mexc-openapi-skill

MEXC Spot API Skill

Use this skill to run MEXC Spot REST operations through uxc + OpenAPI.

Reuse the uxc skill for shared execution, auth, and error-handling guidance.

Prerequisites

• uxc is installed and available in PATH.
• Network access to https://api.mexc.com.
• Access to the curated OpenAPI schema URL:
  • https://raw.githubusercontent.com/holon-run/uxc/main/skills/mexc-openapi-skill/references/mexc-spot.openapi.json

Scope

This skill covers a curated MEXC Spot REST surface for:

• public market reads
• signed account reads
• signed order create, cancel, and lookup flows

This skill does not cover:

• futures APIs
• broader platform product families

Authentication

Public market endpoints do not require credentials.

Signed Spot endpoints require:

• api_key field for X-MEXC-APIKEY
• secret_key field for HMAC SHA256 query signing

Create one credential:

uxc auth credential set mexc-spot \
  --auth-type api_key \
  --field api_key=env:MEXC_API_KEY \
  --field secret_key=env:MEXC_SECRET_KEY

Add one signer binding:

uxc auth binding add \
  --id mexc-spot \
  --host api.mexc.com \
  --path-prefix /api/v3 \
  --scheme https \
  --credential mexc-spot \
  --signer-json '{"kind":"hmac_query_v1","algorithm":"hmac_sha256","signing_field":"secret_key","key_field":"api_key","key_placement":"header","key_name":"X-MEXC-APIKEY","signature_param":"signature","signature_encoding":"hex","timestamp_param":"timestamp","timestamp_unit":"milliseconds","canonicalization":{"mode":"preserve_order"}}' \
  --priority 100

Validate the active mapping when auth looks wrong:

uxc auth binding match https://api.mexc.com/api/v3/account

Core Workflow

1. Use the fixed link command by default:
   • command -v mexc-openapi-cli
   • If missing, create it: uxc link mexc-openapi-cli https://api.mexc.com --schema-url https://raw.githubusercontent.com/holon-run/uxc/main/skills/mexc-openapi-skill/references/mexc-spot.openapi.json
   • mexc-openapi-cli -h