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One managed gateway · two sides

Managed API Gateway

Launch, sell, and consume APIs, all in one place.

Browse APIsSell your API

# one Key, one base URL, any enabled API

$ curl -s https://eu-north-1.apimercado.com/v1/acme/fx-rates/quote

-H 'X-API-Key: mk_live_…'

200 OK · 14ms

{ "base": "EUR", "rate": 1.0921, "asof": "2026-06-09" }

OpenAPI-first · Gateway-enforced limits · Providers keep their full Price

Recently updated APIs

Per-request pricing, docs, and gateway-protected access on every listing.

View all
  • Forex API$0.00005

    Mid-market prices and finalized daily closes & official daily fixings published by central banks.

    Capital EnestiFinance★ 5.0 (1)99.9% uptime5k+ reqs/30d · ~174ms

More APIs are being reviewed for the catalog.

Finance

For developers

Use an API in minutes.

  1. 1

    Choose an API

    Browse listings with use cases, per-request pricing, documentation, uptime signals, and runnable examples.

  2. 2

    Enable it and top up

    Every organization gets a $1.00 Free buffer each Month. Top-ups start at $10.00 and stay valid for 18 months.

  3. 3

    Call through the gateway

    Use an org Key and a stable gateway URL instead of juggling credentials across vendors.

For API owners

Sell your API without building the commercial layer.

Bring your OpenAPI spec. API Mercado handles hosted docs, org Keys, rate limits, usage tracking, and prepaid billing.

See how selling works
  • ·Import an OpenAPI spec
  • ·Set a per-request Price
  • ·Enforce rate limits at the gateway
  • ·Earn on every paid request

Closed beta. Listings are reviewed before publication.