[{"slug":"ZV-2026-1332","server_name":"mcp.chainhelix.io","severity":"breaking","title":"mcp.chainhelix.io: Type of p90_30d on congestion changed number → number|null.","summary":"[safe] Description of attest changed (7% word delta). [safe] Description of cleared_buyer changed (9% word delta). [breaking] Type of p90_30d on congestion changed number → number|null. [breaking] Type of median30d on congestion changed number → number|null. [breaking] Type of fastestFee on congestion changed number → number|null. [breaking] instrument on fill_receipts narrowed to a closed enum (spcx, crcl); previously valid values may now be rejected. [breaking] instrument on instrument_signals narrowed to a closed enum (spcx, crcl); previously valid values may now be rejected. [breaking] instrument on instrument_state narrowed to a closed enum (spcx, crcl); previously valid values may now be rejected. [safe] Description of lexicon_bundle changed (10% word delta). [safe] Description of lexicon_statement changed (9% word delta). [safe] Description of standing_watch changed (8% word delta). [safe] Description of stream_register changed (11% word delta). [safe] Description of stream_register_all changed (11% word delta). [safe] Description of webhook_register changed (15% word delta). [risky] Description of webhook_status changed (52% word delta). [risky] Optional field secret was added to webhook_status; may shift model behaviour.","changes":[{"kind":"description_changed","tool":"attest","after":"5 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. Seal any claim on chain now, reveal it later, a track record nobody can backdate. Send your claim as the payload string with an optional revealDelayHours from 1 to 720, default 72. Your identity is your paying wallet, or your key id. ChainHelix seals the exact time of your commitment on the opBNB chain; the claim text and salt publish automatically at reveal time. This attests WHEN you said it, never whether it is true. Verification spec: the free attest_spec tool","before":"Requires a ChainHelix API key as bearer token, or 5 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Seal any claim on chain now, reveal it later, a track record nobody can backdate. Send your claim as the payload string with an optional revealDelayHours from 1 to 720, default 72. Your identity is your paying wallet, or your key id. ChainHelix seals the exact time of your commitment on the opBNB chain; the claim text and salt publish automatically at reveal time. This attests WHEN you said it, never whether it is true. Verification spec: the free attest_spec tool","detail":"Description of `attest` changed (7% word delta).","severity":"safe","descriptionDelta":0.0674157303370787},{"kind":"description_changed","tool":"cleared_buyer","after":"2 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. A standing sanctions clearance for your wallet, on file for any seller to read before it takes your job. 2 dollars buys 30 days: the wallet that pays this call is screened now against the OFAC SDN list and the on-chain sanctions oracle, the signed statement is kept on file and renewed every 24 hours for the period, and buyer_clearance (free) returns the current statement to anyone who asks. Call again to extend; the same payment never credits twice. Pay with the wallet to be cleared: a key id cannot be cleared","before":"Requires a ChainHelix API key as bearer token, or 2 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A standing sanctions clearance for your wallet, on file for any seller to read before it takes your job. 2 dollars buys 30 days: the wallet that pays this call is screened now against the OFAC SDN list and the on-chain sanctions oracle, the signed statement is kept on file and renewed every 24 hours for the period, and buyer_clearance (free) returns the current statement to anyone who asks. Call again to extend; the same payment never credits twice. Pay with the wallet to be cleared: a key id cannot be cleared","detail":"Description of `cleared_buyer` changed (9% word delta).","severity":"safe","descriptionDelta":0.08695652173913049},{"kind":"output_type_changed","path":"outputSchema.properties.p90_30d","tool":"congestion","after":"number|null","before":"number","detail":"Type of `p90_30d` on `congestion` changed number → number|null.","severity":"breaking"},{"kind":"output_type_changed","path":"outputSchema.properties.median30d","tool":"congestion","after":"number|null","before":"number","detail":"Type of `median30d` on `congestion` changed number → number|null.","severity":"breaking"},{"kind":"output_type_changed","path":"outputSchema.properties.fastestFee","tool":"congestion","after":"number|null","before":"number","detail":"Type of `fastestFee` on `congestion` changed number → number|null.","severity":"breaking"},{"kind":"enum_narrowed","path":"inputSchema.properties.instrument","tool":"fill_receipts","after":"enum[spcx,crcl]","before":"open","detail":"`instrument` on `fill_receipts` narrowed to a closed enum (spcx, crcl); previously valid values may now be rejected.","severity":"breaking"},{"kind":"enum_narrowed","path":"inputSchema.properties.instrument","tool":"instrument_signals","after":"enum[spcx,crcl]","before":"open","detail":"`instrument` on `instrument_signals` narrowed to a closed enum (spcx, crcl); previously valid values may now be rejected.","severity":"breaking"},{"kind":"enum_narrowed","path":"inputSchema.properties.instrument","tool":"instrument_state","after":"enum[spcx,crcl]","before":"open","detail":"`instrument` on `instrument_state` narrowed to a closed enum (spcx, crcl); previously valid values may now be rejected.","severity":"breaking"},{"kind":"description_changed","tool":"lexicon_bundle","after":"19 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. Download the whole ChainHelix Agentic Lexicon for the current version: the bundle (every entry with its meaning, representation, unit, synonyms, venue aliases and sources), the licence texts, the attribution table and the change log, with the sha256 of every file. The answer is a download link per file, valid 7 days, 50 downloads; patches of this version are included, a new version is a new purchase","before":"Requires a ChainHelix API key as bearer token, or 19 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Download the whole ChainHelix Agentic Lexicon for the current version: the bundle (every entry with its meaning, representation, unit, synonyms, venue aliases and sources), the licence texts, the attribution table and the change log, with the sha256 of every file. The answer is a download link per file, valid 7 days, 50 downloads; patches of this version are included, a new version is a new purchase","detail":"Description of `lexicon_bundle` changed (10% word delta).","severity":"safe","descriptionDelta":0.10389610389610393},{"kind":"description_changed","tool":"lexicon_statement","after":"3 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. A signed conformance statement for one agent on the BNB Smart Chain ERC-8004 registry, checked against the current ChainHelix Agentic Lexicon version: every argument schema the agent publishes on its own card and on the MCP endpoints its own registration declares, per tool whether canonical names are accepted, an unknown name is refused before payment, and every argument carries a lexicon id (x-vocab); the unmapped arguments are listed. Signed EIP-191 by the ChainHelix statement signer, bound to the lexicon version, the bundle hash and the card hash. An agent that publishes no argument schemas is refused before any charge","before":"Requires a ChainHelix API key as bearer token, or 3 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A signed conformance statement for one agent on the BNB Smart Chain ERC-8004 registry, checked against the current ChainHelix Agentic Lexicon version: every argument schema the agent publishes on its own card and on the MCP endpoints its own registration declares, per tool whether canonical names are accepted, an unknown name is refused before payment, and every argument carries a lexicon id (x-vocab); the unmapped arguments are listed. Signed EIP-191 by the ChainHelix statement signer, bound to the lexicon version, the bundle hash and the card hash. An agent that publishes no argument schemas is refused before any charge","detail":"Description of `lexicon_statement` changed (9% word delta).","severity":"safe","descriptionDelta":0.08510638297872342},{"kind":"description_changed","tool":"standing_watch","after":"4 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. The standing of one ERC-8004 agent on BNB Smart Chain WATCHED for you: 4 dollars buys 7 days of standing_change messages for one agent id PUSHED to your https url, signed. The baseline standing arrives within five minutes, then one message each time the agent's evidence tier, its reachability (hireable, alive, gated, offline) or its registry feedback grade changes, each carrying the full unsigned standing (the same fields as agent_standing). For the buyer with money in escrow with an agent or an agent listed under its name. Call once per agent id; call again to renew or to watch another; manage with webhook_status and webhook_unregister. Method: standing_spec","before":"Requires a ChainHelix API key as bearer token, or 4 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. The standing of one ERC-8004 agent on BNB Smart Chain WATCHED for you: 4 dollars buys 7 days of standing_change messages for one agent id PUSHED to your https url, signed. The baseline standing arrives within five minutes, then one message each time the agent's evidence tier, its reachability (hireable, alive, gated, offline) or its registry feedback grade changes, each carrying the full unsigned standing (the same fields as agent_standing). For the buyer with money in escrow with an agent or an agent listed under its name. Call once per agent id; call again to renew or to watch another; manage with webhook_status and webhook_unregister. Method: standing_spec","detail":"Description of `standing_watch` changed (8% word delta).","severity":"safe","descriptionDelta":0.07766990291262132},{"kind":"description_changed","tool":"stream_register","after":"4 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. The MEV order flow stream PUSHED to your https URL for one chain: one signed message per completed minute with detected MEV on that chain, each carrying the per-pool rows of that minute (the same rows as mev_pressure). 4 dollars buys 7 days of one chain (bnb, ethereum, polygon or avalanche); call once per chain, and again to renew. Manage with webhook_status and webhook_unregister; the contract is in mev_flow_spec","before":"Requires a ChainHelix API key as bearer token, or 4 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. The MEV order flow stream PUSHED to your https URL for one chain: one signed message per completed minute with detected MEV on that chain, each carrying the per-pool rows of that minute (the same rows as mev_pressure). 4 dollars buys 7 days of one chain (bnb, ethereum, polygon or avalanche); call once per chain, and again to renew. Manage with webhook_status and webhook_unregister; the contract is in mev_flow_spec","detail":"Description of `stream_register` changed (11% word delta).","severity":"safe","descriptionDelta":0.10526315789473684},{"kind":"description_changed","tool":"stream_register_all","after":"10 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. The MEV order flow stream PUSHED to your https URL for all four chains at once (bnb, ethereum, polygon, avalanche): one signed message per chain per completed minute with detected MEV, each carrying the per-pool rows of that minute. 10 dollars buys 7 days of every chain, against 4 dollars per chain one at a time with stream_register. Call again to renew. Manage with webhook_status and webhook_unregister; the contract is in mev_flow_spec","before":"Requires a ChainHelix API key as bearer token, or 10 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. The MEV order flow stream PUSHED to your https URL for all four chains at once (bnb, ethereum, polygon, avalanche): one signed message per chain per completed minute with detected MEV, each carrying the per-pool rows of that minute. 10 dollars buys 7 days of every chain, against 4 dollars per chain one at a time with stream_register. Call again to renew. Manage with webhook_status and webhook_unregister; the contract is in mev_flow_spec","detail":"Description of `stream_register_all` changed (11% word delta).","severity":"safe","descriptionDelta":0.10843373493975905},{"kind":"description_changed","tool":"webhook_register","after":"70 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A ChainHelix API key does not cover this tool. Get ChainHelix events PUSHED to your https URL instead of polling: signal_sealed (the sealed signal stream the moment each signal exists), trade_closed (every finished trade with its result), lead_alert (each lead alert the moment it is written, opt in by name). The MEV flow minute stream is a separate registration, stream_register. 70 cents buys 7 days of delivery; call again with the same URL any time to extend. Deliveries are signed so you can verify each one came from us","before":"Requires a ChainHelix API key as bearer token, or 70 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Get ChainHelix events PUSHED to your https URL instead of polling: signal_sealed (the sealed signal stream the moment each signal exists), trade_closed (every finished trade with its result), lead_alert (each lead alert the moment it is written, opt in by name). The MEV flow minute stream is a separate registration, stream_register. 70 cents buys 7 days of delivery; call again with the same URL any time to extend. An active ChainHelix API key registers at no per call charge. Deliveries are signed so you can verify each one came from us","detail":"Description of `webhook_register` changed (15% word delta).","severity":"safe","descriptionDelta":0.15000000000000002},{"kind":"description_changed","tool":"webhook_status","after":"Your registered webhooks for your tenant identity (your paying wallet, or your key id), optionally narrowed to one id. Without secret each webhook shows id, active and expiry only. With the signing secret from registration, that webhook also shows its url, events, chains and watches. Never returns the secret","before":"Your registered webhooks for your tenant identity (your paying wallet, or your key id), optionally narrowed to one id. Requires your tenant so it can only show your own webhooks; never returns the signing secret","detail":"Description of `webhook_status` changed (52% word delta).","severity":"risky","descriptionDelta":0.5227272727272727},{"kind":"input_property_added","path":"inputSchema.properties.secret","tool":"webhook_status","after":{"type":"string"},"detail":"Optional field `secret` was added to `webhook_status`; may shift model behaviour.","severity":"risky"}],"published_at":"2026-09-22T23:09:13.600Z"},{"slug":"ZV-2026-1125","server_name":"mcp.chainhelix.io","severity":"breaking","title":"mcp.chainhelix.io: Type of sessions on deep_report changed object|null → array|object|null.","summary":"[safe] Tool stream_register was added. [safe] Tool stream_register_all was added. [safe] Description of cleared_buyer changed (2% word delta). [breaking] Type of sessions on deep_report changed object|null → array|object|null. [breaking] Type of optionsVolatility on deep_report changed object|null → array|object|null. [safe] Description of webhook_register changed (14% word delta).","changes":[{"kind":"tool_added","tool":"stream_register","detail":"Tool `stream_register` was added.","severity":"safe"},{"kind":"tool_added","tool":"stream_register_all","detail":"Tool `stream_register_all` was added.","severity":"safe"},{"kind":"description_changed","tool":"cleared_buyer","after":"Requires a ChainHelix API key as bearer token, or 2 dollars per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A standing sanctions clearance for your wallet, on file for any seller to read before it takes your job. 2 dollars buys 30 days: the wallet that pays this call is screened now against the OFAC SDN list and the on-chain sanctions oracle, the signed statement is kept on file and renewed every 24 hours for the period, and buyer_clearance (free) returns the current statement to anyone who asks. Call again to extend; the same payment never credits twice. Pay with the wallet to be cleared: a key id cannot be cleared","before":"Requires a ChainHelix API key as bearer token, or 200 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. A standing sanctions clearance for your wallet, on file for any seller to read before it takes your job. 2 dollars buys 30 days: the wallet that pays this call is screened now against the OFAC SDN list and the on-chain sanctions oracle, the signed statement is kept on file and renewed every 24 hours for the period, and buyer_clearance (free) returns the current statement to anyone who asks. Call again to extend; the same payment never credits twice. Pay with the wallet to be cleared: a key id cannot be cleared","detail":"Description of `cleared_buyer` changed (2% word delta).","severity":"safe","descriptionDelta":0.022222222222222254},{"kind":"output_type_changed","path":"outputSchema.properties.sessions","tool":"deep_report","after":"array|object|null","before":"object|null","detail":"Type of `sessions` on `deep_report` changed object|null → array|object|null.","severity":"breaking"},{"kind":"output_type_changed","path":"outputSchema.properties.optionsVolatility","tool":"deep_report","after":"array|object|null","before":"object|null","detail":"Type of `optionsVolatility` on `deep_report` changed object|null → array|object|null.","severity":"breaking"},{"kind":"description_changed","tool":"webhook_register","after":"Requires a ChainHelix API key as bearer token, or 70 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Get ChainHelix events PUSHED to your https URL instead of polling: signal_sealed (the sealed signal stream the moment each signal exists), trade_closed (every finished trade with its result). The MEV flow minute stream is a separate registration, stream_register. 70 cents buys 7 days of delivery; call again with the same URL any time to extend. An active ChainHelix API key registers at no per call charge. Deliveries are signed so you can verify each one came from us","before":"Requires a ChainHelix API key as bearer token, or 70 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Get ChainHelix events PUSHED to your https URL instead of polling: signal_sealed (the sealed signal stream the moment each signal exists), trade_closed (every finished trade with its result) and mev_flow (the MEV order flow per pool, one message per chain per minute, opt in by name; see mev_flow_spec). 70 cents buys 7 days of delivery; call again with the same URL any time to extend. An active ChainHelix API key registers at no per call charge. Deliveries are signed so you can verify each one came from us","detail":"Description of `webhook_register` changed (14% word delta).","severity":"safe","descriptionDelta":0.14432989690721654}],"published_at":"2026-09-16T22:02:18.315Z"},{"slug":"ZV-2026-0753","server_name":"mcp.chainhelix.io","severity":"breaking","title":"mcp.chainhelix.io: Enum value bitcoin removed from chain on liquidations.","summary":"[safe] Description of liquidations changed (7% word delta). [breaking] Enum value bitcoin removed from chain on liquidations. [breaking] Enum value solana removed from chain on liquidations. [breaking] Enum value xrp removed from chain on liquidations. [breaking] Enum value tron removed from chain on liquidations. [breaking] Enum value sui removed from chain on liquidations. [safe] Description of mev_bots changed (9% word delta). [breaking] Enum value bitcoin removed from chain on mev_bots. [breaking] Enum value solana removed from chain on mev_bots. [breaking] Enum value xrp removed from chain on mev_bots. [breaking] Enum value tron removed from chain on mev_bots. [breaking] Enum value sui removed from chain on mev_bots. [safe] Description of mev_intel changed (7% word delta). [breaking] Enum value bitcoin removed from chain on mev_intel. [breaking] Enum value solana removed from chain on mev_intel. [breaking] Enum value xrp removed from chain on mev_intel. [breaking] Enum value tron removed from chain on mev_intel. [breaking] Enum value sui removed from chain on mev_intel. [safe] Description of stablecoin_flows changed (9% word delta). [breaking] Enum value bitcoin removed from chain on stablecoin_flows. [breaking] Enum value solana removed from chain on stablecoin_flows. [breaking] Enum value xrp removed from chain on stablecoin_flows. [breaking] Enum value tron removed from chain on stablecoin_flows. [breaking] Enum value sui removed from chain on stablecoin_flows. [safe] Description of whale_flows changed (10% word delta). [breaking] Enum value bitcoin removed from chain on whale_flows.","changes":[{"kind":"description_changed","tool":"liquidations","after":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Lending liquidations per chain, protocol and direction over a window: event count, borrowers and liquidators, debt covered and collateral liquidated. window in hours, default 24, max 720. Omit chain for all Chains covered: ethereum, bnb, avalanche, polygon.","before":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Lending liquidations per chain, protocol and direction over a window: event count, borrowers and liquidators, debt covered and collateral liquidated. window in hours, default 24, max 720. Omit chain for all","detail":"Description of `liquidations` changed (7% word delta).","severity":"safe","descriptionDelta":0.0714285714285714},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"liquidations","before":"bitcoin","detail":"Enum value `bitcoin` removed from `chain` on `liquidations`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"liquidations","before":"solana","detail":"Enum value `solana` removed from `chain` on `liquidations`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"liquidations","before":"xrp","detail":"Enum value `xrp` removed from `chain` on `liquidations`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"liquidations","before":"tron","detail":"Enum value `tron` removed from `chain` on `liquidations`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"liquidations","before":"sui","detail":"Enum value `sui` removed from `chain` on `liquidations`.","severity":"breaking"},{"kind":"description_changed","tool":"mev_bots","after":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Active MEV bot addresses on a chain: detections, strategy types seen, first and last seen, high confidence flag. Ordered by detections. active_hours default 168, limit default 50, max 200 Chains covered: ethereum, bnb, avalanche, polygon.","before":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Active MEV bot addresses on a chain: detections, strategy types seen, first and last seen, high confidence flag. Ordered by detections. active_hours default 168, limit default 50, max 200","detail":"Description of `mev_bots` changed (9% word delta).","severity":"safe","descriptionDelta":0.08620689655172409},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_bots","before":"bitcoin","detail":"Enum value `bitcoin` removed from `chain` on `mev_bots`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_bots","before":"solana","detail":"Enum value `solana` removed from `chain` on `mev_bots`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_bots","before":"xrp","detail":"Enum value `xrp` removed from `chain` on `mev_bots`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_bots","before":"tron","detail":"Enum value `tron` removed from `chain` on `mev_bots`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_bots","before":"sui","detail":"Enum value `sui` removed from `chain` on `mev_bots`.","severity":"breaking"},{"kind":"description_changed","tool":"mev_intel","after":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. MEV event rates per chain and type vs the trailing weekly pace. window in hours, default 24, max 168. Types overlap and must not be summed: a backrun transaction also emits an arbitrage row. NFT coverage is ERC-721 only, so nft_mev excludes all ERC-1155 activity. Chains covered: ethereum, bnb, avalanche, polygon.","before":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. MEV event rates per chain and type vs the trailing weekly pace. window in hours, default 24, max 168. Types overlap and must not be summed: a backrun transaction also emits an arbitrage row. NFT coverage is ERC-721 only, so nft_mev excludes all ERC-1155 activity.","detail":"Description of `mev_intel` changed (7% word delta).","severity":"safe","descriptionDelta":0.06666666666666665},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_intel","before":"bitcoin","detail":"Enum value `bitcoin` removed from `chain` on `mev_intel`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_intel","before":"solana","detail":"Enum value `solana` removed from `chain` on `mev_intel`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_intel","before":"xrp","detail":"Enum value `xrp` removed from `chain` on `mev_intel`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_intel","before":"tron","detail":"Enum value `tron` removed from `chain` on `mev_intel`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"mev_intel","before":"sui","detail":"Enum value `sui` removed from `chain` on `mev_intel`.","severity":"breaking"},{"kind":"description_changed","tool":"stablecoin_flows","after":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Stablecoin mints and burns per chain and coin over a window: counts, total dollars, large events, and the net of mints minus burns. window in hours, default 24, max 720. Omit chain for all Chains covered: ethereum, bnb, avalanche, polygon.","before":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Stablecoin mints and burns per chain and coin over a window: counts, total dollars, large events, and the net of mints minus burns. window in hours, default 24, max 720. Omit chain for all","detail":"Description of `stablecoin_flows` changed (9% word delta).","severity":"safe","descriptionDelta":0.08771929824561409},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"stablecoin_flows","before":"bitcoin","detail":"Enum value `bitcoin` removed from `chain` on `stablecoin_flows`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"stablecoin_flows","before":"solana","detail":"Enum value `solana` removed from `chain` on `stablecoin_flows`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"stablecoin_flows","before":"xrp","detail":"Enum value `xrp` removed from `chain` on `stablecoin_flows`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"stablecoin_flows","before":"tron","detail":"Enum value `tron` removed from `chain` on `stablecoin_flows`.","severity":"breaking"},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"stablecoin_flows","before":"sui","detail":"Enum value `sui` removed from `chain` on `stablecoin_flows`.","severity":"breaking"},{"kind":"description_changed","tool":"whale_flows","after":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Large transfer counts and USD totals per chain. window in hours default 24 max 168, threshold 500000 USD. Chains covered: every chain except bitcoin","before":"Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Large transfer counts and USD totals per chain. window in hours default 24 max 168, threshold 500000 USD","detail":"Description of `whale_flows` changed (10% word delta).","severity":"safe","descriptionDelta":0.10204081632653061},{"kind":"enum_value_removed","path":"inputSchema.properties.chain","tool":"whale_flows","before":"bitcoin","detail":"Enum value `bitcoin` removed from `chain` on `whale_flows`.","severity":"breaking"}],"published_at":"2026-09-06T00:13:16.403Z"}]