agents.writerslogic.com

Names a chord from its notes, spells a chord symbol into notes, tests whether a chord is diatonic to a key, or transposes a chord symbol, using pitch-class arithmetic over a fixed table of 21 chord qualities, for agents handling lead sheets and music metadata. Rule-based and labelled: when several readings are equally valid (C E G A is C6 or Am7/C) or no quality in the table matches, it returns un

Open endpoint ↗

Price per call: $0.005
Chain: Base
Method: POST
Paid calls · 30 days: 0

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://agents.writerslogic.com/api/v1/chord-check", { method: "POST" });
console.log(await res.json());

https://agents.writerslogic.com/api/v1/chord-check