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Convexia delivers highly competitive pricing for compliant cross-chain stablecoin swaps, optimized for large-volume transactions. Pricing is dynamically determined based on several factors, including:
  • Source chain
  • Destination chain
  • Asset pair
  • Trade size
  • Current market conditions and time of day
Typical all-in pricing ranges between 3–10 basis points (bps), positioning Convexia as one of the most cost-effective solutions for institutional-scale stablecoin movement. For clients with significant and recurring volume, additional pricing benefits are available. Teams processing $50M+ in monthly volume may qualify for reduced fees and custom rate structures. To discuss volume discounts or obtain a tailored pricing estimate, contact the Convexia team.

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Programmatic Pricing Data:

GET /v1/markets/spreads

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Purpose

Fetch real-time indicative spreads (in bps) for supported cross-chain stablecoin routes.

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Authentication

Required:
  • Authorization: Bearer <api_key>

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Query Parameters

ParameterTypeRequiredDescription
from_chainstringoptionalFilter results by source chain (e.g., solana, base, ethereum, tron).
to_chainstringoptionalFilter results by destination chain.
from_assetstringoptionalFilter by source asset (e.g., USDC, USDT).
to_assetstringoptionalFilter by destination asset.
amountstringoptionalAmount used to compute the spread tier (e.g., 1000000). If omitted, returns default size tier.
limitintegeroptionalMax number of routes returned (default 50, max 200).

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Response (200)

{
  "as_of": "2026-01-16T21:45:12Z",
  "mode": "indicative",
  "amount_context": "1000000",
  "routes": [
    {
      "route_id": "solana:USDC->tron:USDT",
      "from_chain": "solana",
      "to_chain": "tron",
      "from_asset": "USDC",
      "to_asset": "USDT",
      "spread_bps": "4.7",
      "estimated_fee_bps": "0.8",
      "estimated_all_in_bps": "5.5",
      "min_amount": "25000",
      "max_amount": "25000000",
      "price_ttl_ms": 15000,
    },
    {
      "route_id": "base:USDC->ethereum:USDC",
      "from_chain": "base",
      "to_chain": "ethereum",
      "from_asset": "USDC",
      "to_asset": "USDC",
      "spread_bps": "3.2",
      "estimated_fee_bps": "0.5",
      "estimated_all_in_bps": "3.7",
      "min_amount": "50000",
      "max_amount": "50000000",
      "price_ttl_ms": 15000,
    }
  ]
}

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Field Notes

  • spread_bps: Indicative market spread for the route at the requested size tier.
  • estimated_fee_bps: Convexia fee component (may vary by volume tier).
  • estimated_all_in_bps: spread_bps + estimated_fee_bps.
  • price_ttl_ms: How long this spread should be treated as “fresh” before re-fetching.
  • mode: Always indicative for this endpoint.

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Errors

400 invalid parameters 
{ "error": { "code": "invalid_request", "message": "Unsupported chain: foo" } }
401 missing/invalid API key 
{ "error": { "code": "unauthorized", "message": "Invalid API key" } }
429 rate limit 
{ "error": { "code": "rate_limited", "message": "Too many requests" } }