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Grey Ridge Signals — x402 Data & Security APIs

https://x402-data-api.sigrunner.workers.dev
● healthy data-social-apis

17 agent-native pay-per-call endpoints: blockchain queries (balance, gas, chain-id, code, receipts, token balances, token security, wallet info), crypto funding rates & prices, DeFi yields, domain enrichment, tech-risk scoring, prediction market data, MCP scanning. $0.001–$0.05 USDC on Base. ([OpenAPI](https://x402-data-api.sigrunner.workers.dev/openapi.json) | [Discovery](https://x402-data-api.sigrunner.workers.dev/.well-known/x402))

Category
data-social-apis
Chains
—
Price
—

Quality grade

How grading works
B 79.9 / 100
Availability 40.0 / 40
Endpoint responded (HTTP 200)
Payability 20.0 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 19.9 / 40
16 distinct payers, 500 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.

Paid endpoints

16 resource(s) advertised by this origin.

https://x402-data-api.sigrunner.workers.dev/chain/balance
https://x402-data-api.sigrunner.workers.dev/chain/block-number
https://x402-data-api.sigrunner.workers.dev/chain/code
https://x402-data-api.sigrunner.workers.dev/chain/gas-price
https://x402-data-api.sigrunner.workers.dev/chain/receipt
https://x402-data-api.sigrunner.workers.dev/chain/token-balance
https://x402-data-api.sigrunner.workers.dev/chain/token-security
https://x402-data-api.sigrunner.workers.dev/chain/tx
https://x402-data-api.sigrunner.workers.dev/chain/wallet
https://x402-data-api.sigrunner.workers.dev/crypto/funding
https://x402-data-api.sigrunner.workers.dev/crypto/prices
https://x402-data-api.sigrunner.workers.dev/defi/yields
https://x402-data-api.sigrunner.workers.dev/enrich/domain
https://x402-data-api.sigrunner.workers.dev/enrich/tech-risk
https://x402-data-api.sigrunner.workers.dev/pm/markets
https://x402-data-api.sigrunner.workers.dev/scan/mcp

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://x402-data-api.sigrunner.workers.dev/chain/balance
/.well-known/x402.json
https://x402-data-api.sigrunner.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

awesome-x402 x402scan