ExchangeRebel Discovery API
The Discovery API from ExchangeRebel — 4 operation(s) for discovery.
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curl "https://apis.io/api/v1/apis/exchangerebel-com:exchangerebel-com-discovery-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: ExchangeRebel — pay-per-call APIs for AI agents (x402 on…
version: 1.0.0
contact:
name: 'ExchangeRebel (operator: Rebel Data)'
url: https://exchangerebel.com
email: sound.money.investing@gmail.com
x-guidance: 'All paid operations use x402 on Solana: call without payment to get a 402 challenge (SOL recipient + USDC token account + fresh memo), pay with the memo attached via the Solana Memo program, then retry with header X-Payment-Tx: <signature> and ?toll_memo=<memo>. Challenges are dual-version: the PAYMENT-REQUIRED header carries the x402 v2 PaymentRequired object and the response body carries the same challenge in x402 v1 form for compatibility. Free operations (security: []) include each service''s /health catalog with full response shapes. Prices in x-payment-info are USD per call unless the summary says otherwise (RPC is per 1,000-request block; Telegram provisioning is per bot-month; transcription is per minute of audio).'
description: '67 data and utility APIs behind x402 tolls, settled in SOL or USDC on Solana. Call a paid endpoint without payment to receive a 402 x402 challenge (recipient + fresh memo), pay with the memo attached via the Solana Memo program, then retry with the X-Payment-Tx header and toll_memo query parameter. Free catalog/health endpoints are marked without x-payment-info. Full catalogs: GET /toll/discovery and each service''s /health.'
servers:
- url: https://exchangerebel.com
tags:
- name: Discovery
paths:
/toll/discovery/match:
post:
tags:
- Discovery
summary: Match a plain-language task to ranked agent tools/services
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
content:
application/json:
example:
query: I need solana prices
matches:
- name: ExchangeRebel Crypto Data API
endpoint: https://exchangerebel.com/api/data
description: Real-time crypto prices, 24h changes, volumes, network fee estimates and stablecoin peg checks for BTC, ETH, SOL, USDC, USDT. Machine-ready JSON for AI agents. x402 toll-gated.
price_per_call_usd_cents: 5
price_per_call_usd: $0.05
score: 6
matched_keywords:
- solana
- prices
tags:
- crypto
- prices
- market-data
- solana
- ethereum
- bitcoin
- stablecoin
- fees
verified: true
- name: ExchangeRebel x402 Facilitator (Solana)
endpoint: https://facilitator.exchangerebel.com
description: 'x402 payment facilitator on Solana: verify and settle agent USDC payments. Broadcaster and gas sponsor, never custodian. Deploying soon.'
price_per_call_usd_cents: 1
price_per_call_usd: $0.01
score: 3
matched_keywords:
- solana
tags:
- x402
- payments
- settlement
- solana
- facilitator
- usdc
verified: false
count: 2
toll:
paid: true
amount_usd_cents: 2
paid_via: payai
envelope:
v: 1
service: discovery
as_of: '2026-10-12T00:00:00Z'
source: discovery index (fleet listings + registered tools)
grade: aggregated
changes:
supported: false
'402':
description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
requestBody:
content:
application/json:
schema:
type: object
properties:
task:
type: string
description: string (required) - plain-language task
max_price:
type: number
description: number - max USD per call
limit:
type: integer
description: integer 1-20, default 5
required:
- task
x-payment-info:
protocols:
- x402
price:
mode: fixed
currency: USD
amount: '0.02'
security:
- x402Payment: []
operationId: postTollDiscoveryMatch
x-operation-id-source: derived
/toll/discovery/register:
post:
tags:
- Discovery
summary: Register an agent service in the discovery index
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
requestBody:
content:
application/json:
schema:
type: object
properties:
name:
type: string
description: string
endpoint:
type: string
description: string (URL)
description:
type: string
description: string
price_per_call:
type: number
description: number
tags:
type: array
description: array of strings
items:
type: string
schema_url:
type: string
description: string (optional)
security: []
operationId: postTollDiscoveryRegister
x-operation-id-source: derived
/toll/discovery/search:
get:
tags:
- Discovery
summary: Free keyword search teaser over the discovery index
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
parameters:
- name: q
in: query
required: true
schema:
type: string
description: Search keywords
- name: limit
in: query
required: false
schema:
type: string
description: 1-20
security: []
operationId: getTollDiscoverySearch
x-operation-id-source: derived
/toll/discovery/health:
get:
tags:
- Discovery
summary: Service info + full endpoint catalog
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
security: []
operationId: getTollDiscoveryHealth
x-operation-id-source: derived
components:
securitySchemes:
x402Payment:
type: apiKey
in: header
name: X-Payment-Tx
description: 'x402 toll payment proof: the Solana transaction signature of a payment carrying the memo from the 402 challenge; send together with ?toll_memo=<memo>. Payment itself is made on-chain in SOL or USDC to the recipient named in the challenge.'