swap-feed dynamic

Get a real-time feed of swap activity across Farcaster, including token trades, volume, and social context.

Amount: 0.003750
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.003750 pricingMode: fixed protocols: [x402 mpp]

Input Schema

{
  "type": "object"
}

POST /x402/token-activity-feed dynamic

Get a combined activity feed for a specific token, including swaps and top Farcaster casts, personalized for a given user.

Amount: 0.003750
Currency: -
Method: x402, mpp
Intent: -
402 Declared: Yes

Non-standard x-payment-info fields: price: 0.003750 pricingMode: fixed protocols: [x402 mpp]

Input Schema

Field	Type	Required	Description
chainId	integer	Yes	Chain ID of the token (e.g. 8453 for Base)
fid	integer	No	Optional Farcaster ID (FID) to personalize the feed
filters	object	No	Optional filters such as minimumUsdVolume
tokenAddress	string	Yes	Contract address of the token
type	string	No	Feed type (e.g. DEFAULT)

Payment Methods

Methods: tempo (from challenge)
Intents: charge (from challenge)
Currencies (discovery): -
Currency (challenge): USDC.e on Tempo (Tempo)
Multiple Challenges: No

Recipients

0x43a2a720cd0911690c248075f4a29a5e7716f758

Per-endpoint breakdown

POST /x402/nft-collection-metadata: 0x43a2a720cd0911690c248075f4a29a5e7716f758
POST /x402/nft-token-metadata: 0x43a2a720cd0911690c248075f4a29a5e7716f758
POST /x402/portfolio-totals: 0x43a2a720cd0911690c248075f4a29a5e7716f758
POST /x402/search: 0x43a2a720cd0911690c248075f4a29a5e7716f758
POST /x402/token-balances: 0x43a2a720cd0911690c248075f4a29a5e7716f758
POST /x402/token-price: 0x43a2a720cd0911690c248075f4a29a5e7716f758

Security

TLS Version: TLSv1.3
Challenge ID Unique: Yes
Challenge ID Length: 36
Digest Binding: -

Uptime

Discovery: Reachable (218ms)
Challenge: Reachable (362ms)
Last Checked: 2026-04-07T18:37:58Z

Schema Completeness

Paid Operations: 17
With Input Schema: 17
With Description: 17

Documentation

Homepage: -
API Reference: -
llms.txt: -

Discovery

OpenAPI URL: https://public.zapper.xyz/openapi.json
OpenAPI Version: 3.1.0
Service Version: 1.0.0
Document Size: 44603 bytes
Document Hash: e13d67efaabc449d9070144137dcb5a1b60c2bae498e87d2a36fd78bcce32269

Version History (2 snapshots)

Scan snapshots

Date	Grade	Score	Response	Status
2026-04-06	B	79%	245ms	Up
2026-04-07	B	79%	212ms	Up