{"uid":"cap_B7xf8JZ1XFz708lr0Lmw8","slug":"api-myceliasignal-com-acffb3b0","name":"MyceliaSignal EUR/CHF Price Oracle","description":"EUR/CHF forex exchange rate — euro to Swiss franc safe-haven rate — Ed25519 signed attestation","url":"https://api.myceliasignal.com/oracle/price/eur/chf","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{}}},"response":{"domain":"EURCHF","pubkey":"f4f0e52b5f7b54831f965632bf1ebf72769beda4c4e3d36a593f7729ec812615","canonical":"v1|PRICE|EURCHF|0.91|CHF|2|ecbdirect,frankfurter,norgesbank|median|1780097571|628371","signature":"faf2adb8fee99db1bc57e692d8cd3c8c0b911a47449ea2cdb31026ffb4de494f83bebda15380c62d131def7340cd84342a81ff4b76ab10e0d6447a4de8814201","signingScheme":"ed25519"}},"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YRK48zuLMbZ_K_pjS2R43","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current EUR/CHF exchange rate as an Ed25519-signed cryptographic attestation","exampleAgentPrompt":"What's the current EUR/CHF exchange rate? I need a cryptographically signed oracle attestation so I can verify its authenticity on-chain.","exampleUseCases":[{"title":"Settle cross-border euro-franc payments","prompt":"I need to process a payment from a customer in euros to a supplier in Switzerland. Can you get me the current EUR/CHF rate with a cryptographic signature so I can lock in the price and prove to the customer exactly what rate we used?"},{"title":"Validate smart contract oracle data","prompt":"My smart contract is about to execute a trade on the EUR/CHF pair. I need to fetch the current signed exchange rate and verify the Ed25519 signature before the contract processes the transaction to make sure the price data hasn't been tampered with."},{"title":"Audit compliance for regulated forex","prompt":"Our compliance team needs a tamper-proof record of the EUR/CHF rate we used for today's institutional currency exchange. Can you pull the current rate with a cryptographic attestation so we can include the signed proof in our audit trail?"}],"resultDescription":"Returns the current EUR/CHF spot exchange rate accompanied by an Ed25519 cryptographic signature, allowing consumers to verify the authenticity and integrity of the price data. Typical response includes the rate value, a timestamp, and the attestation signature.","failureModes":["Price feed temporarily unavailable — upstream data source outage","Payment not provided or rejected (x402 payment required error)","Invalid or expired payment — 402 response","Network timeout or service downtime — 503/504 response","Rate limiting if too many requests in short succession"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically verifiable EUR/CHF exchange rate — especially for smart contracts, DeFi protocols, or any use case requiring tamper-evident proof of the price. The Ed25519 signed attestation distinguishes it from plain REST forex APIs. Prefer it over unauthenticated price feeds when on-chain or auditability requirements demand proof of data provenance.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:45:00.369Z","isFirstParty":false}