CoinGecko And GeckoTerminal Skill

uxc

uxc

Prerequisites

• uxc

  is installed and available in

  PATH

  .
• Network access to

  https://api.coingecko.com/api/v3

  .
• Access to the curated OpenAPI schema URL:

  • https://raw.githubusercontent.com/holon-run/uxc/main/skills/coingecko-openapi-skill/references/coingecko-market.openapi.json

• A CoinGecko Demo API key.

Scope

• API liveness checks
• spot price lookup
• asset ID discovery
• market screener reads
• trending reads
• GeckoTerminal network discovery
• onchain token price lookup
• trending pool reads

• paid or enterprise-only method families beyond the selected v1 scope
• historical chart or OHLC families
• portfolio, NFT, or onchain trade execution
• the full CoinGecko or GeckoTerminal API

Authentication

x-cg-demo-api-key

api.coingecko.com/api/v3

uxc auth credential set coingecko-demo \
  --auth-type api_key \
  --api-key-header x-cg-demo-api-key \
  --secret-env COINGECKO_DEMO_API_KEY

uxc auth binding add \
  --id coingecko-demo \
  --host api.coingecko.com \
  --path-prefix /api/v3 \
  --scheme https \
  --credential coingecko-demo \
  --priority 100

uxc auth binding match https://api.coingecko.com/api/v3

Pro Host Override

uxc auth credential set coingecko-pro \
  --auth-type api_key \
  --api-key-header x-cg-pro-api-key \
  --secret-env COINGECKO_PRO_API_KEY

uxc auth binding add \
  --id coingecko-pro \
  --host pro-api.coingecko.com \
  --path-prefix /api/v3 \
  --scheme https \
  --credential coingecko-pro \
  --priority 100

uxc link coingecko-pro-openapi-cli https://pro-api.coingecko.com/api/v3 \
  --schema-url https://raw.githubusercontent.com/holon-run/uxc/main/skills/coingecko-openapi-skill/references/coingecko-market.openapi.json

Core Workflow

1. Use the fixed link command by default:

   • command -v coingecko-openapi-cli

   • If missing, create it:

     uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url https://raw.githubusercontent.com/holon-run/uxc/main/skills/coingecko-openapi-skill/references/coingecko-market.openapi.json

   • coingecko-openapi-cli -h

2. Inspect operation schema first:

   • coingecko-openapi-cli get:/simple/price -h

   • coingecko-openapi-cli get:/coins/markets -h

   • coingecko-openapi-cli get:/onchain/simple/networks/{network}/token_price/{addresses} -h

3. Prefer narrow read validation before broader reads:

   • coingecko-openapi-cli get:/ping

   • coingecko-openapi-cli get:/coins/list include_platform=false

   • coingecko-openapi-cli get:/onchain/networks

4. Execute with key/value parameters:

   • coingecko-openapi-cli get:/simple/price ids=bitcoin,ethereum vs_currencies=usd

   • coingecko-openapi-cli get:/coins/markets vs_currency=usd ids=bitcoin,ethereum order=market_cap_desc per_page=10 page=1

   • coingecko-openapi-cli get:/onchain/simple/networks/{network}/token_price/{addresses} network=eth addresses=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48

Operation Groups

Market Data

• get:/ping

• get:/simple/price

• get:/coins/list

• get:/coins/markets

• get:/search/trending

GeckoTerminal Onchain Data

• get:/onchain/networks

• get:/onchain/simple/networks/{network}/token_price/{addresses}

• get:/onchain/networks/trending_pools

Guardrails

• Keep automation on the JSON output envelope; do not use

  --text

  .
• Parse stable fields first:

  ok

  ,

  kind

  ,

  protocol

  ,

  data

  ,

  error

  .
• Treat this v1 skill as read-only. Do not imply wallet, trading, or portfolio mutation support.
• Demo and Pro hosts use different API-key headers. If the default Demo credential fails against the Pro host, create a separate Pro credential rather than reusing the Demo header name.
• The Pro host needs its own auth binding on

  pro-api.coingecko.com/api/v3

  ; creating only a credential is not enough for linked calls to send

  x-cg-pro-api-key

  .
• CoinGecko public and Demo limits are tighter than Pro. Keep default examples narrow and avoid large paginated loops without explicit user intent.
• The GeckoTerminal endpoints in this schema share the same API root and auth flow as the rest of the curated CoinGecko host contract.

• coingecko-openapi-cli <operation> ...

  is equivalent to

  uxc https://api.coingecko.com/api/v3 --schema-url <coingecko_openapi_schema> <operation> ...

  .

References

• Usage patterns:

  references/usage-patterns.md

• Curated OpenAPI schema:

  references/coingecko-market.openapi.json

• CoinGecko API docs: https://docs.coingecko.com/reference/endpoint-overview
• Authentication docs: https://docs.coingecko.com/reference/authentication