fix(AI endpoints): Adding AI friendly endpoints

bin/server.js

@@ -21,6 +21,7 @@ import wlogger from '../src/adapters/wlogger.js'
 import { buildX402Routes, getX402Settings, getBasicAuthSettings, createAuthHeader, getFacilitatorConnectionOptions } from '../src/config/x402.js'
 import { basicAuthMiddleware } from '../src/middleware/basic-auth.js'
 import DiscoveryRouter from '../src/controllers/discovery/router.js'
+import DiscoveryController from '../src/controllers/discovery/controller.js'
 import { createFacilitatorClient } from '../src/lib/x402/facilitator-client-factory.js'
 
 // Load environment variables
@@ -259,7 +260,15 @@ class Server {
         res.sendFile(docsPath)
       })
 
-      // AI-friendly discovery endpoints
+      // AI-friendly discovery endpoints (aliases for tools that expect these paths; same payloads as DiscoveryRouter)
+      const discoveryForAi = new DiscoveryController()
+      app.get('/.well-known/x402.json', (req, res) => {
+        discoveryForAi.x402Manifest(req, res)
+      })
+      app.get('/agent.json', (req, res) => {
+        discoveryForAi.agentManifest(req, res)
+      })
+
       app.get('/llms.txt', (req, res) => {
         const llmsPath = join(__dirname, '..', 'public', 'llms.txt')
         res.setHeader('Content-Type', 'text/plain')

src/controllers/discovery/controller.js

@@ -3,16 +3,15 @@
 */
 
 import config from '../../config/index.js'
-import { getX402Settings } from '../../config/x402.js'
+import wlogger from '../../adapters/wlogger.js'
+import { getX402Settings, getX402WellKnownManifest as defaultGetX402WellKnownManifest } from '../../config/x402.js'
 import { getDiscoveryDocuments } from '../../discovery/build-documents.js'
 
-const BCH_MAINNET_CAIP2 = 'bip122:000000000000000000651ef99cb9fcbe'
-const BCH_NATIVE_ASSET = '0x0000000000000000000000000000000000000001'
-const X402_TIMEOUT_SECONDS = 60
-
 class DiscoveryController {
   constructor (localConfig = {}) {
     this.getX402Settings = localConfig.getX402Settings || getX402Settings
+    this.getX402WellKnownManifest =
+      localConfig.getX402WellKnownManifest || defaultGetX402WellKnownManifest
     this.getDiscoveryDocuments = localConfig.getDiscoveryDocuments || getDiscoveryDocuments
     this.apiPrefix = localConfig.apiPrefix || config.apiPrefix
 
@@ -36,47 +35,25 @@ class DiscoveryController {
   }
 
   /**
-   * @api {get} /.well-known/x402 x402-bch resource discovery
+   * @api {get} /.well-known/x402 x402 v2 resource discovery
    * @apiName X402Discovery
    * @apiGroup Discovery
-   * @apiDescription Returns x402-bch v2 resource and payment requirement metadata.
+   * @apiDescription Returns x402 v2 resource and payment metadata (Base USDC, `exact` scheme) — same payload as `/.well-known/x402.json`.
    */
   x402Manifest (req, res) {
     if (this.respondNotFoundWhenDisabled(res)) return
 
-    const x402 = this.getX402Settings()
     const apiPrefix = this.apiPrefix || '/v6'
-    const prefixWithSlash = apiPrefix.startsWith('/') ? apiPrefix : `/${apiPrefix}`
+    try {
-
+      const payload = this.getX402WellKnownManifest(apiPrefix)
-    const payload = {
+      return res.status(200).json(payload)
-      x402Version: 2,
+    } catch (err) {
-      network: BCH_MAINNET_CAIP2,
+      wlogger.error('x402 well-known manifest error:', err)
-      facilitator: {
+      return res.status(500).json({
-        url: x402.facilitatorUrl
+        error: 'x402 configuration error',
-      },
+        message: err instanceof Error ? err.message : String(err)
-      resources: [
+      })
-        {
-          resource: `${prefixWithSlash}/*`,
-          type: 'http',
-          x402Version: 2,
-          accepts: [
-            {
-              scheme: 'utxo',
-              network: BCH_MAINNET_CAIP2,
-              amount: String(x402.priceSat),
-              description: `Access to protected psf-bch-api resources (${x402.priceSat} satoshis)`,
-              mimeType: 'application/json',
-              payTo: x402.serverAddress,
-              maxTimeoutSeconds: X402_TIMEOUT_SECONDS,
-              asset: BCH_NATIVE_ASSET,
-              extra: {}
-            }
-          ]
-        }
-      ]
     }
-
-    return res.status(200).json(payload)
   }
 
   /**

src/discovery/build-documents.js

@@ -6,9 +6,8 @@ import { readFileSync, existsSync, readdirSync } from 'fs'
 import { resolve } from 'path'
 
 import config from '../config/index.js'
-import { getX402Settings } from '../config/x402.js'
+import { getX402AgentAuthPricing } from '../config/x402.js'
 
-const BCH_MAINNET_CAIP2 = 'bip122:000000000000000000651ef99cb9fcbe'
 const X402_SPEC_VERSION = 2
 
 let cachedDocs = null
@@ -90,7 +89,7 @@ function normalizePaths (endpoints) {
           description: 'Payment required when x402 is enabled'
         }
       },
-      'x-payment-model': 'x402-bch-v2'
+      'x-payment-model': 'x402-v2-exact-usdc'
     }
 
     paths[endpoint.path][endpoint.method.toLowerCase()] = op
@@ -134,13 +133,15 @@ function buildLlms (endpoints) {
   const lines = [
     '# psf-bch-api',
     '',
-    '> REST API proxy to Bitcoin Cash infrastructure with optional x402-bch monetized access.',
+    '> REST API proxy to Bitcoin Cash infrastructure with optional x402 (USDC on Base) monetized access.',
     '',
     '## Discovery',
     '- [OpenAPI document](/openapi.json): OpenAPI 3 projection generated from apiDoc annotations.',
     '- [Swagger document](/swagger.json): Swagger 2.0 compatibility projection.',
-    '- [x402 manifest](/.well-known/x402): x402-bch v2 payment requirement discovery.',
+    '- [x402 manifest](/.well-known/x402): x402 v2 payment requirement discovery (Base USDC).',
+    '- [x402.json](/.well-known/x402.json): same JSON as the x402 manifest (for tools that expect a `.json` path).',
     '- [Agent manifest](/.well-known/agent.json): draft agent capability surface.',
+    '- [agent.json](/agent.json): same as the agent manifest (convenience path).',
     '',
     '## API Groups'
   ]
@@ -157,7 +158,7 @@ function buildLlms (endpoints) {
 }
 
 function buildAgent (endpoints) {
-  const x402 = getX402Settings()
+  const pricing = getX402AgentAuthPricing()
   const actions = endpoints.map(endpoint => ({
     id: endpoint.operationId,
     description: endpoint.summary,
@@ -166,24 +167,48 @@ function buildAgent (endpoints) {
     method: endpoint.method
   }))
 
+  const auth = pricing
+    ? {
+        type: 'x402',
+        x402Version: X402_SPEC_VERSION,
+        required_for: actions.map(a => a.id),
+        pricing: {
+          scheme: pricing.scheme,
+          network: pricing.network,
+          payTo: pricing.payTo,
+          priceUSDC: String(pricing.priceUSDC),
+          facilitatorUrl: pricing.facilitatorUrl
+        }
+      }
+    : {
+        type: 'x402',
+        x402Version: X402_SPEC_VERSION,
+        required_for: actions.map(a => a.id),
+        pricing: {
+          note: 'Configure SERVER_BASE_ADDRESS, x402_NETWORK, and x402 for full pricing when X402 is enabled'
+        }
+      }
+
   return {
     awp_version: '0.1',
-    domain: 'localhost',
+    name: 'psf-bch-api',
+    description:
+      'REST API for BCH full node, Fulcrum, and SLP data; access via x402 USDC on Base or documented bypasses.',
+    domain: (process.env.PUBLIC_BASE_URL || '').trim() || null,
     intent: 'Programmatic BCH blockchain API access',
+    discovery: {
+      openapi: '/openapi.json',
+      x402: '/.well-known/x402',
+      x402_json: '/.well-known/x402.json',
+      agent: '/.well-known/agent.json',
+      agent_json: '/agent.json',
+      llms: '/llms.txt'
+    },
     capabilities: {
       batch_actions: false,
       streaming: false
     },
-    auth: {
+    auth,
-      type: 'x402-bch-v2',
-      required_for: actions.map(a => a.id),
-      pricing: {
-        amountSat: String(x402.priceSat),
-        payTo: x402.serverAddress,
-        network: BCH_MAINNET_CAIP2,
-        x402Version: X402_SPEC_VERSION
-      }
-    },
     actions
   }
 }

test/unit/controllers/discovery-controller-unit.js

@@ -14,8 +14,33 @@ describe('#discovery-controller.js', () => {
       getX402Settings: () => ({
         enabled,
         facilitatorUrl: 'http://localhost:4345/facilitator',
-        serverAddress: 'bitcoincash:qtestaddress',
+        serverAddress: '0x0000000000000000000000000000000000000001',
-        priceSat: 200
+        priceUSDC: '0.1',
+        network: 'eip155:8453'
+      }),
+      getX402WellKnownManifest: () => ({
+        x402Version: 2,
+        network: 'eip155:8453',
+        facilitator: { url: 'http://localhost:4345/facilitator' },
+        resources: [
+          {
+            resource: '/v6/*',
+            type: 'http',
+            x402Version: 2,
+            accepts: [
+              {
+                scheme: 'exact',
+                network: 'eip155:8453',
+                price: '0.1',
+                payTo: '0x0000000000000000000000000000000000000001',
+                description: 'test',
+                mimeType: 'application/json',
+                maxTimeoutSeconds: 120,
+                extra: {}
+              }
+            ]
+          }
+        ]
       }),
       getDiscoveryDocuments: () => ({
         openapi: { openapi: '3.0.3', paths: { '/v6/price/bchusd': {} } },
@@ -59,8 +84,8 @@ describe('#discovery-controller.js', () => {
       assert.equal(res.statusValue, 200)
       assert.equal(res.jsonData.x402Version, 2)
       assert.isArray(res.jsonData.resources)
-      assert.equal(res.jsonData.resources[0].accepts[0].scheme, 'utxo')
+      assert.equal(res.jsonData.resources[0].accepts[0].scheme, 'exact')
-      assert.equal(res.jsonData.resources[0].accepts[0].amount, '200')
+      assert.equal(res.jsonData.resources[0].accepts[0].price, '0.1')
     })
 
     it('should return openapi and swagger docs', async () => {