Tax · x402 · early usage

Funding rates per venue for one crypto perpetual, or the whole cross-venue set in one call

by api.usenami.io · discovered, not yet claimed by its owner · updated 2026-10-07

30d calls12

30d payers4

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Funding rates per venue for one crypto perpetual, or the whole cross-venue set in one call. Major CEX and DEX venues — Binance, Bybit, OKX, Bitget, Gate.io, KuCoin, Hyperliquid, Paradex, Orderly, Lighter and more. Each row carries the venue's rate, its funding interval and the 8h-equivalent rate (venues quote on 1h/4h/8h, so raw rates are not comparable), plus canonical_id, asset_class and mark_price, so a ticker naming two unrelated assets is visible, not silently mixed.

Tags: funding · perpetual · trading · multi-venue · market-data · bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-10-07

Input example from Bazaar metadata

{
  "include_uncomparable": {
    "description": "Default false. False returns only rows that pass canonical-identity and cross-venue dispersion checks. True adds back the rows those checks reject — useful if you run your own filtering, misleading if you don't: one ticker can name two unrelated assets (SPX is both the S&P index and a meme coin). The response echoes `comparable_only` so you always know which slice you got.",
    "required": false,
    "type": "boolean"
  },
  "limit": {
    "description": "Rows per page. Default 100, max 1000. Unfiltered the set is ~9,000 rows, so paging is how you avoid buying all of it into your context.",
    "maximum": 1000,
    "minimum": 1,
    "required": false,
    "type": "integer"
  },
  "offset": {
    "description": "Row offset for the next page. Default 0. The response carries total/limit/offset/has_more, so you know when to stop.",
    "minimum": 0,
    "required": false,
    "type": "integer"
  },
  "symbol": {
    "description": "Filter by symbol (e.g. BTC-PERP). Omit for all.",
    "required": false,
    "type": "string"
  }
}

Output example

{
  "comparable_only": true,
  "has_more": true,
  "limit": 100,
  "offset": 0,
  "rates": [
    {
      "asset_class": "crypto",
      "canonical_id": "btc-crypto",
      "funding_interval_hours": 8,
      "mark_price": 64421.5,
      "open_interest": 987654,
      "rate": 0.0001,
      "rate_8h": 0.0001,
      "source_id": 29,
      "symbol": "BTC",
      "updated_at": "2026-05-17T19:58:12Z",
      "venue": "binance",
      "volume_24h": 1234567
    },
    {
      "asset_class": "crypto",
      "canonical_id": "btc-crypto",
      "funding_interval_hours": 1,
      "mark_price": 64418,
      "open_interest": 321098,
      "rate": 0.0000125,
      "rate_8h": 0.0001,
      "source_id": 1,
      "symbol": "BTC",
      "updated_at": "2026-05-17T19:58:44Z",
      "venue": "hyperliquid",
      "volume_24h": 456789
    }
  ],
  "symbol": "BTC-PERP",
  "total": 9063
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/40276.json for the price and payment options.
Pay. Call GET https://api.usenami.io/v1/funding/current. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.001 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base
Demand: 12 calls · 4 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.001	0x1538726707212F4dB3EB67cEc0910422A310475c	300s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x1538726707212F4dB3EB67cEc0910422A310475c",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)

{
  "example": {
    "comparable_only": true,
    "has_more": true,
    "limit": 100,
    "offset": 0,
    "rates": [
      {
        "asset_class": "crypto",
        "canonical_id": "btc-crypto",
        "funding_interval_hours": 8,
        "mark_price": 64421.5,
        "open_interest": 987654,
        "rate": 0.0001,
        "rate_8h": 0.0001,
        "source_id": 29,
        "symbol": "BTC",
        "updated_at": "2026-05-17T19:58:12Z",
        "venue": "binance",
        "volume_24h": 1234567
      },
      {
        "asset_class": "crypto",
        "canonical_id": "btc-crypto",
        "funding_interval_hours": 1,
        "mark_price": 64418,
        "open_interest": 321098,
        "rate": 0.0000125,
        "rate_8h": 0.0001,
        "source_id": 1,
        "symbol": "BTC",
        "updated_at": "2026-05-17T19:58:44Z",
        "venue": "hyperliquid",
        "volume_24h": 456789
      }
    ],
    "symbol": "BTC-PERP",
    "total": 9063
  },
  "type": "json"
}

Example shape — generated from the schema, not a captured live response

{
  "comparable_only": true,
  "has_more": true,
  "limit": 100,
  "offset": 0,
  "rates": [
    {
      "asset_class": "crypto",
      "canonical_id": "btc-crypto",
      "funding_interval_hours": 8,
      "mark_price": 64421.5,
      "open_interest": 987654,
      "rate": 0.0001,
      "rate_8h": 0.0001,
      "source_id": 29,
      "symbol": "BTC",
      "updated_at": "2026-05-17T19:58:12Z",
      "venue": "binance",
      "volume_24h": 1234567
    },
    {
      "asset_class": "crypto",
      "canonical_id": "btc-crypto",
      "funding_interval_hours": 1,
      "mark_price": 64418,
      "open_interest": 321098,
      "rate": 0.0000125,
      "rate_8h": 0.0001,
      "source_id": 1,
      "symbol": "BTC",
      "updated_at": "2026-05-17T19:58:44Z",
      "venue": "hyperliquid",
      "volume_24h": 456789
    }
  ],
  "symbol": "BTC-PERP",
  "total": 9063
}

Examples

curl

curl "https://api.usenami.io/v1/funding/current"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.usenami.io/v1/funding/current");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.usenami.io/v1/funding/current")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.usenami.io
Endpoint: https://api.usenami.io/v1/funding/current
Machine-readable: /resources/40276.json