OpenAPI endpoint extractor · Openapi Extract

by OpenAPI endpoint extractor

POSTBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

$0.002

per call · USD Coin on Base

Flatten an OpenAPI 3.x or Swagger 2.x spec into a structured list of callable endpoints - one row per operation with method, path, operationId, summary, tags, parameters (name / in / required / type), JSON-body flag, and documented response codes. Includes per-method and per-tag counts so an agent can pick what to call next without parsing the full spec. Output is sorted by path then method for stable, agent-friendly grouping. Pure CPU - deterministic, no network, no $ref dereferencing.

Endpoint

POST https://agent402.tools/api/openapi-extract

4

Calls / 30d

1

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/openapi-extract", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "spec": {
      "openapi": "3.0.0",
      "paths": {
        "/users": {
          "get": {
            "operationId": "listUsers",
            "parameters": [
              {
                "in": "query",
                "name": "limit",
                "required": false,
                "schema": {
                  "type": "integer"
                }
              }
            ],
            "responses": {
              "200": {
                "description": "ok"
              },
              "400": {
                "description": "bad"
              }
            },
            "summary": "List users",
            "tags": [
              "users"
            ]
          }
        },
        "/users/{id}": {
          "delete": {
            "operationId": "deleteUser",
            "parameters": [
              {
                "in": "path",
                "name": "id",
                "required": true,
                "schema": {
                  "type": "string"
                }
              }
            ],
            "responses": {
              "204": {
                "description": "gone"
              }
            },
            "summary": "Delete user",
            "tags": [
              "users"
            ]
          }
        }
      }
    }
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://agent402.tools/api/openapi-extract" \
  -H "Content-Type: application/json" \
  -d '{"spec":{"openapi":"3.0.0","paths":{"/users":{"get":{"operationId":"listUsers","parameters":[{"in":"query","name":"limit","required":false,"schema":{"type":"integer"}}],"responses":{"200":{"description":"ok"},"400":{"description":"bad"}},"summary":"List users","tags":["users"]}},"/users/{id}":{"delete":{"operationId":"deleteUser","parameters":[{"in":"path","name":"id","required":true,"schema":{"type":"string"}}],"responses":{"204":{"description":"gone"}},"summary":"Delete user","tags":["users"]}}}}}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "endpoints": [
    {
      "hasJsonBody": false,
      "method": "GET",
      "operationId": "listUsers",
      "params": [
        {
          "in": "query",
          "name": "limit",
          "required": false,
          "type": "integer"
        }
      ],
      "path": "/users",
      "responses": [
        "200",
        "400"
      ],
      "summary": "List users",
      "tags": [
        "users"
      ]
    },
    {
      "hasJsonBody": false,
      "method": "DELETE",
      "operationId": "deleteUser",
      "params": [
        {
          "in": "path",
          "name": "id",
          "required": true,
          "type": "string"
        }
      ],
      "path": "/users/{id}",
      "responses": [
        "204"
      ],
      "summary": "Delete user",
      "tags": [
        "users"
      ]
    }
  ],
  "stats": {
    "byMethod": {
      "DELETE": 1,
      "GET": 1
    },
    "byTag": {
      "users": 2
    },
    "total": 2
  }
}

Payment details

Pay to0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Schemesexact, upto

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