EverySearch Similar pages API

POST

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Give a URL and find semantically similar pages, which keyword search cannot do

Price $0.69 per 1,000 requests ($0.000694 per call). Failed calls and empty results are not charged.

AI prompt

Paste this into your AI assistant. It already holds this endpoint's parameters, response fields and an example request, so the assistant can ask what you need and then write the scraper.

Help me write a script that calls the EveryInfra "Similar pages" API.

API contract:
- Request: POST https://api.everyinfra.com/api/v1/search with the header Authorization: Bearer <API Key>. Read the key from the EVERYINFRA_API_KEY environment variable; do not put it in the code.
- In the request body, set tool to similar and put the parameters in params.
- Required parameters:
  - url: The full http(s) URL of the reference page.
- Optional parameters:
  - num: Number of results to return.
- Example request body:
{
  "tool": "similar",
  "params": {
    "url": "https://www.python.org/",
    "num": 3
  }
}
- Billing: Price $0.69 per 1,000 requests ($0.000694 per call). Failed calls and empty results are not charged.
- On 422, fix the parameters using the suggestions and allowed values in the error. On 429 or 503, wait for Retry-After and try again.

Before writing code, ask me how many items I need to process and what format to save the results in, then confirm the plan and the rough cost with me.

Request parameters

Name	In	Type	Required	Default	Description
`Authorization`	header	`string`	Yes	-	Bearer followed by your API key. Create it in the console; never put it in a URL or a code repository.
`tool`	body	`string`	Yes	`similar`	Tool name, fixed value.
`url`	body.params	`string`	Yes	-	The full http(s) URL of the reference page.
`num`	body.params	`integer (1–10)`	No	`8`	Number of results to return.

Code samples

bash

curl -X POST 'https://api.everyinfra.com/api/v1/search' \
  -H "Authorization: Bearer $EVERYINFRA_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "tool": "similar",
  "params": {
    "url": "https://www.python.org/",
    "num": 3
  }
}'

OpenAPI definition (JSON)Samples read the key from the EVERYINFRA_API_KEY environment variable; copied code never contains your key.

Response example

Real response

Captured October 24, 2026 at 18:28 (UTC) by calling this API with the parameters in the code sample above. results and count are that call's real response with personal information (names, handles, avatars, profile links, contact details) removed; the list keeps the first 2. id, billing and quota differ on every call, so only their shape is shown.

json

{
  "id": "req_…",
  "tool": "similar",
  "results": [
    {
      "title": "About the Python Software Foundation | Python Software Foundation",
      "url": "https://pythonlang.net/psf/about/",
      "snippet": ""
    },
    {
      "title": "About the Python Software Foundation | Python Software Foundation",
      "url": "https://exodusrust.com/v/https/www.python.org/psf/about/",
      "snippet": ""
    }
  ],
  "billing": {
    "charged": …,
    "charged_usd": …,
    "balance_after_usd": …,
    …
  },
  "quota": { … }
}

Errors and billing

401: Missing or invalid key.
402: Insufficient balance. Top up first.
422: Invalid parameter name or value. Fix it using the suggestions in the error. No charge.
429: Per-minute request limit reached. Wait for Retry-After, then try again.
503: Could not complete. The held charge is returned to your balance. If the outcome is unknown, verify it before you retry.
200 empty: No data. No charge.

Errors