Recta

io.github.RectaBuild/rectaVersion 1.3.4

Proven cheaper USDC bridge route for AI agents (Across, CCTP, Stargate); fee 5% of verified saving

Status

Responds226 msNov 14, 2026, 14:41 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:41 UTC
Latency: 226 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 21:12 UTC

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Connect

Streamable HTTP

https://api.recta.build/mcpResponds226 msNov 14, 2026, 14:41 UTC

No sign-in

Claude Code

claude mcp add --transport http recta https://api.recta.build/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: recta
Remote MCP server URL: https://api.recta.build/mcp

Cursor

{
  "mcpServers": {
    "recta": {
      "url": "https://api.recta.build/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"recta","type":"http","url":"https://api.recta.build/mcp"}'

Streamable HTTP

npm: @recta/mcp 0.1.14

Package only

npm (npx)

claude mcp add recta -- npx -y @recta/mcp@0.1.14

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Tools

9 tools

Tools of Recta
	Description		Read-only	Idempotent	Open world
`recta_about`Start here. Call Recta before your agent moves stablecoins from one blockchain to another (a bridge or cross-chain transfer): give it the route you would use anyway, and it answers, for free, whether a cheaper route exists at the same chain state and proves the saving. If there is none, nothing is charged. Transfers start on: arbitrum, arc, avalanche, base, bnb_chain, ethereum, hyperevm, ink, linea, monad, optimism, polygon, unichain. They can arrive on: arbitrum, arc, avalanche, base, bnb_chain, ethereum, hyperevm, ink, linea, monad, optimism, polygon, robinhood_chain, solana_mainnet, tron_mainnet, unichain. Assets: USDC, USDC_BINANCE_PEG, USDG, USDT, USDT_BINANCE_PEG, USDT_OP_BRIDGED. Amounts: at least 3.5 tokens of a stablecoin (about 3.5 USD), no maximum. The exact corridors are in the service descriptor. Returns the full guide (llms.txt): what Recta is, the fee (5 % of the verified saving, nothing if none) and the call flow.	Start here. Call Recta before your agent moves stablecoins from one blockchain to another (a bridge or cross-chain transfer): give it the route you would use anyway, and it answers, for free, whether a cheaper route exists at the same chain state and proves the saving. If there is none, nothing is charged. Transfers start on: arbitrum, arc, avalanche, base, bnb_chain, ethereum, hyperevm, ink, linea, monad, optimism, polygon, unichain. They can arrive on: arbitrum, arc, avalanche, base, bnb_chain, ethereum, hyperevm, ink, linea, monad, optimism, polygon, robinhood_chain, solana_mainnet, tron_mainnet, unichain. Assets: USDC, USDC_BINANCE_PEG, USDG, USDT, USDT_BINANCE_PEG, USDT_OP_BRIDGED. Amounts: at least 3.5 tokens of a stablecoin (about 3.5 USD), no maximum. The exact corridors are in the service descriptor. Returns the full guide (llms.txt): what Recta is, the fee (5 % of the verified saving, nothing if none) and the call flow.	Not declared	Yes	Not declared	No
`recta_fit_check`Call first, before a cross-chain stablecoin transfer: whether Recta covers the corridor, which routes it compares, which route you can declare as yours, and the contracts a route would touch. Unsigned, free, never reveals a route or a saving.	Call first, before a cross-chain stablecoin transfer: whether Recta covers the corridor, which routes it compares, which route you can declare as yours, and the contracts a route would touch. Unsigned, free, never reveals a route or a saving.	Not declared	Yes	Not declared	No
`recta_prepare_signed_request`Step 1 of a free quote for a cross-chain transfer. Computes the exact message the agent's EVM wallet must sign (EIP-191 personal_sign) for one Recta request, and the headers to send. Holds no key and calls nothing. Then call recta_send_signed_request with the same method, path, idempotency_key, body and issued_at, plus the signature. Start with POST /v1/golden-corridor/commercial-evaluations (body: recta_request_template; its "sender" must be the signing address). If you have no wallet tool that can personal_sign, this server cannot sign for you: No signing code needed: the npm package @recta/client builds, checks and signs the request for you, and @recta/mcp (`npx -y @recta/mcp`) is a local MCP server that does it as tools: without a key it offers only the free fit check and trial; with RECTA_PRIVATE_KEY of a dedicated wallet (kept on your machine) it signs too. Evaluations are free and need no funds. Paying a fee needs the fee in USDC on Base and a USDC allowance to Permit2 (an ERC-20 approve of USDC to Permit2). If the transfer itself starts from USDC on Base, the wallet needs the transfer amount plus the fee.	Step 1 of a free quote for a cross-chain transfer. Computes the exact message the agent's EVM wallet must sign (EIP-191 personal_sign) for one Recta request, and the headers to send. Holds no key and calls nothing. Then call recta_send_signed_request with the same method, path, idempotency_key, body and issued_at, plus the signature. Start with POST /v1/golden-corridor/commercial-evaluations (body: recta_request_template; its "sender" must be the signing address). If you have no wallet tool that can personal_sign, this server cannot sign for you: No signing code needed: the npm package @recta/client builds, checks and signs the request for you, and @recta/mcp (`npx -y @recta/mcp`) is a local MCP server that does it as tools: without a key it offers only the free fit check and trial; with RECTA_PRIVATE_KEY of a dedicated wallet (kept on your machine) it signs too. Evaluations are free and need no funds. Paying a fee needs the fee in USDC on Base and a USDC allowance to Permit2 (an ERC-20 approve of USDC to Permit2). If the transfer itself starts from USDC on Base, the wallet needs the transfer amount plus the fee.	Not declared	Yes	Not declared	No
`recta_request_template`Returns the full body of the evaluation request for a corridor, an amount and the route you would use anyway (baseline_provider): you fill only your sender, recipient and gas ceilings, then sign it with recta_prepare_signed_request and recta_send_signed_request.	Returns the full body of the evaluation request for a corridor, an amount and the route you would use anyway (baseline_provider): you fill only your sender, recipient and gas ceilings, then sign it with recta_prepare_signed_request and recta_send_signed_request.	Not declared	Yes	Not declared	No
`recta_saving_odds`How many recorded decisions on this corridor found a saving against each route you could declare (counts and dates only). Unsigned and free; use it to decide whether a signed evaluation is worth it.	How many recorded decisions on this corridor found a saving against each route you could declare (counts and dates only). Unsigned and free; use it to decide whether a signed evaluation is worth it.	Not declared	Yes	Not declared	No
`recta_send_signed_request`Step 2: sends the request signed by the agent's own wallet to a Recta route and returns its HTTP status and JSON body. POST /v1/golden-corridor/commercial-evaluations returns, free, the cheapest provable route against the route the agent would use anyway, or an abstention. Executing a decision's route creates a fee of 5 % of the verified saving, capped by the permit the agent signs; no saving, no fee.	Step 2: sends the request signed by the agent's own wallet to a Recta route and returns its HTTP status and JSON body. POST /v1/golden-corridor/commercial-evaluations returns, free, the cheapest provable route against the route the agent would use anyway, or an abstention. Executing a decision's route creates a fee of 5 % of the verified saving, capped by the permit the agent signs; no saving, no fee.	No	No	Yes	Yes
`recta_service_descriptor`Call to check whether a planned cross-chain transfer is covered: the supported corridors (source and destination networks and assets), the bridges compared (Across, CCTP, Stargate, USDT0 and others), amount ranges, limits and the JSON Schema of every request and response.	Call to check whether a planned cross-chain transfer is covered: the supported corridors (source and destination networks and assets), the bridges compared (Across, CCTP, Stargate, USDT0 and others), amount ranges, limits and the JSON Schema of every request and response.	Not declared	Yes	Not declared	No
`recta_status`Call before relying on Recta in a run: whether it is ready to evaluate now, and its contract version.	Call before relying on Recta in a run: whether it is ready to evaluate now, and its contract version.	Not declared	Yes	Not declared	No
`recta_trial_evaluation`Unsigned trial of an evaluation: send the evaluation request body (from recta_request_template, with a sender and recipient filled: no wallet needed: any sender address other than the zero address, and any recipient of the destination network's kind) and get whether a cheaper provable route exists for this exact transfer, the saving (lower bound, USDC) and Recta's 5 % of it. Names no route, stores nothing, charges nothing; 3 a day per IP address. To get the route, sign the same body with recta_prepare_signed_request and recta_send_signed_request.	Unsigned trial of an evaluation: send the evaluation request body (from recta_request_template, with a sender and recipient filled: no wallet needed: any sender address other than the zero address, and any recipient of the destination network's kind) and get whether a cheaper provable route exists for this exact transfer, the saving (lower bound, USDC) and Recta's 5 % of it. Names no route, stores nothing, charges nothing; 3 a day per IP address. To get the route, sign the same body with recta_prepare_signed_request and recta_send_signed_request.	Not declared	Yes	Not declared	Yes

Details

Registry status: Active
Published: Nov 13, 2026
Updated: Nov 13, 2026
Website: https://api.recta.build/guides⁠ (opens in a new tab)
Repository: https://github.com/RectaBuild/recta⁠ (opens in a new tab)
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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