85
💰 Paid API
api.onesource.io
api.onesource.io
· api.onesource.io
NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)
🛡
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Verify the domain
api.onesource.io via a single DNS TXT record to add the
verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
🔔
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Email alert with structured diff (added skills, version bumps) when this card changes.
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Trust score
19/100
grade F · 9 criteria
Uptime
accumulating
1/5 probes
Revenue · 30d
$0.00
wallet active · no inflow
Usage · 7d
0
no recent activity
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 19/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾
click to collapse breakdown ▴
F
Conformance score: 19/100
F-grade: card is reachable but fails most operational signals.
pass
Valid AgentCard
10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
info
Live JSON-RPC
0/25
Live probe hasn't run yet.
fail
Protocol version
0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info
JWS signature
0/10
Card is unsigned (most published agents are).
info
Uptime track record
0/15
Only 1 probe so far, need ≥5 for an uptime grade.
fail
Skill declaration
0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial
Verified Identity
5/10
Provider declared: api.onesource.io (https://api.onesource.io). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass
Freshness + modern flags
4/5
seen in upstream source within 0d
info
Security declaration
0/5
No securitySchemes declared (common for open agents, not penalised).
⚠ Card drift detected. This agent's
agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 calls Public aggregate · no PII recordedNo calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.
Uptime
100.0%
1 probes
Response
0ms
last probe
Skills
0
declared
Streaming
—
SSE-capable
Endpoints
Pricing
x402 on Base
USDC
From $0.0010 per call
| Endpoint | Price | Currency |
|---|---|---|
https://api.onesource.io/api/chain/allowance
|
0.003 | USDC |
https://api.onesource.io/api/chain/block-number
|
0.001 | USDC |
https://api.onesource.io/api/chain/block/:number
|
0.003 | USDC |
https://api.onesource.io/api/chain/call
|
0.005 | USDC |
https://api.onesource.io/api/chain/chain-id
|
0.001 | USDC |
https://api.onesource.io/api/chain/code/:address
|
0.003 | USDC |
https://api.onesource.io/api/chain/contract/:address
|
0.005 | USDC |
https://api.onesource.io/api/chain/ens/:input
|
0.005 | USDC |
https://api.onesource.io/api/chain/erc1155-balance
|
0.003 | USDC |
https://api.onesource.io/api/chain/erc20-balance
|
0.003 | USDC |
https://api.onesource.io/api/chain/erc20-transfers
|
0.005 | USDC |
https://api.onesource.io/api/chain/erc721-tokens
|
0.008 | USDC |
https://api.onesource.io/api/chain/estimate-gas
|
0.004 | USDC |
https://api.onesource.io/api/chain/events
|
0.005 | USDC |
https://api.onesource.io/api/chain/live-balance
|
0.003 | USDC |
https://api.onesource.io/api/chain/network-info
|
0.001 | USDC |
https://api.onesource.io/api/chain/nft-metadata
|
0.008 | USDC |
https://api.onesource.io/api/chain/nft-owner
|
0.003 | USDC |
https://api.onesource.io/api/chain/nonce/:address
|
0.003 | USDC |
https://api.onesource.io/api/chain/pending
|
0.01 | USDC |
https://api.onesource.io/api/chain/proxy/:address
|
0.005 | USDC |
https://api.onesource.io/api/chain/receipt/:hash
|
0.005 | USDC |
https://api.onesource.io/api/chain/storage
|
0.005 | USDC |
https://api.onesource.io/api/chain/total-supply
|
0.003 | USDC |
https://api.onesource.io/api/chain/tx/:hash
|
0.008 | USDC |
Try it ↗
Opens the operator's playground / docs in a new tab.
Settlement wallet:
0x52e29e0d2aa49bfbfc548c0a9f2196f4aa51f3ea · basescan ↗
| Agent card | https://api.onesource.io |
| Provider | https://api.onesource.io |
| Docs | https://api.onesource.io |
Discovered via
agentic_market
Health · last 0 probes
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Audit-grade evidence bundle
JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against
our JWKS. See the methodology.
Raw agent card JSON
{
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"name": "api.onesource.io",
"description": "NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)",
"domain": "api.onesource.io",
"provider": "api.onesource.io",
"providerUrl": "",
"category": "",
"networks": [
"Base"
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"enriched": false,
"endpoints": [
{
"url": "https://api.onesource.io/api/chain/allowance",
"description": "ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet",
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"currency": "USDC",
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{
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"type": "string",
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"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "spender",
"type": "string",
"description": "",
"example": "0x6b175474e89094c44da98b954eedeac495271d0f",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "token",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
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},
{
"url": "https://api.onesource.io/api/chain/block-number",
"description": "Latest Ethereum block height - current chain tip via eth_blockNumber",
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"amount": "0.001",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
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"providerName": "",
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"serviceName": "",
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"quality": {
"l30DaysTotalCalls": "372",
"l30DaysUniquePayers": "336"
}
},
{
"url": "https://api.onesource.io/api/chain/block/:number",
"description": "Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
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},
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{
"group": "query",
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"type": "string",
"description": "",
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"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "number",
"type": "string",
"description": "",
"example": "latest",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "number",
"type": "string",
"description": "",
"example": "latest",
"enumValues": [],
"default": null,
"required": false
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"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "324",
"l30DaysUniquePayers": "313"
}
},
{
"url": "https://api.onesource.io/api/chain/call",
"description": "Simulate a read-only Ethereum contract call via eth_call - no transaction sent",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "data",
"type": "string",
"description": "",
"example": "0x0",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "to",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "318",
"l30DaysUniquePayers": "311"
}
},
{
"url": "https://api.onesource.io/api/chain/chain-id",
"description": "Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on",
"pricing": {
"amount": "0.001",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
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"enumValues": [],
"default": null,
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},
{
"group": "body",
"name": "network",
"type": "string",
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"enumValues": [],
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"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "315",
"l30DaysUniquePayers": "304"
}
},
{
"url": "https://api.onesource.io/api/chain/code/:address",
"description": "Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
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"group": "query",
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"enumValues": [],
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{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
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"default": null,
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},
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
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"enumValues": [],
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},
{
"group": "body",
"name": "network",
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"enumValues": [],
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],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "344",
"l30DaysUniquePayers": "338"
}
},
{
"url": "https://api.onesource.io/api/chain/contract/:address",
"description": "Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "address",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
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},
{
"group": "query",
"name": "network",
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"description": "",
"example": "ethereum",
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},
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
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},
{
"group": "body",
"name": "network",
"type": "string",
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}
],
"serviceName": "",
"tags": [],
"quality": {
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"l30DaysUniquePayers": "331"
}
},
{
"url": "https://api.onesource.io/api/chain/ens/:input",
"description": "ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "input",
"type": "string",
"description": "",
"example": "vitalik.eth",
"enumValues": [],
"default": null,
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},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
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},
{
"group": "body",
"name": "input",
"type": "string",
"description": "",
"example": "vitalik.eth",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "418",
"l30DaysUniquePayers": "346"
}
},
{
"url": "https://api.onesource.io/api/chain/erc1155-balance",
"description": "ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "account",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
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},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "token_id",
"type": "string",
"description": "",
"example": "1",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "account",
"type": "string",
"description": "",
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{
"group": "body",
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},
{
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"name": "network",
"type": "string",
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"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "token_id",
"type": "string",
"description": "",
"example": "1",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "301",
"l30DaysUniquePayers": "298"
}
},
{
"url": "https://api.onesource.io/api/chain/erc20-balance",
"description": "ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "account",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "token",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "account",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "token",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "298",
"l30DaysUniquePayers": "295"
}
},
{
"url": "https://api.onesource.io/api/chain/erc20-transfers",
"description": "ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "token",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "wallet",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "token",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "wallet",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "293",
"l30DaysUniquePayers": "291"
}
},
{
"url": "https://api.onesource.io/api/chain/erc721-tokens",
"description": "List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)",
"pricing": {
"amount": "0.008",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "owner",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "contract",
"type": "string",
"description": "",
"example": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "owner",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "285",
"l30DaysUniquePayers": "281"
}
},
{
"url": "https://api.onesource.io/api/chain/estimate-gas",
"description": "Estimate the gas a transaction will consume via eth_estimateGas before signing it",
"pricing": {
"amount": "0.004",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "data",
"type": "string",
"description": "",
"example": "0x0",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "to",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "334",
"l30DaysUniquePayers": "333"
}
},
{
"url": "https://api.onesource.io/api/chain/events",
"description": "Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "296",
"l30DaysUniquePayers": "294"
}
},
{
"url": "https://api.onesource.io/api/chain/live-balance",
"description": "Live wallet balance - native ETH plus any ERC20 tokens in one call via eth_getBalance and balanceOf on OneSource Ethereum RPC",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "address",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "286",
"l30DaysUniquePayers": "282"
}
},
{
"url": "https://api.onesource.io/api/chain/network-info",
"description": "Ethereum network info - chain ID, block height, and gas price in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice)",
"pricing": {
"amount": "0.001",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "325",
"l30DaysUniquePayers": "317"
}
},
{
"url": "https://api.onesource.io/api/chain/nft-metadata",
"description": "NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)",
"pricing": {
"amount": "0.008",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "token_id",
"type": "string",
"description": "",
"example": "1",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "contract",
"type": "string",
"description": "",
"example": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "token_id",
"type": "string",
"description": "",
"example": "1",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "290",
"l30DaysUniquePayers": "287"
}
},
{
"url": "https://api.onesource.io/api/chain/nft-owner",
"description": "Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "token_id",
"type": "string",
"description": "",
"example": "1",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "contract",
"type": "string",
"description": "",
"example": "0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "token_id",
"type": "string",
"description": "",
"example": "1",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "324",
"l30DaysUniquePayers": "320"
}
},
{
"url": "https://api.onesource.io/api/chain/nonce/:address",
"description": "Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "address",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
"example": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "331",
"l30DaysUniquePayers": "324"
}
},
{
"url": "https://api.onesource.io/api/chain/pending",
"description": "Pending Ethereum block - mempool transactions not yet mined, via eth_getBlockByNumber(\"pending\")",
"pricing": {
"amount": "0.01",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "308",
"l30DaysUniquePayers": "304"
}
},
{
"url": "https://api.onesource.io/api/chain/proxy/:address",
"description": "Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "address",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "306",
"l30DaysUniquePayers": "293"
}
},
{
"url": "https://api.onesource.io/api/chain/receipt/:hash",
"description": "Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "hash",
"type": "string",
"description": "",
"example": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "hash",
"type": "string",
"description": "",
"example": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "353",
"l30DaysUniquePayers": "337"
}
},
{
"url": "https://api.onesource.io/api/chain/storage",
"description": "Read a raw storage slot from any Ethereum contract via eth_getStorageAt",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "slot",
"type": "string",
"description": "",
"example": "0x0",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "network",
"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "slot",
"type": "string",
"description": "",
"example": "0x0",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
"l30DaysTotalCalls": "315",
"l30DaysUniquePayers": "312"
}
},
{
"url": "https://api.onesource.io/api/chain/total-supply",
"description": "Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"enumValues": [],
"default": null,
"required": false
},
{
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"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "contract",
"type": "string",
"description": "",
"example": "0xdac17f958d2ee523a2206206994597c13d831ec7",
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"default": null,
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},
{
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"description": "",
"example": "ethereum",
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}
],
"serviceName": "",
"tags": [],
"quality": {
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}
},
{
"url": "https://api.onesource.io/api/chain/tx/:hash",
"description": "Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block",
"pricing": {
"amount": "0.008",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
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"type": "string",
"description": "",
"example": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"enumValues": [],
"default": null,
"required": false
},
{
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"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "hash",
"type": "string",
"description": "",
"example": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
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"type": "string",
"description": "",
"example": "ethereum",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "",
"tags": [],
"quality": {
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"l30DaysUniquePayers": "359"
}
}
],
"integrationType": "",
"isNew": false,
"priceSummary": {
"minAmount": "0.001",
"maxAmount": "0.01",
"avgCostPerTransaction": "0.00432",
"avgCostBasis": "exact",
"currency": "USDC"
},
"serviceName": "",
"tags": [],
"iconUrl": ""
}
}