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Synapse API — Ink Network RPC Endpoint
x402
Synapse API — Ink Network RPC Endpoint is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).
Provides JSON-RPC access to the Ink blockchain network, enabling on-chain queries and transaction submission via pay-per-call micropayments.
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
A standard JSON-RPC response object containing the result field with on-chain data (balance, block info, transaction receipt, contract return value, etc.) or an error object with code and message if the call fails.
Example use cases
Check wallet balance on Ink
“What's the current ETH balance for wallet address 0x1234abcd... on the Ink network? Use the RPC endpoint to fetch it.”
Submit transaction to Ink chain
“Broadcast this signed raw transaction to the Ink blockchain: 0xf86c...ab12. I need it submitted right away.”
Read smart contract state on Ink
“Call the eth_call method on the Ink network for contract 0xDeAdBeEf... with the encoded function selector for balanceOf, and return the result.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/ink/rpc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need direct JSON-RPC access to the Ink blockchain network specifically, particularly for querying chain state, submitting transactions, or interacting with smart contracts on Ink. Prefer this over generic multi-chain RPCs when Ink network compatibility and pay-per-call micropayment billing (via x402/USDC) is acceptable.
Side effects
- Invalid RPC method name returns JSON-RPC error -32601
- Malformed params array causes parse error -32700
- Network congestion or node unavailability returns 503 or timeout
- Payment not received causes 402 Payment Required response
- Invalid transaction data causes execution revert or -32000 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
Reviews
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How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
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