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MCP live MCP 2025-11-25 streamable-http

Robyn — Gasless Cross-Chain for AI Agents

io.github.ox31461/robyn

Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.

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Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

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Uptime
100.0%
5 direct probes · 30d
Response
717ms
last probe
Tools
87
callable
Resources
0
readable
Prompts
0
available
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
87 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
87 items in total; 3 or more earns these points.
pass Describes itself 10/10
97 characters; more than 30 earns these points.

Tools · 87

robyn_privacy_posture

ONE read that tells you, for a chain and for the lane you reached Robyn on, exactly what stays private (relay lane, PQ transport, private mempool / sequencer) and what is still public (on-chain settle…

robyn_receipt_deliver

Hands a relayer-signed settlement receipt (from robyn_settle / a completed route) to the counterparty's sealed messaging-v2 mailbox, so they get verifiable proof (terms honored, authorized, clean prov…

robyn_receipt_verify

Checks digest + relayer signature + signed terms of a receipt you received (e.g. opened from your v2 mailbox). Read-only.

robyn_mesh

List the Robyn gasless chains and the cross-chain route graph (22 EVM nodes + Stellar), plus the relayer/Permit2 addresses. No credentials needed.

robyn_quote

Best gasless route to move a token from one Robyn chain to another. Returns estimated output, the bridge used, duration, and the Robyn fee. Read-only — moves nothing. IMPORTANT: check `quoteOnly` on t…

robyn_settle

The one-verb primitive. Say where value should go; Robyn returns the best route (all rails compared), the gasless method (no native token needed), the privacy posture that will apply (API-relay + priv…

robyn_attestation

Returns a relayer-SIGNED attestation that, as of a signed timestamp, every component was up (router, signing daemons, MCP, privacy relay) AND the privacy invariants held — the adversary probes could n…

robyn_preflight

Run this before robyn_prepare/robyn_submit. Returns decision GO or NO_GO plus typed `blockers` (each with a `fix`) and `warnings`. It catches, for free, the failures that otherwise cost gas: a fixed c…

robyn_vip_status

Check whether an address holds a recognised member NFT and what it gets. Members pay ZERO on cross-chain transfers of $0.10-$25 to low-cost chains, 15bps instead of 25bps routing, and 10% instead of 2…

robyn_route_status

Status of an in-flight route by id (BRIDGING → DONE), with the destination tx once delivered.

robyn_cross_chain

Plan a gasless cross-chain move and get the exact payload to sign. This hosted server never holds your key: call this, sign what it returns with your own wallet, then call robyn_submit to have the rel…

robyn_prepare

Turn a plain-language or structured intent into a concrete plan plus the EXACT payload to sign. Costs nothing, moves nothing, needs no key. Returns status:"sign" with signRequest, or status:"quoted" i…

robyn_sandbox_do

Runs the identical path end to end against the sandbox: no key, no funds, no broadcast. Use this to prove an integration works before touching real money.

robyn_submit

Relay an intent you already signed. The relayer broadcasts it and fronts all network gas; your account needs no native token. Build `permit2` from robyn_prepare: sign its signRequest.eip712 payload (c…

robyn_netting_info

Explains the opt-in netting ledger: transfers between two ENROLLED accounts settle as a book entry — no chain, no gas, no fee, instant, at ANY size including amounts below every per-chain cost floor. …

robyn_netting_account

Whether an address is enrolled (and therefore custodied), its internal balance, recent history, and `nextNonce` — which you MUST use when signing the next transfer or withdrawal. An address that never…

robyn_netting_preview

Free and read-only. Given an amount, ranks EVERY exit chain by what actually arrives after the destination payout cost is deducted. Those costs differ by more than 1000x (Avalanche delivers ~$0.99994 …

robyn_netting_statement

Internal transfers produce NO transaction hash because no transaction occurs — this append-only journal is their only record. Never truncated; page with `before` (a seq number). Use this when a user a…

robyn_netting_reserves

Publishes what Robyn OWES across all netting accounts against the real relayer float backing it, per chain. Solvency is checkable rather than asserted. Deposits are refused if they would push liabilit…

robyn_netting_enroll_payload

Returns the EXACT message the account must sign with its OWN key to open a custodial balance. This endpoint holds no key and enrols nobody — it returns the text; the user signs it, then POST {address,…

robyn_netting_transfer_payload

Returns the exact string to sign, with the correct next nonce, for a free instant transfer between two ENROLLED accounts. Signs nothing and moves nothing — the sender signs the returned message, then …

robyn_counterparty_check

Your OWN payment history with a recipient address: how many times, how recently, and whether this amount is typical. Call it before paying an address you have not confirmed. THIS IS NOT A REPUTATION S…

robyn_preflight_full

ONE call combining serviceability, routing competitiveness, cheaper alternatives, delivery basis and mandate budget into a single go/no-go. Call this before executing rather than making five separate …

robyn_integration_lint

Post the request you INTEND to make and get back what is missing or unsafe, with the concrete consequence. Run this before your first live execute. Findings marked `unsafe` can lose money or make you …

robyn_recipes

Ordered playbooks for real goals: pay-someone-safely, prove-what-i-spent, spend-within-a-budget, handle-failures-well, stay-current. CALL THIS BEFORE IMPROVISING A SEQUENCE. Each step says what it ans…

robyn_changelog

Machine-readable API history. Pass the version your integration was built against as `since` and you get only what has changed after it, with an explicit `breaking` flag on each entry. CHECK `mustAct`…

robyn_errors

The full error taxonomy: every errorCode, whether it is retryable, and the suggested recovery action. Read this once and branch on errorCode instead of parsing messages.

robyn_verify_outcome

Check what ACTUALLY happened to a settled transfer, against the destination chain rather than Robyn's own database. Optionally assert who should have been paid (`recipient`) and the minimum that shoul…

robyn_plan

Validate a WHOLE multi-step workflow up front instead of one hop at a time. Fees and durations accumulate across steps. Evaluation stops at the first unroutable step rather than reporting speculative …

robyn_spend_statement

A statement of every transfer in a window with each fee broken down, SIGNED by Robyn's relayer key (EIP-191). Use this when you must PROVE to a principal what you spent — your own summary is a claim b…

robyn_fee_forensics

Reconstruct a settled transfer unit by unit: destination payout gas, Robyn margin, or a Robyn SUBSIDY where Robyn absorbed a loss. Each line names who was paid and how the figure was derived. Anything…

robyn_delivery_stats

How long settlements ACTUALLY take, per rail and per corridor — not a single advertised constant. CHECK `basis`/`status`: below the sample threshold this returns `insufficient-data` and the figure is …

robyn_mandate_events

Poll for spend, nearly-exhausted, exhausted, approval-required and revoked events on a principal's mandates. Pass the returned `cursor` back as `since` for only what is new. Use this to tell a princip…

robyn_mandate_list

List all mandates granted by a principal address, with remaining budget, co-sign threshold, expiry and revocation state. Use this before telling a user they are safe: live mandates can still be drawn …

robyn_mandate_cosign_request

For mandates with a co-sign threshold, check whether a specific spend needs the principal to approve it and get the exact digest they must sign. The digest binds the mandate, the transfer AND the amou…

robyn_mandate_certificate

A signed certificate listing every spend counted against a mandate, the budget, the total spent, and whether it stayed inside. Hand it to the principal at the end of a period. Every spend listed was V…

robyn_mandate_check

Check a proposed spend against a signed spending mandate BEFORE making it. Returns WITHIN_MANDATE, EXCEEDS_MANDATE or EXPIRED plus the remaining budget. If EXCEEDS_MANDATE, do NOT split the spend into…

robyn_mandate_status

Remaining and consumed budget for a signed mandate. Consumption counts ONLY transfers verified on-chain, so the figure cannot be inflated by claiming spends that did not happen.

robyn_improve_cost

Turns a price into a decision. Returns concrete, QUANTIFIED changes — a cheaper destination chain with the exact saving, the size at which a fixed payout cost stops dominating, whether the instant flo…

robyn_why_this_route

Returns the full routing decision: every rail that quoted, what each would deliver, the margin the winner won by, and which rails stayed SILENT and why. Signed, so you can archive the rationale. CHECK…

robyn_capability_snapshot

A signed, timestamped record of current capability: which chains can actually be PAID OUT ON right now, which are merely policy-eligible, which rails are execute-ready, and whether delivery figures ar…

robyn_evidence_bundle

Assembles EVERYTHING about a settled transfer in one call: the on-chain verification, the unit-by-unit fee breakdown, what the alternative route would have cost, and whether the delivery time is measu…

robyn_payment_request_prepare

Build a canonical payment request (payee, chain, token, amount, memo, expiry) and return the digest for THE PAYEE to sign with their own wallet. Robyn does not sign these and holds no payee keys — a r…

robyn_payment_request_verify

ALWAYS run this before paying a request you received. It confirms the payee address, chain, token and amount were signed by whoever controls the payee address, and that the request has not expired. If…

robyn_payment_request_settlement

After paying, prove it: re-checks the transfer against the DESTINATION CHAIN and confirms the payee was paid at least the amount requested. Returns paid=true only on a verified on-chain result; paid=n…

robyn_refusal_verify

Check a signed refusal receipt. Send header `x-anygas-receipt: 1` on any request and, IF Robyn refuses it, the error response carries a signed `refusalReceipt` recording what was asked, when, and why.…

robyn_7702_delegate

The canonical Robyn EIP-7702 batch-executor delegate: its address on each of the 22 EVM chains, the ABI, and the EIP-712 scheme for executeSigned. Delegate to this and the relayer can sponsor your tra…

robyn_7702_check

Check that a signed EIP-7702 authorization tuple recovers the expected account, and whether its nonce matches the live account nonce. Free, read-only, moves nothing.

robyn_sponsor_7702

Price or request an EIP-7702 sponsored transaction: Robyn submits your signed authorization as a type-4 transaction and PAYS THE GAS, so your account needs no native token. Over this HOSTED endpoint t…

robyn_yield_account

An agent's own Aave v3 / Moonwell position (aUSDC/mUSDC) per chain + the capped allowance it granted the relayer + live APY (best-yield auto-selected). Non-custodial: funds stay in the agent's wallet,…

robyn_yield_quote

Read-only JIT quote: how a spend would be fulfilled from an agent's Aave yield venue (draw <= your allowance -> Aave/Moonwell withdraw -> gasless deliver). Moves nothing.

robyn_yield_spend

Spend from your yield (Aave v3 or Moonwell) with ONE EIP-712 signature: Robyn pulls only up to your on-chain aUSDC/mUSDC allowance, unwinds exactly what is needed, and delivers gaslessly; the remainde…

robyn_message_info

Sonar — PRIVATE · SEALED · POST-QUANTUM MESSENGER (broadcast to everyone, understood by one, remembered by none). Hybrid ML-KEM-768+X25519 encryption, a one-time stealth handle per message, fixed-size…

robyn_message_directory

Every published v2 mailbox. PUBLIC rows carry {address, metaAddress, kemPub}; PRIVATE rows (the default since 2026-08-28) carry {handle, metaAddress, kemPub} and deliberately NO address. Identical for…

robyn_message_mailbox_of

For a Robyn name or NULL handle the server must resolve it, so this reveals your intended recipient to the server — prefer robyn_message_directory when you have an address. Returns {address|handle, me…

robyn_message_send

Relays a message you sealed locally with /svc/msg2-sdk.mjs (seal(mailbox, inner) → {ephemeralPubKey, viewTag, ct}). This tool cannot encrypt for you: sending plaintext here would expose it to the rela…

robyn_message_feed

Returns released rows {id, ephemeralPubKey, viewTag, ct, releaseAt, nextAfter}, identical for every reader. Scan locally with the SDK (inbox(identity)) — checkStealthAddress with your viewPriv, then o…

robyn_message_publish_mailbox

Registers a mailbox so others can seal to you. PRIVATE BY DEFAULT: the server stores only a salted hash of your signing address — pass `handle` to be reachable by name (agents get the same handle clai…

robyn_plus_info

Plus sells capacity (rate-limit-exempt sends), funded cover rows and signed/anchored Merkle proofs — never a "more private lane" (that would be a smaller crowd). Paid in ETH (Robinhood Chain, Ethereum…

robyn_plus_invoice

Creates an invoice for one bundle (500 passes, $3 quoted in the chosen asset). Returns {invoiceId, payTo, amount (base units), human, chainId, expires}. Pay from any wallet; then blind tokens locally …

robyn_plus_invoice_status

Status, remaining passes and payment details for an invoice. Read-only.

robyn_plus_trial

Try Plus before paying: submit up to 20 BLINDED tokens (base64, from plus-sdk blindTokens()) and receive blind signatures — identical BLINDED passes to paid ones (the server never sees a pass; unlinka…

robyn_plus_claim

Submit BLINDED tokens (base64, from plus-sdk blindTokens()) with the payment txHash. Payment is verified on-chain (recipient, amount, confirmation; one tx pays one invoice), then each blinded token is…

robyn_message_anchor_proof

Merkle inclusion proof for an anchored row id: leaf, path, root, the signer’s EIP-191 signature over the batch statement and the on-chain tx when enabled. Verify locally with plus-sdk verifyAnchorProo…

robyn_message_erasure

The last purge statement (expired count, cumulative, root of purged ids) signed by the operator. Read-only.

null_ecosystem

The live NULL manifest: every product (messenger, Pay, Vault, Drop, Legacy, Agent Wire, forward secrecy), its status, its page, the wired/proposed integrations between them, the security spine, and th…

null_names_quote

Quotes a handle: 3ch $512/yr, 4ch $128/yr, 5-6ch $4/yr (deliberately under ENS), 7+ characters FREE forever. Includes live state (available/registered/grace/premium with the 21-day Dutch decay) and th…

null_names_market

Live listings of premium handles for sale, plus the full deal protocol: agree peer-to-peer in a sealed chat, pay stealth or via NULL Escrow 2-of-3, then finalize with the dual-signed (secp + ML-DSA) w…

null_prekeys_fetch

Fetches {spk, sigSpk, otk, otksLeft} for a recipient so you can start an X3DH-PQ forward-secret session (SDK: fs.startOutbound). ALWAYS fetch by META-ADDRESS: the sigSpk check verifies against the met…

null_prekeys_publish

Makes you reachable with forward secrecy: publishes your signed prekey bundle (medium-term spk + one-time otks) so peers can start X3DH-PQ sessions TO you. Generate and sign locally with the SDK (fs.g…

null_balance

Reads an address balance through the NULL server-side RPC proxy, so YOUR IP never reaches any public RPC provider (this host queries upstream from its own address). BE HONEST ABOUT THE TRADE: querying…

null_notarize

Proof-of-existence: hash the document LOCALLY (sha256, 64 hex) and send only the hash. The issuer countersigns {h, ts} with ML-DSA-65 (post-quantum); ts is SERVER-assigned. Optional owner endorsement:…

null_prov_issuer

Returns the post-quantum issuer public key that countersigns notary attestations, provenance mints and the witness-log head. Pin it once and verify everything against the pinned copy - a proof should …

null_prov_mint

Relays a provenance request you signed LOCALLY (SDK mintProvenance builds it): {meta, claim, ts, sig, bind, sig2}. A post-quantum identity MUST include sig2 (ML-DSA) or the issuer refuses. The issuer …

null_login_verify

Stateless dual-signature check (secp256k1 + ML-DSA-65) of a NULLAUTH1 assertion for YOUR rp domain and the ONE-TIME challenge YOU issued; returns {ok, psid, mode, named, meta, handle(claim)}. Prefer v…

null_witness_head

ML-DSA-signed head {seq, root, sig} of the append-only log that binds every mailbox record (slot|meta|kemPub|ts). Signed by the SAME issuer key as null_prov_issuer. Keep the last head you saw; a later…

null_witness_range

Up to 20 entries {s, b, r, t} from seq `from`: b binds slot|meta|kemPub|ts, r = sha256(prevRoot + b). Replay the chain from a head you trust to prove a mailbox binding was never silently swapped. Publ…

null_transparency

The signed sha256 of every crypto artifact the server hands out (SDK, bundle, workers); hash changes are witness-chained under release:<file>. Fetch an artifact, hash it, compare - a mismatch means yo…

null_capsule_cancel

Destroys a future-dated capsule you sent with {holdMs, cancellable:true}, using its one-time cancel token. Already-released rows are untouchable. The token proves nothing about who you are. Private-la…

null_calls_info

What the blind call relay offers (1:1 and conference, codecs, join-token model). Media keys are sealed through the feed and never reach the relay. Calls themselves need a media-capable client (browser…

null_void_descriptor

Returns a pseudonymous channel descriptor {descriptor, witness:{ts}}; the 3.3 KB ML-DSA signature and the handle-ownership proof come as separate parts (part=sig | part=proof) because they cannot shar…

null_void_directory

Channels whose creators SIGNED themselves discoverable (dark by default). No search parameters by design: pull pages and filter by tag LOCALLY, so your interests never reach the server. Opaque cursor,…

null_void_publish

Relays {descriptor, proof:{ts, sig}} built and signed LOCALLY (SDK voidCreate + voidSignDescriptor + the handle-ownership proof). The registry accepts only the handle owner and stores nothing but the …

null_market_listings

Every current listing {card, at}; identical for every reader. The registry checked only the classical half of each card when it was listed, so it is never a trust oracle: verify the FULL dual signatur…

null_market_list

Relays a NULLCRED1 card the agent issued ABOUT ITSELF (subject = issuer = its own meta; SDK credentialIssue, or the stdio door null_market_list_me which mints it for you). One listing per identity, 30…

null_market_delist

Relays a fresh (<10 min) self-issued card whose claim is {purpose:"delist"} - a public listing card can never be replayed to delist someone. A market moderator adds modCred (a role credential {kind:ro…

null_agent_guide

One read that teaches an agent to use every NULL capability with the right privacy posture: create an identity, seal + send + scan, start forward-secret sessions, drop an anonymous tip, check a Legacy…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "robyn_\u2014_gasless_cross-chain_for_ai_agents": {
      "url": "https://api.anygas.xyz/mcp",
      "transport": "streamable-http"
    }
  }
}