Crest Systems operates a paid market data API focused on current-state cryptocurrency and DeFi metrics. It serves agents that need a lightweight, multi-asset price snapshot, gas cost estimates for Base network transactions, trending asset discovery, or per-chain DeFi TVL breakdowns. It is distinct from full-featured data platforms in that it offers a small, focused set of snapshot endpoints rather than broad historical or streaming coverage.
Copy the skill below, then add it on claude.ai under Skills → Create skill → Upload.
| Resource | Category | Quality | Tier | Txns | Volume |
|---|---|---|---|---|---|
Gas Data API https://data.crestsystems.ai/data/gas | Data | 88 | host level | — | — |
Token Data Lookup https://data.crestsystems.ai/data/token/:id | Data | 25 | host level | — | — |
Paste the prompt below to your coding agent. It runs a real paid test on every route, fixes what scores low, and re-auditions until they pass — the gaps below are already filled in for you.
Make my x402 API at https://data.crestsystems.ai discoverable on x402gle. Read the instructions at https://x402gle.com/agent.md and follow them end to end. Install the OpenDexter CLI, then run `npx @dexterai/opendexter audition https://data.crestsystems.ai --json`. Heads up: 2 routes are scoring below 50 — start there. Read the score and fixInstructions for every route, fix my OpenAPI and endpoints until each route passes, and re-audition until it does. A passing audition lists my API automatically.
New to this? How agent-first onboarding works.
| For | Via | Chain | Amount | Buyer | Tx | Time |
|---|---|---|---|---|---|---|
| Data |
72 |
| host level |
| — |
| — |
Crest Price Feed https://data.crestsystems.ai/data/prices | Data | 28 | host level | — | — |
Crest DeFi Chain Data https://data.crestsystems.ai/data/defi/:chain | DeFi | 88 | host level | — | — |