API Mercado docs
API Mercado is an API marketplace. Providers publish HTTP APIs priced per request; consumer organizations prepay a balance and call every API through one gateway with their Key. The catalog is at apimercado.com.
API Mercado is in beta: features and fees may change. The Changelog lists every Release.
Call APIs
Section titled “Call APIs”- Authenticate a request: send your Key, or call keyless operations.
- What each call costs: prices, holds and balances.
- Spend caps: limit what one Key can spend.
- Error codes: every gateway error and how to fix it.
Sell APIs
Section titled “Sell APIs”- Publish an API: from the OpenAPI spec to the go-live checklist.
- Pricing: set a price and a cap per operation, in your spec.
- Deferred settlement: charge after a long-running job finishes.
- Provider API: refresh your spec from CI.
Build with agents
Section titled “Build with agents”- For agents: the reference an AI agent reads first.
- MCP server: search and read the catalog from your agent.
- llms.txt: the site map as markdown.