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How to integrate Web Search Plus with OpenClaw

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How to integrate Web Search Plus with OpenClaw

Integrate Web Search Plus with OpenClaw by creating a ClawHub skill that performs authenticated API calls to Web Search Plus, configuring authentication (OAuth or API key) in ClawHub and your external services, implementing a small server-side connector to handle OAuth token exchange and secrets, and writing the skill’s runtime code to call the Web Search Plus REST endpoints with proper rate limiting, caching, and error handling. Validate webhooks/signatures if Web Search Plus pushes events, keep long-lived state outside the agent (database, cache, scheduler), and debug with logs, HTTP response inspection, and credential/scope checks.

 

Overview

 
  • What you’re building: a ClawHub skill that calls Web Search Plus APIs to fetch web results and returns structured responses to OpenClaw agents.
  • Key constraints: everything is explicit — you must register auth, exchange tokens, store secrets, and host any persistent or long-running components outside the agent runtime.
  • Main components: ClawHub skill configuration, an external connector service for auth/token storage and webhook handling, runtime code to call the Web Search Plus API, and operational controls (rate limiting, caching, logging).

 

Prerequisites

 
  • Web Search Plus developer/API access (client ID/secret or API key) and documentation for its REST endpoints and webhook/signature format.
  • Access to ClawHub to register and configure a skill and its authentication settings.
  • An external runtime for token exchange and any stateful needs (small web server, a secret manager, and a datastore or cache if required).

 

High-level steps

 
  • Decide authentication mode: OAuth (recommended for per-user access) or API key/service account (for single-tenant access).
  • Implement an external connector: handle OAuth redirect & token exchange, securely store tokens, and expose a secure internal API the ClawHub skill can call (or allow the skill to call Web Search Plus directly using stored tokens).
  • Register the skill in ClawHub and wire up OAuth redirect URIs or API key configuration fields as required.
  • Write the skill runtime code that calls Web Search Plus REST endpoints, performing retries, pagination, and response parsing.
  • Validate webhooks (if used) by verifying signatures and routing events to your service; never trust raw inbound requests without verification.
  • Test end-to-end (auth flow, token refresh, search queries, error conditions) and instrument comprehensive logs and metrics.

 

Authentication & credential management

 
  • OAuth flow (per-user): register your connector’s redirect URL with Web Search Plus; when a user installs the skill or authorizes access, redirect them to the provider’s authorization URL. The provider returns a code to your connector; exchange that code server-side for an access token and refresh token. Store tokens in a secure secret store (not in the skill’s ephemeral environment).
  • API key/service account (single-tenant): store the key in a secrets manager or encrypted environment variable and restrict usage by IP or scope where possible.
  • ClawHub configuration: configure the skill to reference the right auth type. Do not embed raw secrets in skill code — pass secrets via environment variables or let the skill call your connector which has the secrets.
  • Scopes: request only the minimal scopes you need; verify the provider’s scopes map to required search and read-only operations.

 

Design the external connector (recommended)

 
  • Role: handle OAuth redirects, token exchange, secure token storage, token refresh, and optionally proxy search requests so tokens never live in the agent runtime.
  • Why external: OpenClaw agent runtimes are typically ephemeral and not for long-term secrets or heavy persistence; putting tokens and retry logic in a small service makes the integration safer and more debuggable.
  • Responsibilities:
    • Expose an authorization start endpoint (redirect to Web Search Plus auth URL).
    • Receive the authorization callback and perform token exchange.
    • Store access/refresh tokens in a secrets store or database keyed by user or workspace ID.
    • Provide an internal API to the skill that returns a valid access token or proxies search requests.
    • Refresh tokens transparently before expiry.

 

Skill runtime: calling the Web Search Plus API

 
  • Keep runtime code focused on request/response transformation; heavy lifting (token storage, refresh) stays in the connector.
  • Implement sensible timeouts, retries with exponential backoff, and rate limit handling based on Web Search Plus headers.
  • Parse and normalize results to a predictable shape for the agent to consume (title, snippet, URL, citation, timestamp).

 

Example: token-proxy + search call (generic)

 
  • Below is a minimal, realistic example. Replace placeholder URLs and values with those from Web Search Plus and your environment.
// <b>//</b> Server-side connector: exchange code for token (Node/Express pseudocode)
const express = require('express');
const fetch = require('node-fetch');
const app = express();

app.get('/oauth/callback', async (req, res) => {
  const code = req.query.code;
  <b>//</b> Exchange code for access token at Web Search Plus token endpoint
  const tokenResp = await fetch('https://api.websearchplus.example.com/oauth/token', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: new URLSearchParams({
      grant_type: 'authorization_code',
      code,
      redirect_uri: process.env.OAUTH_REDIRECT_URI,
      client_id: process.env.CLIENT_ID,
      client_secret: process.env.CLIENT_SECRET
    })
  });
  const tokenJson = await tokenResp.json();
  <b>//</b> Persist tokenJson.access_token and tokenJson.refresh_token securely
  // saveTokensForUser(userId, tokenJson);
  res.send('OK'); 
});

app.get('/proxy/search', async (req, res) => {
  const userId = req.query.user;
  <b>//</b> Retrieve a valid access token from your store and refresh if needed
  const accessToken = await getValidAccessTokenForUser(userId);
  const q = encodeURIComponent(req.query.q || '');
  const apiUrl = `https://api.websearchplus.example.com/v1/search?q=${q}&limit=10`;
  const apiResp = await fetch(apiUrl, {
    headers: { Authorization: `Bearer ${accessToken}`, 'Accept': 'application/json' },
    // <b>//</b> set timeouts/retries at HTTP client level in production
  });
  const results = await apiResp.json();
  res.json(results);
});

app.listen(3000);
// <b>//</b> Client-side skill runtime calling your proxy (this runs inside the skill)
async function searchWeb(query, userId) {
  const resp = await fetch(`https://connector.internal.example.com/proxy/search?q=${encodeURIComponent(query)}&user=${userId}`, {
    headers: { 'Authorization': `Bearer ${process.env.SKILL_INTERNAL_TOKEN}` } // <b>//</b> short-lived token for skill-to-connector auth
  });
  if (!resp.ok) {
    throw new Error(`Search failed: ${resp.status}`);
  }
  return resp.json(); // <b>//</b> normalized result set
}

 

Webhook and inbound event handling

 
  • If Web Search Plus can push updates (new results, status notifications), register a webhook URL pointing to your external connector, not the skill runtime.
  • Validate incoming webhooks by verifying the provider’s signature header or HMAC using a shared secret.
  • After verification, persist events or call internal APIs to notify the agent or enqueue work for the skill to pick up.

 

Testing, debugging, and observability

 
  • Test each layer independently: OAuth flow, token refresh, proxy search, skill invocation.
  • When something breaks, follow these steps:
    • Inspect connector logs for token exchange errors and HTTP status codes.
    • Check Web Search Plus API responses and headers for rate limits and error details.
    • Verify credentials and scopes are correct and that redirect URIs match exactly.
    • Confirm the skill is invoking the connector (check skill logs and internal auth tokens).
    • Use curl/postman to replicate failing API calls and capture raw responses.
  • Emit structured logs and metrics (request latency, error rates, token refresh counts) so you can spot regressions.

 

Production considerations

 
  • Respect API rate limits and implement a shared rate-limiting layer if multiple agents or users will call Web Search Plus.
  • Cache popular search results for short TTLs to reduce costs and latency; invalidate cache on relevant webhook events.
  • Store tokens and secrets in a managed secrets store (AWS Secrets Manager, GCP Secret Manager, HashiCorp Vault) and grant least privilege to the connector process.
  • Keep sensitive or long-lived state outside the agent runtime: user tokens, audit logs, and scheduled jobs should live in external services.
  • Automate token rotation and secret rotation processes.

 

Security checklist

 
  • Use HTTPS everywhere and enforce TLS.
  • Verify webhook signatures and reject unsigned/invalid requests.
  • Limit scopes and use least privilege.
  • Keep long-running secrets out of ephemeral agent containers; use short-lived tokens or internal service auth for skill-to-connector calls.
  • Audit access and log token usage and refresh events.

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Troubleshooting Web Search Plus and OpenClaw Integration

1

Auth errors 401/Invalid API Key

Direct answer: A 401 / "Invalid API Key" means the runtime’s outgoing request lacks a valid credential or uses the wrong header/format. Fix by ensuring the exact API key/token stored in the OpenClaw runtime environment or ClawHub skill config matches the provider, is placed in the correct header, and the skill has the required permission scope.

 

Practical debugging steps

 
  • Check env vars: confirm key present in runtime (e.g., OPENCLAW_SERVICE_KEY) and no stray whitespace.
  • Validate header: provider may expect Authorization: Bearer TOKEN or x-api-key: TOKEN.
  • Inspect scopes/permissions: OAuth tokens need right scopes and not expired.
  • Review logs: include raw request/response and timestamp for clock skew.
  • Confirm ClawHub config: skill credentials, install time secrets, and webhook validation secrets.
// curl example: adjust header name to provider spec
curl -i -H "Authorization: Bearer $API_KEY" https://api.example.com/endpoint
// Node fetch using env var in runtime
const res = await fetch('https://api.example.com/endpoint', {
  headers: { 'Authorization': `Bearer ${process.env.API_KEY}` }
});

2

Mapping Web Search Plus fields to OpenClaw document schema

Direct answer: map Web Search Plus fields into an OpenClaw document by assigning stable identifiers, putting human-readable title/snippet into title and content, preserving URLs and timestamps in url and published_at, and storing provider-specific data in a metadata object for auditing, deduplication, and scoring.

 

Mapping example

 
  • id ← result.cacheId|url hash
  • title ← result.title
  • content ← result.snippet or leadParagraph
  • url, published_at, source ← direct fields
  • metadata ← raw result, keywords, thumbnails, relevanceScore
// mapping function
const map = (r) => ({
  id: r.cacheId || hash(r.url), // <b>// stable id</b>
  title: r.title,
  content: r.snippet || r.leadParagraph,
  url: r.url,
  published_at: r.publishedAt,
  metadata: {source:r.source, score:r.relevanceScore, raw:r}
});

3

Rate limit exceeded / throttling when syncing large result sets

Handle throttling by breaking the sync into paged/batched requests, honoring provider quotas and Retry-After headers, using exponential backoff with jitter, and moving durable sync state outside the OpenClaw runtime so you can resume without loss.

 

Practical steps

 
  • Batch & paginate results and limit parallel calls to the provider’s documented quota.
  • Backoff with exponential delay + jitter and respect Retry-After headers.
  • Checkpoint progress in an external DB or queue (not in-agent memory) for resumable syncs.
  • Use deltas/webhooks when available to avoid full scans.
  • Log & alert on throttling spikes; track request rates per API key/OAuth token.

4

CORS, proxy, and network errors when frontend/ingestion cannot reach API

If a browser frontend or ingestion cannot reach an API, start by diagnosing network and CORS: check browser console and server logs, confirm the API responds to preflight OPTIONS and sends proper CORS headers, or avoid CORS by routing requests through a server-side proxy or API gateway; for webhooks expose a reachable URL (ngrok or hosted) and validate signatures; ensure OpenClaw skills are authenticated and check agent logs for errors.

 

Practical checklist

 

Actionable steps:

  • Network: curl -i to API from client network; check DNS, firewall, VPN.
  • CORS: add Access-Control-Allow-Origin, Allow-Methods, Allow-Headers; respond to OPTIONS; set Allow-Credentials if sending cookies.
  • Proxy: use backend-for-frontend or reverse proxy to avoid browser CORS.
  • Webhooks: use ngrok for local testing; verify signature and reachability.
  • OpenClaw: store keys in env vars, verify skill auth before execution, inspect agent and skill logs.
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