Tanod chainpeek
chainpeek (Tanod) live token approvals of a wallet: ERC-20 and Permit2 allowances with risk flags and unsigned revoke transactions, on Base or Ethereum. Use when an agent must list and revoke its wallet's live token approvals, on a schedule or after a risky signature.
Offering
- Provider
- tanod.dev
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Blockchain And Crypto
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://tanod.dev/v1/chain/approvals- MIME type
- application/json
- First seen
- 2026-10-16T01:51:02.144Z
- Last seen
- Tags
- token-approvals, permit2, revoke-approval, ERC20, chainpeek, chain, approvals, ENS, calldata
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.005 USDC
Atomic price: 5000 · Network: eip155:137 · Asset: USDC · Scheme: exact - Payment option 3
- 0.005 USDC
Atomic price: 5000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact - Payment option 4
- 0.005 USDC
Atomic price: 5000000000000000 · Network: eip155:56 · Asset: USDC · Scheme: exact - Payment option 5
- 0.005 USDC
Atomic price: 5000 · Network: eip155:42161 · Asset: USDC · Scheme: exact - Payment option 6
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 7
- 0.005 USDC
Atomic price: 5000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
},
{
"scheme": "exact",
"network": "eip155:137",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "5000",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "5000",
"payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus"
},
{
"scheme": "exact",
"network": "eip155:56",
"asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
"amount": "5000000000000000",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
},
{
"scheme": "exact",
"network": "eip155:42161",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "5000",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
},
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
},
{
"scheme": "exact",
"network": "eip155:137",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "5000",
"payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
}
]Observed health
- Status
- Healthy
- Latest latency
- 469 ms
- Average latency
- 919 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 10 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"POST"
]
},
"bodyType": {
"type": "string",
"enum": [
"json",
"form-data",
"text"
]
},
"body": {
"additionalProperties": false,
"properties": {
"chain": {
"description": "base or ethereum (the chains with built-in USDC and USDT here).",
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"wallet": {
"description": "The wallet whose approvals are audited (0x + 40 hex).",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"tokens": {
"anyOf": [
{
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 50,
"minItems": 1,
"type": "array"
},
{
"type": "null"
}
],
"default": null,
"description": "Up to 50 token contracts to audit. Default: USDC, USDT and up to 18 tokens the wallet has sent (from its transfer history)."
},
"spenders": {
"anyOf": [
{
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 50,
"minItems": 1,
"type": "array"
},
{
"type": "null"
}
],
"default": null,
"description": "Up to 50 spender addresses whose ERC-20 and Permit2 allowances are read directly on every audited token, however old (tokens x spenders at most 200). The full-coverage path for spenders you know."
},
"lookback_blocks": {
"default": 6000,
"description": "Latest blocks scanned for approval events (0-6,000; default 6,000, about 3.3 hours on Base and 20 hours on Ethereum). 0 scans nothing and checks `spenders` and Permit2 only.",
"maximum": 6000,
"minimum": 0,
"type": "integer"
},
"stale_days": {
"default": 90,
"description": "An allowance is stale when the spender pulled nothing from the wallet in this many days (1-3,650; default 90).",
"maximum": 3650,
"minimum": 1,
"type": "integer"
}
},
"required": [
"chain",
"wallet"
],
"type": "object"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"chain": {
"description": "base or ethereum (the chains with built-in USDC and USDT here).",
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"lookback_blocks": {
"default": 6000,
"description": "Latest blocks scanned for approval events (0-6,000; default 6,000, about 3.3 hours on Base and 20 hours on Ethereum). 0 scans nothing and checks `spenders` and Permit2 only.",
"maximum": 6000,
"minimum": 0,
"type": "integer"
},
"spenders": {
"anyOf": [
{
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 50,
"minItems": 1,
"type": "array"
},
{
"type": "null"
}
],
"default": null,
"description": "Up to 50 spender addresses whose ERC-20 and Permit2 allowances are read directly on every audited token, however old (tokens x spenders at most 200). The full-coverage path for spenders you know."
},
"stale_days": {
"default": 90,
"description": "An allowance is stale when the spender pulled nothing from the wallet in this many days (1-3,650; default 90).",
"maximum": 3650,
"minimum": 1,
"type": "integer"
},
"tokens": {
"anyOf": [
{
"items": {
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"maxItems": 50,
"minItems": 1,
"type": "array"
},
{
"type": "null"
}
],
"default": null,
"description": "Up to 50 token contracts to audit. Default: USDC, USDT and up to 18 tokens the wallet has sent (from its transfer history)."
},
"wallet": {
"description": "The wallet whose approvals are audited (0x + 40 hex).",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"chain",
"wallet"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"description": "Abridged to fit the header. Full example: the 402 JSON body. Full schema: https://tanod.dev/openapi.json POST /v1/chain/approvals",
"properties": {
"allowances": {
"type": "array"
},
"allowances_total": {
"type": "integer"
},
"block": {
"type": [
"integer",
"null"
]
},
"block_timestamp": {
"type": [
"integer",
"null"
]
},
"chain": {
"type": "string"
},
"checked": {
"type": "object"
},
"history": {
"type": "object"
},
"limits": {
"type": "array"
},
"reasons": {
"type": "array"
},
"risk": {
"type": "string"
},
"rpc_calls": {
"type": "integer"
},
"rules": {
"type": "object"
},
"stale_days": {
"type": "integer"
},
"tokens": {
"type": "array"
},
"wallet": {
"type": "string"
}
},
"required": [
"chain",
"wallet",
"risk",
"reasons",
"allowances",
"allowances_total",
"tokens",
"checked",
"history",
"stale_days",
"rules",
"limits"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}