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MyeliaSignal Polygon Gas Price Oracle
x402
MyeliaSignal Polygon Gas Price Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns the current Polygon network gas price as a cryptographically signed (Ed25519) attestation with median aggregation across multiple RPC sources
Price / call$0.01
Success—
StatusUnknown
How this service works
Polygon gas price — current transaction fee for Polygon PoS network — Ed25519 signed attestation
Output
Returns a JSON object containing: current Polygon gas price in Gwei (median across sources), base fee in Gwei, estimated transaction cost in USD and native POL, the native token symbol (POL) and its USD price, source count, chain ID (137), an Ed25519 signature over a canonical string, the signing public key, and an ISO 8601 timestamp. The canonical field is a pipe-delimited string summarizing the attestation for easy verification.
Example use cases
Example prompt
“What's the current gas price on the Polygon network? I need a cryptographically signed attestation with the median price in Gwei, the USD transaction cost for a standard transfer, and the Ed25519 signature I can verify.”
Technical details
Endpoint
GEThttps://api.myceliasignal.com/oracle/gas/polygonWhen to prefer
Use this endpoint when you need a verifiable, cryptographically signed Polygon gas price that can be independently validated using Ed25519 signature verification. Prefer this over raw RPC calls when you need an auditable, tamper-evident price feed aggregated from multiple sources, or when building smart contract systems, payment estimators, or compliance tools that require signed oracle data on the Polygon (chain ID 137) network.
Side effects
- Network or RPC source unavailability — may return partial data or error if both polygon.drpc.org and polygon-bor-rpc.publicnode.com are unreachable
- Payment failure — x402 protocol payment of $0.01 USDC not completed, returns 402 Payment Required
- Rate limiting or quota exceeded — returns HTTP 429
- Stale data — timestamp may lag if upstream RPC nodes are slow
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"chain": "polygon",
"method": "median",
"pubkey": "f4f0e52b5f7b54831f965632bf1ebf72769beda4c4e3d36a593f7729ec812615",
"chainId": 137,
"sources": [
"polygon.drpc.org",
"polygon-bor-rpc.publicnode.com"
],
"gasUnits": 21000,
"canonical": "v1|GAS|polygon|283.131600|251.501800|0.002378|0.40|2|median|2026-06-03T04:33:12Z",
"signature": "e88c87ea23dcc48ab61cfe254d767c502968f3865acdb6a7e567cd3b03f0c3780ac5d5af11c40f302610078ad74173f743853cf2b07d00538c5c15e4652df301",
"timestamp": "2026-06-03T04:33:12Z",
"txCostUsd": 0.002378,
"baseFeeGwei": 251.5018,
"sourceCount": 2,
"gasPriceGwei": 283.1316,
"nativeSymbol": "POL",
"txCostNative": 0.00594576,
"signingScheme": "ed25519",
"nativePriceUsd": 0.4
}Tags
x402
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