OneSource
onesource.io
OneSource unifies blockchain data behind a single agent-native API. Ask in natural language or REST, pay with x402, MPP, or use an API key.
USDCBase
Barker
barker.money
Stablecoin yield index for the agent economy across 500+ DeFi protocols, with free public data and paid agent-callable x402 endpoints.
Crypto payment details
- Payment protocol
- x402
- Networks
- Base, Polygon, Arbitrum, Ethereum, X Layer
- Tokens
- USDC
- Typical price per call
- $0.001 per call (check the provider for current pricing)
- Example paid endpoint
https://mcp.barker.money/barker_market_trend- Listed in
- Coinbase CDP x402 Bazaar
How we verified it
Unpaid GET /barker_market_trend returned HTTP 402 on 2026-10-21 with x402 payment terms: x402 v2, exact, 0.001 USDC on X Layer, Base, Ethereum, Polygon or Arbitrum. Listed in the Coinbase CDP x402 Bazaar discovery API (checked by payTo on 2026-10-21). Price range from the per-route amounts listed there, cross-checked with the live probe. Homepage fetched (HTTP 200). Last checked 2026-10-21.
- https://api.cdp.coinbase.com/platform/v2/x402/discovery/merchant?payTo=0x83f15f5bea445109e255ab82622fbdfecd1e4c9f
- https://barker.money/
The description summarizes the provider's own site. YourAITools is not affiliated with Barker. Listing a tool is not an endorsement: check pricing and terms with the provider before paying.
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