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SYNTHORA EVM Chain Metadata Service
x402
SYNTHORA EVM Chain Metadata Service is a paid API for AI agents from rpc-network.hergertsynthora.com, paid per call via x402, $0.1/call, status down (last checked 2026-09-15).
Returns chainId, latest block number, gas price, and finality status for a specified EVM chain, signed with Ed25519.
Price / call$0.1
Success—
StatusDown
How this service works
Chain metadata: chainId, latest block, gas price and finality across 5 EVM chains. Deterministic, Ed25519-signed.
Output
Returns a deterministic, Ed25519-signed JSON payload containing chainId, latest block number, current gas price, and finality status for the requested EVM chain. Covers up to 5 EVM chains. First 3 calls per wallet are free (requires X-WALLET header); subsequent calls cost $0.001 USDC via x402 on Base. No charge is incurred on upstream failures.
Example use cases
Example prompt
“What's the current chainId, latest block, gas price, and finality status for Polygon right now — and give me a signed result I can trust?”
Technical details
Endpoint
POSThttps://rpc-network.hergertsynthora.com/serviceWhen to prefer
Use this endpoint when you need cryptographically signed, deterministic chain metadata (chainId, block, gas, finality) across multiple EVM chains in a single call, especially when proof-of-integrity via Ed25519 signature is required. Prefer over raw RPC calls when you want a normalized multi-chain interface with transparent per-call pricing and free-tier access.
Side effects
- Unsupported or unrecognized chain name returns an error
- Missing or malformed X-WALLET header may prevent free-tier access
- Upstream RPC node failure returns no charge but also no data
- Invalid chain string format causes request rejection
- Network timeout if target chain RPC is unreachable
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "rpc-network",
"result": {
"op": "network"
}
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"