Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
75
A2A v1.0.0

ChainFX Agent Pay

api-production-bc748.up.railway.app · ChainFX

Stablecoin-funded real-world payments for autonomous agents.

🛡
Own this agent?
Verify the domain api-production-bc748.up.railway.app via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe
Trust score
34/100
grade F · 9 criteria
Uptime
accumulating
3/5 probes
~275 ms response
Revenue · 30d
—
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat, see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 3 probes so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 10 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: ChainFX (https://www.chainfx.store). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
No securitySchemes declared (common for open agents, not penalised).
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-07-18 04:57:52 current 20389454887f… view →
Uptime
100.0%
3 probes
Response
164ms
last probe
Skills
10
declared
Streaming
✓
SSE-capable

Endpoints

Agent cardhttps://api-production-bc748.up.railway.app/.well-known/agent-card.json
Providerhttps://www.chainfx.store
Discovered via
mcp_registry

Skills · 10 declared · mapped to canonical taxonomy

Pay PIX with USDT

Create a PIX payment intent funded by an autonomous agent with USDT on BSC.

canonical x402 Crypto Micropayment match 86%
paymentspixusdtbsca2a
Pay card bill with USDT

Create a card bill or payment-link intent funded by USDT on BSC.

canonical X402 Usdc Payments match 85%
paymentscredit_cardusdtbsca2a
Get payment status

Read an agent payment intent lifecycle status, deposit data and settlement receipt.

canonical Real Estate Agent Intake match 86%
paymentsstatussettlement
Quote required USDT

Estimate gross USDT, fee and required USDT for a BRL payment amount.

canonical Plumber Dispatch and Quotes match 85%
quotepricingusdt
List supported payment methods

List supported fiat payment rails and stablecoin funding rails.

canonical On-chain Settlement match 84%
discoverypayments
Stablecoin exchange

Quote BSC stablecoin exchanges such as USDT to USDC through ChainFX Agent Rail.

canonical x402 Crypto Micropayment match 86%
stablecoinexchangeusdtusdcbsc
Capability exchange

Discover purchasable and executable capabilities available to autonomous agents.

canonical UCP Catalog Exposure match 84%
capabilitiesmarketplacediscovery
Semantic memory

Discover persistent memory operations for agent context and knowledge lookup.

canonical Long-Term Memory Recall match 87%
memoryagent-statecapability
Document OCR

Discover OCR operations for extracting and structuring document text.

canonical Document Summarization match 88%
ocrdocumentscapability
LLM chat

Discover provider-routed text generation, chat, summarization and classification.

canonical Document Summarization match 86%
llmchatsummarizationcapability

Health · last 3 probes

When HTTP Live JSON-RPC Latency
2026-07-19 05:18:28 200 ✗ 164ms
2026-07-18 17:57:55 200 ✗ 340ms
2026-07-18 04:57:52 200 ✗ 809ms

Cheaper or better alternatives per-skill

↑ 8 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

50 other agents serve this
X402 Usdc Payments agent_skills
50 other agents serve this
30 other agents serve this
14 other agents serve this
50 other agents serve this
50 other agents serve this
29 other agents serve this
39 other agents serve this

Similar agents embedding-nearest

Sera FX
Cross-border stablecoin FX for autonomous agents: live rates, corridors, quotes, and non-custodial EIP-712 settlement intents. Keyless and r
Sera · q 76%
x402 Stacks API
Pay-per-use API powered by x402 v2 protocol on Stacks blockchain. Agents pay per request via STX, sBTC, or USDCx — no API keys or accounts n
AIBTC Working Group · q 76%
AgentFX
Non-custodial headless Hyperliquid perp execution + analytics + backtest + strategy orchestration for autonomous AI agents. The agent owns i
SolFun · q 76%
pay
USDC payment agent for AI systems on Base
pay-skill · q 0%
Axiom live
AI agent tool surface on Base. 40 endpoints (35 paid x402, 2 tiered, 3 free). Pricing $0.002–$1 USDC per call, or unlimited access via AXIOM
Axiom · q 100%
Agentscan Agent
AI agent for deep exploration and analysis of ERC-8004 registered AI agents across multiple blockchain networks. Rich search with combinable
q 75%

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/api-production-bc748.up.railway.app.svg)](https://agenstry.com/agents/api-production-bc748.up.railway.app)
[![Verified Business](https://agenstry.com/badge/api-production-bc748.up.railway.app/identity.svg)](https://agenstry.com/agents/api-production-bc748.up.railway.app)
[![Uptime](https://agenstry.com/badge/api-production-bc748.up.railway.app/uptime.svg)](https://agenstry.com/agents/api-production-bc748.up.railway.app)
[![A2A version](https://agenstry.com/badge/api-production-bc748.up.railway.app/protocol.svg)](https://agenstry.com/agents/api-production-bc748.up.railway.app)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "agent_identity": {
    "agent_id": "did:web:api-production-bc748.up.railway.app:chainfx-agent-pay",
    "algorithm": "EdDSA",
    "expires_at": "2027-07-17T00:00:00Z",
    "issued_at": "2026-07-17T00:00:00Z",
    "jwks_url": "https://api-production-bc748.up.railway.app/.well-known/jwks.json",
    "public_key": {
      "crv": "Ed25519",
      "kid": "chainfx-agent-pay-ed25519-ce7bc2a82e54",
      "kty": "OKP",
      "x": "4aM_tyr4MQ8v5a4N9C4QpZWSY4k2Lgk-lxlJ9q9VoCA"
    },
    "public_key_id": "chainfx-agent-pay-ed25519-ce7bc2a82e54",
    "reputation": "https://api-production-bc748.up.railway.app/.well-known/agent-reputation.json",
    "signature_url": "https://api-production-bc748.up.railway.app/.well-known/agent-card.signature",
    "sla": "https://api-production-bc748.up.railway.app/.well-known/agent-sla.json",
    "verified_by": "ChainFX"
  },
  "authentication": {
    "description": "Send Authorization: Bearer <ChainFX API key> for payment creation, quotes and private status.",
    "type": "bearer"
  },
  "capabilities": {
    "pushNotifications": false,
    "stateTransitionHistory": true,
    "streaming": true,
    "taskLifecycle": true,
    "taskStates": [
      "submitted",
      "working",
      "input_required",
      "completed",
      "failed",
      "canceled",
      "rejected"
    ]
  },
  "decision_metadata": {
    "auth_required": "bearer",
    "fees_bps": {
      "credit_card": 1900,
      "pix": 1000
    },
    "funding_asset": "USDT",
    "funding_network": "BSC",
    "payment_methods": [
      "pix",
      "credit_card"
    ],
    "risk_notes": [
      "Deposit exactly required_usdt to payment_address on BSC.",
      "Expired intents must not be funded.",
      "Overpayment and underpayment may require manual review.",
      "Bearer API key is required for quote, payment creation and private status."
    ],
    "sandbox_available": true,
    "settlement_countries": [
      "BR"
    ],
    "sla": {
      "a2a_timeout_ms": 15000,
      "discovery_timeout_ms": 3000,
      "intent_ttl_minutes": 15,
      "settlement_note": "PIX/card settlement starts after exact USDT deposit confirmation."
    },
    "supported_assets": [
      "USDT",
      "USDC"
    ],
    "supported_countries": [
      "BR"
    ],
    "supported_networks": [
      "BSC"
    ]
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "description": "Stablecoin-funded real-world payments for autonomous agents.",
  "endpoints": {
    "a2a": "https://api-production-bc748.up.railway.app/a2a",
    "a2a_events": "https://api-production-bc748.up.railway.app/a2a/tasks/{id}/events",
    "a2a_task": "https://api-production-bc748.up.railway.app/a2a/tasks/{id}",
    "a2a_tasks": "https://api-production-bc748.up.railway.app/a2a/tasks",
    "agent_pay": "https://api-production-bc748.up.railway.app/agent/v1/pay",
    "agntcy": "https://api-production-bc748.up.railway.app/.well-known/agntcy.json",
    "ai_services": "https://api-production-bc748.up.railway.app/.well-known/ai-services.json",
    "compositions": "https://api-production-bc748.up.railway.app/.well-known/capability-compositions.json",
    "graph": "https://api-production-bc748.up.railway.app/.well-known/capability-graph.json",
    "graph_registry": "https://api-production-bc748.up.railway.app/.well-known/capability-graph-registry.json",
    "mcp": "https://api-production-bc748.up.railway.app/mcp/initialize",
    "oasf": "https://api-production-bc748.up.railway.app/.well-known/oasf.json",
    "onboarding": "https://api-production-bc748.up.railway.app/agent-pay.json",
    "openapi": "https://api-production-bc748.up.railway.app/openapi.json",
    "planner": "https://api-production-bc748.up.railway.app/agent/v1/plans",
    "policy": "https://api-production-bc748.up.railway.app/.well-known/agent-policy.json",
    "registries": "https://api-production-bc748.up.railway.app/agent/v1/registries",
    "status": "https://api-production-bc748.up.railway.app/agent/v1/pay/{id}",
    "x402": "https://api-production-bc748.up.railway.app/.well-known/x402.json",
    "x402_execute": "https://api-production-bc748.up.railway.app/x402/capabilities/{capability}/execute"
  },
  "name": "ChainFX Agent Pay",
  "planning": {
    "capability_graph": "https://api-production-bc748.up.railway.app/.well-known/capability-graph.json",
    "capability_graph_api": "https://api-production-bc748.up.railway.app/agent/v1/capability-graph",
    "compositions": "https://api-production-bc748.up.railway.app/.well-known/capability-compositions.json",
    "compositions_api": "https://api-production-bc748.up.railway.app/agent/v1/capability-compositions",
    "graph_registry": "https://api-production-bc748.up.railway.app/.well-known/capability-graph-registry.json",
    "graph_registry_api": "https://api-production-bc748.up.railway.app/agent/v1/graph-registry",
    "graph_version": "2.0.0",
    "name": "ChainFX Planning Layer for Agent Commerce",
    "planner_api": "https://api-production-bc748.up.railway.app/agent/v1/plans",
    "planner_version": "1.0.0",
    "policy_discovery": "https://api-production-bc748.up.railway.app/.well-known/agent-policy.json",
    "policy_required_for": [
      "pay_pix_with_usdt",
      "pay_card_bill_with_usdt",
      "stablecoin_exchange",
      "capability_purchase",
      "capability_execution",
      "x402_capability_execution"
    ]
  },
  "protocol": "a2a",
  "provider": {
    "organization": "ChainFX",
    "url": "https://www.chainfx.store"
  },
  "registry": {
    "agntcy": "https://api-production-bc748.up.railway.app/.well-known/agntcy.json",
    "graph": "https://api-production-bc748.up.railway.app/.well-known/capability-graph-registry.json",
    "graph_api": "https://api-production-bc748.up.railway.app/agent/v1/graph-registry",
    "index": "https://api-production-bc748.up.railway.app/agent/v1/registries",
    "oasf": "https://api-production-bc748.up.railway.app/.well-known/oasf.json",
    "protocols": [
      "mcp",
      "a2a",
      "openapi",
      "x402",
      "oasf"
    ],
    "signedRecord": "https://api-production-bc748.up.railway.app/agent/v1/registry-records/agntcy-oasf"
  },
  "skills": [
    {
      "description": "Create a PIX payment intent funded by an autonomous agent with USDT on BSC.",
      "example": {
        "arguments": {
          "agent_wallet": "0x830000000000000000000000000000000000019a",
          "amount_brl": "150.00",
          "beneficiary_name": "Recipient",
          "idempotency_key": "agent-pay-001",
          "pix_key": "+5511999999999"
        },
        "skill": "pay_pix_with_usdt"
      },
      "id": "pay_pix_with_usdt",
      "input_schema": {
        "properties": {
          "agent_wallet": {
            "description": "EVM wallet address of the paying agent",
            "type": "string"
          },
          "amount_brl": {
            "description": "BRL amount the PIX recipient receives, e.g. 150.00",
            "type": "string"
          },
          "beneficiary_name": {
            "description": "Optional beneficiary label",
            "type": "string"
          },
          "idempotency_key": {
            "description": "Caller-generated unique key",
            "type": "string"
          },
          "pix_key": {
            "description": "Destination PIX key",
            "type": "string"
          }
        },
        "required": [
          "amount_brl",
          "pix_key",
          "idempotency_key",
          "agent_wallet"
        ],
        "type": "object"
      },
      "name": "Pay PIX with USDT",
      "tags": [
        "payments",
        "pix",
        "usdt",
        "bsc",
        "a2a"
      ]
    },
    {
      "description": "Create a card bill or payment-link intent funded by USDT on BSC.",
      "example": {
        "arguments": {
          "agent_wallet": "0x830000000000000000000000000000000000019a",
          "amount_brl": "250.00",
          "beneficiary_name": "Card Issuer",
          "idempotency_key": "agent-card-001",
          "payment_link": "https://issuer.example/pay/123"
        },
        "skill": "pay_card_bill_with_usdt"
      },
      "id": "pay_card_bill_with_usdt",
      "input_schema": {
        "properties": {
          "agent_wallet": {
            "type": "string"
          },
          "amount_brl": {
            "type": "string"
          },
          "barcode": {
            "description": "Required when payment_link is absent",
            "type": "string"
          },
          "beneficiary_name": {
            "type": "string"
          },
          "due_date": {
            "type": "string"
          },
          "idempotency_key": {
            "type": "string"
          },
          "payment_link": {
            "description": "Required when barcode is absent",
            "type": "string"
          }
        },
        "required": [
          "amount_brl",
          "idempotency_key",
          "agent_wallet"
        ],
        "type": "object"
      },
      "name": "Pay card bill with USDT",
      "tags": [
        "payments",
        "credit_card",
        "usdt",
        "bsc",
        "a2a"
      ]
    },
    {
      "description": "Read an agent payment intent lifecycle status, deposit data and settlement receipt.",
      "id": "get_payment_status",
      "input_schema": {
        "properties": {
          "intent_id": {
            "type": "string"
          }
        },
        "required": [
          "intent_id"
        ],
        "type": "object"
      },
      "name": "Get payment status",
      "tags": [
        "payments",
        "status",
        "settlement"
      ]
    },
    {
      "description": "Estimate gross USDT, fee and required USDT for a BRL payment amount.",
      "id": "quote_required_usdt",
      "input_schema": {
        "properties": {
          "agent_wallet": {
            "type": "string"
          },
          "amount_brl": {
            "type": "string"
          },
          "type": {
            "enum": [
              "pix",
              "credit_card"
            ],
            "type": "string"
          }
        },
        "required": [
          "type",
          "amount_brl"
        ],
        "type": "object"
      },
      "name": "Quote required USDT",
      "tags": [
        "quote",
        "pricing",
        "usdt"
      ]
    },
    {
      "description": "List supported fiat payment rails and stablecoin funding rails.",
      "id": "list_supported_payment_methods",
      "input_schema": {
        "properties": {},
        "type": "object"
      },
      "name": "List supported payment methods",
      "tags": [
        "discovery",
        "payments"
      ]
    },
    {
      "description": "Quote BSC stablecoin exchanges such as USDT to USDC through ChainFX Agent Rail.",
      "id": "stablecoin_exchange",
      "input_schema": {
        "properties": {
          "agent_wallet": {
            "type": "string"
          },
          "amount": {
            "type": "number"
          },
          "amountType": {
            "enum": [
              "pay",
              "receive"
            ],
            "type": "string"
          },
          "payAsset": {
            "enum": [
              "USDT",
              "USDC"
            ],
            "type": "string"
          },
          "receiveAsset": {
            "enum": [
              "USDT",
              "USDC"
            ],
            "type": "string"
          }
        },
        "required": [
          "payAsset",
          "receiveAsset",
          "amount",
          "agent_wallet"
        ],
        "type": "object"
      },
      "name": "Stablecoin exchange",
      "tags": [
        "stablecoin",
        "exchange",
        "usdt",
        "usdc",
        "bsc"
      ]
    },
    {
      "description": "Discover purchasable and executable capabilities available to autonomous agents.",
      "id": "capability_exchange",
      "input_schema": {
        "properties": {
          "capability": {
            "type": "string"
          },
          "category": {
            "type": "string"
          },
          "paymentAsset": {
            "enum": [
              "USDT",
              "USDC"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "Capability exchange",
      "tags": [
        "capabilities",
        "marketplace",
        "discovery"
      ]
    },
    {
      "description": "Discover persistent memory operations for agent context and knowledge lookup.",
      "id": "semantic_memory",
      "name": "Semantic memory",
      "tags": [
        "memory",
        "agent-state",
        "capability"
      ]
    },
    {
      "description": "Discover OCR operations for extracting and structuring document text.",
      "id": "document_ocr",
      "name": "Document OCR",
      "tags": [
        "ocr",
        "documents",
        "capability"
      ]
    },
    {
      "description": "Discover provider-routed text generation, chat, summarization and classification.",
      "id": "llm_chat",
      "name": "LLM chat",
      "tags": [
        "llm",
        "chat",
        "summarization",
        "capability"
      ]
    }
  ],
  "status": "available",
  "url": "https://api-production-bc748.up.railway.app/a2a",
  "version": "1.0.0"
}