OpenChainGraph Suite · ART-250 · Stablecoin Corridors

Stablecoin Corridor Economics Model

Models the all-in cost of a USDC-based remittance corridor: on-ramp fee, chain/gas fee, off-ramp/local-rail fee, FX spread, and pre-funding float savings vs correspondent banking. Rail-agnostic. Parameterises the Felix/Circle/Bitso pattern without being tied to a specific protocol. For cross-corridor benchmarking use compare_corridor_cost (art-249). For Reg E disclosure arithmetic use compute_remittance_disclosure (art-248).

USDC Corridor Felix/Circle Case Study Break-Even Analysis SDG 10.c Proofs Deferred
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only. This tool accepts amounts and percentage rates only — no sender, recipient, or account data.
Transfer Amount
Amount in USD entering the stablecoin corridor.
Corridor Cost Components (%)
% fee to convert USD to USDC. Industry benchmark 0.5–2%.
% fee for USDC to local fiat. Industry benchmark 0.3–1.5%.
Flat chain fee in USD. Near-zero on Stellar, Solana, or L2 rails.
% FX spread on destination leg (stablecoin rails compress this vs traditional MTO).
Float Savings (optional)
Annual % saved by avoiding nostro pre-funding. Industry benchmark 2–7%.
Days of correspondent pre-funding released by stablecoin settlement. Enter 0 to exclude float savings.
Traditional MTO Benchmark
Traditional MTO benchmark to compare against. World Bank RPW SmaRT global avg is 6.36%.
Cost Components
Savings vs Traditional MTO
Execution Hash (SHA-256)







  

    
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Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.

  
Run the AINumbers MCP tool `model_stablecoin_corridor_economics`. Task: Model the all-in cost of a USDC-based remittance corridor: on-ramp fee, chain gas fee, off-ramp/local-rail fee, FX spread, and pre-funding float savings vs correspondent banking.
Call it with arguments: {"policy_parameters":{"send_amount_usd":1000,"on_ramp_fee_pct":0.5,"chain_fee_usd":0.01,"off_ramp_fee_pct":0.3,"fx_spread_pct":0.2,"float_savings_rate_pct":4,"float_days":0,"correspondent_cost_pct":6}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-250-model-stablecoin-corridor-economics.html#p=v1.H4sIAAAAAAAA_wGzAEz_eyJzZW5kX2Ftb3VudF91c2QiOjEwMDAsIm9uX3JhbXBfZmVlX3BjdCI6MC41LCJjaGFpbl9mZWVfdXNkIjowLjAxLCJvZmZfcmFtcF9mZWVfcGN0IjowLjMsImZ4X3NwcmVhZF9wY3QiOjAuMiwiZmxvYXRfc2F2aW5nc19yYXRlX3BjdCI6NCwiZmxvYXRfZGF5cyI6MCwiY29ycmVzcG9uZGVudF9jb3N0X3BjdCI6Nn1gOL9cswAAAA