ExchangeRebel Spend Governance API
The Spend Governance API from ExchangeRebel — 5 operation(s) for spend governance.
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curl "https://apis.io/api/v1/apis/exchangerebel-com:exchangerebel-com-spend-governance-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: Spend Governance
paths:
/toll/spend/check:
post:
tags:
- Spend Governance
summary: Check a proposed agent spend against the agent's budget policy — the gate…
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
content:
application/json:
example:
approved: true
remaining_budget_cents: 9750
policy_applied: active-check,per-tx-limit,daily_limit_cents,blocklist,category-allowlist
inputs_summary:
policy_configured: true
checks_applied:
- active-check
- per-tx-limit
- daily_limit_cents
- blocklist
- category-allowlist
budget_windows_configured: 1
recipient_supplied: true
category: data
global_blocklist_checked: true
paid_via: payai
envelope:
v: 1
service: spend-governance
as_of: '2026-10-13T00:00:00Z'
source: agent spend policy + usage state (KV)
grade: derived
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:
agent_id:
type: string
description: string
amount_usd_cents:
type: integer
description: integer
recipient:
type: string
description: string (optional)
category:
type: string
description: string (optional)
run_id:
type: string
description: string (optional)
x-payment-info:
protocols:
- x402
price:
mode: fixed
currency: USD
amount: '0.01'
security:
- x402Payment: []
operationId: postTollSpendCheck
x-operation-id-source: derived
/toll/spend/policy:
post:
tags:
- Spend Governance
summary: Create/update an agent spend policy (free).
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:
agent_id:
type: string
description: string
per_tx_limit_cents:
type: integer
description: integer
daily_limit_cents:
type: integer
description: integer
weekly_limit_cents:
type: integer
description: integer
monthly_limit_cents:
type: integer
description: integer
per_run_limit_cents:
type: integer
description: integer
allowed_categories:
type: array
description: array
items:
type: string
blocked_recipients:
type: array
description: array
items:
type: string
active:
type: boolean
description: boolean
security: []
operationId: postTollSpendPolicy
x-operation-id-source: derived
/toll/spend/policy/{agent_id}:
get:
tags:
- Spend Governance
summary: Current policy + live usage for an agent.
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
parameters:
- name: agent_id
in: path
required: true
schema:
type: string
description: Agent id
security: []
operationId: getTollSpendPolicyByAgentId
x-operation-id-source: derived
/toll/spend/audit/{agent_id}:
get:
tags:
- Spend Governance
summary: Recent spend decisions for an agent (free)
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
parameters:
- name: agent_id
in: path
required: true
schema:
type: string
description: Agent id
security: []
operationId: getTollSpendAuditByAgentId
x-operation-id-source: derived
/toll/spend/health:
get:
tags:
- Spend Governance
summary: Service info + endpoint catalog
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
security: []
operationId: getTollSpendHealth
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.'