chainpulse
https://md.fastdb.in/pulse
● healthy
high-volume-production-deployments
Real-time crypto market data API for AI agents: POST /price (aggregated USD spot prices with confidence score, incl. Base ERC-20s by address), POST /gas (live gas + USD transfer cost on Ethereum/Base/Arbitrum/Optimism/Polygon), POST /tvl (DeFi protocol TVL via DefiLlama slugs). $0.001 USDC per call via x402 on Base, no signup, no API key. ([OpenAPI](https://md.fastdb.in/pulse/openapi.json))
Category
high-volume-production-deployments
Chains
—
Price
—
Quality grade
How grading works
B
74.2 / 100
Availability
40.0 / 40
Endpoint responded (HTTP 301)
Payability
16.7 / 20
- ✓ Answers a real HTTP 402 challenge
- ✗ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
Demand
17.5 / 40
11 distinct payers, 241 USDC transfers in the last 30 days
Owner verified
0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 6 h ago.
On-chain activity last read 11 d ago.
Availability and on-chain demand are both re-probed daily; the grade
updates automatically on the next pass.
How to call
cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://md.fastdb.in/pulse/Listed in
Directories this entry was found in.
awesome-x402